Added a big bunch of example lua scripts for testing the speed of lua compiling.

182 files changed, 30522 insertions, 0 deletions

diff --git a/LuaSL/testLua/ilua.lua b/LuaSL/testLua/ilua.lua
new file mode 100644
index 0000000..f58505a
--- /dev/null
+++ b/LuaSL/testLua/ilua.lua
@@ -0,0 +1,381 @@
+-- ilua.lua
+-- A more friendly Lua interactive prompt
+-- doesn't need '='
+-- will try to print out tables recursively, subject to the pretty_print_limit value.
+-- Steve Donovan, 2007
+--
+local pretty_print_limit = 20
+local max_depth = 7
+local table_clever = true
+local prompt = '> '
+local verbose = false
+local strict = true
+-- suppress strict warnings
+_ = true
+
+-- imported global functions
+local sub = string.sub
+local match = string.match
+local find = string.find
+local push = table.insert
+local pop = table.remove
+local append = table.insert
+local concat = table.concat
+local floor = math.floor
+local write = io.write
+local read = io.read
+
+local savef
+local collisions = {}
+local G_LIB = {}
+local declared = {}
+local line_handler_fn, global_handler_fn
+local print_handlers = {}
+
+ilua = {}
+local num_prec
+local num_all
+
+local jstack = {}
+
+local function oprint(...)
+    if savef then
+        savef:write(concat({...},' '),'\n')
+    end
+    print(...)
+end
+
+local function join(tbl,delim,limit,depth)
+    if not limit then limit = pretty_print_limit end
+    if not depth then depth = max_depth end
+    local n = #tbl
+    local res = ''
+    local k = 0
+    -- very important to avoid disgracing ourselves with circular referencs...
+    if #jstack > depth then
+        return "..."
+    end
+    for i,t in ipairs(jstack) do
+        if tbl == t then
+            return "<self>"
+        end
+    end
+    push(jstack,tbl)
+    -- this is a hack to work out if a table is 'list-like' or 'map-like'
+    -- you can switch it off with ilua.table_options {clever = false}
+    local is_list
+    if table_clever then
+        local index1 = n > 0 and tbl[1]
+        local index2 = n > 1 and tbl[2]
+        is_list = index1 and index2
+    end
+    if is_list then
+        for i,v in ipairs(tbl) do
+            res = res..delim..val2str(v)
+            k = k + 1
+            if k > limit then
+                res = res.." ... "
+                break
+            end
+        end
+    else
+        for key,v in pairs(tbl) do
+            if type(key) == 'number' then
+                key = '['..tostring(key)..']'
+            else
+                key = tostring(key)
+            end
+            res = res..delim..key..'='..val2str(v)
+            k = k + 1
+            if k > limit then
+                res = res.." ... "
+                break
+            end            
+        end
+    end
+    pop(jstack)
+    return sub(res,2)
+end
+
+
+function val2str(val)
+    local tp = type(val)
+    if print_handlers[tp] then
+        local s = print_handlers[tp](val)
+        return s or '?'
+    end
+    if tp == 'function' then
+        return tostring(val)
+    elseif tp == 'table' then
+        if val.__tostring  then
+            return tostring(val)
+        else
+            return '{'..join(val,',')..'}'
+        end
+    elseif tp == 'string' then
+        return "'"..val.."'"
+    elseif tp == 'number' then
+        -- we try only to apply floating-point precision for numbers deemed to be floating-point,
+        -- unless the 3rd arg to precision() is true.
+        if num_prec and (num_all or floor(val) ~= val) then
+            return num_prec:format(val)
+        else
+            return tostring(val)
+        end
+    else
+        return tostring(val)
+    end
+end
+
+function _pretty_print(...)
+    for i,val in ipairs(arg) do
+        oprint(val2str(val))
+    end
+    _G['_'] = arg[1]
+end
+
+function compile(line)
+    if verbose then oprint(line) end
+    local f,err = loadstring(line,'local')
+    return err,f
+end
+
+function evaluate(chunk)
+    local ok,res = pcall(chunk)
+    if not ok then
+        return res
+    end
+    return nil -- meaning, fine!
+end
+
+function eval_lua(line)
+    if savef then
+        savef:write(prompt,line,'\n')
+    end
+    -- is the line handler interested?
+    if line_handler_fn then
+        line = line_handler_fn(line)
+        -- returning nil here means that the handler doesn't want
+        -- Lua to see the string
+        if not line then return end
+    end
+    -- is it an expression?
+    local err,chunk = compile('_pretty_print('..line..')')
+    if err then
+        -- otherwise, a statement?
+        err,chunk = compile(line)
+    end
+    -- if compiled ok, then evaluate the chunk
+    if not err then
+        err = evaluate(chunk)
+    end
+    -- if there was any error, print it out
+    if err then
+        oprint(err)
+    end
+end
+
+local function quit(code,msg)
+    io.stderr:write(msg,'\n')
+    os.exit(code)
+end
+
+-- functions available in scripts
+function ilua.precision(len,prec,all)
+    if not len then num_prec = nil
+    else
+        num_prec = '%'..len..'.'..prec..'f'
+    end
+    num_all = all
+end     
+
+function ilua.table_options(t)
+    if t.limit then pretty_print_limit = t.limit end
+    if t.depth then max_depth = t.depth end
+    if t.clever ~= nil then table_clever = t.clever end
+end
+
+-- inject @tbl into the global namespace
+function ilua.import(tbl,dont_complain,lib)
+    lib = lib or '<unknown>'
+    if type(tbl) == 'table' then
+        for k,v in pairs(tbl) do
+            local key = rawget(_G,k)
+            -- NB to keep track of collisions!
+            if key and k ~= '_M' and k ~= '_NAME' and k ~= '_PACKAGE' and k ~= '_VERSION' then
+                append(collisions,{k,lib,G_LIB[k]})
+            end
+            _G[k] = v
+            G_LIB[k] = lib
+        end
+    end
+    if not dont_complain and  #collisions > 0  then
+        for i, coll in ipairs(collisions) do
+            local name,lib,oldlib = coll[1],coll[2],coll[3]
+            write('warning: ',lib,'.',name,' overwrites ')
+            if oldlib then
+                write(oldlib,'.',name,'\n')
+            else
+                write('global ',name,'\n')
+            end
+        end
+    end
+end
+
+function ilua.print_handler(name,handler)
+    print_handlers[name] = handler
+end
+
+function ilua.line_handler(handler)
+    line_handler_fn = handler
+end
+
+function ilua.global_handler(handler)
+    global_handler_fn = handler
+end
+
+function ilua.print_variables()
+    for name,v in pairs(declared) do
+        print(name,type(_G[name]))
+    end
+end
+--
+-- strict.lua
+-- checks uses of undeclared global variables
+-- All global variables must be 'declared' through a regular assignment
+-- (even assigning nil will do) in a main chunk before being used
+-- anywhere.
+--
+local function set_strict()
+    local mt = getmetatable(_G)
+    if mt == nil then
+        mt = {}
+        setmetatable(_G, mt)
+    end
+
+    local function what ()
+        local d = debug.getinfo(3, "S")
+        return d and d.what or "C"
+    end
+
+    mt.__newindex = function (t, n, v)
+        declared[n] = true
+        rawset(t, n, v)
+    end
+      
+    mt.__index = function (t, n)
+        if not declared[n] and what() ~= "C" then
+            local lookup = global_handler_fn and global_handler_fn(n)
+            if not lookup then
+                error("variable '"..n.."' is not declared", 2)
+            else
+                return lookup
+            end
+        end
+        return rawget(t, n)
+    end
+
+end
+
+--- Initial operations which may not succeed!
+-- try to bring in any ilua configuration file; don't complain if this is unsuccessful
+pcall(function()    
+    require 'ilua-defs'
+end)
+
+-- Unix readline support, if readline.so is available...
+local rl,readline,saveline
+err = pcall(function()
+    rl = require 'readline'  
+    readline = rl.readline
+    saveline = rl.add_history
+end)
+if not rl then
+    readline = function(prompt)
+        write(prompt)
+        return read()
+    end
+    saveline = function(s) end
+end
+
+-- process command-line parameters
+if arg then
+    local i = 1
+    
+    local function parm_value(opt,parm,def)
+        local val = parm:sub(3)
+        if #val == 0 then
+            i = i + 1
+            if i > #arg then 
+                if not def then
+                    quit(-1,"expecting parameter for option '-"..opt.."'")
+                else
+                    return def
+                end
+            end
+            val = arg[i]
+        end
+        return val
+    end
+    
+    while i <= #arg do
+        local v = arg[i]
+        local opt = v:sub(1,1)
+        if opt == '-' then
+            opt = v:sub(2,2)                    
+            if opt == 'h' then
+                quit(0,"ilua (-l lib) (-L lib) (lua files)")            
+            elseif opt == 'l' then
+                require (parm_value(opt,v))
+            elseif opt == 'L' then
+                local lib = parm_value(opt,v)
+                local tbl = require (lib)
+                -- we cannot always trust require to return the table!
+                if type(tbl) ~= 'table' then
+                    tbl = _G[lib]
+                end
+                ilua.import(tbl,true,lib)
+            elseif opt == 't' or opt == 'T' then
+                local file
+                if opt == 'T' then
+                    file = 'ilua_'..os.date ('%y_%m_%d_%H_%M')..'.log'
+                else
+                    file = parm_value(opt,v,"ilua.log")
+                end
+                print('saving transcript "'..file..'"')
+                savef = io.open(file,'w')
+                savef:write('! ilua ',concat(arg,' '),'\n')
+            elseif opt == 's' then
+                strict = false
+            elseif opt == 'v' then
+                verbose = true
+            end
+        else -- a plain file to be executed immediately
+            dofile(v)
+        end
+        i = i + 1
+    end
+end
+    
+print 'ILUA: Lua 5.1.2  Copyright (C) 1994-2007 Lua.org, PUC-Rio\n"quit" to end'
+
+-- any import complaints?
+ilua.import()
+
+-- enable 'not declared' error
+if strict then 
+    set_strict()
+end
+
+local line = readline(prompt)
+while line do    
+    if line == 'quit' then break end
+    eval_lua(line)
+    saveline(line)
+    line = readline(prompt)
+end
+
+if savef then
+    savef:close()
+end
+
diff --git a/LuaSL/testLua/lua.lua b/LuaSL/testLua/lua.lua
new file mode 100644
index 0000000..40d0eb8
--- /dev/null
+++ b/LuaSL/testLua/lua.lua
@@ -0,0 +1,357 @@
+-- lua.lua - Lua 5.1 interpreter (lua.c) reimplemented in Lua.
+--
+-- WARNING: This is not completed but was quickly done just an experiment.
+-- Fix omissions/bugs and test if you want to use this in production.
+-- Particularly pay attention to error handling.
+--
+-- (c) David Manura, 2008-08
+-- Licensed under the same terms as Lua itself.
+-- Based on lua.c from Lua 5.1.3.
+-- Improvements by Shmuel Zeigerman.
+
+-- Variables analogous to those in luaconf.h
+local LUA_INIT = "LUA_INIT"
+local LUA_PROGNAME = "lua"
+local LUA_PROMPT   = "> "
+local LUA_PROMPT2  = ">> "
+local function LUA_QL(x) return "'" .. x .. "'" end
+
+-- Variables analogous to those in lua.h
+local LUA_RELEASE   = "Lua 5.1.3"
+local LUA_COPYRIGHT = "Copyright (C) 1994-2008 Lua.org, PUC-Rio"
+
+
+-- Note: don't allow user scripts to change implementation.
+-- Check for globals with "cat lua.lua | luac -p -l - | grep ETGLOBAL"
+local _G = _G
+local assert = assert
+local collectgarbage = collectgarbage
+local loadfile = loadfile
+local loadstring = loadstring
+local pcall = pcall
+local rawget = rawget
+local select = select
+local tostring = tostring
+local type = type
+local unpack = unpack
+local xpcall = xpcall
+local io_stderr = io.stderr
+local io_stdout = io.stdout
+local io_stdin = io.stdin
+local string_format = string.format
+local string_sub = string.sub
+local os_getenv = os.getenv
+local os_exit = os.exit
+
+
+local progname = LUA_PROGNAME
+
+-- Use external functions, if available
+local lua_stdin_is_tty = function() return true end
+local setsignal = function() end
+
+local function print_usage()
+  io_stderr:write(string_format(
+  "usage: %s [options] [script [args]].\n" ..
+  "Available options are:\n" ..
+  "  -e stat  execute string " .. LUA_QL("stat") .. "\n" ..
+  "  -l name  require library " .. LUA_QL("name") .. "\n" ..
+  "  -i       enter interactive mode after executing " ..
+              LUA_QL("script") .. "\n" ..
+  "  -v       show version information\n" ..
+  "  --       stop handling options\n" ..
+  "  -        execute stdin and stop handling options\n"
+  ,
+  progname))
+  io_stderr:flush()
+end
+
+local function l_message (pname, msg)
+  if pname then io_stderr:write(string_format("%s: ", pname)) end
+  io_stderr:write(string_format("%s\n", msg))
+  io_stderr:flush()
+end
+
+local function report(status, msg)
+  if not status and msg ~= nil then
+    msg = (type(msg) == 'string' or type(msg) == 'number') and tostring(msg)
+          or "(error object is not a string)"
+    l_message(progname, msg);
+  end
+  return status
+end
+
+local function tuple(...)
+  return {n=select('#', ...), ...}
+end
+
+local function traceback (message)
+  local tp = type(message)
+  if tp ~= "string" and tp ~= "number" then return message end
+  local debug = _G.debug
+  if type(debug) ~= "table" then return message end
+  local tb = debug.traceback
+  if type(tb) ~= "function" then return message end
+  return tb(message, 2)
+end
+
+local function docall(f, ...)
+  local tp = {...}  -- no need in tuple (string arguments only)
+  local F = function() return f(unpack(tp)) end
+  setsignal(true)
+  local result = tuple(xpcall(F, traceback))
+  setsignal(false)
+  -- force a complete garbage collection in case of errors
+  if not result[1] then collectgarbage("collect") end
+  return unpack(result, 1, result.n)
+end
+
+local function dofile(name)
+  local f, msg = loadfile(name)
+  if f then f, msg = docall(f) end
+  return report(f, msg)
+end
+
+local function dostring(s, name)
+  local f, msg = loadstring(s, name)
+  if f then f, msg = docall(f) end
+  return report(f, msg)
+end
+
+local function dolibrary (name)
+  return report(docall(_G.require, name))
+end
+
+local function print_version()
+  l_message(nil, LUA_RELEASE .. "  " .. LUA_COPYRIGHT)
+end
+
+local function getargs (argv, n)
+  local arg = {}
+  for i=1,#argv do arg[i - n] = argv[i] end
+  if _G.arg then
+    local i = 0
+    while _G.arg[i] do
+      arg[i - n] = _G.arg[i]
+      i = i - 1
+    end
+  end
+  return arg
+end
+
+--FIX? readline support
+local history = {}
+local function saveline(s)
+--  if #s > 0 then
+--    history[#history+1] = s
+--  end
+end
+
+
+local function get_prompt (firstline)
+  -- use rawget to play fine with require 'strict'
+  local pmt = rawget(_G, firstline and "_PROMPT" or "_PROMPT2")
+  local tp = type(pmt)
+  if tp == "string" or tp == "number" then
+    return tostring(pmt)
+  end
+  return firstline and LUA_PROMPT or LUA_PROMPT2
+end
+
+
+local function incomplete (msg)
+  if msg then
+    local ender = LUA_QL("<eof>")
+    if string_sub(msg, -#ender) == ender then
+      return true
+    end
+  end
+  return false
+end
+
+
+local function pushline (firstline)
+  local prmt = get_prompt(firstline)
+  io_stdout:write(prmt)
+  io_stdout:flush()
+  local b = io_stdin:read'*l'
+  if not b then return end -- no input
+  if firstline and string_sub(b, 1, 1) == '=' then
+    return "return " .. string_sub(b, 2)  -- change '=' to `return'
+  else
+    return b
+  end
+end
+
+
+local function loadline ()
+  local b = pushline(true)
+  if not b then return -1 end  -- no input
+  local f, msg
+  while true do  -- repeat until gets a complete line
+    f, msg = loadstring(b, "=stdin")
+    if not incomplete(msg) then break end  -- cannot try to add lines?
+    local b2 = pushline(false)
+    if not b2 then -- no more input?
+      return -1
+    end
+    b = b .. "\n" .. b2 -- join them
+  end
+
+  saveline(b)
+
+  return f, msg
+end
+
+
+local function dotty ()
+  local oldprogname = progname
+  progname = nil
+  while true do
+    local result
+    local status, msg = loadline()
+    if status == -1 then break end
+    if status then
+      result = tuple(docall(status))
+      status, msg = result[1], result[2]
+    end
+    report(status, msg)
+    if status and result.n > 1 then  -- any result to print?
+      status, msg = pcall(_G.print, unpack(result, 2, result.n))
+      if not status then
+        l_message(progname, string_format(
+            "error calling %s (%s)",
+            LUA_QL("print"), msg))
+      end
+    end
+  end
+  io_stdout:write"\n"
+  io_stdout:flush()
+  progname = oldprogname
+end
+
+
+local function handle_script(argv, n)
+  _G.arg = getargs(argv, n)  -- collect arguments
+  local fname = argv[n]
+  if fname == "-" and argv[n-1] ~= "--" then
+    fname = nil  -- stdin
+  end
+  local status, msg = loadfile(fname)
+  if status then
+    status, msg = docall(status, unpack(_G.arg))
+  end
+  return report(status, msg)
+end
+
+
+local function collectargs (argv, p)
+  local i = 1
+  while i <= #argv do
+    if string_sub(argv[i], 1, 1) ~= '-' then  -- not an option?
+      return i
+    end
+    local prefix = string_sub(argv[i], 1, 2)
+    if prefix == '--' then
+      if #argv[i] > 2 then return -1 end
+      return argv[i+1] and i+1 or 0
+    elseif prefix == '-' then
+      return i
+    elseif prefix == '-i' then
+      if #argv[i] > 2 then return -1 end
+      p.i = true
+      p.v = true
+    elseif prefix == '-v' then
+      if #argv[i] > 2 then return -1 end
+      p.v = true
+    elseif prefix == '-e' then
+      p.e = true
+      if #argv[i] == 2 then
+        i = i + 1
+        if argv[i] == nil then return -1 end
+      end
+    elseif prefix == '-l' then
+      if #argv[i] == 2 then
+        i = i + 1
+        if argv[i] == nil then return -1 end
+      end
+    else
+      return -1  -- invalid option
+    end
+    i = i + 1
+  end
+  return 0
+end
+
+
+local function runargs(argv, n)
+  local i = 1
+  while i <= n do if argv[i] then
+    assert(string_sub(argv[i], 1, 1) == '-')
+    local c = string_sub(argv[i], 2, 2) -- option
+    if c == 'e' then
+      local chunk = string_sub(argv[i], 3)
+      if chunk == '' then i = i + 1; chunk = argv[i] end
+      assert(chunk)
+      if not dostring(chunk, "=(command line)") then return false end
+    elseif c == 'l' then
+      local filename = string_sub(argv[i], 3)
+      if filename == '' then i = i + 1; filename = argv[i] end
+      assert(filename)
+      if not dolibrary(filename) then return false end
+    end
+    i = i + 1
+  end end
+  return true
+end
+
+
+local function handle_luainit()
+  local init = os_getenv(LUA_INIT)
+  if init == nil then
+    return  -- status OK
+  elseif string_sub(init, 1, 1) == '@' then
+    dofile(string_sub(init, 2))
+  else
+    dostring(init, "=" .. LUA_INIT)
+  end
+end
+
+
+local import = _G.import
+if import then
+  lua_stdin_is_tty = import.lua_stdin_is_tty or lua_stdin_is_tty
+  setsignal        = import.setsignal or setsignal
+  LUA_RELEASE      = import.LUA_RELEASE or LUA_RELEASE
+  LUA_COPYRIGHT    = import.LUA_COPYRIGHT or LUA_COPYRIGHT
+  _G.import = nil
+end
+
+if _G.arg and _G.arg[0] and #_G.arg[0] > 0 then progname = _G.arg[0] end
+local argv = {...}
+handle_luainit()
+local has = {i=false, v=false, e=false}
+local script = collectargs(argv, has)
+if script < 0 then -- invalid args?
+  print_usage()
+  os_exit(1)
+end
+if has.v then print_version() end
+local status = runargs(argv, (script > 0) and script-1 or #argv)
+if not status then os_exit(1) end
+if script ~= 0 then
+  status = handle_script(argv, script)
+  if not status then os_exit(1) end
+else
+  _G.arg = nil
+end
+if has.i then
+  dotty()
+elseif script == 0 and not has.e and not has.v then
+  if lua_stdin_is_tty() then
+    print_version()
+    dotty()
+  else dofile(nil)  -- executes stdin as a file
+  end
+end
+
diff --git a/LuaSL/testLua/yueliang-0.4.1/COPYRIGHT b/LuaSL/testLua/yueliang-0.4.1/COPYRIGHT
new file mode 100644
index 0000000..0290bff
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/COPYRIGHT
@@ -0,0 +1,39 @@
+Yueliang License
+----------------
+
+Yueliang is licensed under the terms of the MIT license reproduced
+below. This means that Yueliang is free software and can be used
+for both academic and commercial purposes at absolutely no cost.
+
+Yueliang is based on Lua 5 code. See COPYRIGHT_Lua5 (Lua 5.0.3) and
+COPYRIGHT_Lua51 (Lua 5.1.3) for Lua 5 license information.
+
+For details and rationale, see http://www.lua.org/license.html .
+
+===============================================================================
+
+Yueliang Copyright (C) 2005-2008 Kein-Hong Man <khman@users.sf.net>
+Lua 5.0.3 Copyright (C) 2003-2006 Tecgraf, PUC-Rio.
+Lua 5.1.3 Copyright (C) 1994-2008 Lua.org, PUC-Rio.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+===============================================================================
+
+(end of COPYRIGHT)
diff --git a/LuaSL/testLua/yueliang-0.4.1/COPYRIGHT_Lua5 b/LuaSL/testLua/yueliang-0.4.1/COPYRIGHT_Lua5
new file mode 100644
index 0000000..2cd57d3
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/COPYRIGHT_Lua5
@@ -0,0 +1,34 @@
+Lua License
+-----------
+
+Lua is licensed under the terms of the MIT license reproduced below.
+This means that Lua is free software and can be used for both academic
+and commercial purposes at absolutely no cost.
+
+For details and rationale, see http://www.lua.org/license.html .
+
+===============================================================================
+
+Copyright (C) 2003-2006 Tecgraf, PUC-Rio.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+===============================================================================
+
+(end of COPYRIGHT)
diff --git a/LuaSL/testLua/yueliang-0.4.1/COPYRIGHT_Lua51 b/LuaSL/testLua/yueliang-0.4.1/COPYRIGHT_Lua51
new file mode 100644
index 0000000..3a53e74
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/COPYRIGHT_Lua51
@@ -0,0 +1,34 @@
+Lua License
+-----------
+
+Lua is licensed under the terms of the MIT license reproduced below.
+This means that Lua is free software and can be used for both academic
+and commercial purposes at absolutely no cost.
+
+For details and rationale, see http://www.lua.org/license.html .
+
+===============================================================================
+
+Copyright (C) 1994-2008 Lua.org, PUC-Rio.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+===============================================================================
+
+(end of COPYRIGHT)
diff --git a/LuaSL/testLua/yueliang-0.4.1/Changelog b/LuaSL/testLua/yueliang-0.4.1/Changelog
new file mode 100644
index 0000000..60faa5e
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/Changelog
@@ -0,0 +1,680 @@
+yueliang changelog
+------------------
+
+2008-05-31  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.0.3/README: updated notes
+        * nat-5.1.3/README: updated notes
+        * Manifest: updated
+        * README: updated
+        * Version: 0.4.1
+
+2008-05-31  Kein-Hong Man  <khman@users.sf.net>
+
+        * test/test_lparser_mk3_2.lua: added better parser tester that
+        covers whole grammar, all tests passes
+        * test/test_lparser_mk3_2.lua: added better parser tester that
+        covers whole grammar, all tests passes
+        * nat-5.0.3/test/bench_llex_mk2.lua, nat-5.0.3/test/bench_llex_mk3.lua,
+        nat-5.0.3/test/bench_llex_mk4.lua, nat-5.0.3/test/test_lzio_mk2.lua,
+        nat-5.0.3/test/test_lparser_mk3.lua, nat-5.0.3/test/test_lparser_mk3b.lua,
+        nat-5.0.3/test/test_llex_mk2.lua, nat-5.0.3/test/test_llex_mk3.lua,
+        nat-5.0.3/test/test_llex_mk4.lua:
+        adjusted require() call to loose .lua extension, better?
+        * nat-5.0.3/README: updated info
+        * orig-5.0.3/test/test_ldump.lua, orig-5.0.3/test/test_llex.lua,
+        orig-5.0.3/test/bench_llex.lua, orig-5.0.3/test/test_lparser.lua,
+        orig-5.0.3/test/test_number.lua, orig-5.0.3/test/test_lparser2.lua,
+        orig-5.0.3/test/test_lzio.lua, test_lua/test_scripts-5.0.lua:
+        adjusted require() call to loose .lua extension, better?
+        * orig-5.0.3/test/test_llex.lua: fixed minor change in test case
+        output, probably something changed between 5.0.2 and 5.0.3
+        * nat-5.1.3/test/test_lparser_mk2_2.lua: added better parser tester
+        that covers whole grammar, all tests passes
+
+2008-05-29  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.1.3/lparser_mk2.lua: bug, binopr_* missing '%' operator
+
+2008-05-28  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.1.3/lparser_mk2.lua: bug, unopr[] missing '#' operator
+
+2008-05-23  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.3/test/test_llex.lua: removed duplicate test entry
+        * orig-5.1.3/test/test_llex.lua: removed duplicate test entry
+        * nat-5.0.3/test/test_llex_mk2.lua: removed duplicate test entry
+        * nat-5.0.3/test/test_llex_mk3.lua: removed duplicate test entry
+        * nat-5.0.3/test/test_llex_mk4.lua: removed duplicate test entry
+        * nat-5.1.3/test/test_llex_mk2.lua: removed duplicate test entry
+
+2008-05-22  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.1.3/lparser_mk2.lua: finish debugging, all test sample
+        appear to work
+        * nat-5.1.3/test/test_lparser_mk2.lua: added test script, works
+        * nat-5.1.3/test/parser_log/sample_*.lua: added parser output
+        log message samples
+        * nat-5.1.3/README: updated notes
+        * Manifest: updated
+        * README: updated
+        * OlderNews: updated
+        * Version: 0.4.0
+
+2008-05-22  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.1.3/lparser_mk2.lua (init): mistake in naming llex.llex
+        * nat-5.1.3/lparser_mk2.lua (str_checkname): forgot to remove
+        original C parameter 'ls' in call to check()
+        * nat-5.1.3/lparser_mk2.lua (constructor): missed name change
+        from luaX to llex
+        * nat-5.1.3/lparser_mk2.lua: added a local _G for *_stat lookups
+        * nat-5.1.3/lparser_mk2.lua (test_then_block): v parm not needed
+        * nat-5.1.3/lparser_mk2.lua (cond): v parm not needed, added
+        a local v creation before calling expr() in body, removed not
+        needed v creation in functions that call cond()
+        * nat-5.1.3/lparser_mk2.lua (simpleexp): check_condition() for
+        fs.is_vararg, wrong sense
+        * nat-5.1.3/lparser_mk2.lua: reset top_fs each time initialized;
+        added forward references for local functions
+
+2008-05-20  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.1.3/lparser_mk2.lua: new file, bits and pieces for
+        native 5.1.x parser, ongoing
+        * nat-5.1.3/lparser_mk2.lua: completed initial coding,
+        untested
+
+2008-05-20  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.0.3/README: updated with caveats about line ending
+        normalization in strings and long strings
+        * nat-5.1.3/README: updated notes
+        * README: updated
+        * Version: 0.3.2
+
+2008-05-20  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.1.3/test/test_llex_mk2.lua: native 5.1.x lexer tester
+        * nat-5.1.3/test/test_llex_mk2.lua: deleted deprecated tests
+        * nat-5.1.3/llex_mk2.lua: adjusted require call
+        * nat-5.1.3/llex_mk2.lua: made sourceid handling more robust
+        * nat-5.1.3/llex_mk2.lua (llex): mistake in porting code from
+        5.0.x native lexer -- variable kept as q when it was renamed p
+        * nat-5.1.3/llex_mk2.lua (read_long_string): missing reassign
+        main value I of lexing position for ']' negative test
+        * nat-5.1.3/llex_mk2.lua (read_long_string): missing add string
+        segment to buffer for ']' negative test
+        * nat-5.1.3/llex_mk2.lua (read_string): fixed \xxx sequence
+        conversion from number to string, forgot how old code worked
+        * nat-5.1.3/llex_mk2.lua: works
+        * nat-5.1.3/test/test_llex_mk2.lua: all tests run
+        * nat-5.1.3/README: updated
+
+2008-05-19  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.1.3/: created for 5.1.x lexer/parser work
+        * nat-5.1.3/test: created for test scripts
+        * nat-5.1.3/llex_mk2.lua: preliminary native lexer for Lua 5.1.x
+        complete (except for next() and lookahead()), untested
+        * nat-5.1.3/README: added
+
+2008-05-19  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.3/lparser.lua: added comments for calls
+        * nat-5.0.3/lparser_mk3b.lua: new native parser, same as
+        lparser_mk3.lua except with variable management code added
+        * nat-5.0.3/test/test_lparser_mk3b.lua: new test script,
+        started testing variable management code
+        * nat-5.0.3/lparser_mk3b.lua (luaY:new_localvar, luaY:searchvar):
+        fixed var lookup bug due to fs.bl=nil at function top level
+        * nat-5.0.3/lparser_mk3b.lua (luaY:singlevaraux): fixed bug due
+        to wrong name used, 'v' instead of the correct 'var'
+        * nat-5.0.3/lparser_mk3b.lua: fixed extra 'ls' parms that ought
+        to be removed, when adding code to manage variables; copied from
+        lparser.lua without thinking
+        * nat-5.0.3/test/parser_log/sample_b_*.lua: added log samples
+        * nat-5.0.3/README: updated
+        * Manifest: updated for parser log samples
+        * README: updated
+        * OlderNews: updated
+        * Version: 0.3.1
+
+2008-04-13  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.0.3/test/parser_log/: new subdirectory for log samples
+        * nat-5.0.3/test/parser_log/sample_*.lua: added log samples
+        * nat-5.0.3/README: updated
+        * Manifest: updated for parser log samples
+        * test_lua/files-yueliang-5.1.txt: updated directory name change
+        * README: updated
+        * Version: 0.3.0
+
+2008-04-13  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.0.3/test/test_lparser_mk3.lua: if_stat tests,
+        return_stat tests, while_stat tests, repeat_stat tests
+        * nat-5.0.3/lparser_mk3.lua: logging for if_stat,
+        return_stat, while_stat, repeat_stat, and comment tweaks
+        * nat-5.0.3/test/test_lparser_mk3.lua: tests for break_stat,
+        for_stat, local_stat, function_stat, anonymous functions,
+        table constructors
+        * nat-5.0.3/lparser_mk3.lua: logging written for break_stat,
+        for_stat, local_stat, function_stat, anonymous functions,
+        table constructors
+        * nat-5.0.3/lparser_mk3.lua (luaY:localfunc): missing struct b
+        * nat-5.0.3/lparser_mk3.lua: everything seems to work
+
+2008-04-12  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.0.3/test/test_lparser_mk3.lua: basic expr tests
+        * nat-5.0.3/lparser_mk3.lua: logging for expressions mostly
+        done, fixed bugs in luaY:subexpr caused by simplification of
+        orig-5.0.3 sources, seems okay now
+        * nat-5.0.3/README: updated
+        * Manifest: updated
+        * README: updated
+        * Version: 0.2.4
+
+2008-04-12  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.0.3/test/test_lparser_mk3.lua: added log message
+        dumper function, added test script exerciser
+        * nat-5.0.3/lparser_mk3.lua (luaY:open_func): tweaked to
+        allow early logging
+        * nat-5.0.3/lparser_mk3.lua: added some logging messages
+        * nat-5.0.3/test/test_lparser_mk3.lua: added output indenter
+        * nat-5.0.3/lparser_mk3.lua (luaY:syntaxerror): bug, ref
+        to self.tok when it should be tok
+        * nat-5.0.3/lparser_mk3.lua: more logging messages, tests
+
+2008-04-12  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.0.3/lparser_mk3.lua: removed old attempt at
+        writing a native parser skeleton
+        * nat-5.0.3/lparser_mk3.lua: added preliminary new
+        native 5.0.3 parser skeleton
+        * nat-5.0.3/test/test_lparser_mk3.lua: renamed from
+        test_lparser.lua to match mk numbering
+        * nat-5.0.3/lparser_mk3.lua (luaY:next): missing 'end'
+        * nat-5.0.3/test/test_lparser_mk3.lua: runs, no die
+
+2008-04-10  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.0.3/test/test_lparser.lua: new, preliminary native
+        parser test code
+        * nat-5.0.3/lparser_mk3.lua: fixed regex for binary
+        operator priority string
+        * nat-5.0.3/lparser_mk3.lua: renamed variable clash
+        with function peek -> peek_tok, added missing init
+        * nat-5.0.3/lparser_mk3.lua: function name clash,
+        one changed to localstat -> localdeclstat
+        * nat-5.0.3/test/test_lparser.lua: passed simple string
+        * nat-5.0.3/test/sample.lua: added test file
+        * nat-5.0.3/test/test_lparser.lua: added longer test, fail
+        * nat-5.0.3/lparser_mk3.lua (luaY:subexpr): inconsistent
+        call parameters, might prefer to rewrite whole thing
+
+2008-04-09  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.1.2/lcode.lua (luaK:prefix): 5.1.3 fix
+        * orig-5.1.2/lparser.lua (luaY:assignment): 5.1.3 fix
+        * orig-5.1.3: renamed from orig-5.1.2, updated names
+        * orig-5.1.3/README: updated
+        * COPYRIGHT, COPYRIGHT_Lua51: updated year
+        * README: updated
+        * Version: 0.2.3
+
+2007-11-21  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.1.1/lparser.lua (luaY:listfield): 5.1.2 fixes
+        * orig-5.1.1/lcode.lua (luaK:infix, luaK:codearith,
+        luaK:_nil): 5.1.2 fixes
+        * orig-5.1.2: renamed from orig-5.1.1, updated names
+        * COPYRIGHT, COPYRIGHT_Lua51: updated
+        * README: updated
+        * test_lua/files-*, README: directory name adjustment
+        * test_lua/5.0, 5.1: renamed from 5.0.3, 5.1.1
+        * test_lua: renamed files, adjusted directory references
+        * Version: 0.2.2
+
+2006-11-28  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.3/test/test_lparser2.lua: added option to dump
+        all error messages for failure cases, to check whether test
+        cases trip the parser where intended
+        * orig-5.1.1/test/test_lparser2.lua: ditto
+
+2006-11-27  Kein-Hong Man  <khman@users.sf.net>
+
+        * test_lua/README: updated
+        * orig-5.0.3/README: updated
+        * orig-5.1.1/README: updated
+        * Manifest: updated
+        * README: updated
+        * COPYRIGHT: updated version number
+        * Version: 0.2.1
+
+2006-11-27  Kein-Hong Man  <khman@users.sf.net>
+
+        * test_lua/test_parser-5.1.lua: parser test case file
+        for Lua 5.1.x
+        * orig-5.1.1/test/test_lparser2.lua: added a parser tester
+        for the 5.1.1 front end, fixed one bug, 524 tests passed
+        * orig-5.1.1/lparser.lua (luaY:simpleexp): fixed test
+        on fs.f.is_vararg, numerical not boolean
+
+2006-11-27  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.0.3/lparser_mk3.lua: updated expression type
+        information passing, needed to detect VCALLs
+        * test_lua/test_parser-5.0.lua: preliminary parser test
+        case file for Lua 5.0.x
+        * test_lua/test_parser-5.0.lua: fixed use of [==[!
+        * test_lua/test_parser-5.0.lua: updated test cases after
+        verifying with native Lua
+        * orig-5.0.3/test/test_lparser2.lua: added a parser tester
+        for the 5.0.3 front end, 503 tests passed
+        * nat-5.0.3/README: updated with info on lparser_mk3.lua
+
+2006-11-23  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.3/lparser.lua: fixed comment typo
+        * orig-5.1.1/lparser.lua: fixed comment typo
+        * nat-5.0.3/lparser_mk3.lua: preliminary parser skeleton
+
+2006-11-22  Kein-Hong Man  <khman@users.sf.net>
+
+        * test_lua/README: updated with test status
+        * test_lua/files-yueliang-5.0.3.txt: updated filenames
+        * test_lua/files-yueliang-5.1.1.txt: added for 5.1.1
+        * test_lua/files-lua-5.1.1.txt: added for 5.1.1
+        * test_lua/files-other-5.1.1.txt: added for 5.1.1
+        * test_lua/test_scripts: to accomodate 5.1.1 material,
+        renamed to test_lua/test_scripts-5.0.3.lua
+        * test_lua/test_scripts-5.1.1.lua: added, after debugging,
+        all files compiled successfully
+        * Manifest: updated
+        * README: updated
+        * Version: 0.2.0
+
+2006-11-22  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.1.1/lparser.lua (luaY:parlist): missing 'self',
+        (luaY:test_then_block): missing 'self',
+        (luaY:yindex) check should be checknext,
+        (luaY:adjustlocalvars) nvars should be loop index i
+        * orig-5.1.1/lcode.lua (luaK:addk): redo fs.h[] code,
+        (luaK:nilK) forgot to change from old name nil_constant
+        (luaK:posfix) copyexp() added to copy expdesc structs
+        (luaK:patchlistaux) incorrectly placed loop iterator
+        * orig-5.1.1/lparser.lua:
+        (luaY:breakstat) luaK:concat returns a value!
+        (luaY:new_localvarliteral) forgot to correct parameter
+        (luaY:ifstat) luaK:concat returns a value!
+        (luaY:whilestat) typo, "whileint"
+        (luaY:simpleexp) missing 'self' for VARARG_NEEDSARG
+        (luaY:repeatstat) type, "zself"
+        (luaY:repeatstat) failed to clear away old code
+        * orig-5.1.1/lcode.lua: (luaK:constfolding): missing 'self'
+        (luaK:isnumeral) incorrect type of NO_JUMP
+        (luaK:need_value) missing interator converting for loop
+        * orig-5.1.1/llex.lua (luaX:next): must be copy-by-value
+        (luaK:patchtestreg) cannot replace an inst table
+        * orig-5.1.1/ldump.lua (luaU:DumpConstants): typo for
+        constant name, LUA_BOOLEAN -> LUA_TBOOLEAN
+
+2006-11-22  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.1.1/test/bench_llex.lua: added performance
+        tester for Lua 5.1.1 lexer
+        * orig-5.1.1/README: added preliminary performance data
+        * orig-5.1.1/lparser.lua: debugging,
+        (luaY:checklimit) missing 'end'
+        (luaY:repeatstat) extra 'end'
+        (luaY:parser) added nCcalls initialization for LuaState
+        (luaY:exprstat) should be luaK:getcode
+        * orig-5.1.1/llex.lua: debugging, luaX:lex renamed to
+        luaX:llex to follow Lua 5.1.1
+        * orig-5.1.1/test/test_llex.lua: luaX:lex -> luaX:llex
+        * orig-5.1.1/test/bench_llex.lua: luaX:lex -> luaX:llex
+        * orig-5.1.1/lcode.lua: debugging,
+        (luaK:addK) adjusted value storage, removed setnvalue call
+        (luaK:codeABC) luaP instead of self, 2 cases
+        * orig-5.1.1/lopcodes.lua: fixed string parameter type for
+        instruction information lookup functions,
+        (luaP:ISK) fixed MSB bit testing to denote constants
+        (luaP:Instruction) fixed instruction encoding into bytes
+
+2006-11-21  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.3/lcode.lua: noted failed assert, adjusted
+        names of set*value lobject.h macros
+        * README: noted two cases needing following up: a failed
+        assert (see above) and a missing luaG_checkcode()
+        * orig-5.1.1/lopcodes.lua: added luaP:CREATE_Inst(c) for
+        luaK:setlist, implementation of OP_SETLIST
+        * orig-5.1.1/lcode.lua: added preliminary ported file
+
+2006-11-21  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.1.1/lparser.lua: added preliminary ported file
+        * orig-5.1.1/lparser.lua: fixed syntax porting bugs (3):
+        (luaY:hasmultret): || changed to or in return statement
+        (luaY:indexupvalue): || changed to or in assert statement
+        (luaY:singlevaraux): missing return before return value
+
+2006-11-17  Kein-Hong Man  <khman@users.sf.net>
+
+        * Manifest: updated
+        * README: updated
+        * Version: 0.1.4
+
+2006-11-17  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.1.1/ldump.lua: removed string.len in 2 places
+        * orig-5.0.3/lopcodes.lua: (luaP:DecodeInst) comments
+        adjusted, a regexp changed elsewhere
+        * orig-5.1.1/ldump.lua: fixed porting bug (function name)
+        * orig-5.1.1/test/test_ldump.lua: tested binary dumper
+        * orig-5.1.1/test/test_llex.lua: tested lexer, developed
+        new test cases to cover changes in Lua 5.1.x
+        * orig-5.1.1/llex.lua: fixed bugs in lexer in order to
+        run test cases successfully
+        (luaX:token2str) variable c should be token
+        (luaX:lexerror) incorrect call to luaX:chunkid
+        (luaX:read_numeral) scanning bug, %w captures EOZ too
+        (luaX:read_long_string) LUA_COMPAT_LSTR is in self
+        (luaX:lex) incorrect variable used in keyword lookup
+        * orig-5.0.3/lopcodes.lua: changed a gfind to gmatch
+        * test_llex*.lua: some tweaks to printout statement
+
+2006-11-17  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.1.1/ldump.lua: added binary chunk dumper
+        * orig-5.1.1/README: added preliminary information
+        * orig-5.1.1/test/test_lzio.lua: tested chunk reader
+        * orig-5.1.1/test/test_number.lua: tested number conversion
+        * test_number.lua: added FLT_MIN, FLT_MAX test values for
+        completeness, in case conversion to float is needed
+
+2006-11-16  Kein-Hong Man  <khman@users.sf.net>
+
+        * test_lua/5.0.2: directory renamed to test_lua/5.0.3
+        * test_lua: front end test script and associated files
+        updated for 5.0.3
+        * orig-5.0.2: directory renamed to orig-5.0.3, some
+        references to 5.0.2 changed
+        * nat-5.0.2: directory renamed to nat-5.0.3, some
+        references to 5.0.2 changed
+        * orig-5.1: directory renamed to orig-5.1.1, some
+        references to 5.1 changed
+
+2006-11-16  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/lcode.lua: updating to Lua 5.0.3, this is the
+        only front end file in orig-5.0.2 that has changed;
+        (luaK:need_value): body changed
+        (luaK:removevalues): new function, used in luaK:codenot
+        (luaK:patchlistaux): definition and body changed
+        (luaK:dischargejpc): body changed (due to luaK:patchlistaux)
+        (luaK:patchlist): body changed (due to luaK:patchlistaux)
+        (luaK:exp2reg): body changed (due to luaK:patchlistaux)
+        (luaK:jumponcond): body changed
+        (luaK:codenot): body changed (added luaK:removevalues)
+
+2006-11-16  Kein-Hong Man  <khman@users.sf.net>
+
+        * test_lua: moved 5.0.2 sample scripts to its own directory
+        * test_lua/test_scripts.lua: adjusted file paths of sample
+        files used for parser testing
+        * test_lua/test_scripts.lua: changed file list specification
+        to load several separate files for better flexibility and
+        easier maintenance
+        * test_lua/files-lua-5.0.2.txt: added sample file list
+        * test_lua/files-other-5.0.2.txt: added sample file list
+        * test_lua/files-yueliang-5.0.2.txt: added sample file list
+        * test_lua/README: updated
+        * Manifest: updated
+
+2006-11-13  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/lcode.lua: added function comments
+
+2006-11-13  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/test/bench_llex.lua: simple lexer benchmark
+        * nat-5.0.2/test/bench_llex_mk2.lua: adapted for mk2 lexer
+        * nat-5.0.2/test/bench_llex_mk3.lua: adapted for mk3 lexer
+        * nat-5.0.2/test/bench_llex_mk4.lua: adapted for mk4 lexer
+        * nat-5.0.2/README: added lexer benchmark results
+
+2006-11-11  Kein-Hong Man  <khman@users.sf.net>
+
+        * Manifest: updated
+        * README: updated
+        * Version: 0.1.3
+
+2006-11-11  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.0.2/llex_mk3.lua: further size optimization work on
+        new lexer, down to 3286 bytes (stripped)
+        * nat-5.0.2/llex_mk3.lua: fixed bug in short comment handling
+        * nat-5.0.2/README: added information for native lexers
+        * nat-5.0.2/llex_mk4.lua: line-based native lexer, see size
+        performance data in README
+        * nat-5.0.2/lzio_mk4.lua: line-based stream reader function
+        * nat-5.0.2/test/test_llex_mk4.lua: adapted version of test
+        cases, all tests passed
+
+2006-11-10  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/lparser.lua: added comments for parser
+        functions, one or more visual tweaks, no code changes
+
+2006-11-09  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.0.2/llex_mk3.lua: new minimal size lexer, but takes
+        in all the source code at once, 3346 bytes (stripped)
+        * nat-5.0.2/test/test_llex_mk3.lua: adapted version of test
+        cases, all tests passed
+
+2006-11-08  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.0.2/lzio_mk2.lua: renamed from lzio.lua
+        * nat-5.0.2/test/test_lzio_mk2.lua: renamed from test_lzio.lua
+        * nat-5.0.2/llex_mk2.lua: renamed from llex.lua
+        * nat-5.0.2/test/test_llex_mk2.lua: renamed from test_llex.lua
+
+2006-03-27  Kein-Hong Man  <khman@users.sf.net>
+
+        * nat-5.0.2/llex.lua: optimizations to reduce file size,
+        size down to 4003 bytes (stripped) from 4155 bytes
+
+2006-03-27  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.1: lzio.lua: minor formatting change
+        * orig-5.0.2/test/test_llex.lua: fix filename spec
+        * nat-5.0.2/lzio.lua: new simplified 'native' version
+        * nat-5.0.2/test/test_lzio.lua: test for the above
+        * nat-5.0.2/llex.lua: new simplified 'native' version
+        * nat-5.0.2/test/test_llex.lua: test for the above
+
+2006-03-25  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/llex.lua: typo fix
+        * orig-5.1/llex.lua: Lua 5.1 lexer
+        * Manifest: updated
+
+2006-03-23  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/tools/call_graph.lua: added display of contents
+        of expdesc structures
+
+2006-03-23  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.1: new directory for 5.1 front-end
+        * orig-5.1/lzio.lua: Lua 5.1 input stream reader
+        * COPYRIGHT: updated with Lua 5.1 information
+        * COPYRIGHT_Lua51: added for Lua 5.1
+        * Manifest: updated
+        * orig-5.0.2/lzio.lua: updated comments
+        * orig-5.1/lzio.lua (luaZ:fill): fixed porting bug
+
+2005-05-04  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/tools/sample_expr.lua: a Lua-style expression
+        parsing interactive demonstrator
+        * orig-5.0.2/tools/sample_expr.lua: fixed parsing bugs,
+        (1) unop subexpr, (2) assign to op before testing for binop
+        * orig-5.0.2/lparser.lua: fixed some comments which have
+        incorrect description of Lua syntax
+
+2005-04-18  Kein-Hong Man  <khman@users.sf.net>
+
+        * Version: 0.1.2
+
+2005-04-17  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/lparser.lua: added descriptive comments for some
+        expression parsing functions
+        * orig-5.0.2/test/test_number.lua: test cases for number
+        conversion functions in ldump.lua
+        * test_lua/test_scripts.lua: updated with some new test entries
+        * orig-5.0.2/ldump.lua (luaU:from_double): added support for
+        +/- infinity
+
+2005-04-14  Kein-Hong Man  <khman@users.sf.net>
+
+        * moved project to a Subversion repository
+
+2005-03-24  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/lopcodes.lua: added luaP:DecodeInst to decode
+        instruction from a 4-char string
+        * orig-5.0.2/lopcodes.lua (getOpMode, testOpMode): add 'self.'
+
+2005-03-22  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/tools/call_graph.lua: added comments, check for
+        namespace collision when selecting new name for orig function
+        * test_lua/test_scripts.lua: added comments, some test files
+
+2005-03-21  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/tools/call_graph.lua: added allow/deny of specific
+        functions, display of return values
+        * orig-5.0.2/tools/calls.log: sample output
+        * Version: 0.1.1
+
+2005-03-20  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/tools/call_graph.lua: added script to generate
+        a call graph from selected modules
+
+2005-03-19  Kein-Hong Man  <khman@users.sf.net>
+
+        * README: added some size statistics for comparison
+        * test_lua/README: updated description
+        * orig-5.0.2/README: added notes
+        * orig-5.0.2/lzio.lua: fixed bug when calling zgetc after
+        EOF for a file chunk reader (Thanks to Adam429)
+        * orig-5.0.2/test/test_lzio.lua: added manual test for above
+
+2005-03-17  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/lparser.lua (indexupvalue): struct expdesc copy
+        * orig-5.0.2/luac.lua: simple luac; can compile luac.lua
+        * orig-5.0.2/lparser.lua (assignment, constructor): missing
+        'self:'
+        * test_lua: added sample Lua scripts from Lua 5.0.2
+        * test_lua/README: add source attribution for example scripts
+        * orig-5.0.2/lcode.lua (arith_opc): typo OP_MULT -> OP_MUL
+        * orig-5.0.2/ldump.lua (DumpString): fixed handling for ""
+        * orig-5.0.2/ldump.lua (DumpFunction): fixed f.source handling
+        * orig-5.0.2/lcode.lua (jump, codebinop): 'luaK:' -> 'self:'
+        * orig-5.0.2/lcode.lua (need_value, exp2reg): comparison of
+        boolean cond with 0/1 C field, changed back to all 0/1
+        * orig-5.0.2/lzio.lua (init): test for nil reader argument
+        * test_lua/test_scripts.lua: Lua 5.0.2 examples all compiles
+        correctly, as does Yueliang files
+        * orig-5.0.2/lzio.lua (make_getF): changed file mode to "r"
+        so that chunk reader behaves like luac for \r\n-style files
+        * test_lua/test_scripts.lua: added Lua code from LuaSrcDiet,
+        SciTELuaExporters, ChunkBake, ChunkSpy, all works
+        * README: preliminary documentation
+        * some pre-release cosmetic changes
+        * initial public release
+        * Version: 0.1.0
+
+2005-03-16  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/test/test_lparser.lua: basic parser/codegen test
+        * orig-5.0.2/lparser.lua: added FuncState.actvar = {} init
+        * orig-5.0.2/lcode.lua (ttisnumber): handle nil entries
+        * orig-5.0.2/lopcodes.lua (getOpMode): string opcode parm
+        * orig-5.0.2/lcode.lua (exp2reg): missing 'self:' prefixes
+        * orig-5.0.2/lopcodes.lua (CREATE_ABC, CREATE_ABx): convert
+        string opcode representation to number when storing in field OP
+        * orig-5.0.2/lcode.lua (setsvalue, setnvalue, sethvalue):
+        missing second argument cause addk to fail
+        * orig-5.0.2/lparser.lua (check_match): missing 'self:'
+        * orig-5.0.2/test/test_lparser.lua: two simple tests successful
+        * orig-5.0.2/lcode.lua (exp2val, exp2anyreg, invertjump):
+        missing 'self:'
+        * orig-5.0.2/lparser.lua (parlist, subexpr): missing 'self:'
+        * orig-5.0.2/lopcodes.lua (testOpMode): string opcode parm
+        * orig-5.0.2/lparser.lua (subexpr): convert string operator name
+        to BinOpr number when looking up binop operator priority
+        * orig-5.0.2/lparser.lua (adjustlocalvars): wrong loop index
+        * orig-5.0.2/lcode.lua (addk): fixed constant lookup
+
+2005-03-15  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/lcode.lua: completed porting (untested)
+        * orig-5.0.2/ldump.lua: completed porting (untested)
+        * orig-5.0.2/test/test_ldump.lua: added chunk writer tests
+        * orig-5.0.2/test/test_ldump.lua: basic test writing binary
+        chunk from a simple function prototype table successful
+
+2005-03-14  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/lparser.lua: updated representation of constants
+        * orig-5.0.2/lopcodes.lua: completed porting (untested)
+        * orig-5.0.2/test_lzio.lua: moved to orig-5.0.2/test subdir
+        * orig-5.0.2/test_llex.lua: moved to orig-5.0.2/test subdir
+
+2005-03-13  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/lparser.lua: completed porting (untested),
+        can't be tested without lcode/ldump
+
+2005-03-11  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/test_llex.lua: added manual test for llex.lua
+        * orig-5.0.2/llex.lua: code review; put Token parameter to
+        replace seminfo pointer in luaX:lex and related functions
+        * orig-5.0.2/llex.lua (chunkid): fixed buffer handling bug
+        * orig-5.0.2/llex.lua (read_string): escaped \n index bug
+        * orig-5.0.2/test_llex.lua: adjusted calling code to properly
+        use Token struct t in LS same as in original lparser.c calls
+        * orig-5.0.2/llex.lua (token2str): put back an assert as comment
+        * orig-5.0.2/llex.lua (readname): bug reading name up to EOZ
+        * orig-5.0.2/llex.lua (read_string): forgot c = self:next(LS)
+        * orig-5.0.2/llex.lua (readname): %w (alnum) instead of %a
+        * orig-5.0.2/llex.lua (lex): string.byte(c) for ctrl char msg
+        * orig-5.0.2/test_llex.lua: added automatic testing, all test
+        cases work after bug fixes (see above entries) to llex.lua
+        * orig-5.0.2/llex.lua: complete
+
+2005-03-10  Kein-Hong Man  <khman@users.sf.net>
+
+        * orig-5.0.2/llex.lua: completed porting
+
+2005-03-09  Kein-Hong Man  <khman@users.sf.net>
+
+        * started work on porting files (llex|lparser|lcode).(h|c)
+        * orig-5.0.2/lzio.lua: done parts needed for llex.lua, manually
+        tested with both string and file chunk readers
+        * orig-5.0.2/test_lzio.lua: created manual test
diff --git a/LuaSL/testLua/yueliang-0.4.1/Manifest b/LuaSL/testLua/yueliang-0.4.1/Manifest
new file mode 100644
index 0000000..5894dd5
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/Manifest
@@ -0,0 +1,180 @@
+Changelog
+Manifest
+README
+OlderNews
+COPYRIGHT
+COPYRIGHT_Lua5
+COPYRIGHT_Lua51
+orig-5.0.3/README
+orig-5.0.3/lzio.lua
+orig-5.0.3/ldump.lua
+orig-5.0.3/lopcodes.lua
+orig-5.0.3/llex.lua
+orig-5.0.3/lparser.lua
+orig-5.0.3/lcode.lua
+orig-5.0.3/luac.lua
+orig-5.0.3/test/test_number.lua
+orig-5.0.3/test/test_lzio.lua
+orig-5.0.3/test/test_ldump.lua
+orig-5.0.3/test/test_llex.lua
+orig-5.0.3/test/test_lparser.lua
+orig-5.0.3/test/test_lparser2.lua
+orig-5.0.3/test/sample.lua
+orig-5.0.3/test/bench_llex.lua
+orig-5.0.3/tools/call_graph.lua
+orig-5.0.3/tools/calls.log
+orig-5.0.3/tools/sample_expr.lua
+orig-5.1.3/README
+orig-5.1.3/lzio.lua
+orig-5.1.3/ldump.lua
+orig-5.1.3/lopcodes.lua
+orig-5.1.3/llex.lua
+orig-5.1.3/lparser.lua
+orig-5.1.3/lcode.lua
+orig-5.1.3/luac.lua
+orig-5.1.3/test/test_number.lua
+orig-5.1.3/test/test_lzio.lua
+orig-5.1.3/test/test_ldump.lua
+orig-5.1.3/test/test_llex.lua
+orig-5.1.3/test/bench_llex.lua
+orig-5.1.3/test/test_lparser.lua
+orig-5.1.3/test/test_lparser2.lua
+orig-5.1.3/test/sample.lua
+nat-5.0.3/README
+nat-5.0.3/lzio_mk2.lua
+nat-5.0.3/lzio_mk4.lua
+nat-5.0.3/llex_mk2.lua
+nat-5.0.3/llex_mk3.lua
+nat-5.0.3/llex_mk4.lua
+nat-5.0.3/lparser_mk3.lua
+nat-5.0.3/lparser_mk3b.lua
+nat-5.0.3/test/test_lzio_mk2.lua
+nat-5.0.3/test/test_llex_mk2.lua
+nat-5.0.3/test/test_llex_mk3.lua
+nat-5.0.3/test/test_llex_mk4.lua
+nat-5.0.3/test/bench_llex_mk2.lua
+nat-5.0.3/test/bench_llex_mk3.lua
+nat-5.0.3/test/bench_llex_mk4.lua
+nat-5.0.3/test/test_lparser_mk3.lua
+nat-5.0.3/test/test_lparser_mk3_2.lua
+nat-5.0.3/test/test_lparser_mk3b.lua
+nat-5.0.3/test/test_lparser_mk3b_2.lua
+nat-5.0.3/test/sample.lua
+nat-5.0.3/test/parser_log/sample_01.lua
+nat-5.0.3/test/parser_log/sample_02.lua
+nat-5.0.3/test/parser_log/sample_03.lua
+nat-5.0.3/test/parser_log/sample_04.lua
+nat-5.0.3/test/parser_log/sample_05.lua
+nat-5.0.3/test/parser_log/sample_06.lua
+nat-5.0.3/test/parser_log/sample_07.lua
+nat-5.0.3/test/parser_log/sample_08.lua
+nat-5.0.3/test/parser_log/sample_09.lua
+nat-5.0.3/test/parser_log/sample_10.lua
+nat-5.0.3/test/parser_log/sample_11.lua
+nat-5.0.3/test/parser_log/sample_12.lua
+nat-5.0.3/test/parser_log/sample_13.lua
+nat-5.0.3/test/parser_log/sample_14.lua
+nat-5.0.3/test/parser_log/sample_15.lua
+nat-5.0.3/test/parser_log/sample_16.lua
+nat-5.0.3/test/parser_log/sample_17.lua
+nat-5.0.3/test/parser_log/sample_b_01.lua
+nat-5.0.3/test/parser_log/sample_b_02.lua
+nat-5.0.3/test/parser_log/sample_b_03.lua
+nat-5.0.3/test/parser_log/sample_b_04.lua
+nat-5.0.3/test/parser_log/sample_b_05.lua
+nat-5.0.3/test/parser_log/sample_b_06.lua
+nat-5.0.3/test/parser_log/sample_b_07.lua
+nat-5.0.3/test/parser_log/sample_b_08.lua
+nat-5.0.3/test/parser_log/sample_b_09.lua
+nat-5.0.3/test/parser_log/sample_b_10.lua
+nat-5.0.3/test/parser_log/sample_b_11.lua
+nat-5.0.3/test/parser_log/sample_b_12.lua
+nat-5.0.3/test/parser_log/sample_b_13.lua
+nat-5.0.3/test/parser_log/sample_b_14.lua
+nat-5.1.3/README
+nat-5.1.3/llex_mk2.lua
+nat-5.1.3/lparser_mk2.lua
+nat-5.1.3/test/test_llex_mk2.lua
+nat-5.1.3/test/test_lparser_mk2.lua
+nat-5.1.3/test/test_lparser_mk2_2.lua
+nat-5.1.3/test/parser_log/sample_01.lua
+nat-5.1.3/test/parser_log/sample_02.lua
+nat-5.1.3/test/parser_log/sample_03.lua
+nat-5.1.3/test/parser_log/sample_04.lua
+nat-5.1.3/test/parser_log/sample_05.lua
+nat-5.1.3/test/parser_log/sample_06.lua
+nat-5.1.3/test/parser_log/sample_07.lua
+nat-5.1.3/test/parser_log/sample_08.lua
+nat-5.1.3/test/parser_log/sample_09.lua
+nat-5.1.3/test/parser_log/sample_10.lua
+nat-5.1.3/test/parser_log/sample_11.lua
+nat-5.1.3/test/parser_log/sample_12.lua
+nat-5.1.3/test/parser_log/sample_13.lua
+nat-5.1.3/test/parser_log/sample_14.lua
+nat-5.1.3/test/parser_log/sample_15.lua
+nat-5.1.3/test/parser_log/sample_16.lua
+nat-5.1.3/test/parser_log/sample_17.lua
+nat-5.1.3/test/parser_log/sample_18.lua
+nat-5.1.3/test/parser_log/sample_19.lua
+nat-5.1.3/test/parser_log/sample_20.lua
+nat-5.1.3/test/parser_log/sample_21.lua
+nat-5.1.3/test/parser_log/sample_22.lua
+nat-5.1.3/test/parser_log/sample_23.lua
+nat-5.1.3/test/parser_log/sample_24.lua
+nat-5.1.3/test/parser_log/sample_25.lua
+nat-5.1.3/test/parser_log/sample_26.lua
+nat-5.1.3/test/parser_log/sample_27.lua
+nat-5.1.3/test/parser_log/sample_28.lua
+nat-5.1.3/test/parser_log/sample_29.lua
+nat-5.1.3/test/parser_log/sample_30.lua
+nat-5.1.3/test/parser_log/sample_31.lua
+test_lua/README
+test_lua/test_scripts-5.0.lua
+test_lua/test_scripts-5.1.lua
+test_lua/test_parser-5.0.lua
+test_lua/test_parser-5.1.lua
+test_lua/files-lua-5.0.txt
+test_lua/files-other-5.0.txt
+test_lua/files-yueliang-5.0.txt
+test_lua/files-lua-5.1.txt
+test_lua/files-other-5.1.txt
+test_lua/files-yueliang-5.1.txt
+test_lua/5.0/bisect.lua
+test_lua/5.0/cf.lua
+test_lua/5.0/echo.lua
+test_lua/5.0/env.lua
+test_lua/5.0/factorial.lua
+test_lua/5.0/fib.lua
+test_lua/5.0/fibfor.lua
+test_lua/5.0/globals.lua
+test_lua/5.0/hello.lua
+test_lua/5.0/life.lua
+test_lua/5.0/luac.lua
+test_lua/5.0/printf.lua
+test_lua/5.0/readonly.lua
+test_lua/5.0/sieve.lua
+test_lua/5.0/sort.lua
+test_lua/5.0/table.lua
+test_lua/5.0/trace-calls.lua
+test_lua/5.0/trace-globals.lua
+test_lua/5.0/undefined.lua
+test_lua/5.0/xd.lua
+test_lua/5.1/fib.lua
+test_lua/5.1/printf.lua
+test_lua/5.1/hello.lua
+test_lua/5.1/factorial.lua
+test_lua/5.1/fibfor.lua
+test_lua/5.1/bisect.lua
+test_lua/5.1/sieve.lua
+test_lua/5.1/xd.lua
+test_lua/5.1/readonly.lua
+test_lua/5.1/echo.lua
+test_lua/5.1/life.lua
+test_lua/5.1/trace-globals.lua
+test_lua/5.1/globals.lua
+test_lua/5.1/luac.lua
+test_lua/5.1/sort.lua
+test_lua/5.1/table.lua
+test_lua/5.1/env.lua
+test_lua/5.1/cf.lua
+test_lua/5.1/trace-calls.lua
diff --git a/LuaSL/testLua/yueliang-0.4.1/OlderNews b/LuaSL/testLua/yueliang-0.4.1/OlderNews
new file mode 100644
index 0000000..7fe9c9e
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/OlderNews
@@ -0,0 +1,43 @@
+OLDER NEWS
+
+Major changes for version 0.2.4 (details in the ChangeLog):
+* Completely reworked native parser skeleton for 5.0.3
+  (Partially working, test snippets and logging messages being written
+   in order to verify it. This is a test run limited to a parser
+   skeleton before doing a full native implementation for 5.1.x)
+
+Major changes for version 0.2.3 (details in the ChangeLog):
+* Updated front end to 5.1.3
+
+Major changes for version 0.2.2 (details in the ChangeLog):
+* Updated front end to 5.1.2
+
+Major changes for version 0.2.1 (details in the ChangeLog):
+* Added a parser test suite for both 5.0.3 and 5.1.1 front ends
+* One bug fixed for the 5.1.1 front end
+
+Major changes for version 0.2.0 (details in the ChangeLog):
+* Yueliang can generate Lua 5.1.1 binary chunks now
+
+Major changes for version 0.1.4 (details in the ChangeLog):
+* updated 5.0.2 material to 5.0.3, front end test script
+* updated 5.1 material to 5.1.1, added ldump.lua, lopcodes.lua,
+  and some test scripts, lexer debugged
+
+Major changes for version 0.1.3 (details in the ChangeLog):
+* added a Lua-style expression parsing demonstrator
+* added lexer for Lua 5.1
+* native versions of Lua 5.0.2 lexer in the nat-5.0.2 directory
+* 0.1.3 will be the last version of Yueliang for Lua 5.0.2
+
+Major changes for version 0.1.2 (details in the ChangeLog):
+* added test cases for number conversion functions in ldump.lua
+  (recognizes +/- infinity now)
+
+Major changes for version 0.1.1 (details in the ChangeLog):
+* added a script to generate a call graph or hierarchy
+
+Major changes for version 0.1.0 (details in the ChangeLog):
+* initial release: lexer/parser/code generator works, and binary
+  chunks can be produced
+
diff --git a/LuaSL/testLua/yueliang-0.4.1/README b/LuaSL/testLua/yueliang-0.4.1/README
new file mode 100644
index 0000000..9ee1437
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/README
@@ -0,0 +1,156 @@
+
+  Yueliang
+  Lua implemented in Lua
+
+  Copyright (c) 2005-2008 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions under which this
+  software may be distributed (basically a Lua 5-style license.)
+
+  Website:      http://yueliang.luaforge.net/
+  Project page: http://luaforge.net/projects/yueliang/
+
+--
+
+INTRODUCTION
+
+The goal of Yueliang is to implement Lua 5 in Lua 5. Such a codebase, if
+well documented, can be a useful prototyping and educational tool.
+Initially, the focus is on the front side of Lua, i.e. the lexical
+analyzer, the parser and the code generator, in order to generate binary
+chunks. Yueliang currently produces the exact binary chunk as the
+original Lua 5 itself for Lua 5.0.3 and Lua 5.1.3. Yueliang is moon in
+Mandarin.
+
+A port of the back side (the VM) is being considered, but note that
+there is a recent project on LuaForge called LuLu that does just this.
+
+Note: the codebase is currently a no-brainer port of Lua's front side C
+source code to Lua code, and the C heritage is retained as much as
+possible to allow for easy comparison. Due to certain implementation
+methods, processing might be slow (especially if the source file causes
+a lot of string processing.) The initial version is not meant to be
+fast. Even unused arguments are retained. Asserts are currently enabled.
+While the Lua code itself is portable, portions of the code is
+hard-coded to generate output for an x86-type platform (32-bit ints,
+doubles, little-endian.)
+
+See the test_lua directory for an automatic tester, test_scripts*.lua.
+Only the lexer currently has a basic test suite. Performance for the
+no-brainer port of the Lua 5.0.2 front end in Yueliang 0.1.0 is 28
+seconds on an Athlon 2500+, or about 29.5KB/sec. (Native C is virtually
+instantaneous, so a comparison is pointless, really.) I think a test
+suite for the parser will be better than running it on random files. See
+below for a list of todos.
+
+For versions of Yueliang corresponding to older minor releases of Lua,
+for example Lua 5.0.2 or Lua 5.1.1, please look at the README files in
+each of the orig-5.* directory for information on the last version of
+Yueliang corresponding to the particular Lua release.
+
+--
+
+NOTES
+
+* there is a failed assert in luaK:addk for both versions of lcode.lua,
+  the assert is currently incorrectly written
+* luaG_checkcode() in both versions of lparser.lua has currently not
+  been implemented (better put in the runtime backend?)
+* need to check compliance of lexers with recognizing characters beyond
+  normal ASCII (accented characters) when used in identifiers
+
+--
+
+WHAT'S NEW
+
+Major changes for version 0.4.1 (details in the ChangeLog):
+* Tested native 5.0.x and 5.1.x parsers with lots of test cases
+* Fixed two bugs in native 5.1.x parser, # and % operator handling
+
+Major changes for version 0.4.0 (details in the ChangeLog):
+* A working native parser skeleton for Lua 5.1.x, plus code
+  to deal with variable classification
+* Sample parser log files covering all of the grammar
+
+Major changes for version 0.3.2 (details in the ChangeLog):
+* A working native lexer for Lua 5.1.x
+
+Major changes for version 0.3.1 (details in the ChangeLog):
+* Mark 2 of the native parser skeleton for 5.0.3 which does
+  variable classification into locals, upvalues or globals
+* Sample parser log files exercising variable classification
+
+Major changes for version 0.3.0 (details in the ChangeLog):
+* Native parser skeleton for 5.0.3 mostly works
+* Sample parser log files covering all of the grammar
+
+Older items can be found in OlderNews
+
+--
+
+SOME SIZE STATS
+
+Here are some 0.1.0 size statistics (note that embedding the sources is
+redundant or pretty useless, as you will need an already present front
+end to process the source code!) for the 6 files main in orig-5.0.3
+minus luac.lua:
+
+                        Size    Zipped
+Original sources*       130162   29546
+with LuaSrcDiet*         48308   13841
+luac                    108174   32238
+luac -s                  64930   21867
+
+*note: embedding these would be a little pointless
+
+There are some more size stats in the README file in the nat-5.0.3
+directory, for native lexers.
+
+--
+
+IMPLEMENTATION PLAN
+
+Here are some ideas, in no particular order or priority, with no
+particular implementation time frame:
+
+(a) A straight no-brainer port of Lua's front side C source code to
+    Lua code, no optimization or heavy rewriting is done (MOSTLY DONE)
+(b) A test suite for the lexer (MOSTLY DONE)
+(c) A test suite for the:
+    (i) parser (MOSTLY DONE)
+    (ii) code generator (CAN ADAPT LUA'S TEST SUITE)
+(d) Documentation for Lua code generation (STUDYING)
+(e) A straight no-brainer port of Lua's back side C source code to
+    Lua code, no optimization or heavy rewriting is done (ON HIATUS)
+    *** NOTE: there is a Lua-on-Lua project called LuLu on LuaForge
+(f) A test suite for the VM (CAN ADAPT LUA'S TEST SUITE)
+(g) Partial rewrites of Yueliang. (NATIVE LEXERS AND PARSERS DONE
+    FOR BOTH 5.0 AND 5.1)
+(h) Addition of features to Yueliang.
+
+--
+
+ACKNOWLEDGEMENTS
+
+Yueliang is a straight port of Lua 5 code, so I have included the Lua
+5.0.x copyright as well the Lua 5.1.x copyright files.
+
+Thanks to the LuaForge people for hosting this.
+Developed on SciTE http://www.scintilla.org/. Two thumbs up.
+
+--
+
+FEEDBACK
+
+Feedback and contributions are welcome. Your name will be acknowledged,
+as long as you are willing to comply with COPYRIGHT. If your material is
+self-contained, you can retain a copyright notice for those material in
+your own name, as long as you use the same Lua 5/MIT-style copyright.
+
+I am on dial-up, so I might not be able to reply immediately. My
+alternative e-mail address is: keinhong AT gmail DOT com
+
+Enjoy!!
+
+Kein-Hong Man (esq.)
+Kuala Lumpur
+Malaysia 20080531
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/README b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/README
new file mode 100644
index 0000000..b6a65d2
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/README
@@ -0,0 +1,122 @@
+nat-5.0.3
+
+This directory contains versions of front end files that are rewritten
+to be more "native" to Lua. These files should be considered as
+exercises in exploring ways to write the front end, for example, to
+write a front end that is optimized for size, etc. See also file size
+data further below.
+
+The following are the different versions available (mk2 == "mark 2",
+this is commonly used in the UK, e.g. for aeroplanes during WWII):
+
+Lexers
+------
+
+WARNING: Theses lexer may or may not exhibit exact behaviour when lexing
+strings or long strings with embedded CRLF newlines. The CRLF sequence
+may be translated into LF (the reference manual is unclear on this.) The
+user is advised to stick to LF line endings exclusively.
+
+llex_mk2        Rewritten from original ported code to become more
+                Lua-like. Still uses a stream-based input interface.
+                MK2 still scans using a per-character function that
+                is pretty inefficient.
+
+                Status: TESTED
+
+llex_mk3        A rewritten version of MK2 that needs input to be
+                entered as a single string. Unless an application's
+                need is very unusual, this should not be a problem.
+                It will not work for per-line interaction, though.
+                MK3 no longer needs stream input functions. This
+                version is also heavily optimized for size. MK3 scans
+                using find functions and doesn't create many strings.
+
+                Status: TESTED
+
+llex_mk4        A rewritten version of MK3 that is line-oriented.
+                This allows a command-line version that works in the
+                usual way to be written.
+
+                Status: TESTED
+
+The following is a comparison of file sizes (as of 20061111):
+
+                 lzio    llex    TOTAL  Speed (2)
+                (bytes) (bytes) (bytes) (KB/s)
+----------------------------------------------
+Binary (Mingw)    416    5312    5728     N/A
+----------------------------------------------
+(in orig-5.0.3:)
+----------------------------------------------
+normal           2219   12639   14585    404.9
+stripped         1292    7618    8910
+----------------------------------------------
+(in nat-5.0.3:)
+----------------------------------------------
+mk2              1995    7628    9623    469.5
+mk2-stripped     1195    4003    5298
+----------------------------------------------
+mk3 (1)             -    6552    6552   1870.8
+mk3-stripped        -    3286    3286
+----------------------------------------------
+mk4              1337    6956    8293    802.9
+mk4-stripped      798    3457    4225
+----------------------------------------------
+
+(1) mk3 does not have a file input streaming function
+
+(2) Speed was benchmarked using a Sempron 3000+. Benchmark scripts are
+in the test directories. Best of first three figures quoted. This is a
+measurement of raw lexer speed, i.e. tokens are read but no processing
+is done. All files are read in entirely before running the lexer.
+
+The performance of the orig-5.0.3 parser is probably a whole magnitude
+less than the orig-5.0.3 lexer performance.
+
+Parsers
+-------
+
+lparser_mk3     Written for the simplified lexer interface of llex_mk3+.
+                (Should be compatible with llex_mk4 too, but untested.)
+                This is a lexer skeleton, stripped of codegen code. See
+                the comments in the source code for more information.
+                Without logging messages and comments, it's under 600 LOC.
+
+                Sample output of the parser message logger can be found
+                in the test/parser_log subdirectory.
+
+                Tested with test_parser-5.0.lua, the Lua 5.0.x parser test
+                cases in the test_lua/ directory, appears to be fine.
+
+                Status: SNIPPETS APPEAR TO WORK
+
+lparser_mk3b    As above, with variable management code added. In order
+                to use the parser usefully, variable management code is
+                a big step forward, allowing the parser to differentiate
+                locals, upvalues and globals. The number of added lines
+                is around 100 LOC. A binary chunk of lparser_mk3b
+                (stripped) is 18076 bytes.
+
+                Sample output of the parser message logger can be found
+                in the test/parser_log subdirectory.
+
+                Tested with test_parser-5.0.lua, the Lua 5.0.x parser test
+                cases in the test_lua/ directory, appears to be fine.
+
+                Status: SNIPPETS APPEAR TO WORK
+
+There will be no further development beyond lparser_mk3b. Further work
+will focus on a 5.1.x equivalent, for which both a parser skeleton and a
+parser with full code generation using nicely commented code is planned.
+
+Other notes:
+------------
+
+For Lua 5.0.2, see Yueliang 0.1.3, which was the last release of Lua
+5.0.2 material.
+
+Test scripts for the lexer should probably be consolidated, but it's a
+little difficult because not all lexers give the same error messages or
+use the same token names or format.
+
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/llex_mk2.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/llex_mk2.lua
new file mode 100644
index 0000000..955f229
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/llex_mk2.lua
@@ -0,0 +1,309 @@
+--[[--------------------------------------------------------------------
+
+  llex.lua
+  Lua 5 lexical analyzer in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * parser to implement luaX_syntaxerror, call errorline with 2 parms
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- local lex_init = require("llex.lua")
+-- local llex = lex_init(z, source)
+-- llex:chunkid()
+-- * returns formatted name of chunk id
+-- llex:errorline(s, token, line)
+-- * throws an error with a formatted message
+-- llex:lex()
+-- * returns next lexical element (token, seminfo)
+----------------------------------------------------------------------]]
+
+return
+function(z, source)
+--[[--------------------------------------------------------------------
+-- lexer initialization
+----------------------------------------------------------------------]]
+  --------------------------------------------------------------------
+  -- initialize variables
+  --------------------------------------------------------------------
+  local string = string
+  local EOF = "<eof>"
+  local z = z
+  local luaX = {source = source, lineno = 1,}
+  local curr, buff
+  --------------------------------------------------------------------
+  -- initialize keyword list
+  --------------------------------------------------------------------
+  local kw = {}
+  for v in string.gfind([[
+and break do else elseif end false for function if in
+local nil not or repeat return then true until while]], "%S+") do
+    kw[v] = true
+  end
+--[[--------------------------------------------------------------------
+-- support functions
+----------------------------------------------------------------------]]
+  --------------------------------------------------------------------
+  -- returns a chunk name or id
+  --------------------------------------------------------------------
+  function luaX:chunkid()
+    local sub = string.sub
+    local first = sub(source, 1, 1)
+    if first == "=" or first == "@" then
+      return sub(source, 2)  -- remove first char
+    end
+    return "[string]"
+  end
+  --------------------------------------------------------------------
+  -- formats error message and throws error
+  --------------------------------------------------------------------
+  function luaX:errorline(s, token, line)
+    if not line then line = self.lineno end
+    error(string.format("%s:%d: %s near '%s'", self:chunkid(), line, s, token))
+  end
+  --------------------------------------------------------------------
+  -- throws a lexer error
+  --------------------------------------------------------------------
+  local function lexerror(s, token)
+    if not token then token = buff end
+    luaX:errorline(s, token)
+  end
+  --------------------------------------------------------------------
+  -- gets the next character and returns it
+  --------------------------------------------------------------------
+  local function nextc()
+    local c = z:getc()
+    curr = c
+    return c
+  end
+  --------------------------------------------------------------------
+  -- save current character into token buffer, grabs next character
+  -- * save(c) merged into this and elsewhere to save space
+  --------------------------------------------------------------------
+  local function save_next()
+    buff = buff..curr
+    return nextc()
+  end
+  --------------------------------------------------------------------
+  -- move on to next line
+  --------------------------------------------------------------------
+  local function nextline()
+    local luaX = luaX
+    nextc()  -- skip '\n'
+    luaX.lineno = luaX.lineno + 1
+  end
+--[[--------------------------------------------------------------------
+-- reads a number (LUA_NUMBER)
+----------------------------------------------------------------------]]
+  local function read_numeral(comma)
+    buff = ""
+    local find = string.find
+    if comma then buff = "." end
+    ------------------------------------------------------------------
+    while find(curr, "%d") do save_next() end
+    if curr == "." then
+      if save_next() == "." then
+        save_next()
+        lexerror("ambiguous syntax (dots follows digits)")
+      end
+    end
+    ------------------------------------------------------------------
+    while find(curr, "%d") do save_next() end
+    if find(curr, "^[eE]$") then
+      save_next()  -- read 'E' and optional exponent sign
+      if find(curr, "^[+-]$") then save_next() end
+      while find(curr, "%d") do save_next() end
+    end
+    c = tonumber(buff)
+    if c then return c end
+    lexerror("malformed number")
+  end
+--[[--------------------------------------------------------------------
+-- reads a long string or long comment
+----------------------------------------------------------------------]]
+  local function read_long(is_str)
+    local cont = 0
+    buff = ""
+    nextc()  -- pass the '[['
+    if curr == "\n" then  -- string starts with a newline?
+      nextline()  -- skip it
+    end
+    while true do
+      local c = curr
+      ----------------------------------------------------------------
+      if c == "EOZ" then
+        lexerror(is_str and "unfinished long string" or
+                 "unfinished long comment", EOF)
+      ----------------------------------------------------------------
+      elseif c == "[" then
+        if save_next() == "[" then
+          cont = cont + 1; save_next()
+        end
+      ----------------------------------------------------------------
+      elseif c == "]" then
+        if save_next() == "]" then
+          if cont == 0 then break end
+          cont = cont - 1; save_next()
+        end
+      ----------------------------------------------------------------
+      elseif c == "\n" then
+        buff = buff.."\n"; nextline()
+        if not is_str then buff = "" end -- avoid wasting space
+      ----------------------------------------------------------------
+      else
+        save_next()
+      ----------------------------------------------------------------
+      end--if c
+    end--while
+    nextc()  -- skip second ']'
+    return string.sub(buff, 1, -2)
+  end
+--[[--------------------------------------------------------------------
+-- reads a string
+----------------------------------------------------------------------]]
+  local function read_string(del)
+    local find = string.find
+    buff = ""
+    save_next()  -- save delimiter
+    while curr ~= del do
+      local c = curr
+      ----------------------------------------------------------------
+      -- end-of-file, newline
+      ----------------------------------------------------------------
+      if c == "EOZ" then
+        lexerror("unfinished string", EOF)
+      elseif c == "\n" then
+        lexerror("unfinished string")
+      ----------------------------------------------------------------
+      -- escapes
+      ----------------------------------------------------------------
+      elseif c == "\\" then
+        c = nextc()  -- do not save the '\'
+        if c ~= "EOZ" then -- will raise an error next loop iteration
+          local d = find("\nabfnrtv", c, 1, 1)
+          if d then
+            buff = buff..string.sub("\n\a\b\f\n\r\t\v", d, d)
+            if d == 1 then nextline() else nextc() end
+          elseif find(c, "%D") then
+            save_next()  -- handles \\, \", \', and \?
+          else  -- \xxx
+            c, d = 0, 0
+            repeat
+              c = 10 * c + curr; d = d + 1; nextc()
+            until d >= 3 or find(curr, "%D")
+            if c > 255 then  -- UCHAR_MAX
+              lexerror("escape sequence too large")
+            end
+            buff = buff..string.char(c)
+          end
+        end
+      ----------------------------------------------------------------
+      -- a regular character
+      ----------------------------------------------------------------
+      else
+        save_next()
+      ----------------------------------------------------------------
+      end--if c
+    end--while
+    nextc()  -- skip delimiter
+    return string.sub(buff, 2)
+  end
+--[[--------------------------------------------------------------------
+-- main lexer function
+----------------------------------------------------------------------]]
+  function luaX:lex()
+    local find = string.find
+    while true do
+      local c = curr
+      ----------------------------------------------------------------
+      -- operators, numbers
+      ----------------------------------------------------------------
+      local d = find("=<>~\"'-[.\n", c, 1, 1)
+      if d then
+        ------------------------------------------------------------
+        if d <= 4 then       -- "=<>~" (relational operators)
+          if nextc() ~= "=" then return c end
+          nextc(); return c.."="
+        ------------------------------------------------------------
+        elseif d <= 6 then   -- "\"" or "'" (string)
+          return "<string>", read_string(c)
+        ------------------------------------------------------------
+        elseif c == "-" then   -- "-" ("-", comment, or long comment)
+          if nextc() ~= "-" then return "-" end
+          c = nextc()    -- otherwise it is a comment
+          if c == "[" and nextc() == "[" then
+            read_long()  -- long comment
+          else  -- short comment
+            while c ~= "\n" and c ~= "EOZ" do c = nextc() end
+          end
+        ------------------------------------------------------------
+        elseif c == "[" then   -- "[" ("[" or long string)
+          if nextc() ~= "[" then return c end
+          return "<string>", read_long(true)
+        ------------------------------------------------------------
+        elseif c == "." then   -- "." (".", concatenation, or dots)
+          buff = ""
+          c = save_next()
+          if c == "." then   -- interpret 2 or 3 dots
+            if save_next() == "." then save_next() end
+            return buff
+          end
+          if find(c, "%d") then
+            return "<number>", read_numeral(true)
+          end
+          return "."
+        ------------------------------------------------------------
+        else-- c == "\n" then  -- "\n" (newline)
+          nextline()
+        ------------------------------------------------------------
+        end--if d/c
+      ----------------------------------------------------------------
+      -- number, end-of-file, identifier or reserved word
+      ----------------------------------------------------------------
+      elseif find(c, "%d") then  -- number
+        return "<number>", read_numeral(false)
+      ----------------------------------------------------------------
+      elseif find(c, "[_%a]") then  -- reads a name
+        if c == "EOZ" then return EOF end  -- end-of-file
+        buff = ""
+        repeat
+          c = save_next()
+        until c == "EOZ" or find(c, "[^_%w]")
+        c = buff
+        if kw[c] then return c end  -- reserved word
+        return "<name>", c
+      ----------------------------------------------------------------
+      -- whitespace, other characters, control characters
+      ----------------------------------------------------------------
+      elseif find(c, "%s") then  -- whitespace
+        nextc()
+      ----------------------------------------------------------------
+      elseif find(c, "%c") then  -- control characters
+        lexerror("invalid control char", "char("..string.byte(c)..")")
+      ----------------------------------------------------------------
+      else  -- single-char tokens (+ - / etc.)
+        nextc(); return c
+      ----------------------------------------------------------------
+      end--if d/c
+    end--while
+  end
+--[[--------------------------------------------------------------------
+-- initial processing (shbang handling)
+----------------------------------------------------------------------]]
+  nextc()  -- read first char
+  if cur == "#" then  -- skip first line
+    repeat nextc() until curr == "\n" or curr == "EOZ"
+  end
+  return luaX
+--[[------------------------------------------------------------------]]
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/llex_mk3.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/llex_mk3.lua
new file mode 100644
index 0000000..1cd22b5
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/llex_mk3.lua
@@ -0,0 +1,266 @@
+--[[--------------------------------------------------------------------
+
+  llex.lua
+  Lua 5 lexical analyzer in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * takes in the entire source at once
+-- * code is heavily optimized for size
+--
+-- local lex_init = require("llex.lua")
+-- local llex = lex_init(z, source)
+-- llex:chunkid()
+--   * returns formatted name of chunk id
+-- llex:errorline(s, line)
+--   * throws an error with a formatted message
+-- llex:lex()
+--   * returns next lexical element (token, seminfo)
+-- llex.ln
+--   * line number
+----------------------------------------------------------------------]]
+
+return
+function(z, source)
+  --------------------------------------------------------------------
+  -- initialize variables
+  -- * I is the upvalue, i is the local version for space/efficiency
+  --------------------------------------------------------------------
+  local string = string
+  local find, sub = string.find, string.sub
+  local EOF = "<eof>"
+  local luaX = { ln = 1 }
+  local I = 1
+  --------------------------------------------------------------------
+  -- initialize keyword list
+  --------------------------------------------------------------------
+  local kw = {}
+  for v in string.gfind([[
+and break do else elseif end false for function if in
+local nil not or repeat return then true until while]], "%S+") do
+    kw[v] = true
+  end
+  --------------------------------------------------------------------
+  -- returns a chunk name or id
+  --------------------------------------------------------------------
+  function luaX:chunkid()
+    if find(source, "^[=@]") then
+      return sub(source, 2)  -- remove first char
+    end
+    return "[string]"
+  end
+  --------------------------------------------------------------------
+  -- formats error message and throws error
+  -- * a simplified version, does not report what token was responsible
+  --------------------------------------------------------------------
+  function luaX:errorline(s, line)
+    error(string.format("%s:%d: %s", self:chunkid(), line or self.ln, s))
+  end
+  ----------------------------------------------------------------------
+  -- reads a long string or long comment
+  ----------------------------------------------------------------------
+  local function read_long(i, is_str)
+    local luaX = luaX
+    local string = string
+    local cont = 1
+    if sub(z, i, i) == "\n" then
+      i = i + 1
+      luaX.ln = luaX.ln + 1
+    end
+    local j = i
+    while true do
+      local p, q, r = find(z, "([\n%[%]])", i) -- (long range)
+      if not p then
+        luaX:errorline(is_str and "unfinished long string" or
+                       "unfinished long comment")
+      end
+      i = p + 1
+      if r == "\n" then
+        luaX.ln = luaX.ln + 1
+      elseif sub(z, i, i) == r then -- only [[ or ]]
+        i = i + 1
+        if r == "[" then
+          cont = cont + 1
+        else-- r == "]" then
+          if cont == 1 then break end   -- last ]] found
+          cont = cont - 1
+        end
+      end
+    end--while
+    I = i
+    return sub(z, j, i - 3)
+  end
+  ----------------------------------------------------------------------
+  -- reads a string
+  ----------------------------------------------------------------------
+  local function read_string(i, del)
+    local luaX = luaX
+    local string = string
+    local buff = ""
+    while true do
+      local p, q, r = find(z, "([\n\\\"\'])", i) -- (long range)
+      if p then
+        if r == "\n" then
+          luaX:errorline("unfinished string")
+        end
+        buff = buff..sub(z, i, p - 1)           -- normal portions
+        i = p
+        if r == "\\" then                       -- handle escapes
+          i = i + 1
+          r = sub(z, i, i)
+          if r == "" then break end -- (error)
+          p = find("\nabfnrtv", r, 1, 1)
+          ------------------------------------------------------
+          if p then                             -- special escapes
+            r = sub("\n\a\b\f\n\r\t\v", p, p)
+            if p == 1 then luaX.ln = luaX.ln + 1 end
+            i = i + 1
+          ------------------------------------------------------
+          elseif find(r, "%D") then             -- other non-digits
+            i = i + 1
+          ------------------------------------------------------
+          else                                  -- \xxx sequence
+            local p, q, s = find(z, "^(%d%d?%d?)", i)
+            i = q + 1
+            if s + 1 > 256 then -- UCHAR_MAX
+              luaX:errorline("escape sequence too large")
+            end
+            r = string.char(s)
+          ------------------------------------------------------
+          end--if p
+        else
+          i = i + 1
+          if r == del then
+            I = i
+            return buff                         -- ending delimiter
+          end
+        end--if r
+        buff = buff..r
+      else
+        break -- (error)
+      end--if p
+    end--while
+    luaX:errorline("unfinished string")
+  end
+  ----------------------------------------------------------------------
+  -- main lexer function
+  ----------------------------------------------------------------------
+  function luaX:lex()
+    local string = string
+    local find, len = find, string.len
+    while true do--outer
+      local i = I
+      -- inner loop allows break to be used to nicely section tests
+      while true do--inner
+        ----------------------------------------------------------------
+        local p, _, r = find(z, "^([_%a][_%w]*)", i)
+        if p then
+          I = i + len(r)
+          if kw[r] then return r end            -- keyword
+          return "<name>", r                    -- identifier
+        end
+        ----------------------------------------------------------------
+        local p, q, r = find(z, "^(%.?)%d", i)
+        if p then                               -- numeral
+          if r == "." then i = i + 1 end
+          local _, n, r, s = find(z, "^%d*(%.?%.?)%d*([eE]?)", i)
+          q = n
+          i = q + 1
+          if len(r) == 2 then
+            self:errorline("ambiguous syntax (dots follows digits)")
+          end
+          if len(s) == 1 then                   -- optional exponent
+            local _, n = find(z, "^[%+%-]?%d*", i) -- optional sign
+            q = n
+            i = q + 1
+          end
+          r = tonumber(sub(z, p, q))
+          I = i
+          if not r then self:errorline("malformed number") end
+          return "<number>", r
+        end
+        ----------------------------------------------------------------
+        local p, q, r = find(z, "^(%s)[ \t]*", i)
+        if p then
+          if r == "\n" then                     -- newline
+            self.ln = self.ln + 1
+            I = i + 1
+          else
+            I = q + 1                           -- whitespace
+          end
+          break -- (continue)
+        end
+        ----------------------------------------------------------------
+        local p, _, r = find(z, "^(%p)", i)     -- symbols/punctuation
+        if p then
+          local q = find("-[\"\'.=<>~", r, 1, 1)
+          if q then -- further processing for more complex symbols
+            ----------------------------------------------------
+            if q <= 2 then
+              if q == 1 then                    -- minus
+                if find(z, "^%-%-", i) then
+                  i = i + 2
+                  if find(z, "^%[%[", i) then   -- long comment
+                    read_long(i + 2)
+                  else                          -- short comment
+                    I = find(z, "\n", i) or (len(z) + 1)
+                  end
+                  break -- (continue)
+                end
+                -- (fall through for "-")
+              elseif q == 2 then                -- [ or long string
+                if find(z, "^%[%[", i) then
+                  return "<string>", read_long(i + 2, true)
+                end
+                -- (fall through for "[")
+              end
+            ----------------------------------------------------
+            elseif q <= 5 then
+              if q < 5 then                     -- strings
+                return "<string>", read_string(i + 1, r)
+              end
+              local _, _, s = find(z, "^(%.%.?%.?)", i) -- dots
+              r = s
+              -- (fall through)
+            ----------------------------------------------------
+            else                                -- relational/logic
+              local _, _, s = find(z, "^(%p=?)", i)
+              r = s
+              -- (fall through)
+            end
+          end
+          I = i + len(r); return r -- for other symbols, fall through
+        end
+        ----------------------------------------------------------------
+        local r = sub(z, i, i)
+        if r ~= "" then
+          if find(r, "%c") then                 -- invalid control char
+            self:errorline("invalid control char("..string.byte(r)..")")
+          end
+          I = i + 1; return r                   -- other single-char tokens
+        end
+        return EOF                              -- end of stream
+        ----------------------------------------------------------------
+      end--while inner
+    end--while outer
+  end
+  --------------------------------------------------------------------
+  -- initial processing (shbang handling)
+  --------------------------------------------------------------------
+  local p, q, r = find(z, "^#[^\n]*(\n?)")
+  if p then                             -- skip first line
+    I = q + 1
+    if r == "\n" then luaX.ln = luaX.ln + 1 end
+  end
+  return luaX
+  --------------------------------------------------------------------
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/llex_mk4.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/llex_mk4.lua
new file mode 100644
index 0000000..42559a3
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/llex_mk4.lua
@@ -0,0 +1,285 @@
+--[[--------------------------------------------------------------------
+
+  llex.lua
+  Lua 5 lexical analyzer in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * a line-oriented version of mk3
+--
+-- local lex_init = require("llex.lua")
+-- local llex = lex_init(z, source)
+-- llex:chunkid()
+--   * returns formatted name of chunk id
+-- llex:errorline(s, line)
+--   * throws an error with a formatted message
+-- llex:lex()
+--   * returns next lexical element (token, seminfo)
+-- llex.ln
+--   * line number
+----------------------------------------------------------------------]]
+
+return
+function(zio, source)
+  --------------------------------------------------------------------
+  -- initialize variables
+  -- * I is the upvalue, i is the local version for space/efficiency
+  --------------------------------------------------------------------
+  local string = string
+  local find, sub = string.find, string.sub
+  local EOF = "<eof>"
+  local luaX = { ln = 0 }
+  local I, z
+  --------------------------------------------------------------------
+  -- initialize keyword list
+  --------------------------------------------------------------------
+  local kw = {}
+  for v in string.gfind([[
+and break do else elseif end false for function if in
+local nil not or repeat return then true until while]], "%S+") do
+    kw[v] = true
+  end
+  --------------------------------------------------------------------
+  -- returns a chunk name or id
+  --------------------------------------------------------------------
+  function luaX:chunkid()
+    if find(source, "^[=@]") then
+      return sub(source, 2)  -- remove first char
+    end
+    return "[string]"
+  end
+  --------------------------------------------------------------------
+  -- formats error message and throws error
+  -- * a simplified version, does not report what token was responsible
+  --------------------------------------------------------------------
+  function luaX:errorline(s, line)
+    error(string.format("%s:%d: %s", self:chunkid(), line or self.ln, s))
+  end
+  --------------------------------------------------------------------
+  -- move on to next line
+  --------------------------------------------------------------------
+  local function nextln()
+    local luaX = luaX
+    luaX.ln = luaX.ln + 1
+    z = zio:getln()
+    I = 1
+  end
+  ----------------------------------------------------------------------
+  -- reads a long string or long comment
+  ----------------------------------------------------------------------
+  local function read_long(i, is_str)
+    local luaX = luaX
+    local string = string
+    local buff = ""
+    local cont = 1
+    if sub(z, i, i) == "\n" then
+      nextln(); i = 1
+    end
+    while true do
+      local p, q, r = find(z, "([\n%[%]])", i) -- (long range)
+      if not p then
+        luaX:errorline(is_str and "unfinished long string" or
+                       "unfinished long comment")
+      end
+      buff = buff..string.sub(z, i, p - 1)      -- add a portion
+      i = p + 1
+      if sub(z, i, i) == r then -- only [[ or ]]
+        i = i + 1
+        if r == "[" then
+          cont = cont + 1
+        else-- r == "]" then
+          if cont == 1 then break end   -- last ]] found
+          cont = cont - 1
+        end
+        buff = buff..r..r
+      else                                      -- [ or ] or \n
+        buff = buff..r
+        if r == "\n" then
+          nextln(); i = 1
+        end
+      end
+    end--while
+    I = i
+    return buff
+  end
+  ----------------------------------------------------------------------
+  -- reads a string
+  ----------------------------------------------------------------------
+  local function read_string(i, del)
+    local luaX = luaX
+    local string = string
+    local buff = ""
+    while true do
+      local p, q, r = find(z, "([\n\\\"\'])", i) -- (long range)
+      if p then
+        if r == "\n" then
+          luaX:errorline("unfinished string")
+        end
+        buff = buff..sub(z, i, p - 1)           -- normal portions
+        i = p
+        if r == "\\" then                       -- handle escapes
+          i = i + 1
+          r = sub(z, i, i)
+          if r == "" then break end -- (error)
+          p = find("\nabfnrtv", r, 1, 1)
+          ------------------------------------------------------
+          if p then                             -- special escapes
+            r = sub("\n\a\b\f\n\r\t\v", p, p)
+            if p == 1 then
+              nextln(); i = 1
+            else
+              i = i + 1
+            end
+          ------------------------------------------------------
+          elseif find(r, "%D") then             -- other non-digits
+            i = i + 1
+          ------------------------------------------------------
+          else                                  -- \xxx sequence
+            local p, q, s = find(z, "^(%d%d?%d?)", i)
+            i = q + 1
+            if s + 1 > 256 then -- UCHAR_MAX
+              luaX:errorline("escape sequence too large")
+            end
+            r = string.char(s)
+          ------------------------------------------------------
+          end--if p
+        else
+          i = i + 1
+          if r == del then
+            I = i
+            return buff                         -- ending delimiter
+          end
+        end--if r
+        buff = buff..r
+      else
+        break -- (error)
+      end--if p
+    end--while
+    luaX:errorline("unfinished string")
+  end
+  ----------------------------------------------------------------------
+  -- main lexer function
+  ----------------------------------------------------------------------
+  function luaX:lex()
+    local string = string
+    local find, len = find, string.len
+    while true do--outer
+      local i = I
+      -- inner loop allows break to be used to nicely section tests
+      while true do--inner
+        ----------------------------------------------------------------
+        local p, _, r = find(z, "^([_%a][_%w]*)", i)
+        if p then
+          I = i + len(r)
+          if kw[r] then return r end            -- keyword
+          return "<name>", r                    -- identifier
+        end
+        ----------------------------------------------------------------
+        local p, q, r = find(z, "^(%.?)%d", i)
+        if p then                               -- numeral
+          if r == "." then i = i + 1 end
+          local _, n, r, s = find(z, "^%d*(%.?%.?)%d*([eE]?)", i)
+          q = n
+          i = q + 1
+          if len(r) == 2 then
+            self:errorline("ambiguous syntax (dots follows digits)")
+          end
+          if len(s) == 1 then                   -- optional exponent
+            local _, n = find(z, "^[%+%-]?%d*", i) -- optional sign
+            q = n
+            i = q + 1
+          end
+          r = tonumber(sub(z, p, q))
+          I = i
+          if not r then self:errorline("malformed number") end
+          return "<number>", r
+        end
+        ----------------------------------------------------------------
+        local p, q, r = find(z, "^(%s)[ \t]*", i)
+        if p then
+          if r == "\n" then                     -- newline
+            nextln()
+          else
+            I = q + 1                           -- whitespace
+          end
+          break -- (continue)
+        end
+        ----------------------------------------------------------------
+        local p, _, r = find(z, "^(%p)", i)     -- symbols/punctuation
+        if p then
+          local q = find("-[\"\'.=<>~", r, 1, 1)
+          if q then -- further processing for more complex symbols
+            ----------------------------------------------------
+            if q <= 2 then
+              if q == 1 then                    -- minus
+                if find(z, "^%-%-", i) then
+                  i = i + 2
+                  if find(z, "^%[%[", i) then   -- long comment
+                    read_long(i + 2)
+                  else                          -- short comment
+                    if find(z, "\n", i) then
+                      nextln()
+                    else
+                      I = len(z) + 1
+                    end
+                  end
+                  break -- (continue)
+                end
+                -- (fall through for "-")
+              elseif q == 2 then                -- [ or long string
+                if find(z, "^%[%[", i) then
+                  return "<string>", read_long(i + 2, true)
+                end
+                -- (fall through for "[")
+              end
+            ----------------------------------------------------
+            elseif q <= 5 then
+              if q < 5 then                     -- strings
+                return "<string>", read_string(i + 1, r)
+              end
+              local _, _, s = find(z, "^(%.%.?%.?)", i) -- dots
+              r = s
+              -- (fall through)
+            ----------------------------------------------------
+            else                                -- relational/logic
+              local _, _, s = find(z, "^(%p=?)", i)
+              r = s
+              -- (fall through)
+            end
+          end
+          I = i + len(r); return r -- for other symbols, fall through
+        end
+        ----------------------------------------------------------------
+        local r = sub(z, i, i)
+        if r ~= "" then
+          if find(r, "%c") then                 -- invalid control char
+            self:errorline("invalid control char("..string.byte(r)..")")
+          end
+          I = i + 1; return r                   -- other single-char tokens
+        end
+        return EOF                              -- end of stream
+        ----------------------------------------------------------------
+      end--while inner
+    end--while outer
+  end
+  --------------------------------------------------------------------
+  -- initial processing (shbang handling)
+  --------------------------------------------------------------------
+  nextln()
+  local p, q, r = find(z, "^#[^\n]*(\n?)")
+  if p then                             -- skip first line
+    I = q + 1
+    if r == "\n" then nextln() end
+  end
+  return luaX
+  --------------------------------------------------------------------
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/lparser_mk3.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/lparser_mk3.lua
new file mode 100644
index 0000000..17d6f64
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/lparser_mk3.lua
@@ -0,0 +1,1027 @@
+--[[--------------------------------------------------------------------
+
+  lparser.lua
+  Lua 5 parser in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2008 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * this is a Lua 5.0.x parser skeleton, for llex_mk3.lua lexer
+-- * written as a module factory with recognizable lparser.c roots
+-- * builds some data, performs logging for educational purposes
+-- * target is to have relatively efficient and clear code
+-- * needs one parameter, a lexer module that implements:
+--     luaX:lex() - returns appropriate [token, semantic info] pairs
+--     luaX.ln - current line number
+--     luaX:errorline(s, [line]) - dies with error message
+--
+-- Usage example:
+--   lex_init = require("llex_mk3.lua")
+--   parser_init = require("lparser_mk3.lua")
+--   local luaX = lex_init(chunk, "=string")
+--   local luaY = parser_init(luaX)
+--   local fs = luaY:parser()
+--
+-- Development notes:
+-- * see test_parser-5.0.lua for grammar elements based on lparser.c
+-- * lparser has a few extra items to help parsing/syntax checking
+--   (a) line number (error reporting), lookahead token storage
+--   (b) per-prototype states needs a storage list
+--   (c) 'break' needs a per-block flag in a stack
+--   (d) 'kind' (v.k) testing needed in expr_stat() and assignment()
+--       for disambiguation, thus v.k manipulation is retained
+--   (e) one line # var (lastln) for ambiguous (split line) function
+--       call checking
+--   (f) most line number function call args retained for future use
+--   (g) Lua 4 compatibility code completely removed
+--   (h) no variable management code! singlevar() always returns VLOCAL
+-- * parsing starts from the end of this file in luaY:parser()
+--
+----------------------------------------------------------------------]]
+
+return
+function(luaX)
+--[[--------------------------------------------------------------------
+-- structures and data initialization
+----------------------------------------------------------------------]]
+
+  local line                    -- start line # for error messages
+  local lastln                  -- last line # for ambiguous syntax chk
+  local tok, seminfo            -- token, semantic info pair
+  local peek_tok, peek_sem      -- ditto, for lookahead
+  local fs                      -- function state
+  local top_fs = {}             -- top-level function state
+  local luaY = {}
+  --------------------------------------------------------------------
+  local block_follow = {}       -- lookahead check in chunk(), returnstat()
+  for v in string.gfind("else elseif end until <eof>", "%S+") do
+    block_follow[v] = true
+  end
+  --------------------------------------------------------------------
+  local stat_call = {}          -- lookup for calls in stat()
+  for v in string.gfind("if while do for repeat function local return break", "%S+") do
+    stat_call[v] = v.."_stat"
+  end
+  --------------------------------------------------------------------
+  local binopr_left = {}        -- binary operators, left priority
+  local binopr_right = {}       -- binary operators, right priority
+  for op, lt, rt in string.gfind([[
+{+ 6 6}{- 6 6}{* 7 7}{/ 7 7}{^ 10 9}{.. 5 4}
+{~= 3 3}{== 3 3}{< 3 3}{<= 3 3}{> 3 3}{>= 3 3}
+{and 2 2}{or 1 1}
+]], "{(%S+)%s(%d+)%s(%d+)}") do
+    binopr_left[op] = lt + 0
+    binopr_right[op] = rt + 0
+  end
+  local unopr = { ["not"] = true, ["-"] = true, }  -- unary operators
+
+--[[--------------------------------------------------------------------
+-- logging: this logging function is for educational purposes
+-- * logged data can be retrieved from the returned data structure
+-- * or, replace self:log() instances with your custom code...
+----------------------------------------------------------------------]]
+
+  function luaY:log(msg)
+    local log = top_fs.log
+    if not log then log = {}; top_fs.log = log end
+    table.insert(top_fs.log, msg)
+  end
+
+--[[--------------------------------------------------------------------
+-- support functions
+----------------------------------------------------------------------]]
+
+  --------------------------------------------------------------------
+  -- reads in next token
+  --------------------------------------------------------------------
+  function luaY:next()
+    lastln = luaX.ln
+    if peek_tok then  -- is there a look-ahead token? if yes, use it
+      tok, seminfo = peek_tok, peek_sem
+      peek_tok = nil
+    else
+      tok, seminfo = luaX:lex()  -- read next token
+    end
+  end
+  --------------------------------------------------------------------
+  -- peek at next token (single lookahead for table constructor)
+  --------------------------------------------------------------------
+  function luaY:lookahead()
+    peek_tok, peek_sem = luaX:lex()
+    return peek_tok
+  end
+
+  ------------------------------------------------------------------------
+  -- throws a syntax error
+  ------------------------------------------------------------------------
+  function luaY:syntaxerror(msg)
+    local tok = tok
+    if tok ~= "<number>" and tok ~= "<string>" then
+      if tok == "<name>" then tok = seminfo end
+      tok = "'"..tok.."'"
+    end
+    luaX:errorline(msg.." near "..tok)
+  end
+  --------------------------------------------------------------------
+  -- throws a syntax error if token expected is not there
+  --------------------------------------------------------------------
+  function luaY:error_expected(token)
+    self:syntaxerror("'"..token.."' expected")
+  end
+
+  --------------------------------------------------------------------
+  -- verifies token conditions are met or else throw error
+  --------------------------------------------------------------------
+  function luaY:check_match(what, who, where)
+    if not self:testnext(what) then
+      if where == luaX.ln then
+        self:error_expected(what)
+      else
+        self:syntaxerror("'"..what.."' expected (to close '"..who.."' at line "..where..")")
+      end
+    end
+  end
+  --------------------------------------------------------------------
+  -- tests for a token, returns outcome
+  -- * return value changed to boolean
+  --------------------------------------------------------------------
+  function luaY:testnext(c)
+    if tok == c then self:next(); return true end
+  end
+  --------------------------------------------------------------------
+  -- throws error if condition not matched
+  --------------------------------------------------------------------
+  function luaY:check_condition(c, msg)
+    if not c then self:syntaxerror(msg) end
+  end
+  --------------------------------------------------------------------
+  -- check for existence of a token, throws error if not found
+  --------------------------------------------------------------------
+  function luaY:check(c)
+    if not self:testnext(c) then self:error_expected(c) end
+  end
+
+  --------------------------------------------------------------------
+  -- expect that token is a name, return the name
+  --------------------------------------------------------------------
+  function luaY:str_checkname()
+    self:check_condition(tok == "<name>", "<name> expected")
+    local ts = seminfo
+    self:next()
+    self:log("    str_checkname: '"..ts.."'")
+    return ts
+  end
+  --------------------------------------------------------------------
+  -- adds given string s in string pool, sets e as VK
+  --------------------------------------------------------------------
+  function luaY:codestring(e, s)
+    e.k = "VK"
+    self:log("    codestring: "..string.format("%q", s))
+  end
+  --------------------------------------------------------------------
+  -- consume a name token, adds it to string pool
+  --------------------------------------------------------------------
+  function luaY:checkname(e)
+    self:log("    checkname:")
+    self:codestring(e, self:str_checkname())
+  end
+
+--[[--------------------------------------------------------------------
+-- state management functions with open/close pairs
+----------------------------------------------------------------------]]
+
+  --------------------------------------------------------------------
+  -- enters a code unit, initializes elements
+  --------------------------------------------------------------------
+  function luaY:enterblock(isbreakable)
+    local bl = {}  -- per-block state
+    bl.isbreakable = isbreakable
+    bl.prev = fs.bl
+    fs.bl = bl
+    self:log(">> enterblock(isbreakable="..tostring(isbreakable)..")")
+  end
+  --------------------------------------------------------------------
+  -- leaves a code unit, close any upvalues
+  --------------------------------------------------------------------
+  function luaY:leaveblock()
+    local bl = fs.bl
+    fs.bl = bl.prev
+    self:log("<< leaveblock")
+  end
+  --------------------------------------------------------------------
+  -- opening of a function
+  --------------------------------------------------------------------
+  function luaY:open_func()
+    local new_fs  -- per-function state
+    if not fs then  -- top_fs is created early
+      new_fs = top_fs
+    else
+      new_fs = {}
+    end
+    new_fs.prev = fs  -- linked list of function states
+    new_fs.bl = nil
+    fs = new_fs
+    self:log(">> open_func")
+  end
+  --------------------------------------------------------------------
+  -- closing of a function
+  --------------------------------------------------------------------
+  function luaY:close_func()
+    fs = fs.prev
+    self:log("<< close_func")
+  end
+
+--[[--------------------------------------------------------------------
+-- variable (global|local|upvalue) handling
+-- * does nothing for now, always returns "VLOCAL"
+----------------------------------------------------------------------]]
+
+  --------------------------------------------------------------------
+  -- consume a name token, creates a variable (global|local|upvalue)
+  -- * used in prefixexp(), funcname()
+  --------------------------------------------------------------------
+  function luaY:singlevar(v)
+    local varname = self:str_checkname()
+    v.k = "VLOCAL"
+    self:log("    singlevar: name='"..varname.."'")
+  end
+
+--[[--------------------------------------------------------------------
+-- other parsing functions
+-- * for table constructor, parameter list, argument list
+----------------------------------------------------------------------]]
+
+  --------------------------------------------------------------------
+  -- parse a function name suffix, for function call specifications
+  -- * used in primaryexp(), funcname()
+  --------------------------------------------------------------------
+  function luaY:field(v)
+    -- field -> ['.' | ':'] NAME
+    local key = {}
+    self:log("  field: operator="..tok)
+    self:next()  -- skip the dot or colon
+    self:checkname(key)
+    v.k = "VINDEXED"
+  end
+  --------------------------------------------------------------------
+  -- parse a table indexing suffix, for constructors, expressions
+  -- * used in recfield(), primaryexp()
+  --------------------------------------------------------------------
+  function luaY:index(v)
+    -- index -> '[' expr ']'
+    self:log(">> index: begin '['")
+    self:next()  -- skip the '['
+    self:expr(v)
+    self:check("]")
+    self:log("<< index: end ']'")
+  end
+  --------------------------------------------------------------------
+  -- parse a table record (hash) field
+  -- * used in constructor()
+  --------------------------------------------------------------------
+  function luaY:recfield(cc)
+    -- recfield -> (NAME | '['exp1']') = exp1
+    local key, val = {}, {}
+    if tok == "<name>" then
+      self:log("recfield: name")
+      self:checkname(key)
+    else-- tok == '['
+      self:log("recfield: [ exp1 ]")
+      self:index(key)
+    end
+    self:check("=")
+    self:expr(val)
+  end
+  --------------------------------------------------------------------
+  -- emit a set list instruction if enough elements (LFIELDS_PER_FLUSH)
+  -- * note: retained in this skeleton because it modifies cc.v.k
+  -- * used in constructor()
+  --------------------------------------------------------------------
+  function luaY:closelistfield(cc)
+    if cc.v.k == "VVOID" then return end  -- there is no list item
+    cc.v.k = "VVOID"
+  end
+  --------------------------------------------------------------------
+  -- parse a table list (array) field
+  -- * used in constructor()
+  --------------------------------------------------------------------
+  function luaY:listfield(cc)
+    self:log("listfield: expr")
+    self:expr(cc.v)
+  end
+  --------------------------------------------------------------------
+  -- parse a table constructor
+  -- * used in funcargs(), simpleexp()
+  --------------------------------------------------------------------
+  function luaY:constructor(t)
+    -- constructor -> '{' [ field { fieldsep field } [ fieldsep ] ] '}'
+    -- field -> recfield | listfield
+    -- fieldsep -> ',' | ';'
+    self:log(">> constructor: begin")
+    local line = luaX.ln
+    local cc = {}
+    cc.v = {}
+    cc.t = t
+    t.k = "VRELOCABLE"
+    cc.v.k = "VVOID"
+    self:check("{")
+    repeat
+      self:testnext(";")  -- compatibility only
+      if tok == "}" then break end
+      -- closelistfield(cc) here
+      local c = tok
+      if c == "<name>" then  -- may be listfields or recfields
+        if self:lookahead() ~= "=" then  -- look ahead: expression?
+          self:listfield(cc)
+        else
+          self:recfield(cc)
+        end
+      elseif c == "[" then  -- constructor_item -> recfield
+        self:recfield(cc)
+      else  -- constructor_part -> listfield
+        self:listfield(cc)
+      end
+    until not self:testnext(",") and not self:testnext(";")
+    self:check_match("}", "{", line)
+    -- lastlistfield(cc) here
+    self:log("<< constructor: end")
+  end
+  --------------------------------------------------------------------
+  -- parse the arguments (parameters) of a function declaration
+  -- * used in body()
+  --------------------------------------------------------------------
+  function luaY:parlist()
+    -- parlist -> [ param { ',' param } ]
+    self:log(">> parlist: begin")
+    local dots = false
+    if tok ~= ")" then  -- is 'parlist' not empty?
+      repeat
+        local c = tok
+        if c == "..." then
+          self:log("parlist: ... (dots)")
+          dots = true
+          self:next()
+        elseif c == "<name>" then
+          local str = self:str_checkname()
+        else
+          self:syntaxerror("<name> or '...' expected")
+        end
+      until dots or not self:testnext(",")
+    end
+    self:log("<< parlist: end")
+  end
+  --------------------------------------------------------------------
+  -- parse the parameters of a function call
+  -- * contrast with parlist(), used in function declarations
+  -- * used in primaryexp()
+  --------------------------------------------------------------------
+  function luaY:funcargs(f)
+    local args = {}
+    local line = luaX.ln
+    local c = tok
+    if c == "(" then  -- funcargs -> '(' [ explist1 ] ')'
+      self:log(">> funcargs: begin '('")
+      if line ~= lastln then
+        self:syntaxerror("ambiguous syntax (function call x new statement)")
+      end
+      self:next()
+      if tok == ")" then  -- arg list is empty?
+        args.k = "VVOID"
+      else
+        self:explist1(args)
+      end
+      self:check_match(")", "(", line)
+    elseif c == "{" then  -- funcargs -> constructor
+      self:log(">> funcargs: begin '{'")
+      self:constructor(args)
+    elseif c == "<string>" then  -- funcargs -> STRING
+      self:log(">> funcargs: begin <string>")
+      self:codestring(args, seminfo)
+      self:next()  -- must use 'seminfo' before 'next'
+    else
+      self:syntaxerror("function arguments expected")
+      return
+    end--if c
+    f.k = "VCALL"
+    self:log("<< funcargs: end -- expr is a VCALL")
+  end
+
+--[[--------------------------------------------------------------------
+-- mostly expression functions
+----------------------------------------------------------------------]]
+
+  --------------------------------------------------------------------
+  -- parses an expression in parentheses or a single variable
+  -- * used in primaryexp()
+  --------------------------------------------------------------------
+  function luaY:prefixexp(v)
+    -- prefixexp -> NAME | '(' expr ')'
+    local c = tok
+    if c == "(" then
+      self:log(">> prefixexp: begin ( expr ) ")
+      local line = self.ln
+      self:next()
+      self:expr(v)
+      self:check_match(")", "(", line)
+      self:log("<< prefixexp: end ( expr ) ")
+    elseif c == "<name>" then
+      self:log("prefixexp: <name>")
+      self:singlevar(v)
+    else
+      self:syntaxerror("unexpected symbol")
+    end--if c
+  end
+  --------------------------------------------------------------------
+  -- parses a prefixexp (an expression in parentheses or a single
+  -- variable) or a function call specification
+  -- * used in simpleexp(), assignment(), expr_stat()
+  --------------------------------------------------------------------
+  function luaY:primaryexp(v)
+    -- primaryexp ->
+    --    prefixexp { '.' NAME | '[' exp ']' | ':' NAME funcargs | funcargs }
+    self:prefixexp(v)
+    while true do
+      local c = tok
+      if c == "." then  -- field
+        self:log("primaryexp: '.' field")
+        self:field(v)
+      elseif c == "[" then  -- '[' exp1 ']'
+        self:log("primaryexp: [ exp1 ]")
+        local key = {}
+        self:index(key)
+      elseif c == ":" then  -- ':' NAME funcargs
+        self:log("primaryexp: :<name> funcargs")
+        local key = {}
+        self:next()
+        self:checkname(key)
+        self:funcargs(v)
+      elseif c == "(" or c == "<string>" or c == "{" then  -- funcargs
+        self:log("primaryexp: "..c.." funcargs")
+        self:funcargs(v)
+      else
+        return
+      end--if c
+    end--while
+  end
+  --------------------------------------------------------------------
+  -- parses general expression types, constants handled here
+  -- * used in subexpr()
+  --------------------------------------------------------------------
+  function luaY:simpleexp(v)
+    -- simpleexp -> NUMBER | STRING | NIL | TRUE | FALSE | constructor
+    --           | FUNCTION body | primaryexp
+    local c = tok
+    if c == "<number>" then
+      self:log("simpleexp: <number>="..seminfo)
+      v.k = "VK"
+      self:next()  -- must use 'seminfo' before 'next'
+    elseif c == "<string>" then
+      self:log("simpleexp: <string>="..seminfo)
+      self:codestring(v, seminfo)
+      self:next()  -- must use 'seminfo' before 'next'
+    elseif c == "nil" then
+      self:log("simpleexp: nil")
+      v.k = "VNIL"
+      self:next()
+    elseif c == "true" then
+      self:log("simpleexp: true")
+      v.k = "VTRUE"
+      self:next()
+    elseif c == "false" then
+      self:log("simpleexp: false")
+      v.k = "VFALSE"
+      self:next()
+    elseif c == "{" then  -- constructor
+      self:log("simpleexp: constructor")
+      self:constructor(v)
+    elseif c == "function" then
+      self:log("simpleexp: function")
+      self:next()
+      self:body(v, false, luaX.ln)
+    else
+      self:primaryexp(v)
+    end--if c
+  end
+  ------------------------------------------------------------------------
+  -- Parse subexpressions. Includes handling of unary operators and binary
+  -- operators. A subexpr is given the rhs priority level of the operator
+  -- immediately left of it, if any (limit is -1 if none,) and if a binop
+  -- is found, limit is compared with the lhs priority level of the binop
+  -- in order to determine which executes first.
+  -- * recursively called
+  -- * used in expr()
+  ------------------------------------------------------------------------
+  function luaY:subexpr(v, limit)
+    -- subexpr -> (simpleexp | unop subexpr) { binop subexpr }
+    --   * where 'binop' is any binary operator with a priority
+    --     higher than 'limit'
+    local op = tok
+    local uop = unopr[op]
+    if uop then
+      self:log("  subexpr: uop='"..op.."'")
+      self:next()
+      self:subexpr(v, 8) -- UNARY_PRIORITY
+    else
+      self:simpleexp(v)
+    end
+    -- expand while operators have priorities higher than 'limit'
+    op = tok
+    local binop = binopr_left[op]
+    while binop and binop > limit do
+      local v2 = {}
+      self:log(">> subexpr: binop='"..op.."'")
+      self:next()
+      -- read sub-expression with higher priority
+      local nextop = self:subexpr(v2, binopr_right[op])
+      self:log("<< subexpr: -- evaluate")
+      op = nextop
+      binop = binopr_left[op]
+    end
+    return op  -- return first untreated operator
+  end
+  --------------------------------------------------------------------
+  -- Expression parsing starts here. Function subexpr is entered with the
+  -- left operator (which is non-existent) priority of -1, which is lower
+  -- than all actual operators. Expr information is returned in parm v.
+  -- * used in cond(), explist1(), index(), recfield(), listfield(),
+  --   prefixexp(), while_stat(), exp1()
+  --------------------------------------------------------------------
+  function luaY:expr(v)
+    -- expr -> subexpr
+    self:log("expr:")
+    self:subexpr(v, -1)
+  end
+
+--[[--------------------------------------------------------------------
+-- third level parsing functions
+----------------------------------------------------------------------]]
+
+  --------------------------------------------------------------------
+  -- parse a variable assignment sequence
+  -- * recursively called
+  -- * used in expr_stat()
+  --------------------------------------------------------------------
+  function luaY:assignment(v)
+    local e = {}
+    local c = v.v.k
+    self:check_condition(c == "VLOCAL" or c == "VUPVAL" or c == "VGLOBAL"
+                         or c == "VINDEXED", "syntax error")
+    if self:testnext(",") then  -- assignment -> ',' primaryexp assignment
+      local nv = {}  -- expdesc
+      nv.v = {}
+      self:log("assignment: ',' -- next LHS element")
+      self:primaryexp(nv.v)
+      -- lparser.c deals with some register usage conflict here
+      self:assignment(nv)
+    else  -- assignment -> '=' explist1
+      self:check("=")
+      self:log("assignment: '=' -- RHS elements follows")
+      self:explist1(e)
+      return  -- avoid default
+    end
+    e.k = "VNONRELOC"
+  end
+  --------------------------------------------------------------------
+  -- parse a for loop body for both versions of the for loop
+  -- * used in fornum(), forlist()
+  --------------------------------------------------------------------
+  function luaY:forbody(line, isnum)
+    self:check("do")
+    self:enterblock(true)  -- loop block
+    self:block()
+    self:leaveblock()
+  end
+  --------------------------------------------------------------------
+  -- parse a numerical for loop, calls forbody()
+  -- * used in for_stat()
+  --------------------------------------------------------------------
+  function luaY:fornum(line)
+    -- fornum -> NAME = exp1, exp1 [, exp1] DO body
+    self:log(">> fornum: begin")
+    self:check("=")
+    self:log("fornum: index start")
+    self:exp1()  -- initial value
+    self:check(",")
+    self:log("fornum: index stop")
+    self:exp1()  -- limit
+    if self:testnext(",") then
+      self:log("fornum: index step")
+      self:exp1()  -- optional step
+    else
+      -- default step = 1
+    end
+    self:log("fornum: body")
+    self:forbody(line, true)
+    self:log("<< fornum: end")
+  end
+  --------------------------------------------------------------------
+  -- parse a generic for loop, calls forbody()
+  -- * used in for_stat()
+  --------------------------------------------------------------------
+  function luaY:forlist()
+    -- forlist -> NAME {, NAME} IN explist1 DO body
+    self:log(">> forlist: begin")
+    local e = {}
+    while self:testnext(",") do
+      self:str_checkname()
+    end
+    self:check("in")
+    local line = line
+    self:log("forlist: explist1")
+    self:explist1(e)
+    self:log("forlist: body")
+    self:forbody(line, false)
+    self:log("<< forlist: end")
+  end
+  --------------------------------------------------------------------
+  -- parse a function name specification
+  -- * used in func_stat()
+  --------------------------------------------------------------------
+  function luaY:funcname(v)
+    -- funcname -> NAME {field} [':' NAME]
+    self:log(">> funcname: begin")
+    local needself = false
+    self:singlevar(v)
+    while tok == "." do
+      self:log("funcname: -- '.' field")
+      self:field(v)
+    end
+    if tok == ":" then
+      self:log("funcname: -- ':' field")
+      needself = true
+      self:field(v)
+    end
+    self:log("<< funcname: end")
+    return needself
+  end
+  --------------------------------------------------------------------
+  -- parse the single expressions needed in numerical for loops
+  -- * used in fornum()
+  --------------------------------------------------------------------
+  function luaY:exp1()
+    -- exp1 -> expr
+    local e = {}
+    self:log(">> exp1: begin")
+    self:expr(e)
+    self:log("<< exp1: end")
+  end
+  --------------------------------------------------------------------
+  -- parse condition in a repeat statement or an if control structure
+  -- * used in repeat_stat(), test_then_block()
+  --------------------------------------------------------------------
+  function luaY:cond(v)
+    -- cond -> expr
+    self:log(">> cond: begin")
+    self:expr(v)  -- read condition
+    self:log("<< cond: end")
+  end
+  --------------------------------------------------------------------
+  -- parse part of an if control structure, including the condition
+  -- * used in if_stat()
+  --------------------------------------------------------------------
+  function luaY:test_then_block(v)
+    -- test_then_block -> [IF | ELSEIF] cond THEN block
+    self:next()  -- skip IF or ELSEIF
+    self:log("test_then_block: test condition")
+    self:cond(v)
+    self:check("then")
+    self:log("test_then_block: then block")
+    self:block()  -- 'then' part
+  end
+  --------------------------------------------------------------------
+  -- parse a local function statement
+  -- * used in local_stat()
+  --------------------------------------------------------------------
+  function luaY:localfunc()
+    -- localfunc -> NAME body
+    local v, b = {}
+    self:log("localfunc: begin")
+    local str = self:str_checkname()
+    v.k = "VLOCAL"
+    self:log("localfunc: body")
+    self:body(b, false, luaX.ln)
+    self:log("localfunc: end")
+  end
+  --------------------------------------------------------------------
+  -- parse a local variable declaration statement
+  -- * used in local_stat()
+  --------------------------------------------------------------------
+  function luaY:localstat()
+    -- localstat -> NAME {',' NAME} ['=' explist1]
+    self:log(">> localstat: begin")
+    local e = {}
+    repeat
+      local str = self:str_checkname()
+    until not self:testnext(",")
+    if self:testnext("=") then
+      self:log("localstat: -- assignment")
+      self:explist1(e)
+    else
+      e.k = "VVOID"
+    end
+    self:log("<< localstat: end")
+  end
+  --------------------------------------------------------------------
+  -- parse a list of comma-separated expressions
+  -- * used in return_stat(), localstat(), funcargs(), assignment(),
+  --   forlist()
+  --------------------------------------------------------------------
+  function luaY:explist1(e)
+    -- explist1 -> expr { ',' expr }
+    self:log(">> explist1: begin")
+    self:expr(e)
+    while self:testnext(",") do
+      self:log("explist1: ',' -- continuation")
+      self:expr(e)
+    end
+    self:log("<< explist1: end")
+  end
+  --------------------------------------------------------------------
+  -- parse function declaration body
+  -- * used in simpleexp(), localfunc(), func_stat()
+  --------------------------------------------------------------------
+  function luaY:body(e, needself, line)
+    -- body ->  '(' parlist ')' chunk END
+    self:open_func()
+    self:log("body: begin")
+    self:check("(")
+    if needself then
+      -- handle 'self' processing here
+    end
+    self:log("body: parlist")
+    self:parlist()
+    self:check(")")
+    self:log("body: chunk")
+    self:chunk()
+    self:check_match("end", "function", line)
+    self:log("body: end")
+    self:close_func()
+  end
+  --------------------------------------------------------------------
+  -- parse a code block or unit
+  -- * used in do_stat(), while_stat(), repeat_stat(), forbody(),
+  --   test_then_block(), if_stat()
+  --------------------------------------------------------------------
+  function luaY:block()
+    -- block -> chunk
+    self:log("block: begin")
+    self:enterblock(false)
+    self:chunk()
+    self:leaveblock()
+    self:log("block: end")
+  end
+
+--[[--------------------------------------------------------------------
+-- second level parsing functions, all with '_stat' suffix
+-- * stat() -> *_stat()
+----------------------------------------------------------------------]]
+
+  --------------------------------------------------------------------
+  -- initial parsing for a for loop, calls fornum() or forlist()
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:for_stat()
+    -- stat -> for_stat -> fornum | forlist
+    local line = line
+    self:log("for_stat: begin")
+    self:enterblock(false)  -- block to control variable scope
+    self:next()  -- skip 'for'
+    local str = self:str_checkname()  -- first variable name
+    local c = tok
+    if c == "=" then
+      self:log("for_stat: numerical loop")
+      self:fornum(line)
+    elseif c == "," or c == "in" then
+      self:log("for_stat: list-based loop")
+      self:forlist()
+    else
+      self:syntaxerror("'=' or 'in' expected")
+    end
+    self:check_match("end", "for", line)
+    self:leaveblock()
+    self:log("for_stat: end")
+  end
+  --------------------------------------------------------------------
+  -- parse a while-do control structure, body processed by block()
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:while_stat()
+    -- stat -> while_stat -> WHILE cond DO block END
+    local line = line
+    local v = {}
+    self:next()  -- skip WHILE
+    self:log("while_stat: begin/condition")
+    self:expr(v)  -- parse condition
+    self:enterblock(true)
+    self:check("do")
+    self:log("while_stat: block")
+    self:block()
+    self:check_match("end", "while", line)
+    self:leaveblock()
+    self:log("while_stat: end")
+  end
+  --------------------------------------------------------------------
+  -- parse a repeat-until control structure, body parsed by block()
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:repeat_stat()
+    -- stat -> repeat_stat -> REPEAT block UNTIL cond
+    local line = line
+    local v = {}
+    self:log("repeat_stat: begin")
+    self:enterblock(true)
+    self:next()
+    self:block()
+    self:check_match("until", "repeat", line)
+    self:log("repeat_stat: condition")
+    self:cond(v)
+    self:leaveblock()
+    self:log("repeat_stat: end")
+  end
+  --------------------------------------------------------------------
+  -- parse an if control structure
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:if_stat()
+    -- stat -> if_stat -> IF cond THEN block
+    --                    {ELSEIF cond THEN block} [ELSE block] END
+    local line = line
+    local v = {}
+    self:log("if_stat: if...then")
+    self:test_then_block(v)  -- IF cond THEN block
+    while tok == "elseif" do
+      self:log("if_stat: elseif...then")
+      self:test_then_block(v)  -- ELSEIF cond THEN block
+    end
+    if tok == "else" then
+      self:log("if_stat: else...")
+      self:next()  -- skip ELSE
+      self:block()  -- 'else' part
+    end
+    self:check_match("end", "if", line)
+    self:log("if_stat: end")
+  end
+  --------------------------------------------------------------------
+  -- parse a return statement
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:return_stat()
+    -- stat -> return_stat -> RETURN explist
+    local e = {}
+    self:next()  -- skip RETURN
+    local c = tok
+    if block_follow[c] or c == ";" then
+      -- return no values
+      self:log("return_stat: no return values")
+    else
+      self:log("return_stat: begin")
+      self:explist1(e)  -- optional return values
+      self:log("return_stat: end")
+    end
+  end
+  --------------------------------------------------------------------
+  -- parse a break statement
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:break_stat()
+    -- stat -> break_stat -> BREAK
+    local bl = fs.bl
+    self:next()  -- skip BREAK
+    while bl and not bl.isbreakable do -- find a breakable block
+      bl = bl.prev
+    end
+    if not bl then
+      self:syntaxerror("no loop to break")
+    end
+    self:log("break_stat: -- break out of loop")
+  end
+  --------------------------------------------------------------------
+  -- parse a function call with no returns or an assignment statement
+  -- * the struct with .prev is used for name searching in lparse.c,
+  --   so it is retained for now; present in assignment() also
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:expr_stat()
+    -- stat -> expr_stat -> func | assignment
+    local v = {}
+    v.v = {}
+    self:primaryexp(v.v)
+    if v.v.k == "VCALL" then  -- stat -> func
+      -- call statement uses no results
+      self:log("expr_stat: function call k='"..v.v.k.."'")
+    else  -- stat -> assignment
+      self:log("expr_stat: assignment k='"..v.v.k.."'")
+      v.prev = nil
+      self:assignment(v)
+    end
+  end
+  --------------------------------------------------------------------
+  -- parse a function statement
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:function_stat()
+    -- stat -> function_stat -> FUNCTION funcname body
+    local line = line
+    local v, b = {}, {}
+    self:log("function_stat: begin")
+    self:next()  -- skip FUNCTION
+    local needself = self:funcname(v)
+    self:log("function_stat: body needself='"..tostring(needself).."'")
+    self:body(b, needself, line)
+    self:log("function_stat: end")
+  end
+  --------------------------------------------------------------------
+  -- parse a simple block enclosed by a DO..END pair
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:do_stat()
+    -- stat -> do_stat -> DO block END
+    self:next()  -- skip DO
+    self:log("do_stat: begin")
+    self:block()
+    self:log("do_stat: end")
+    self:check_match("end", "do", line)
+  end
+  --------------------------------------------------------------------
+  -- parse a statement starting with LOCAL
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:local_stat()
+    -- stat -> local_stat -> LOCAL FUNCTION localfunc
+    --                    -> LOCAL localstat
+    self:next()  -- skip LOCAL
+    if self:testnext("function") then  -- local function?
+      self:log("local_stat: local function")
+      self:localfunc()
+    else
+      self:log("local_stat: local statement")
+      self:localstat()
+    end
+  end
+
+--[[--------------------------------------------------------------------
+-- main function, top level parsing functions
+-- * [entry] -> parser() -> chunk() -> stat()
+----------------------------------------------------------------------]]
+
+  --------------------------------------------------------------------
+  -- initial parsing for statements, calls '_stat' suffixed functions
+  -- * used in chunk()
+  --------------------------------------------------------------------
+  function luaY:stat()
+    line = luaX.ln
+    local c = tok
+    local fn = stat_call[c]
+    -- handles: if while do for repeat function local return break
+    if fn then
+      self:log("-- STATEMENT: begin '"..c.."' line="..line)
+      self[fn](self)
+      self:log("-- STATEMENT: end '"..c.."'")
+      -- return or break must be last statement
+      if c == "return" or c == "break" then return true end
+    else
+      self:log("-- STATEMENT: begin 'expr' line="..line)
+      self:expr_stat()
+      self:log("-- STATEMENT: end 'expr'")
+    end
+    self:log("")
+    return false
+  end
+  --------------------------------------------------------------------
+  -- parse a chunk, which consists of a bunch of statements
+  -- * used in parser(), body(), block()
+  --------------------------------------------------------------------
+  function luaY:chunk()
+    -- chunk -> { stat [';'] }
+    self:log("chunk:")
+    local islast = false
+    while not islast and not block_follow[tok] do
+      islast = self:stat()
+      self:testnext(";")
+    end
+  end
+  --------------------------------------------------------------------
+  -- performs parsing, returns parsed data structure
+  --------------------------------------------------------------------
+  function luaY:parser()
+    self:log("-- TOP: begin")
+    self:open_func()
+    self:log("")
+    self:next()  -- read first token
+    self:chunk()
+    self:check_condition(tok == "<eof>", "<eof> expected")
+    self:close_func()
+    self:log("-- TOP: end")
+    return top_fs
+  end
+  --------------------------------------------------------------------
+  return luaY -- return actual module to user, done
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/lparser_mk3b.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/lparser_mk3b.lua
new file mode 100644
index 0000000..a46edc6
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/lparser_mk3b.lua
@@ -0,0 +1,1121 @@
+--[[--------------------------------------------------------------------
+
+  lparser.lua
+  Lua 5 parser in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2008 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * this is a Lua 5.0.x parser skeleton, for llex_mk3.lua lexer
+-- * written as a module factory with recognizable lparser.c roots
+-- * builds some data, performs logging for educational purposes
+-- * target is to have relatively efficient and clear code
+-- * needs one parameter, a lexer module that implements:
+--     luaX:lex() - returns appropriate [token, semantic info] pairs
+--     luaX.ln - current line number
+--     luaX:errorline(s, [line]) - dies with error message
+--
+-- Usage example:
+--   lex_init = require("llex_mk3.lua")
+--   parser_init = require("lparser_mk3.lua")
+--   local luaX = lex_init(chunk, "=string")
+--   local luaY = parser_init(luaX)
+--   local fs = luaY:parser()
+--
+-- Development notes:
+-- * see test_parser-5.0.lua for grammar elements based on lparser.c
+-- * lparser has a few extra items to help parsing/syntax checking
+--   (a) line number (error reporting), lookahead token storage
+--   (b) per-prototype states needs a storage list
+--   (c) 'break' needs a per-block flag in a stack
+--   (d) 'kind' (v.k) testing needed in expr_stat() and assignment()
+--       for disambiguation, thus v.k manipulation is retained
+--   (e) one line # var (lastln) for ambiguous (split line) function
+--       call checking
+--   (f) most line number function call args retained for future use
+--   (g) Lua 4 compatibility code completely removed
+--   (h) minimal variable management code to differentiate each type
+-- * parsing starts from the end of this file in luaY:parser()
+--
+----------------------------------------------------------------------]]
+
+return
+function(luaX)
+--[[--------------------------------------------------------------------
+-- structures and data initialization
+----------------------------------------------------------------------]]
+
+  local line                    -- start line # for error messages
+  local lastln                  -- last line # for ambiguous syntax chk
+  local tok, seminfo            -- token, semantic info pair
+  local peek_tok, peek_sem      -- ditto, for lookahead
+  local fs                      -- function state
+  local top_fs = {}             -- top-level function state
+  local luaY = {}
+  --------------------------------------------------------------------
+  local block_follow = {}       -- lookahead check in chunk(), returnstat()
+  for v in string.gfind("else elseif end until <eof>", "%S+") do
+    block_follow[v] = true
+  end
+  --------------------------------------------------------------------
+  local stat_call = {}          -- lookup for calls in stat()
+  for v in string.gfind("if while do for repeat function local return break", "%S+") do
+    stat_call[v] = v.."_stat"
+  end
+  --------------------------------------------------------------------
+  local binopr_left = {}        -- binary operators, left priority
+  local binopr_right = {}       -- binary operators, right priority
+  for op, lt, rt in string.gfind([[
+{+ 6 6}{- 6 6}{* 7 7}{/ 7 7}{^ 10 9}{.. 5 4}
+{~= 3 3}{== 3 3}{< 3 3}{<= 3 3}{> 3 3}{>= 3 3}
+{and 2 2}{or 1 1}
+]], "{(%S+)%s(%d+)%s(%d+)}") do
+    binopr_left[op] = lt + 0
+    binopr_right[op] = rt + 0
+  end
+  local unopr = { ["not"] = true, ["-"] = true, }  -- unary operators
+
+--[[--------------------------------------------------------------------
+-- logging: this logging function is for educational purposes
+-- * logged data can be retrieved from the returned data structure
+-- * or, replace self:log() instances with your custom code...
+----------------------------------------------------------------------]]
+
+  function luaY:log(msg)
+    local log = top_fs.log
+    if not log then log = {}; top_fs.log = log end
+    table.insert(top_fs.log, msg)
+  end
+
+--[[--------------------------------------------------------------------
+-- support functions
+----------------------------------------------------------------------]]
+
+  --------------------------------------------------------------------
+  -- reads in next token
+  --------------------------------------------------------------------
+  function luaY:next()
+    lastln = luaX.ln
+    if peek_tok then  -- is there a look-ahead token? if yes, use it
+      tok, seminfo = peek_tok, peek_sem
+      peek_tok = nil
+    else
+      tok, seminfo = luaX:lex()  -- read next token
+    end
+  end
+  --------------------------------------------------------------------
+  -- peek at next token (single lookahead for table constructor)
+  --------------------------------------------------------------------
+  function luaY:lookahead()
+    peek_tok, peek_sem = luaX:lex()
+    return peek_tok
+  end
+
+  ------------------------------------------------------------------------
+  -- throws a syntax error
+  ------------------------------------------------------------------------
+  function luaY:syntaxerror(msg)
+    local tok = tok
+    if tok ~= "<number>" and tok ~= "<string>" then
+      if tok == "<name>" then tok = seminfo end
+      tok = "'"..tok.."'"
+    end
+    luaX:errorline(msg.." near "..tok)
+  end
+  --------------------------------------------------------------------
+  -- throws a syntax error if token expected is not there
+  --------------------------------------------------------------------
+  function luaY:error_expected(token)
+    self:syntaxerror("'"..token.."' expected")
+  end
+
+  --------------------------------------------------------------------
+  -- verifies token conditions are met or else throw error
+  --------------------------------------------------------------------
+  function luaY:check_match(what, who, where)
+    if not self:testnext(what) then
+      if where == luaX.ln then
+        self:error_expected(what)
+      else
+        self:syntaxerror("'"..what.."' expected (to close '"..who.."' at line "..where..")")
+      end
+    end
+  end
+  --------------------------------------------------------------------
+  -- tests for a token, returns outcome
+  -- * return value changed to boolean
+  --------------------------------------------------------------------
+  function luaY:testnext(c)
+    if tok == c then self:next(); return true end
+  end
+  --------------------------------------------------------------------
+  -- throws error if condition not matched
+  --------------------------------------------------------------------
+  function luaY:check_condition(c, msg)
+    if not c then self:syntaxerror(msg) end
+  end
+  --------------------------------------------------------------------
+  -- check for existence of a token, throws error if not found
+  --------------------------------------------------------------------
+  function luaY:check(c)
+    if not self:testnext(c) then self:error_expected(c) end
+  end
+
+  --------------------------------------------------------------------
+  -- expect that token is a name, return the name
+  --------------------------------------------------------------------
+  function luaY:str_checkname()
+    self:check_condition(tok == "<name>", "<name> expected")
+    local ts = seminfo
+    self:next()
+    self:log("    str_checkname: '"..ts.."'")
+    return ts
+  end
+  --------------------------------------------------------------------
+  -- adds given string s in string pool, sets e as VK
+  --------------------------------------------------------------------
+  function luaY:codestring(e, s)
+    e.k = "VK"
+    self:log("    codestring: "..string.format("%q", s))
+  end
+  --------------------------------------------------------------------
+  -- consume a name token, adds it to string pool
+  --------------------------------------------------------------------
+  function luaY:checkname(e)
+    self:log("    checkname:")
+    self:codestring(e, self:str_checkname())
+  end
+
+--[[--------------------------------------------------------------------
+-- state management functions with open/close pairs
+----------------------------------------------------------------------]]
+
+  --------------------------------------------------------------------
+  -- enters a code unit, initializes elements
+  --------------------------------------------------------------------
+  function luaY:enterblock(isbreakable)
+    local bl = {}  -- per-block state
+    bl.isbreakable = isbreakable
+    bl.prev = fs.bl
+    bl.locallist = {}
+    fs.bl = bl
+    self:log(">> enterblock(isbreakable="..tostring(isbreakable)..")")
+  end
+  --------------------------------------------------------------------
+  -- leaves a code unit, close any upvalues
+  --------------------------------------------------------------------
+  function luaY:leaveblock()
+    local bl = fs.bl
+    fs.bl = bl.prev
+    self:log("<< leaveblock")
+  end
+  --------------------------------------------------------------------
+  -- opening of a function
+  --------------------------------------------------------------------
+  function luaY:open_func()
+    local new_fs  -- per-function state
+    if not fs then  -- top_fs is created early
+      new_fs = top_fs
+    else
+      new_fs = {}
+    end
+    new_fs.prev = fs  -- linked list of function states
+    new_fs.bl = nil
+    new_fs.locallist = {}
+    fs = new_fs
+    self:log(">> open_func")
+  end
+  --------------------------------------------------------------------
+  -- closing of a function
+  --------------------------------------------------------------------
+  function luaY:close_func()
+    fs = fs.prev
+    self:log("<< close_func")
+  end
+
+--[[--------------------------------------------------------------------
+-- variable (global|local|upvalue) handling
+-- * a pure parser does not really need this, but if we want to produce
+--   useful output, might as well write minimal code to manage this...
+-- * entry point is singlevar() for variable lookups
+-- * three entry points for local variable creation, in order to keep
+--   to original C calls, but the extra arguments such as positioning
+--   are removed as we are not allocating registers -- we are only
+--   doing simple classification
+-- * lookup tables (bl.locallist) are maintained awkwardly in the basic
+--   block data structures, PLUS the function data structure (this is
+--   an inelegant hack, since bl is nil for the top level of a function)
+----------------------------------------------------------------------]]
+
+  --------------------------------------------------------------------
+  -- register a local variable, set in active variable list
+  -- * used in new_localvarstr(), parlist(), fornum(), forlist(),
+  --   localfunc(), localstat()
+  --------------------------------------------------------------------
+  function luaY:new_localvar(name)
+    local bl = fs.bl
+    local locallist
+    if bl then
+      locallist = bl.locallist
+    else
+      locallist = fs.locallist
+    end
+    locallist[name] = true
+    self:log("    new_localvar: '"..name.."'")
+  end
+  --------------------------------------------------------------------
+  -- creates a new local variable given a name
+  -- * used in fornum(), forlist() for loop variables; in create_local()
+  --------------------------------------------------------------------
+  function luaY:new_localvarstr(name)
+    self:new_localvar(name)
+  end
+  --------------------------------------------------------------------
+  -- creates a single local variable and activates it
+  -- * used only in code_params() for "arg", body() for "self"
+  --------------------------------------------------------------------
+  function luaY:create_local(name)
+    self:new_localvarstr(name)
+  end
+
+  --------------------------------------------------------------------
+  -- search the local variable namespace of the given fs for a match
+  -- * a simple lookup only, no active variable list kept, so no useful
+  --   index value can be returned by this function
+  -- * used only in singlevaraux()
+  --------------------------------------------------------------------
+  function luaY:searchvar(fs, n)
+    local bl = fs.bl
+    if bl then
+      locallist = bl.locallist
+      while locallist do
+        if locallist[n] then return 1 end  -- found
+        bl = bl.prev
+        locallist = bl and bl.locallist
+      end
+    end
+    locallist = fs.locallist
+    if locallist[n] then return 1 end  -- found
+    return -1  -- not found
+  end
+  --------------------------------------------------------------------
+  -- handle locals, globals and upvalues and related processing
+  -- * search mechanism is recursive, calls itself to search parents
+  -- * used only in singlevar()
+  --------------------------------------------------------------------
+  function luaY:singlevaraux(fs, n, var, base)
+    if fs == nil then  -- no more levels?
+      var.k = "VGLOBAL"  -- default is global variable
+    else
+      local v = self:searchvar(fs, n)  -- look up at current level
+      if v >= 0 then
+        var.k = "VLOCAL"
+      else  -- not found at current level; try upper one
+        self:singlevaraux(fs.prev, n, var, 0)
+        if var.k == "VGLOBAL" then
+          -- handle global var processing here
+        else  -- LOCAL or UPVAL
+          var.k = "VUPVAL"
+        end
+      end--if v
+    end--if fs
+  end
+  --------------------------------------------------------------------
+  -- consume a name token, creates a variable (global|local|upvalue)
+  -- * used in prefixexp(), funcname()
+  --------------------------------------------------------------------
+  function luaY:singlevar(v)
+    local varname = self:str_checkname()
+    self:singlevaraux(fs, varname, v, 1)
+    self:log("    singlevar(kind): '"..v.k.."'")
+  end
+
+--[[--------------------------------------------------------------------
+-- other parsing functions
+-- * for table constructor, parameter list, argument list
+----------------------------------------------------------------------]]
+
+  --------------------------------------------------------------------
+  -- parse a function name suffix, for function call specifications
+  -- * used in primaryexp(), funcname()
+  --------------------------------------------------------------------
+  function luaY:field(v)
+    -- field -> ['.' | ':'] NAME
+    local key = {}
+    self:log("  field: operator="..tok)
+    self:next()  -- skip the dot or colon
+    self:checkname(key)
+    v.k = "VINDEXED"
+  end
+  --------------------------------------------------------------------
+  -- parse a table indexing suffix, for constructors, expressions
+  -- * used in recfield(), primaryexp()
+  --------------------------------------------------------------------
+  function luaY:index(v)
+    -- index -> '[' expr ']'
+    self:log(">> index: begin '['")
+    self:next()  -- skip the '['
+    self:expr(v)
+    self:check("]")
+    self:log("<< index: end ']'")
+  end
+  --------------------------------------------------------------------
+  -- parse a table record (hash) field
+  -- * used in constructor()
+  --------------------------------------------------------------------
+  function luaY:recfield(cc)
+    -- recfield -> (NAME | '['exp1']') = exp1
+    local key, val = {}, {}
+    if tok == "<name>" then
+      self:log("recfield: name")
+      self:checkname(key)
+    else-- tok == '['
+      self:log("recfield: [ exp1 ]")
+      self:index(key)
+    end
+    self:check("=")
+    self:expr(val)
+  end
+  --------------------------------------------------------------------
+  -- emit a set list instruction if enough elements (LFIELDS_PER_FLUSH)
+  -- * note: retained in this skeleton because it modifies cc.v.k
+  -- * used in constructor()
+  --------------------------------------------------------------------
+  function luaY:closelistfield(cc)
+    if cc.v.k == "VVOID" then return end  -- there is no list item
+    cc.v.k = "VVOID"
+  end
+  --------------------------------------------------------------------
+  -- parse a table list (array) field
+  -- * used in constructor()
+  --------------------------------------------------------------------
+  function luaY:listfield(cc)
+    self:log("listfield: expr")
+    self:expr(cc.v)
+  end
+  --------------------------------------------------------------------
+  -- parse a table constructor
+  -- * used in funcargs(), simpleexp()
+  --------------------------------------------------------------------
+  function luaY:constructor(t)
+    -- constructor -> '{' [ field { fieldsep field } [ fieldsep ] ] '}'
+    -- field -> recfield | listfield
+    -- fieldsep -> ',' | ';'
+    self:log(">> constructor: begin")
+    local line = luaX.ln
+    local cc = {}
+    cc.v = {}
+    cc.t = t
+    t.k = "VRELOCABLE"
+    cc.v.k = "VVOID"
+    self:check("{")
+    repeat
+      self:testnext(";")  -- compatibility only
+      if tok == "}" then break end
+      -- closelistfield(cc) here
+      local c = tok
+      if c == "<name>" then  -- may be listfields or recfields
+        if self:lookahead() ~= "=" then  -- look ahead: expression?
+          self:listfield(cc)
+        else
+          self:recfield(cc)
+        end
+      elseif c == "[" then  -- constructor_item -> recfield
+        self:recfield(cc)
+      else  -- constructor_part -> listfield
+        self:listfield(cc)
+      end
+    until not self:testnext(",") and not self:testnext(";")
+    self:check_match("}", "{", line)
+    -- lastlistfield(cc) here
+    self:log("<< constructor: end")
+  end
+  --------------------------------------------------------------------
+  -- parse the arguments (parameters) of a function declaration
+  -- * used in body()
+  --------------------------------------------------------------------
+  function luaY:parlist()
+    -- parlist -> [ param { ',' param } ]
+    self:log(">> parlist: begin")
+    local dots = false
+    if tok ~= ")" then  -- is 'parlist' not empty?
+      repeat
+        local c = tok
+        if c == "..." then
+          self:log("parlist: ... (dots)")
+          dots = true
+          self:next()
+        elseif c == "<name>" then
+          self:new_localvar(self:str_checkname())
+        else
+          self:syntaxerror("<name> or '...' expected")
+        end
+      until dots or not self:testnext(",")
+    end
+    -- was code_params()
+    if dots then
+      self:create_local("arg")
+    end
+    self:log("<< parlist: end")
+  end
+  --------------------------------------------------------------------
+  -- parse the parameters of a function call
+  -- * contrast with parlist(), used in function declarations
+  -- * used in primaryexp()
+  --------------------------------------------------------------------
+  function luaY:funcargs(f)
+    local args = {}
+    local line = luaX.ln
+    local c = tok
+    if c == "(" then  -- funcargs -> '(' [ explist1 ] ')'
+      self:log(">> funcargs: begin '('")
+      if line ~= lastln then
+        self:syntaxerror("ambiguous syntax (function call x new statement)")
+      end
+      self:next()
+      if tok == ")" then  -- arg list is empty?
+        args.k = "VVOID"
+      else
+        self:explist1(args)
+      end
+      self:check_match(")", "(", line)
+    elseif c == "{" then  -- funcargs -> constructor
+      self:log(">> funcargs: begin '{'")
+      self:constructor(args)
+    elseif c == "<string>" then  -- funcargs -> STRING
+      self:log(">> funcargs: begin <string>")
+      self:codestring(args, seminfo)
+      self:next()  -- must use 'seminfo' before 'next'
+    else
+      self:syntaxerror("function arguments expected")
+      return
+    end--if c
+    f.k = "VCALL"
+    self:log("<< funcargs: end -- expr is a VCALL")
+  end
+
+--[[--------------------------------------------------------------------
+-- mostly expression functions
+----------------------------------------------------------------------]]
+
+  --------------------------------------------------------------------
+  -- parses an expression in parentheses or a single variable
+  -- * used in primaryexp()
+  --------------------------------------------------------------------
+  function luaY:prefixexp(v)
+    -- prefixexp -> NAME | '(' expr ')'
+    local c = tok
+    if c == "(" then
+      self:log(">> prefixexp: begin ( expr ) ")
+      local line = self.ln
+      self:next()
+      self:expr(v)
+      self:check_match(")", "(", line)
+      self:log("<< prefixexp: end ( expr ) ")
+    elseif c == "<name>" then
+      self:log("prefixexp: <name>")
+      self:singlevar(v)
+    else
+      self:syntaxerror("unexpected symbol")
+    end--if c
+  end
+  --------------------------------------------------------------------
+  -- parses a prefixexp (an expression in parentheses or a single
+  -- variable) or a function call specification
+  -- * used in simpleexp(), assignment(), expr_stat()
+  --------------------------------------------------------------------
+  function luaY:primaryexp(v)
+    -- primaryexp ->
+    --    prefixexp { '.' NAME | '[' exp ']' | ':' NAME funcargs | funcargs }
+    self:prefixexp(v)
+    while true do
+      local c = tok
+      if c == "." then  -- field
+        self:log("primaryexp: '.' field")
+        self:field(v)
+      elseif c == "[" then  -- '[' exp1 ']'
+        self:log("primaryexp: [ exp1 ]")
+        local key = {}
+        self:index(key)
+      elseif c == ":" then  -- ':' NAME funcargs
+        self:log("primaryexp: :<name> funcargs")
+        local key = {}
+        self:next()
+        self:checkname(key)
+        self:funcargs(v)
+      elseif c == "(" or c == "<string>" or c == "{" then  -- funcargs
+        self:log("primaryexp: "..c.." funcargs")
+        self:funcargs(v)
+      else
+        return
+      end--if c
+    end--while
+  end
+  --------------------------------------------------------------------
+  -- parses general expression types, constants handled here
+  -- * used in subexpr()
+  --------------------------------------------------------------------
+  function luaY:simpleexp(v)
+    -- simpleexp -> NUMBER | STRING | NIL | TRUE | FALSE | constructor
+    --           | FUNCTION body | primaryexp
+    local c = tok
+    if c == "<number>" then
+      self:log("simpleexp: <number>="..seminfo)
+      v.k = "VK"
+      self:next()  -- must use 'seminfo' before 'next'
+    elseif c == "<string>" then
+      self:log("simpleexp: <string>="..seminfo)
+      self:codestring(v, seminfo)
+      self:next()  -- must use 'seminfo' before 'next'
+    elseif c == "nil" then
+      self:log("simpleexp: nil")
+      v.k = "VNIL"
+      self:next()
+    elseif c == "true" then
+      self:log("simpleexp: true")
+      v.k = "VTRUE"
+      self:next()
+    elseif c == "false" then
+      self:log("simpleexp: false")
+      v.k = "VFALSE"
+      self:next()
+    elseif c == "{" then  -- constructor
+      self:log("simpleexp: constructor")
+      self:constructor(v)
+    elseif c == "function" then
+      self:log("simpleexp: function")
+      self:next()
+      self:body(v, false, luaX.ln)
+    else
+      self:primaryexp(v)
+    end--if c
+  end
+  ------------------------------------------------------------------------
+  -- Parse subexpressions. Includes handling of unary operators and binary
+  -- operators. A subexpr is given the rhs priority level of the operator
+  -- immediately left of it, if any (limit is -1 if none,) and if a binop
+  -- is found, limit is compared with the lhs priority level of the binop
+  -- in order to determine which executes first.
+  -- * recursively called
+  -- * used in expr()
+  ------------------------------------------------------------------------
+  function luaY:subexpr(v, limit)
+    -- subexpr -> (simpleexp | unop subexpr) { binop subexpr }
+    --   * where 'binop' is any binary operator with a priority
+    --     higher than 'limit'
+    local op = tok
+    local uop = unopr[op]
+    if uop then
+      self:log("  subexpr: uop='"..op.."'")
+      self:next()
+      self:subexpr(v, 8) -- UNARY_PRIORITY
+    else
+      self:simpleexp(v)
+    end
+    -- expand while operators have priorities higher than 'limit'
+    op = tok
+    local binop = binopr_left[op]
+    while binop and binop > limit do
+      local v2 = {}
+      self:log(">> subexpr: binop='"..op.."'")
+      self:next()
+      -- read sub-expression with higher priority
+      local nextop = self:subexpr(v2, binopr_right[op])
+      self:log("<< subexpr: -- evaluate")
+      op = nextop
+      binop = binopr_left[op]
+    end
+    return op  -- return first untreated operator
+  end
+  --------------------------------------------------------------------
+  -- Expression parsing starts here. Function subexpr is entered with the
+  -- left operator (which is non-existent) priority of -1, which is lower
+  -- than all actual operators. Expr information is returned in parm v.
+  -- * used in cond(), explist1(), index(), recfield(), listfield(),
+  --   prefixexp(), while_stat(), exp1()
+  --------------------------------------------------------------------
+  function luaY:expr(v)
+    -- expr -> subexpr
+    self:log("expr:")
+    self:subexpr(v, -1)
+  end
+
+--[[--------------------------------------------------------------------
+-- third level parsing functions
+----------------------------------------------------------------------]]
+
+  --------------------------------------------------------------------
+  -- parse a variable assignment sequence
+  -- * recursively called
+  -- * used in expr_stat()
+  --------------------------------------------------------------------
+  function luaY:assignment(v)
+    local e = {}
+    local c = v.v.k
+    self:check_condition(c == "VLOCAL" or c == "VUPVAL" or c == "VGLOBAL"
+                         or c == "VINDEXED", "syntax error")
+    if self:testnext(",") then  -- assignment -> ',' primaryexp assignment
+      local nv = {}  -- expdesc
+      nv.v = {}
+      self:log("assignment: ',' -- next LHS element")
+      self:primaryexp(nv.v)
+      -- lparser.c deals with some register usage conflict here
+      self:assignment(nv)
+    else  -- assignment -> '=' explist1
+      self:check("=")
+      self:log("assignment: '=' -- RHS elements follows")
+      self:explist1(e)
+      return  -- avoid default
+    end
+    e.k = "VNONRELOC"
+  end
+  --------------------------------------------------------------------
+  -- parse a for loop body for both versions of the for loop
+  -- * used in fornum(), forlist()
+  --------------------------------------------------------------------
+  function luaY:forbody(line, isnum)
+    self:check("do")
+    self:enterblock(true)  -- loop block
+    self:block()
+    self:leaveblock()
+  end
+  --------------------------------------------------------------------
+  -- parse a numerical for loop, calls forbody()
+  -- * used in for_stat()
+  --------------------------------------------------------------------
+  function luaY:fornum(varname, line)
+    -- fornum -> NAME = exp1, exp1 [, exp1] DO body
+    self:new_localvar(varname)
+    self:new_localvarstr("(for limit)")
+    self:new_localvarstr("(for step)")
+    self:log(">> fornum: begin")
+    self:check("=")
+    self:log("fornum: index start")
+    self:exp1()  -- initial value
+    self:check(",")
+    self:log("fornum: index stop")
+    self:exp1()  -- limit
+    if self:testnext(",") then
+      self:log("fornum: index step")
+      self:exp1()  -- optional step
+    else
+      -- default step = 1
+    end
+    self:log("fornum: body")
+    self:forbody(line, true)
+    self:log("<< fornum: end")
+  end
+  --------------------------------------------------------------------
+  -- parse a generic for loop, calls forbody()
+  -- * used in for_stat()
+  --------------------------------------------------------------------
+  function luaY:forlist(indexname)
+    -- forlist -> NAME {, NAME} IN explist1 DO body
+    self:log(">> forlist: begin")
+    local e = {}
+    self:new_localvarstr("(for generator)")
+    self:new_localvarstr("(for state)")
+    self:new_localvar(indexname)
+    while self:testnext(",") do
+      self:new_localvar(self:str_checkname())
+    end
+    self:check("in")
+    local line = line
+    self:log("forlist: explist1")
+    self:explist1(e)
+    self:log("forlist: body")
+    self:forbody(line, false)
+    self:log("<< forlist: end")
+  end
+  --------------------------------------------------------------------
+  -- parse a function name specification
+  -- * used in func_stat()
+  --------------------------------------------------------------------
+  function luaY:funcname(v)
+    -- funcname -> NAME {field} [':' NAME]
+    self:log(">> funcname: begin")
+    local needself = false
+    self:singlevar(v)
+    while tok == "." do
+      self:log("funcname: -- '.' field")
+      self:field(v)
+    end
+    if tok == ":" then
+      self:log("funcname: -- ':' field")
+      needself = true
+      self:field(v)
+    end
+    self:log("<< funcname: end")
+    return needself
+  end
+  --------------------------------------------------------------------
+  -- parse the single expressions needed in numerical for loops
+  -- * used in fornum()
+  --------------------------------------------------------------------
+  function luaY:exp1()
+    -- exp1 -> expr
+    local e = {}
+    self:log(">> exp1: begin")
+    self:expr(e)
+    self:log("<< exp1: end")
+  end
+  --------------------------------------------------------------------
+  -- parse condition in a repeat statement or an if control structure
+  -- * used in repeat_stat(), test_then_block()
+  --------------------------------------------------------------------
+  function luaY:cond(v)
+    -- cond -> expr
+    self:log(">> cond: begin")
+    self:expr(v)  -- read condition
+    self:log("<< cond: end")
+  end
+  --------------------------------------------------------------------
+  -- parse part of an if control structure, including the condition
+  -- * used in if_stat()
+  --------------------------------------------------------------------
+  function luaY:test_then_block(v)
+    -- test_then_block -> [IF | ELSEIF] cond THEN block
+    self:next()  -- skip IF or ELSEIF
+    self:log("test_then_block: test condition")
+    self:cond(v)
+    self:check("then")
+    self:log("test_then_block: then block")
+    self:block()  -- 'then' part
+  end
+  --------------------------------------------------------------------
+  -- parse a local function statement
+  -- * used in local_stat()
+  --------------------------------------------------------------------
+  function luaY:localfunc()
+    -- localfunc -> NAME body
+    local v, b = {}
+    self:log("localfunc: begin")
+    self:new_localvar(self:str_checkname())
+    v.k = "VLOCAL"
+    self:log("localfunc: body")
+    self:body(b, false, luaX.ln)
+    self:log("localfunc: end")
+  end
+  --------------------------------------------------------------------
+  -- parse a local variable declaration statement
+  -- * used in local_stat()
+  --------------------------------------------------------------------
+  function luaY:localstat()
+    -- localstat -> NAME {',' NAME} ['=' explist1]
+    self:log(">> localstat: begin")
+    local e = {}
+    repeat
+      self:new_localvar(self:str_checkname())
+    until not self:testnext(",")
+    if self:testnext("=") then
+      self:log("localstat: -- assignment")
+      self:explist1(e)
+    else
+      e.k = "VVOID"
+    end
+    self:log("<< localstat: end")
+  end
+  --------------------------------------------------------------------
+  -- parse a list of comma-separated expressions
+  -- * used in return_stat(), localstat(), funcargs(), assignment(),
+  --   forlist()
+  --------------------------------------------------------------------
+  function luaY:explist1(e)
+    -- explist1 -> expr { ',' expr }
+    self:log(">> explist1: begin")
+    self:expr(e)
+    while self:testnext(",") do
+      self:log("explist1: ',' -- continuation")
+      self:expr(e)
+    end
+    self:log("<< explist1: end")
+  end
+  --------------------------------------------------------------------
+  -- parse function declaration body
+  -- * used in simpleexp(), localfunc(), func_stat()
+  --------------------------------------------------------------------
+  function luaY:body(e, needself, line)
+    -- body ->  '(' parlist ')' chunk END
+    self:open_func()
+    self:log("body: begin")
+    self:check("(")
+    if needself then
+      self:create_local("self")
+    end
+    self:log("body: parlist")
+    self:parlist()
+    self:check(")")
+    self:log("body: chunk")
+    self:chunk()
+    self:check_match("end", "function", line)
+    self:log("body: end")
+    self:close_func()
+  end
+  --------------------------------------------------------------------
+  -- parse a code block or unit
+  -- * used in do_stat(), while_stat(), repeat_stat(), forbody(),
+  --   test_then_block(), if_stat()
+  --------------------------------------------------------------------
+  function luaY:block()
+    -- block -> chunk
+    self:log("block: begin")
+    self:enterblock(false)
+    self:chunk()
+    self:leaveblock()
+    self:log("block: end")
+  end
+
+--[[--------------------------------------------------------------------
+-- second level parsing functions, all with '_stat' suffix
+-- * stat() -> *_stat()
+----------------------------------------------------------------------]]
+
+  --------------------------------------------------------------------
+  -- initial parsing for a for loop, calls fornum() or forlist()
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:for_stat()
+    -- stat -> for_stat -> fornum | forlist
+    local line = line
+    self:log("for_stat: begin")
+    self:enterblock(false)  -- block to control variable scope
+    self:next()  -- skip 'for'
+    local varname = self:str_checkname()  -- first variable name
+    local c = tok
+    if c == "=" then
+      self:log("for_stat: numerical loop")
+      self:fornum(varname, line)
+    elseif c == "," or c == "in" then
+      self:log("for_stat: list-based loop")
+      self:forlist(varname)
+    else
+      self:syntaxerror("'=' or 'in' expected")
+    end
+    self:check_match("end", "for", line)
+    self:leaveblock()
+    self:log("for_stat: end")
+  end
+  --------------------------------------------------------------------
+  -- parse a while-do control structure, body processed by block()
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:while_stat()
+    -- stat -> while_stat -> WHILE cond DO block END
+    local line = line
+    local v = {}
+    self:next()  -- skip WHILE
+    self:log("while_stat: begin/condition")
+    self:expr(v)  -- parse condition
+    self:enterblock(true)
+    self:check("do")
+    self:log("while_stat: block")
+    self:block()
+    self:check_match("end", "while", line)
+    self:leaveblock()
+    self:log("while_stat: end")
+  end
+  --------------------------------------------------------------------
+  -- parse a repeat-until control structure, body parsed by block()
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:repeat_stat()
+    -- stat -> repeat_stat -> REPEAT block UNTIL cond
+    local line = line
+    local v = {}
+    self:log("repeat_stat: begin")
+    self:enterblock(true)
+    self:next()
+    self:block()
+    self:check_match("until", "repeat", line)
+    self:log("repeat_stat: condition")
+    self:cond(v)
+    self:leaveblock()
+    self:log("repeat_stat: end")
+  end
+  --------------------------------------------------------------------
+  -- parse an if control structure
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:if_stat()
+    -- stat -> if_stat -> IF cond THEN block
+    --                    {ELSEIF cond THEN block} [ELSE block] END
+    local line = line
+    local v = {}
+    self:log("if_stat: if...then")
+    self:test_then_block(v)  -- IF cond THEN block
+    while tok == "elseif" do
+      self:log("if_stat: elseif...then")
+      self:test_then_block(v)  -- ELSEIF cond THEN block
+    end
+    if tok == "else" then
+      self:log("if_stat: else...")
+      self:next()  -- skip ELSE
+      self:block()  -- 'else' part
+    end
+    self:check_match("end", "if", line)
+    self:log("if_stat: end")
+  end
+  --------------------------------------------------------------------
+  -- parse a return statement
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:return_stat()
+    -- stat -> return_stat -> RETURN explist
+    local e = {}
+    self:next()  -- skip RETURN
+    local c = tok
+    if block_follow[c] or c == ";" then
+      -- return no values
+      self:log("return_stat: no return values")
+    else
+      self:log("return_stat: begin")
+      self:explist1(e)  -- optional return values
+      self:log("return_stat: end")
+    end
+  end
+  --------------------------------------------------------------------
+  -- parse a break statement
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:break_stat()
+    -- stat -> break_stat -> BREAK
+    local bl = fs.bl
+    self:next()  -- skip BREAK
+    while bl and not bl.isbreakable do -- find a breakable block
+      bl = bl.prev
+    end
+    if not bl then
+      self:syntaxerror("no loop to break")
+    end
+    self:log("break_stat: -- break out of loop")
+  end
+  --------------------------------------------------------------------
+  -- parse a function call with no returns or an assignment statement
+  -- * the struct with .prev is used for name searching in lparse.c,
+  --   so it is retained for now; present in assignment() also
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:expr_stat()
+    -- stat -> expr_stat -> func | assignment
+    local v = {}
+    v.v = {}
+    self:primaryexp(v.v)
+    if v.v.k == "VCALL" then  -- stat -> func
+      -- call statement uses no results
+      self:log("expr_stat: function call k='"..v.v.k.."'")
+    else  -- stat -> assignment
+      self:log("expr_stat: assignment k='"..v.v.k.."'")
+      v.prev = nil
+      self:assignment(v)
+    end
+  end
+  --------------------------------------------------------------------
+  -- parse a function statement
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:function_stat()
+    -- stat -> function_stat -> FUNCTION funcname body
+    local line = line
+    local v, b = {}, {}
+    self:log("function_stat: begin")
+    self:next()  -- skip FUNCTION
+    local needself = self:funcname(v)
+    self:log("function_stat: body needself='"..tostring(needself).."'")
+    self:body(b, needself, line)
+    self:log("function_stat: end")
+  end
+  --------------------------------------------------------------------
+  -- parse a simple block enclosed by a DO..END pair
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:do_stat()
+    -- stat -> do_stat -> DO block END
+    self:next()  -- skip DO
+    self:log("do_stat: begin")
+    self:block()
+    self:log("do_stat: end")
+    self:check_match("end", "do", line)
+  end
+  --------------------------------------------------------------------
+  -- parse a statement starting with LOCAL
+  -- * used in stat()
+  --------------------------------------------------------------------
+  function luaY:local_stat()
+    -- stat -> local_stat -> LOCAL FUNCTION localfunc
+    --                    -> LOCAL localstat
+    self:next()  -- skip LOCAL
+    if self:testnext("function") then  -- local function?
+      self:log("local_stat: local function")
+      self:localfunc()
+    else
+      self:log("local_stat: local statement")
+      self:localstat()
+    end
+  end
+
+--[[--------------------------------------------------------------------
+-- main function, top level parsing functions
+-- * [entry] -> parser() -> chunk() -> stat()
+----------------------------------------------------------------------]]
+
+  --------------------------------------------------------------------
+  -- initial parsing for statements, calls '_stat' suffixed functions
+  -- * used in chunk()
+  --------------------------------------------------------------------
+  function luaY:stat()
+    line = luaX.ln
+    local c = tok
+    local fn = stat_call[c]
+    -- handles: if while do for repeat function local return break
+    if fn then
+      self:log("-- STATEMENT: begin '"..c.."' line="..line)
+      self[fn](self)
+      self:log("-- STATEMENT: end '"..c.."'")
+      -- return or break must be last statement
+      if c == "return" or c == "break" then return true end
+    else
+      self:log("-- STATEMENT: begin 'expr' line="..line)
+      self:expr_stat()
+      self:log("-- STATEMENT: end 'expr'")
+    end
+    self:log("")
+    return false
+  end
+  --------------------------------------------------------------------
+  -- parse a chunk, which consists of a bunch of statements
+  -- * used in parser(), body(), block()
+  --------------------------------------------------------------------
+  function luaY:chunk()
+    -- chunk -> { stat [';'] }
+    self:log("chunk:")
+    local islast = false
+    while not islast and not block_follow[tok] do
+      islast = self:stat()
+      self:testnext(";")
+    end
+  end
+  --------------------------------------------------------------------
+  -- performs parsing, returns parsed data structure
+  --------------------------------------------------------------------
+  function luaY:parser()
+    self:log("-- TOP: begin")
+    self:open_func()
+    self:log("")
+    self:next()  -- read first token
+    self:chunk()
+    self:check_condition(tok == "<eof>", "<eof> expected")
+    self:close_func()
+    self:log("-- TOP: end")
+    return top_fs
+  end
+  --------------------------------------------------------------------
+  return luaY -- return actual module to user, done
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/lzio_mk2.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/lzio_mk2.lua
new file mode 100644
index 0000000..6378366
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/lzio_mk2.lua
@@ -0,0 +1,106 @@
+--[[--------------------------------------------------------------------
+
+  lzio.lua
+  Lua 5 buffered streams in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- *
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- local zio_init = require("lzio.lua")
+-- local z = zio_init("@<filename>")
+-- local z = zio_init("<string>")
+-- z:getc()
+-- * get next character from input stream
+-- z:fill()
+-- * fills an empty stream buffer
+-- z.name
+-- * name of the chunk, "@<filename>" or "=string"
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Format of z structure (ZIO)
+-- z.n       -- bytes still unread
+-- z.p       -- last read position in buffer
+-- z.reader  -- chunk reader function
+-- z.data    -- data buffer
+-- z.name    -- name of stream
+----------------------------------------------------------------------]]
+
+return
+function(buff)
+--[[--------------------------------------------------------------------
+-- initialize reader
+-- * reader should return a string, or nil if nothing else to parse
+----------------------------------------------------------------------]]
+  local reader
+  local z = {}
+  if string.sub(buff, 1, 1) == "@" then
+    ----------------------------------------------------------------
+    -- create a chunk reader function from a source file
+    ----------------------------------------------------------------
+    z.name = buff
+    local BUFFERSIZE = 512
+    local h = io.open(string.sub(buff, 2), "r")
+    if not h then return nil end
+    reader = function()
+      if not h or io.type(h) == "closed file" then return nil end
+      local buff = h:read(BUFFERSIZE)
+      if not buff then h:close(); h = nil end
+      return buff
+    end
+  else
+    ----------------------------------------------------------------
+    -- create a chunk reader function from a source string
+    ----------------------------------------------------------------
+    z.name = "=string"
+    reader = function()
+      if not buff then return nil end
+      local data = buff
+      buff = nil
+      return data
+    end
+  end
+--[[--------------------------------------------------------------------
+-- fills an empty stream buffer, returns first character
+----------------------------------------------------------------------]]
+  function z:fill()
+    local data = z.reader()
+    z.data = data
+    if not data or data == "" then return "EOZ" end
+    z.n, z.p = string.len(data) - 1, 1
+    return string.sub(data, 1, 1)
+  end
+--[[--------------------------------------------------------------------
+-- get next character, fills buffer if characters needed
+----------------------------------------------------------------------]]
+  function z:getc()
+    local n, p = z.n, z.p + 1
+    if n > 0 then
+      z.n, z.p = n - 1, p
+      return string.sub(z.data, p, p)
+    else
+      return self:fill()
+    end
+  end
+--[[--------------------------------------------------------------------
+-- initialize input stream object
+----------------------------------------------------------------------]]
+  if not reader then return end
+  z.reader = reader
+  z.data = ""
+  z.n, z.p = 0, 0
+  return z
+--[[------------------------------------------------------------------]]
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/lzio_mk4.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/lzio_mk4.lua
new file mode 100644
index 0000000..d97c795
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/lzio_mk4.lua
@@ -0,0 +1,82 @@
+--[[--------------------------------------------------------------------
+
+  lzio.lua
+  Lua 5 buffered streams in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * this is a line-based input streamer for the MK4 lexer
+-- * all EOL (end-of-line) characters are translated to "\n"
+-- * if last line in a file does not have an EOL character, this
+--   streamer adds one, the ambiguity is due to "*l" stripping
+-- * EOF uses an empty string to simplify testing in lexer
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- local zio_init = require("lzio.lua")
+-- local z = zio_init("@<filename>")
+-- local z = zio_init("<string>")
+-- z:getln()
+-- * get next line from input stream
+-- z.name
+-- * name of the chunk, "@<filename>" or "=string"
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Format of z structure (ZIO)
+-- z.getln   -- chunk reader function, reads line-by-line
+-- z.name    -- name of stream
+----------------------------------------------------------------------]]
+
+return
+function(buff)
+--[[--------------------------------------------------------------------
+-- initialize reader
+-- * reader should return a string with an EOL character, or an empty
+--   string if there is nothing else to parse
+----------------------------------------------------------------------]]
+  local reader
+  local z = {}
+  if string.sub(buff, 1, 1) == "@" then
+    ----------------------------------------------------------------
+    -- create a chunk reader function from a source file
+    ----------------------------------------------------------------
+    z.name = buff
+    local h = io.open(string.sub(buff, 2), "r")
+    if not h then return nil end
+    reader = function()
+      if not h or io.type(h) == "closed file" then return nil end
+      local data = h:read("*l")
+      if not data then h:close(); return "" end
+      return data.."\n"
+    end
+  else
+    ----------------------------------------------------------------
+    -- create a chunk reader function from a source string
+    ----------------------------------------------------------------
+    z.name = "=string"
+    reader = function()
+      if not buff then return nil end
+      local p, q, data, eol = string.find(buff, "([^\r\n]*)(\r?\n?)")
+      buff = string.sub(buff, q + 1)
+      if data == "" and eol == "" then return "" end
+      return data..eol
+    end
+  end
+--[[--------------------------------------------------------------------
+-- initialize input stream object
+----------------------------------------------------------------------]]
+  if not reader then return end
+  z.getln = reader
+  return z
+--[[------------------------------------------------------------------]]
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/bench_llex_mk2.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/bench_llex_mk2.lua
new file mode 100644
index 0000000..873afd1
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/bench_llex_mk2.lua
@@ -0,0 +1,94 @@
+--[[--------------------------------------------------------------------
+
+  bench_llex.lua
+  Benchmark test for llex.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+local zio_init = require("../lzio_mk2")
+local lex_init = require("../llex_mk2")
+
+------------------------------------------------------------------------
+-- load in a standard set of sample files
+-- * file set is 5.0.3 front end set sans luac.lua
+------------------------------------------------------------------------
+
+local fileset, totalsize = {}, 0
+for fn in string.gfind([[
+../../orig-5.0.3/lcode.lua
+../../orig-5.0.3/ldump.lua
+../../orig-5.0.3/llex.lua
+../../orig-5.0.3/lopcodes.lua
+../../orig-5.0.3/lparser.lua
+../../orig-5.0.3/lzio.lua
+]], "%S+") do
+  table.insert(fileset, fn)
+end
+
+for i = 1, table.getn(fileset) do
+  local fn = fileset[i]
+  local inf = io.open(fn, "rb")
+  if not inf then
+    error("failed to open "..fn.." for reading")
+  end
+  local data = inf:read("*a")
+  local data_sz = string.len(data)
+  inf:close()
+  if not data or data_sz == 0 then
+    error("failed to read data from "..fn.." or file is zero-length")
+  end
+  totalsize = totalsize + data_sz
+  fileset[i] = data
+end
+
+------------------------------------------------------------------------
+-- benchmark tester
+------------------------------------------------------------------------
+
+local DURATION = 5      -- how long the benchmark should run
+
+local time = os.time
+local lexedsize = 0
+local tnow, elapsed = time(), 0
+
+while time() == tnow do end    -- wait for second to click over
+tnow = time()
+
+while true do
+  for i = 1, table.getn(fileset) do
+    ------------------------------------------------------------
+    local chunk = fileset[i]
+    local z = zio_init(chunk)
+    local luaX = lex_init(z, "=string")
+    while true do
+      local tok, seminfo = luaX:lex()
+      if tok == "<eof>" then break end
+    end
+    ------------------------------------------------------------
+    lexedsize = lexedsize + string.len(chunk)
+    if time() > tnow then
+      tnow = time()
+      elapsed = elapsed + 1
+      if elapsed >= DURATION then
+        -- report performance of lexer
+        lexedsize = lexedsize / 1024
+        local speed = lexedsize / DURATION
+        print("Lexer performance:")
+        print("Size of data lexed (KB): "..string.format("%.1f", lexedsize))
+        print("Speed of lexer (KB/s): "..string.format("%.1f", speed))
+        -- repeat until user breaks program
+        elapsed = 0
+      end
+    end
+    ------------------------------------------------------------
+  end--for
+end--while
+
+-- end of script
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/bench_llex_mk3.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/bench_llex_mk3.lua
new file mode 100644
index 0000000..6b2a4a6
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/bench_llex_mk3.lua
@@ -0,0 +1,92 @@
+--[[--------------------------------------------------------------------
+
+  bench_llex.lua
+  Benchmark test for llex.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+local lex_init = require("../llex_mk3")
+
+------------------------------------------------------------------------
+-- load in a standard set of sample files
+-- * file set is 5.0.3 front end set sans luac.lua
+------------------------------------------------------------------------
+
+local fileset, totalsize = {}, 0
+for fn in string.gfind([[
+../../orig-5.0.3/lcode.lua
+../../orig-5.0.3/ldump.lua
+../../orig-5.0.3/llex.lua
+../../orig-5.0.3/lopcodes.lua
+../../orig-5.0.3/lparser.lua
+../../orig-5.0.3/lzio.lua
+]], "%S+") do
+  table.insert(fileset, fn)
+end
+
+for i = 1, table.getn(fileset) do
+  local fn = fileset[i]
+  local inf = io.open(fn, "rb")
+  if not inf then
+    error("failed to open "..fn.." for reading")
+  end
+  local data = inf:read("*a")
+  local data_sz = string.len(data)
+  inf:close()
+  if not data or data_sz == 0 then
+    error("failed to read data from "..fn.." or file is zero-length")
+  end
+  totalsize = totalsize + data_sz
+  fileset[i] = data
+end
+
+------------------------------------------------------------------------
+-- benchmark tester
+------------------------------------------------------------------------
+
+local DURATION = 5      -- how long the benchmark should run
+
+local time = os.time
+local lexedsize = 0
+local tnow, elapsed = time(), 0
+
+while time() == tnow do end    -- wait for second to click over
+tnow = time()
+
+while true do
+  for i = 1, table.getn(fileset) do
+    ------------------------------------------------------------
+    local chunk = fileset[i]
+    local luaX = lex_init(chunk, "=string")
+    while true do
+      local tok, seminfo = luaX:lex()
+      if tok == "<eof>" then break end
+    end
+    ------------------------------------------------------------
+    lexedsize = lexedsize + string.len(chunk)
+    if time() > tnow then
+      tnow = time()
+      elapsed = elapsed + 1
+      if elapsed >= DURATION then
+        -- report performance of lexer
+        lexedsize = lexedsize / 1024
+        local speed = lexedsize / DURATION
+        print("Lexer performance:")
+        print("Size of data lexed (KB): "..string.format("%.1f", lexedsize))
+        print("Speed of lexer (KB/s): "..string.format("%.1f", speed))
+        -- repeat until user breaks program
+        elapsed = 0
+      end
+    end
+    ------------------------------------------------------------
+  end--for
+end--while
+
+-- end of script
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/bench_llex_mk4.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/bench_llex_mk4.lua
new file mode 100644
index 0000000..b94386b
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/bench_llex_mk4.lua
@@ -0,0 +1,94 @@
+--[[--------------------------------------------------------------------
+
+  bench_llex.lua
+  Benchmark test for llex.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+local zio_init = require("../lzio_mk4")
+local lex_init = require("../llex_mk4")
+
+------------------------------------------------------------------------
+-- load in a standard set of sample files
+-- * file set is 5.0.3 front end set sans luac.lua
+------------------------------------------------------------------------
+
+local fileset, totalsize = {}, 0
+for fn in string.gfind([[
+../../orig-5.0.3/lcode.lua
+../../orig-5.0.3/ldump.lua
+../../orig-5.0.3/llex.lua
+../../orig-5.0.3/lopcodes.lua
+../../orig-5.0.3/lparser.lua
+../../orig-5.0.3/lzio.lua
+]], "%S+") do
+  table.insert(fileset, fn)
+end
+
+for i = 1, table.getn(fileset) do
+  local fn = fileset[i]
+  local inf = io.open(fn, "rb")
+  if not inf then
+    error("failed to open "..fn.." for reading")
+  end
+  local data = inf:read("*a")
+  local data_sz = string.len(data)
+  inf:close()
+  if not data or data_sz == 0 then
+    error("failed to read data from "..fn.." or file is zero-length")
+  end
+  totalsize = totalsize + data_sz
+  fileset[i] = data
+end
+
+------------------------------------------------------------------------
+-- benchmark tester
+------------------------------------------------------------------------
+
+local DURATION = 5      -- how long the benchmark should run
+
+local time = os.time
+local lexedsize = 0
+local tnow, elapsed = time(), 0
+
+while time() == tnow do end    -- wait for second to click over
+tnow = time()
+
+while true do
+  for i = 1, table.getn(fileset) do
+    ------------------------------------------------------------
+    local chunk = fileset[i]
+    local z = zio_init(chunk)
+    local luaX = lex_init(z, "=string")
+    while true do
+      local tok, seminfo = luaX:lex()
+      if tok == "<eof>" then break end
+    end
+    ------------------------------------------------------------
+    lexedsize = lexedsize + string.len(chunk)
+    if time() > tnow then
+      tnow = time()
+      elapsed = elapsed + 1
+      if elapsed >= DURATION then
+        -- report performance of lexer
+        lexedsize = lexedsize / 1024
+        local speed = lexedsize / DURATION
+        print("Lexer performance:")
+        print("Size of data lexed (KB): "..string.format("%.1f", lexedsize))
+        print("Speed of lexer (KB/s): "..string.format("%.1f", speed))
+        -- repeat until user breaks program
+        elapsed = 0
+      end
+    end
+    ------------------------------------------------------------
+  end--for
+end--while
+
+-- end of script
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_01.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_01.lua
new file mode 100644
index 0000000..379cc9d
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_01.lua
@@ -0,0 +1,9 @@
+-- START OF SOURCE --
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_02.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_02.lua
new file mode 100644
index 0000000..13eb2e6
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_02.lua
@@ -0,0 +1,10 @@
+-- START OF SOURCE --
+-- foobar
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_03.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_03.lua
new file mode 100644
index 0000000..33df29c
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_03.lua
@@ -0,0 +1,21 @@
+-- START OF SOURCE --
+do
+end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'do' line=1
+  do_stat: begin
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    leaveblock
+  block: end
+  do_stat: end
+  -- STATEMENT: end 'do'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_04.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_04.lua
new file mode 100644
index 0000000..d0fefbc
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_04.lua
@@ -0,0 +1,31 @@
+-- START OF SOURCE --
+do end
+do end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'do' line=1
+  do_stat: begin
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    leaveblock
+  block: end
+  do_stat: end
+  -- STATEMENT: end 'do'
+  
+  -- STATEMENT: begin 'do' line=2
+  do_stat: begin
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    leaveblock
+  block: end
+  do_stat: end
+  -- STATEMENT: end 'do'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_05.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_05.lua
new file mode 100644
index 0000000..8d6f962
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_05.lua
@@ -0,0 +1,129 @@
+-- START OF SOURCE --
+foo()
+foo{}
+foo""
+foo:bar()
+foo=false
+foo.bar=true
+foo[true]=nil
+foo,bar=1,"a"
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'expr' line=1
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  primaryexp: ( funcargs
+    funcargs: begin '('
+    funcargs: end -- expr is a VCALL
+  expr_stat: function call k='VCALL'
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=2
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  primaryexp: { funcargs
+    funcargs: begin '{'
+      constructor: begin
+      constructor: end
+    funcargs: end -- expr is a VCALL
+  expr_stat: function call k='VCALL'
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=3
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  primaryexp: <string> funcargs
+    funcargs: begin <string>
+        codestring: ""
+    funcargs: end -- expr is a VCALL
+  expr_stat: function call k='VCALL'
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=4
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  primaryexp: :<name> funcargs
+      checkname:
+      str_checkname: 'bar'
+      codestring: "bar"
+    funcargs: begin '('
+    funcargs: end -- expr is a VCALL
+  expr_stat: function call k='VCALL'
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=5
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: false
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=6
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  primaryexp: '.' field
+    field: operator=.
+      checkname:
+      str_checkname: 'bar'
+      codestring: "bar"
+  expr_stat: assignment k='VINDEXED'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: true
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=7
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  primaryexp: [ exp1 ]
+    index: begin '['
+    expr:
+    simpleexp: true
+    index: end ']'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: nil
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=8
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  expr_stat: assignment k='VLOCAL'
+  assignment: ',' -- next LHS element
+  prefixexp: <name>
+      str_checkname: 'bar'
+      singlevar: name='bar'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: <number>=1
+    explist1: ',' -- continuation
+    expr:
+    simpleexp: <string>=a
+        codestring: "a"
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_06.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_06.lua
new file mode 100644
index 0000000..ca7776e
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_06.lua
@@ -0,0 +1,132 @@
+-- START OF SOURCE --
+foo=true
+foo=false
+foo=nil
+foo=1.23e45
+foo=-1
+foo=(0)
+foo=1+2
+foo=1+2*3-4/5
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'expr' line=1
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: true
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=2
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: false
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=3
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: nil
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=4
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: <number>=1.23e+45
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=5
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+      subexpr: uop='-'
+    simpleexp: <number>=1
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=6
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+      prefixexp: begin ( expr ) 
+      expr:
+      simpleexp: <number>=0
+      prefixexp: end ( expr ) 
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=7
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: <number>=1
+      subexpr: binop='+'
+      simpleexp: <number>=2
+      subexpr: -- evaluate
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=8
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: <number>=1
+      subexpr: binop='+'
+      simpleexp: <number>=2
+        subexpr: binop='*'
+        simpleexp: <number>=3
+        subexpr: -- evaluate
+      subexpr: -- evaluate
+      subexpr: binop='-'
+      simpleexp: <number>=4
+        subexpr: binop='/'
+        simpleexp: <number>=5
+        subexpr: -- evaluate
+      subexpr: -- evaluate
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_07.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_07.lua
new file mode 100644
index 0000000..8c0a738
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_07.lua
@@ -0,0 +1,147 @@
+-- START OF SOURCE --
+if foo then foo=1 end
+if foo then foo=1 else foo=0 end
+if foo then foo=1 elseif not foo then foo=0 end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'if' line=1
+  if_stat: if...then
+  test_then_block: test condition
+    cond: begin
+    expr:
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar: name='foo'
+    cond: end
+  test_then_block: then block
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'expr' line=1
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar: name='foo'
+    expr_stat: assignment k='VLOCAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      simpleexp: <number>=1
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    leaveblock
+  block: end
+  if_stat: end
+  -- STATEMENT: end 'if'
+  
+  -- STATEMENT: begin 'if' line=2
+  if_stat: if...then
+  test_then_block: test condition
+    cond: begin
+    expr:
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar: name='foo'
+    cond: end
+  test_then_block: then block
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'expr' line=2
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar: name='foo'
+    expr_stat: assignment k='VLOCAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      simpleexp: <number>=1
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    leaveblock
+  block: end
+  if_stat: else...
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'expr' line=2
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar: name='foo'
+    expr_stat: assignment k='VLOCAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      simpleexp: <number>=0
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    leaveblock
+  block: end
+  if_stat: end
+  -- STATEMENT: end 'if'
+  
+  -- STATEMENT: begin 'if' line=3
+  if_stat: if...then
+  test_then_block: test condition
+    cond: begin
+    expr:
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar: name='foo'
+    cond: end
+  test_then_block: then block
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'expr' line=3
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar: name='foo'
+    expr_stat: assignment k='VLOCAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      simpleexp: <number>=1
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    leaveblock
+  block: end
+  if_stat: elseif...then
+  test_then_block: test condition
+    cond: begin
+    expr:
+      subexpr: uop='not'
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar: name='foo'
+    cond: end
+  test_then_block: then block
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'expr' line=3
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar: name='foo'
+    expr_stat: assignment k='VLOCAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      simpleexp: <number>=0
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    leaveblock
+  block: end
+  if_stat: end
+  -- STATEMENT: end 'if'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_08.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_08.lua
new file mode 100644
index 0000000..d086c98
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_08.lua
@@ -0,0 +1,66 @@
+-- START OF SOURCE --
+do return end
+do return 123 end
+do return "foo","bar" end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'do' line=1
+  do_stat: begin
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'return' line=1
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    leaveblock
+  block: end
+  do_stat: end
+  -- STATEMENT: end 'do'
+  
+  -- STATEMENT: begin 'do' line=2
+  do_stat: begin
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'return' line=2
+    return_stat: begin
+      explist1: begin
+      expr:
+      simpleexp: <number>=123
+      explist1: end
+    return_stat: end
+    -- STATEMENT: end 'return'
+    leaveblock
+  block: end
+  do_stat: end
+  -- STATEMENT: end 'do'
+  
+  -- STATEMENT: begin 'do' line=3
+  do_stat: begin
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'return' line=3
+    return_stat: begin
+      explist1: begin
+      expr:
+      simpleexp: <string>=foo
+          codestring: "foo"
+      explist1: ',' -- continuation
+      expr:
+      simpleexp: <string>=bar
+          codestring: "bar"
+      explist1: end
+    return_stat: end
+    -- STATEMENT: end 'return'
+    leaveblock
+  block: end
+  do_stat: end
+  -- STATEMENT: end 'do'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_09.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_09.lua
new file mode 100644
index 0000000..2236388
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_09.lua
@@ -0,0 +1,97 @@
+-- START OF SOURCE --
+while true do foo=not foo end
+while foo~=42 do foo=foo-1 end
+while true do break end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'while' line=1
+  while_stat: begin/condition
+  expr:
+  simpleexp: true
+    enterblock(isbreakable=true)
+    while_stat: block
+    block: begin
+      enterblock(isbreakable=false)
+      chunk:
+      -- STATEMENT: begin 'expr' line=1
+      prefixexp: <name>
+          str_checkname: 'foo'
+          singlevar: name='foo'
+      expr_stat: assignment k='VLOCAL'
+      assignment: '=' -- RHS elements follows
+        explist1: begin
+        expr:
+          subexpr: uop='not'
+        prefixexp: <name>
+            str_checkname: 'foo'
+            singlevar: name='foo'
+        explist1: end
+      -- STATEMENT: end 'expr'
+      
+      leaveblock
+    block: end
+    leaveblock
+  while_stat: end
+  -- STATEMENT: end 'while'
+  
+  -- STATEMENT: begin 'while' line=2
+  while_stat: begin/condition
+  expr:
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+    subexpr: binop='~='
+    simpleexp: <number>=42
+    subexpr: -- evaluate
+    enterblock(isbreakable=true)
+    while_stat: block
+    block: begin
+      enterblock(isbreakable=false)
+      chunk:
+      -- STATEMENT: begin 'expr' line=2
+      prefixexp: <name>
+          str_checkname: 'foo'
+          singlevar: name='foo'
+      expr_stat: assignment k='VLOCAL'
+      assignment: '=' -- RHS elements follows
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'foo'
+            singlevar: name='foo'
+          subexpr: binop='-'
+          simpleexp: <number>=1
+          subexpr: -- evaluate
+        explist1: end
+      -- STATEMENT: end 'expr'
+      
+      leaveblock
+    block: end
+    leaveblock
+  while_stat: end
+  -- STATEMENT: end 'while'
+  
+  -- STATEMENT: begin 'while' line=3
+  while_stat: begin/condition
+  expr:
+  simpleexp: true
+    enterblock(isbreakable=true)
+    while_stat: block
+    block: begin
+      enterblock(isbreakable=false)
+      chunk:
+      -- STATEMENT: begin 'break' line=3
+      break_stat: -- break out of loop
+      -- STATEMENT: end 'break'
+      leaveblock
+    block: end
+    leaveblock
+  while_stat: end
+  -- STATEMENT: end 'while'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_10.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_10.lua
new file mode 100644
index 0000000..72f7ae3
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_10.lua
@@ -0,0 +1,106 @@
+-- START OF SOURCE --
+repeat foo=foo.."bar" until false
+repeat foo=foo/2 until foo<1
+repeat break until false
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'repeat' line=1
+  repeat_stat: begin
+    enterblock(isbreakable=true)
+    block: begin
+      enterblock(isbreakable=false)
+      chunk:
+      -- STATEMENT: begin 'expr' line=1
+      prefixexp: <name>
+          str_checkname: 'foo'
+          singlevar: name='foo'
+      expr_stat: assignment k='VLOCAL'
+      assignment: '=' -- RHS elements follows
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'foo'
+            singlevar: name='foo'
+          subexpr: binop='..'
+          simpleexp: <string>=bar
+              codestring: "bar"
+          subexpr: -- evaluate
+        explist1: end
+      -- STATEMENT: end 'expr'
+      
+      leaveblock
+    block: end
+    repeat_stat: condition
+      cond: begin
+      expr:
+      simpleexp: false
+      cond: end
+    leaveblock
+  repeat_stat: end
+  -- STATEMENT: end 'repeat'
+  
+  -- STATEMENT: begin 'repeat' line=2
+  repeat_stat: begin
+    enterblock(isbreakable=true)
+    block: begin
+      enterblock(isbreakable=false)
+      chunk:
+      -- STATEMENT: begin 'expr' line=2
+      prefixexp: <name>
+          str_checkname: 'foo'
+          singlevar: name='foo'
+      expr_stat: assignment k='VLOCAL'
+      assignment: '=' -- RHS elements follows
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'foo'
+            singlevar: name='foo'
+          subexpr: binop='/'
+          simpleexp: <number>=2
+          subexpr: -- evaluate
+        explist1: end
+      -- STATEMENT: end 'expr'
+      
+      leaveblock
+    block: end
+    repeat_stat: condition
+      cond: begin
+      expr:
+      prefixexp: <name>
+          str_checkname: 'foo'
+          singlevar: name='foo'
+        subexpr: binop='<'
+        simpleexp: <number>=1
+        subexpr: -- evaluate
+      cond: end
+    leaveblock
+  repeat_stat: end
+  -- STATEMENT: end 'repeat'
+  
+  -- STATEMENT: begin 'repeat' line=3
+  repeat_stat: begin
+    enterblock(isbreakable=true)
+    block: begin
+      enterblock(isbreakable=false)
+      chunk:
+      -- STATEMENT: begin 'break' line=3
+      break_stat: -- break out of loop
+      -- STATEMENT: end 'break'
+      leaveblock
+    block: end
+    repeat_stat: condition
+      cond: begin
+      expr:
+      simpleexp: false
+      cond: end
+    leaveblock
+  repeat_stat: end
+  -- STATEMENT: end 'repeat'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_11.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_11.lua
new file mode 100644
index 0000000..8af611b
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_11.lua
@@ -0,0 +1,175 @@
+-- START OF SOURCE --
+for i=1,10 do foo=i end
+for i=1,10,2 do break end
+for i in foo do bar=0 end
+for i,j in foo,bar do baz=0 end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'for' line=1
+  for_stat: begin
+    enterblock(isbreakable=false)
+        str_checkname: 'i'
+    for_stat: numerical loop
+      fornum: begin
+      fornum: index start
+        exp1: begin
+        expr:
+        simpleexp: <number>=1
+        exp1: end
+      fornum: index stop
+        exp1: begin
+        expr:
+        simpleexp: <number>=10
+        exp1: end
+      fornum: body
+        enterblock(isbreakable=true)
+        block: begin
+          enterblock(isbreakable=false)
+          chunk:
+          -- STATEMENT: begin 'expr' line=1
+          prefixexp: <name>
+              str_checkname: 'foo'
+              singlevar: name='foo'
+          expr_stat: assignment k='VLOCAL'
+          assignment: '=' -- RHS elements follows
+            explist1: begin
+            expr:
+            prefixexp: <name>
+                str_checkname: 'i'
+                singlevar: name='i'
+            explist1: end
+          -- STATEMENT: end 'expr'
+          
+          leaveblock
+        block: end
+        leaveblock
+      fornum: end
+    leaveblock
+  for_stat: end
+  -- STATEMENT: end 'for'
+  
+  -- STATEMENT: begin 'for' line=2
+  for_stat: begin
+    enterblock(isbreakable=false)
+        str_checkname: 'i'
+    for_stat: numerical loop
+      fornum: begin
+      fornum: index start
+        exp1: begin
+        expr:
+        simpleexp: <number>=1
+        exp1: end
+      fornum: index stop
+        exp1: begin
+        expr:
+        simpleexp: <number>=10
+        exp1: end
+      fornum: index step
+        exp1: begin
+        expr:
+        simpleexp: <number>=2
+        exp1: end
+      fornum: body
+        enterblock(isbreakable=true)
+        block: begin
+          enterblock(isbreakable=false)
+          chunk:
+          -- STATEMENT: begin 'break' line=2
+          break_stat: -- break out of loop
+          -- STATEMENT: end 'break'
+          leaveblock
+        block: end
+        leaveblock
+      fornum: end
+    leaveblock
+  for_stat: end
+  -- STATEMENT: end 'for'
+  
+  -- STATEMENT: begin 'for' line=3
+  for_stat: begin
+    enterblock(isbreakable=false)
+        str_checkname: 'i'
+    for_stat: list-based loop
+      forlist: begin
+      forlist: explist1
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'foo'
+            singlevar: name='foo'
+        explist1: end
+      forlist: body
+        enterblock(isbreakable=true)
+        block: begin
+          enterblock(isbreakable=false)
+          chunk:
+          -- STATEMENT: begin 'expr' line=3
+          prefixexp: <name>
+              str_checkname: 'bar'
+              singlevar: name='bar'
+          expr_stat: assignment k='VLOCAL'
+          assignment: '=' -- RHS elements follows
+            explist1: begin
+            expr:
+            simpleexp: <number>=0
+            explist1: end
+          -- STATEMENT: end 'expr'
+          
+          leaveblock
+        block: end
+        leaveblock
+      forlist: end
+    leaveblock
+  for_stat: end
+  -- STATEMENT: end 'for'
+  
+  -- STATEMENT: begin 'for' line=4
+  for_stat: begin
+    enterblock(isbreakable=false)
+        str_checkname: 'i'
+    for_stat: list-based loop
+      forlist: begin
+          str_checkname: 'j'
+      forlist: explist1
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'foo'
+            singlevar: name='foo'
+        explist1: ',' -- continuation
+        expr:
+        prefixexp: <name>
+            str_checkname: 'bar'
+            singlevar: name='bar'
+        explist1: end
+      forlist: body
+        enterblock(isbreakable=true)
+        block: begin
+          enterblock(isbreakable=false)
+          chunk:
+          -- STATEMENT: begin 'expr' line=4
+          prefixexp: <name>
+              str_checkname: 'baz'
+              singlevar: name='baz'
+          expr_stat: assignment k='VLOCAL'
+          assignment: '=' -- RHS elements follows
+            explist1: begin
+            expr:
+            simpleexp: <number>=0
+            explist1: end
+          -- STATEMENT: end 'expr'
+          
+          leaveblock
+        block: end
+        leaveblock
+      forlist: end
+    leaveblock
+  for_stat: end
+  -- STATEMENT: end 'for'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_12.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_12.lua
new file mode 100644
index 0000000..916fc7f
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_12.lua
@@ -0,0 +1,46 @@
+-- START OF SOURCE --
+local foo
+local foo,bar,baz
+local foo,bar="foo","bar"
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'local' line=1
+  local_stat: local statement
+    localstat: begin
+        str_checkname: 'foo'
+    localstat: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'local' line=2
+  local_stat: local statement
+    localstat: begin
+        str_checkname: 'foo'
+        str_checkname: 'bar'
+        str_checkname: 'baz'
+    localstat: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'local' line=3
+  local_stat: local statement
+    localstat: begin
+        str_checkname: 'foo'
+        str_checkname: 'bar'
+    localstat: -- assignment
+      explist1: begin
+      expr:
+      simpleexp: <string>=foo
+          codestring: "foo"
+      explist1: ',' -- continuation
+      expr:
+      simpleexp: <string>=bar
+          codestring: "bar"
+      explist1: end
+    localstat: end
+  -- STATEMENT: end 'local'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_13.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_13.lua
new file mode 100644
index 0000000..8ddd3ea
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_13.lua
@@ -0,0 +1,99 @@
+-- START OF SOURCE --
+local function foo() return end
+local function foo(a) return end
+local function foo(x,y,z) return end
+local function foo(x,...) return end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'local' line=1
+  local_stat: local function
+  localfunc: begin
+      str_checkname: 'foo'
+  localfunc: body
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=1
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  localfunc: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'local' line=2
+  local_stat: local function
+  localfunc: begin
+      str_checkname: 'foo'
+  localfunc: body
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'a'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=2
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  localfunc: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'local' line=3
+  local_stat: local function
+  localfunc: begin
+      str_checkname: 'foo'
+  localfunc: body
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'x'
+          str_checkname: 'y'
+          str_checkname: 'z'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=3
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  localfunc: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'local' line=4
+  local_stat: local function
+  localfunc: begin
+      str_checkname: 'foo'
+  localfunc: body
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'x'
+      parlist: ... (dots)
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=4
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  localfunc: end
+  -- STATEMENT: end 'local'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_14.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_14.lua
new file mode 100644
index 0000000..aa0069a
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_14.lua
@@ -0,0 +1,107 @@
+-- START OF SOURCE --
+function foo() return end
+function foo(a) return end
+function foo(x,y,z) return end
+function foo(x,...) return end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'function' line=1
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar: name='foo'
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=1
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  -- STATEMENT: begin 'function' line=2
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar: name='foo'
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'a'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=2
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  -- STATEMENT: begin 'function' line=3
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar: name='foo'
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'x'
+          str_checkname: 'y'
+          str_checkname: 'z'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=3
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  -- STATEMENT: begin 'function' line=4
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar: name='foo'
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'x'
+      parlist: ... (dots)
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=4
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_15.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_15.lua
new file mode 100644
index 0000000..73cdac3
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_15.lua
@@ -0,0 +1,135 @@
+-- START OF SOURCE --
+function foo.bar(p) return end
+function foo.bar.baz(p) return end
+function foo:bar(p) return end
+function foo.bar.baz(p) return end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'function' line=1
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar: name='foo'
+    funcname: -- '.' field
+      field: operator=.
+        checkname:
+        str_checkname: 'bar'
+        codestring: "bar"
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'p'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=1
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  -- STATEMENT: begin 'function' line=2
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar: name='foo'
+    funcname: -- '.' field
+      field: operator=.
+        checkname:
+        str_checkname: 'bar'
+        codestring: "bar"
+    funcname: -- '.' field
+      field: operator=.
+        checkname:
+        str_checkname: 'baz'
+        codestring: "baz"
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'p'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=2
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  -- STATEMENT: begin 'function' line=3
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar: name='foo'
+    funcname: -- ':' field
+      field: operator=:
+        checkname:
+        str_checkname: 'bar'
+        codestring: "bar"
+    funcname: end
+  function_stat: body needself='true'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'p'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=3
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  -- STATEMENT: begin 'function' line=4
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar: name='foo'
+    funcname: -- '.' field
+      field: operator=.
+        checkname:
+        str_checkname: 'bar'
+        codestring: "bar"
+    funcname: -- '.' field
+      field: operator=.
+        checkname:
+        str_checkname: 'baz'
+        codestring: "baz"
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'p'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=4
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_16.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_16.lua
new file mode 100644
index 0000000..b53b2fb
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_16.lua
@@ -0,0 +1,87 @@
+-- START OF SOURCE --
+foo = function() return end
+foo = function(x,y) return end
+foo = function(...) return end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'expr' line=1
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: function
+      open_func
+      body: begin
+      body: parlist
+        parlist: begin
+        parlist: end
+      body: chunk
+      chunk:
+      -- STATEMENT: begin 'return' line=1
+      return_stat: no return values
+      -- STATEMENT: end 'return'
+      body: end
+      close_func
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=2
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: function
+      open_func
+      body: begin
+      body: parlist
+        parlist: begin
+            str_checkname: 'x'
+            str_checkname: 'y'
+        parlist: end
+      body: chunk
+      chunk:
+      -- STATEMENT: begin 'return' line=2
+      return_stat: no return values
+      -- STATEMENT: end 'return'
+      body: end
+      close_func
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=3
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: function
+      open_func
+      body: begin
+      body: parlist
+        parlist: begin
+        parlist: ... (dots)
+        parlist: end
+      body: chunk
+      chunk:
+      -- STATEMENT: begin 'return' line=3
+      return_stat: no return values
+      -- STATEMENT: end 'return'
+      body: end
+      close_func
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_17.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_17.lua
new file mode 100644
index 0000000..87634d3
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_17.lua
@@ -0,0 +1,110 @@
+-- START OF SOURCE --
+foo = {}
+foo = { 1,2,3; "foo"; }
+foo = { bar=77, baz=88, }
+foo = { ["bar"]=77, ["baz"]=88, }
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'expr' line=1
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: constructor
+      constructor: begin
+      constructor: end
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=2
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: constructor
+      constructor: begin
+      listfield: expr
+      expr:
+      simpleexp: <number>=1
+      listfield: expr
+      expr:
+      simpleexp: <number>=2
+      listfield: expr
+      expr:
+      simpleexp: <number>=3
+      listfield: expr
+      expr:
+      simpleexp: <string>=foo
+          codestring: "foo"
+      constructor: end
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=3
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: constructor
+      constructor: begin
+      recfield: name
+          checkname:
+          str_checkname: 'bar'
+          codestring: "bar"
+      expr:
+      simpleexp: <number>=77
+      recfield: name
+          checkname:
+          str_checkname: 'baz'
+          codestring: "baz"
+      expr:
+      simpleexp: <number>=88
+      constructor: end
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=4
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar: name='foo'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: constructor
+      constructor: begin
+      recfield: [ exp1 ]
+        index: begin '['
+        expr:
+        simpleexp: <string>=bar
+            codestring: "bar"
+        index: end ']'
+      expr:
+      simpleexp: <number>=77
+      recfield: [ exp1 ]
+        index: begin '['
+        expr:
+        simpleexp: <string>=baz
+            codestring: "baz"
+        index: end ']'
+      expr:
+      simpleexp: <number>=88
+      constructor: end
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_01.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_01.lua
new file mode 100644
index 0000000..732b4d6
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_01.lua
@@ -0,0 +1,26 @@
+-- START OF SOURCE --
+  print(a)
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'expr' line=1
+  prefixexp: <name>
+      str_checkname: 'print'
+      singlevar(kind): 'VGLOBAL'
+  primaryexp: ( funcargs
+    funcargs: begin '('
+      explist1: begin
+      expr:
+      prefixexp: <name>
+          str_checkname: 'a'
+          singlevar(kind): 'VGLOBAL'
+      explist1: end
+    funcargs: end -- expr is a VCALL
+  expr_stat: function call k='VCALL'
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_02.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_02.lua
new file mode 100644
index 0000000..9863b4a
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_02.lua
@@ -0,0 +1,35 @@
+-- START OF SOURCE --
+  local a
+  print(a)
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'local' line=1
+  local_stat: local statement
+    localstat: begin
+        str_checkname: 'a'
+        new_localvar: 'a'
+    localstat: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'expr' line=2
+  prefixexp: <name>
+      str_checkname: 'print'
+      singlevar(kind): 'VGLOBAL'
+  primaryexp: ( funcargs
+    funcargs: begin '('
+      explist1: begin
+      expr:
+      prefixexp: <name>
+          str_checkname: 'a'
+          singlevar(kind): 'VLOCAL'
+      explist1: end
+    funcargs: end -- expr is a VCALL
+  expr_stat: function call k='VCALL'
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_03.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_03.lua
new file mode 100644
index 0000000..bc37280
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_03.lua
@@ -0,0 +1,64 @@
+-- START OF SOURCE --
+  do
+    local a
+    print(a)
+  end
+  print(a)
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'do' line=1
+  do_stat: begin
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'local' line=2
+    local_stat: local statement
+      localstat: begin
+          str_checkname: 'a'
+          new_localvar: 'a'
+      localstat: end
+    -- STATEMENT: end 'local'
+    
+    -- STATEMENT: begin 'expr' line=3
+    prefixexp: <name>
+        str_checkname: 'print'
+        singlevar(kind): 'VGLOBAL'
+    primaryexp: ( funcargs
+      funcargs: begin '('
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'a'
+            singlevar(kind): 'VLOCAL'
+        explist1: end
+      funcargs: end -- expr is a VCALL
+    expr_stat: function call k='VCALL'
+    -- STATEMENT: end 'expr'
+    
+    leaveblock
+  block: end
+  do_stat: end
+  -- STATEMENT: end 'do'
+  
+  -- STATEMENT: begin 'expr' line=5
+  prefixexp: <name>
+      str_checkname: 'print'
+      singlevar(kind): 'VGLOBAL'
+  primaryexp: ( funcargs
+    funcargs: begin '('
+      explist1: begin
+      expr:
+      prefixexp: <name>
+          str_checkname: 'a'
+          singlevar(kind): 'VGLOBAL'
+      explist1: end
+    funcargs: end -- expr is a VCALL
+  expr_stat: function call k='VCALL'
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_04.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_04.lua
new file mode 100644
index 0000000..b2bac4b
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_04.lua
@@ -0,0 +1,77 @@
+-- START OF SOURCE --
+  local a,b,c
+  do
+    local b
+    print(b)
+  end
+  print(b)
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'local' line=1
+  local_stat: local statement
+    localstat: begin
+        str_checkname: 'a'
+        new_localvar: 'a'
+        str_checkname: 'b'
+        new_localvar: 'b'
+        str_checkname: 'c'
+        new_localvar: 'c'
+    localstat: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'do' line=2
+  do_stat: begin
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'local' line=3
+    local_stat: local statement
+      localstat: begin
+          str_checkname: 'b'
+          new_localvar: 'b'
+      localstat: end
+    -- STATEMENT: end 'local'
+    
+    -- STATEMENT: begin 'expr' line=4
+    prefixexp: <name>
+        str_checkname: 'print'
+        singlevar(kind): 'VGLOBAL'
+    primaryexp: ( funcargs
+      funcargs: begin '('
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'b'
+            singlevar(kind): 'VLOCAL'
+        explist1: end
+      funcargs: end -- expr is a VCALL
+    expr_stat: function call k='VCALL'
+    -- STATEMENT: end 'expr'
+    
+    leaveblock
+  block: end
+  do_stat: end
+  -- STATEMENT: end 'do'
+  
+  -- STATEMENT: begin 'expr' line=6
+  prefixexp: <name>
+      str_checkname: 'print'
+      singlevar(kind): 'VGLOBAL'
+  primaryexp: ( funcargs
+    funcargs: begin '('
+      explist1: begin
+      expr:
+      prefixexp: <name>
+          str_checkname: 'b'
+          singlevar(kind): 'VLOCAL'
+      explist1: end
+    funcargs: end -- expr is a VCALL
+  expr_stat: function call k='VCALL'
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_05.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_05.lua
new file mode 100644
index 0000000..6885f01
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_05.lua
@@ -0,0 +1,43 @@
+-- START OF SOURCE --
+  local function foo() end
+  bar = foo
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'local' line=1
+  local_stat: local function
+  localfunc: begin
+      str_checkname: 'foo'
+      new_localvar: 'foo'
+  localfunc: body
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+      parlist: end
+    body: chunk
+    chunk:
+    body: end
+    close_func
+  localfunc: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'expr' line=2
+  prefixexp: <name>
+      str_checkname: 'bar'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VLOCAL'
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_06.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_06.lua
new file mode 100644
index 0000000..eb658ed
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_06.lua
@@ -0,0 +1,70 @@
+-- START OF SOURCE --
+  do
+    local function foo() end
+    bar = foo
+  end
+  baz = foo
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'do' line=1
+  do_stat: begin
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'local' line=2
+    local_stat: local function
+    localfunc: begin
+        str_checkname: 'foo'
+        new_localvar: 'foo'
+    localfunc: body
+      open_func
+      body: begin
+      body: parlist
+        parlist: begin
+        parlist: end
+      body: chunk
+      chunk:
+      body: end
+      close_func
+    localfunc: end
+    -- STATEMENT: end 'local'
+    
+    -- STATEMENT: begin 'expr' line=3
+    prefixexp: <name>
+        str_checkname: 'bar'
+        singlevar(kind): 'VGLOBAL'
+    expr_stat: assignment k='VGLOBAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      prefixexp: <name>
+          str_checkname: 'foo'
+          singlevar(kind): 'VLOCAL'
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    leaveblock
+  block: end
+  do_stat: end
+  -- STATEMENT: end 'do'
+  
+  -- STATEMENT: begin 'expr' line=5
+  prefixexp: <name>
+      str_checkname: 'baz'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_07.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_07.lua
new file mode 100644
index 0000000..6403234
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_07.lua
@@ -0,0 +1,84 @@
+-- START OF SOURCE --
+  local foo
+  local function bar()
+    baz = nil
+    foo = bar()
+  end
+  foo = bar
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'local' line=1
+  local_stat: local statement
+    localstat: begin
+        str_checkname: 'foo'
+        new_localvar: 'foo'
+    localstat: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'local' line=2
+  local_stat: local function
+  localfunc: begin
+      str_checkname: 'bar'
+      new_localvar: 'bar'
+  localfunc: body
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'expr' line=3
+    prefixexp: <name>
+        str_checkname: 'baz'
+        singlevar(kind): 'VGLOBAL'
+    expr_stat: assignment k='VGLOBAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      simpleexp: nil
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    -- STATEMENT: begin 'expr' line=4
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VUPVAL'
+    expr_stat: assignment k='VUPVAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      prefixexp: <name>
+          str_checkname: 'bar'
+          singlevar(kind): 'VUPVAL'
+      primaryexp: ( funcargs
+        funcargs: begin '('
+        funcargs: end -- expr is a VCALL
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    body: end
+    close_func
+  localfunc: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'expr' line=6
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VLOCAL'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    prefixexp: <name>
+        str_checkname: 'bar'
+        singlevar(kind): 'VLOCAL'
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_08.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_08.lua
new file mode 100644
index 0000000..594e267
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_08.lua
@@ -0,0 +1,159 @@
+-- START OF SOURCE --
+  local foo
+  local function bar()
+    local function baz()
+      local foo, bar
+      foo = bar
+      foo = baz
+    end
+    foo = bar
+    foo = baz
+  end
+  foo = bar
+  foo = baz
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'local' line=1
+  local_stat: local statement
+    localstat: begin
+        str_checkname: 'foo'
+        new_localvar: 'foo'
+    localstat: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'local' line=2
+  local_stat: local function
+  localfunc: begin
+      str_checkname: 'bar'
+      new_localvar: 'bar'
+  localfunc: body
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'local' line=3
+    local_stat: local function
+    localfunc: begin
+        str_checkname: 'baz'
+        new_localvar: 'baz'
+    localfunc: body
+      open_func
+      body: begin
+      body: parlist
+        parlist: begin
+        parlist: end
+      body: chunk
+      chunk:
+      -- STATEMENT: begin 'local' line=4
+      local_stat: local statement
+        localstat: begin
+            str_checkname: 'foo'
+            new_localvar: 'foo'
+            str_checkname: 'bar'
+            new_localvar: 'bar'
+        localstat: end
+      -- STATEMENT: end 'local'
+      
+      -- STATEMENT: begin 'expr' line=5
+      prefixexp: <name>
+          str_checkname: 'foo'
+          singlevar(kind): 'VLOCAL'
+      expr_stat: assignment k='VLOCAL'
+      assignment: '=' -- RHS elements follows
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'bar'
+            singlevar(kind): 'VLOCAL'
+        explist1: end
+      -- STATEMENT: end 'expr'
+      
+      -- STATEMENT: begin 'expr' line=6
+      prefixexp: <name>
+          str_checkname: 'foo'
+          singlevar(kind): 'VLOCAL'
+      expr_stat: assignment k='VLOCAL'
+      assignment: '=' -- RHS elements follows
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'baz'
+            singlevar(kind): 'VUPVAL'
+        explist1: end
+      -- STATEMENT: end 'expr'
+      
+      body: end
+      close_func
+    localfunc: end
+    -- STATEMENT: end 'local'
+    
+    -- STATEMENT: begin 'expr' line=8
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VUPVAL'
+    expr_stat: assignment k='VUPVAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      prefixexp: <name>
+          str_checkname: 'bar'
+          singlevar(kind): 'VUPVAL'
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    -- STATEMENT: begin 'expr' line=9
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VUPVAL'
+    expr_stat: assignment k='VUPVAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      prefixexp: <name>
+          str_checkname: 'baz'
+          singlevar(kind): 'VLOCAL'
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    body: end
+    close_func
+  localfunc: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'expr' line=11
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VLOCAL'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    prefixexp: <name>
+        str_checkname: 'bar'
+        singlevar(kind): 'VLOCAL'
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=12
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VLOCAL'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    prefixexp: <name>
+        str_checkname: 'baz'
+        singlevar(kind): 'VGLOBAL'
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_09.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_09.lua
new file mode 100644
index 0000000..bfa3920
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_09.lua
@@ -0,0 +1,53 @@
+-- START OF SOURCE --
+  function foo:bar()
+    print(self)
+  end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'function' line=1
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    funcname: -- ':' field
+      field: operator=:
+        checkname:
+        str_checkname: 'bar'
+        codestring: "bar"
+    funcname: end
+  function_stat: body needself='true'
+    open_func
+    body: begin
+        new_localvar: 'self'
+    body: parlist
+      parlist: begin
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'expr' line=2
+    prefixexp: <name>
+        str_checkname: 'print'
+        singlevar(kind): 'VGLOBAL'
+    primaryexp: ( funcargs
+      funcargs: begin '('
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'self'
+            singlevar(kind): 'VLOCAL'
+        explist1: end
+      funcargs: end -- expr is a VCALL
+    expr_stat: function call k='VCALL'
+    -- STATEMENT: end 'expr'
+    
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_10.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_10.lua
new file mode 100644
index 0000000..9a38883
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_10.lua
@@ -0,0 +1,49 @@
+-- START OF SOURCE --
+  function foo(...)
+    print(arg)
+  end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'function' line=1
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+      parlist: ... (dots)
+          new_localvar: 'arg'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'expr' line=2
+    prefixexp: <name>
+        str_checkname: 'print'
+        singlevar(kind): 'VGLOBAL'
+    primaryexp: ( funcargs
+      funcargs: begin '('
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'arg'
+            singlevar(kind): 'VLOCAL'
+        explist1: end
+      funcargs: end -- expr is a VCALL
+    expr_stat: function call k='VCALL'
+    -- STATEMENT: end 'expr'
+    
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_11.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_11.lua
new file mode 100644
index 0000000..e4c9e21
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_11.lua
@@ -0,0 +1,79 @@
+-- START OF SOURCE --
+  local c,d
+  function foo(a,b,c)
+    print(a,c,d,e)
+  end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'local' line=1
+  local_stat: local statement
+    localstat: begin
+        str_checkname: 'c'
+        new_localvar: 'c'
+        str_checkname: 'd'
+        new_localvar: 'd'
+    localstat: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'function' line=2
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'a'
+          new_localvar: 'a'
+          str_checkname: 'b'
+          new_localvar: 'b'
+          str_checkname: 'c'
+          new_localvar: 'c'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'expr' line=3
+    prefixexp: <name>
+        str_checkname: 'print'
+        singlevar(kind): 'VGLOBAL'
+    primaryexp: ( funcargs
+      funcargs: begin '('
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'a'
+            singlevar(kind): 'VLOCAL'
+        explist1: ',' -- continuation
+        expr:
+        prefixexp: <name>
+            str_checkname: 'c'
+            singlevar(kind): 'VLOCAL'
+        explist1: ',' -- continuation
+        expr:
+        prefixexp: <name>
+            str_checkname: 'd'
+            singlevar(kind): 'VUPVAL'
+        explist1: ',' -- continuation
+        expr:
+        prefixexp: <name>
+            str_checkname: 'e'
+            singlevar(kind): 'VGLOBAL'
+        explist1: end
+      funcargs: end -- expr is a VCALL
+    expr_stat: function call k='VCALL'
+    -- STATEMENT: end 'expr'
+    
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_12.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_12.lua
new file mode 100644
index 0000000..b278ba2
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_12.lua
@@ -0,0 +1,94 @@
+-- START OF SOURCE --
+  function foo(a,b)
+    local bar = function(c,d)
+      print(a,b,c,d)
+    end
+  end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'function' line=1
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'a'
+          new_localvar: 'a'
+          str_checkname: 'b'
+          new_localvar: 'b'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'local' line=2
+    local_stat: local statement
+      localstat: begin
+          str_checkname: 'bar'
+          new_localvar: 'bar'
+      localstat: -- assignment
+        explist1: begin
+        expr:
+        simpleexp: function
+          open_func
+          body: begin
+          body: parlist
+            parlist: begin
+                str_checkname: 'c'
+                new_localvar: 'c'
+                str_checkname: 'd'
+                new_localvar: 'd'
+            parlist: end
+          body: chunk
+          chunk:
+          -- STATEMENT: begin 'expr' line=3
+          prefixexp: <name>
+              str_checkname: 'print'
+              singlevar(kind): 'VGLOBAL'
+          primaryexp: ( funcargs
+            funcargs: begin '('
+              explist1: begin
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'a'
+                  singlevar(kind): 'VUPVAL'
+              explist1: ',' -- continuation
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'b'
+                  singlevar(kind): 'VUPVAL'
+              explist1: ',' -- continuation
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'c'
+                  singlevar(kind): 'VLOCAL'
+              explist1: ',' -- continuation
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'd'
+                  singlevar(kind): 'VLOCAL'
+              explist1: end
+            funcargs: end -- expr is a VCALL
+          expr_stat: function call k='VCALL'
+          -- STATEMENT: end 'expr'
+          
+          body: end
+          close_func
+        explist1: end
+      localstat: end
+    -- STATEMENT: end 'local'
+    
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_13.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_13.lua
new file mode 100644
index 0000000..6e4850c
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_13.lua
@@ -0,0 +1,117 @@
+-- START OF SOURCE --
+  for i = 1,10 do
+    print(i)
+  end
+  for i = 1,10,-2 do
+    print(i)
+  end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'for' line=1
+  for_stat: begin
+    enterblock(isbreakable=false)
+        str_checkname: 'i'
+    for_stat: numerical loop
+        new_localvar: 'i'
+        new_localvar: '(for limit)'
+        new_localvar: '(for step)'
+      fornum: begin
+      fornum: index start
+        exp1: begin
+        expr:
+        simpleexp: <number>=1
+        exp1: end
+      fornum: index stop
+        exp1: begin
+        expr:
+        simpleexp: <number>=10
+        exp1: end
+      fornum: body
+        enterblock(isbreakable=true)
+        block: begin
+          enterblock(isbreakable=false)
+          chunk:
+          -- STATEMENT: begin 'expr' line=2
+          prefixexp: <name>
+              str_checkname: 'print'
+              singlevar(kind): 'VGLOBAL'
+          primaryexp: ( funcargs
+            funcargs: begin '('
+              explist1: begin
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'i'
+                  singlevar(kind): 'VLOCAL'
+              explist1: end
+            funcargs: end -- expr is a VCALL
+          expr_stat: function call k='VCALL'
+          -- STATEMENT: end 'expr'
+          
+          leaveblock
+        block: end
+        leaveblock
+      fornum: end
+    leaveblock
+  for_stat: end
+  -- STATEMENT: end 'for'
+  
+  -- STATEMENT: begin 'for' line=4
+  for_stat: begin
+    enterblock(isbreakable=false)
+        str_checkname: 'i'
+    for_stat: numerical loop
+        new_localvar: 'i'
+        new_localvar: '(for limit)'
+        new_localvar: '(for step)'
+      fornum: begin
+      fornum: index start
+        exp1: begin
+        expr:
+        simpleexp: <number>=1
+        exp1: end
+      fornum: index stop
+        exp1: begin
+        expr:
+        simpleexp: <number>=10
+        exp1: end
+      fornum: index step
+        exp1: begin
+        expr:
+          subexpr: uop='-'
+        simpleexp: <number>=2
+        exp1: end
+      fornum: body
+        enterblock(isbreakable=true)
+        block: begin
+          enterblock(isbreakable=false)
+          chunk:
+          -- STATEMENT: begin 'expr' line=5
+          prefixexp: <name>
+              str_checkname: 'print'
+              singlevar(kind): 'VGLOBAL'
+          primaryexp: ( funcargs
+            funcargs: begin '('
+              explist1: begin
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'i'
+                  singlevar(kind): 'VLOCAL'
+              explist1: end
+            funcargs: end -- expr is a VCALL
+          expr_stat: function call k='VCALL'
+          -- STATEMENT: end 'expr'
+          
+          leaveblock
+        block: end
+        leaveblock
+      fornum: end
+    leaveblock
+  for_stat: end
+  -- STATEMENT: end 'for'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_14.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_14.lua
new file mode 100644
index 0000000..f80c33f
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/parser_log/sample_b_14.lua
@@ -0,0 +1,125 @@
+-- START OF SOURCE --
+  for foo in bar() do
+    print(foo)
+  end
+  for foo,bar,baz in spring() do
+    print(foo,bar,baz)
+  end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'for' line=1
+  for_stat: begin
+    enterblock(isbreakable=false)
+        str_checkname: 'foo'
+    for_stat: list-based loop
+      forlist: begin
+          new_localvar: '(for generator)'
+          new_localvar: '(for state)'
+          new_localvar: 'foo'
+      forlist: explist1
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'bar'
+            singlevar(kind): 'VGLOBAL'
+        primaryexp: ( funcargs
+          funcargs: begin '('
+          funcargs: end -- expr is a VCALL
+        explist1: end
+      forlist: body
+        enterblock(isbreakable=true)
+        block: begin
+          enterblock(isbreakable=false)
+          chunk:
+          -- STATEMENT: begin 'expr' line=2
+          prefixexp: <name>
+              str_checkname: 'print'
+              singlevar(kind): 'VGLOBAL'
+          primaryexp: ( funcargs
+            funcargs: begin '('
+              explist1: begin
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'foo'
+                  singlevar(kind): 'VLOCAL'
+              explist1: end
+            funcargs: end -- expr is a VCALL
+          expr_stat: function call k='VCALL'
+          -- STATEMENT: end 'expr'
+          
+          leaveblock
+        block: end
+        leaveblock
+      forlist: end
+    leaveblock
+  for_stat: end
+  -- STATEMENT: end 'for'
+  
+  -- STATEMENT: begin 'for' line=4
+  for_stat: begin
+    enterblock(isbreakable=false)
+        str_checkname: 'foo'
+    for_stat: list-based loop
+      forlist: begin
+          new_localvar: '(for generator)'
+          new_localvar: '(for state)'
+          new_localvar: 'foo'
+          str_checkname: 'bar'
+          new_localvar: 'bar'
+          str_checkname: 'baz'
+          new_localvar: 'baz'
+      forlist: explist1
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'spring'
+            singlevar(kind): 'VGLOBAL'
+        primaryexp: ( funcargs
+          funcargs: begin '('
+          funcargs: end -- expr is a VCALL
+        explist1: end
+      forlist: body
+        enterblock(isbreakable=true)
+        block: begin
+          enterblock(isbreakable=false)
+          chunk:
+          -- STATEMENT: begin 'expr' line=5
+          prefixexp: <name>
+              str_checkname: 'print'
+              singlevar(kind): 'VGLOBAL'
+          primaryexp: ( funcargs
+            funcargs: begin '('
+              explist1: begin
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'foo'
+                  singlevar(kind): 'VLOCAL'
+              explist1: ',' -- continuation
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'bar'
+                  singlevar(kind): 'VLOCAL'
+              explist1: ',' -- continuation
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'baz'
+                  singlevar(kind): 'VLOCAL'
+              explist1: end
+            funcargs: end -- expr is a VCALL
+          expr_stat: function call k='VCALL'
+          -- STATEMENT: end 'expr'
+          
+          leaveblock
+        block: end
+        leaveblock
+      forlist: end
+    leaveblock
+  for_stat: end
+  -- STATEMENT: end 'for'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/sample.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/sample.lua
new file mode 100644
index 0000000..dc6eaee
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/sample.lua
@@ -0,0 +1,3 @@
+local a = 47
+local b = "hello, world!"
+print(a, b)
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_llex_mk2.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_llex_mk2.lua
new file mode 100644
index 0000000..ff8cec5
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_llex_mk2.lua
@@ -0,0 +1,499 @@
+--[[--------------------------------------------------------------------
+
+  test_llex.lua
+  Test for llex.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- if BRIEF is not set to false, auto-test will silently succeed
+------------------------------------------------------------------------
+BRIEF = true  -- if set to true, messages are less verbose
+
+local zio_init = require("../lzio_mk2")
+local lex_init = require("../llex_mk2")
+
+------------------------------------------------------------------------
+-- simple manual tests
+------------------------------------------------------------------------
+
+--[[
+local function dump(z, source)
+  local luaX = lex_init(z, source)
+  while true do
+    local tok, seminfo = luaX:lex()
+    if tok == "<name>" then
+      seminfo = " "..seminfo
+    elseif tok == "<number>" then
+      seminfo = " "..seminfo
+    elseif tok == "<string>" then
+      seminfo = " '"..seminfo.."'"
+    else
+      seminfo = ""
+    end
+    io.stdout:write(tok..seminfo.."\n")
+    if tok == "<eof>" then break end
+  end
+end
+
+local function try_string(chunk)
+  dump(zio_init(chunk), "=string")
+end
+local function try_file(filename)
+  local f = "@"..filename
+  dump(zio_init(f), f)
+end
+
+z = try_string("local c = z:getc()")
+z = try_file("test_lzio_mk2.lua")
+z = try_file("test_llex_mk2.lua")
+os.exit()
+--]]
+
+------------------------------------------------------------------------
+-- auto-testing of simple test cases to validate lexer behaviour:
+-- * NOTE coverage has not been checked; not comprehensive
+-- * only test cases with non-empty comments are processed
+-- * if no result, then the output is displayed for manual decision
+--   (output may be used to set expected success or fail text)
+-- * cases expected to be successful may be a partial match
+-- * cases expected to fail may also be a partial match
+------------------------------------------------------------------------
+
+-- [[
+local function auto_test()
+  local PASS, FAIL = true, false
+  ------------------------------------------------------------------
+  -- table of test cases
+  ------------------------------------------------------------------
+  local test_cases =
+  {
+    -------------------------------------------------------------
+  --{ "comment",  -- comment about the test
+  --  "chunk",    -- chunk to test
+  --  PASS,       -- PASS or FAIL outcome
+  --  "output",   -- output to compare against
+  --},
+    -------------------------------------------------------------
+    { "empty chunk string, test EOS",
+      "",
+      PASS, "1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "line number counting",
+      "\n\n\r\n",
+      PASS, "4 <eof>",
+    },
+    -------------------------------------------------------------
+    { "various whitespaces",
+      "  \n\t\t\n  \t  \t \n\n",
+      PASS, "5 <eof>",
+    },
+    -------------------------------------------------------------
+    { "short comment ending in EOS",
+      "-- moo moo",
+      PASS, "1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "short comment ending in newline",
+      "-- moo moo\n",
+      PASS, "2 <eof>",
+    },
+    -------------------------------------------------------------
+    { "several lines of short comments",
+      "--moo\n-- moo moo\n\n--\tmoo\n",
+      PASS, "5 <eof>",
+    },
+    -------------------------------------------------------------
+    { "basic block comment",
+      "--[[bovine]]",
+      PASS, "1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 1",
+      "--[[bovine",
+      FAIL, ":1: unfinished long comment near '<eof>'",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 2",
+      "--[[bovine]",
+      FAIL, ":1: unfinished long comment near '<eof>'",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 3",
+      "--[[bovine\nmoo moo\nwoof",
+      FAIL, ":3: unfinished long comment near '<eof>'",
+    },
+    -------------------------------------------------------------
+    { "basic long string",
+      "\n[[bovine]]\n",
+      PASS, "2 <string> = bovine\n3 <eof>",
+    },
+    -------------------------------------------------------------
+    { "first newline consumed in long string",
+      "[[\nmoo]]",
+      PASS, "2 <string> = moo\n2 <eof>",
+    },
+    -------------------------------------------------------------
+    { "multiline long string",
+      "[[moo\nmoo moo\n]]",
+      PASS, "3 <string> = moo\nmoo moo\n\n3 <eof>",
+    },
+    -------------------------------------------------------------
+    { "unterminated long string 1",
+      "\n[[\nbovine",
+      FAIL, ":3: unfinished long string near '<eof>'",
+    },
+    -------------------------------------------------------------
+    { "unterminated long string 2",
+      "[[bovine]",
+      FAIL, ":1: unfinished long string near '<eof>'",
+    },
+    -------------------------------------------------------------
+    { "unterminated long string 3",
+      "[[[[ \n",
+      FAIL, ":2: unfinished long string near '<eof>'",
+    },
+    -------------------------------------------------------------
+    { "nested long string 1",
+      "[[moo[[moo]]moo]]",
+      PASS, "moo[[moo]]moo",
+    },
+    -------------------------------------------------------------
+    { "nested long string 2",
+      "[[moo[[moo[[[[]]]]moo]]moo]]",
+      PASS, "moo[[moo[[[[]]]]moo]]moo",
+    },
+    -------------------------------------------------------------
+    { "nested long string 3",
+      "[[[[[[]]]][[[[]]]]]]",
+      PASS, "[[[[]]]][[[[]]]]",
+    },
+    -------------------------------------------------------------
+    { "brackets in long strings 1",
+      "[[moo[moo]]",
+      PASS, "moo[moo",
+    },
+    -------------------------------------------------------------
+    { "brackets in long strings 2",
+      "[[moo[[moo]moo]]moo]]",
+      PASS, "moo[[moo]moo]]moo",
+    },
+    -------------------------------------------------------------
+    { "unprocessed escapes in long strings",
+      [[ [[\a\b\f\n\r\t\v\123]] ]],
+      PASS, [[\a\b\f\n\r\t\v\123]],
+    },
+    -------------------------------------------------------------
+    { "unbalanced long string",
+      "[[moo]]moo]]",
+      PASS, "1 <string> = moo\n1 <name> = moo\n1 CHAR = ']'\n1 CHAR = ']'\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 1",
+      "and break do else",
+      PASS, "1 and\n1 break\n1 do\n1 else\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 2",
+      "elseif end false for",
+      PASS, "1 elseif\n1 end\n1 false\n1 for\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 3",
+      "function if in local nil",
+      PASS, "1 function\n1 if\n1 in\n1 local\n1 nil\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 4",
+      "not or repeat return",
+      PASS, "1 not\n1 or\n1 repeat\n1 return\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 5",
+      "then true until while",
+      PASS, "1 then\n1 true\n1 until\n1 while\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "concat and dots",
+      ".. ...",
+      PASS, "1 ..\n1 ...\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "shbang handling 1",
+      "#blahblah",
+      PASS, "1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "shbang handling 2",
+      "#blahblah\nmoo moo\n",
+      PASS, "2 <name> = moo\n2 <name> = moo\n3 <eof>",
+    },
+    -------------------------------------------------------------
+    { "empty string",
+      [['']],
+      PASS, "1 <string> = \n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "single-quoted string",
+      [['bovine']],
+      PASS, "1 <string> = bovine\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "double-quoted string",
+      [["bovine"]],
+      PASS, "1 <string> = bovine\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "unterminated string 1",
+      [['moo ]],
+      FAIL, ":1: unfinished string near '<eof>'",
+    },
+    -------------------------------------------------------------
+    { "unterminated string 2",
+      [["moo \n]],
+      FAIL, ":1: unfinished string near '<eof>'",
+    },
+    -------------------------------------------------------------
+    { "escaped newline in string, line number counted",
+      "\"moo\\\nmoo\\\nmoo\"",
+      PASS, "3 <string> = moo\nmoo\nmoo\n3 <eof>",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 1",
+      [["moo\amoo"]],
+      PASS, "1 <string> = moo\amoo",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 2",
+      [["moo\bmoo"]],
+      PASS, "1 <string> = moo\bmoo",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 3",
+      [["moo\f\n\r\t\vmoo"]],
+      PASS, "1 <string> = moo\f\n\r\t\vmoo",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 4",
+      [["\\ \" \' \? \[ \]"]],
+      PASS, "1 <string> = \\ \" \' \? \[ \]",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 5",
+      [["\z \k \: \;"]],
+      PASS, "1 <string> = z k : ;",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 6",
+      [["\8 \65 \160 \180K \097097"]],
+      PASS, "1 <string> = \8 \65 \160 \180K \097097\n",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 7",
+      [["\666"]],
+      FAIL, ":1: escape sequence too large near '\"'",
+    },
+    -------------------------------------------------------------
+    { "simple numbers",
+      "123 123+",
+      PASS, "1 <number> = 123\n1 <number> = 123\n1 CHAR = '+'\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "longer numbers",
+      "1234567890 12345678901234567890",
+      PASS, "1 <number> = 1234567890\n1 <number> = 1.2345678901235e+19\n",
+    },
+    -------------------------------------------------------------
+    { "fractional numbers",
+      ".123 .12345678901234567890",
+      PASS, "1 <number> = 0.123\n1 <number> = 0.12345678901235\n",
+    },
+    -------------------------------------------------------------
+    { "more numbers with decimal points",
+      "12345.67890 1.1.",
+      PASS, "1 <number> = 12345.6789\n1 <number> = 1.1\n1 CHAR = '.'\n",
+    },
+    -------------------------------------------------------------
+    { "double decimal points",
+      ".1.1",
+      FAIL, ":1: malformed number near '.1.1'",
+    },
+    -------------------------------------------------------------
+    { "double dots within numbers",
+      "1..1",
+      FAIL, ":1: ambiguous syntax (dots follows digits) near '1..'",
+    },
+    -------------------------------------------------------------
+    { "incomplete exponential numbers",
+      "123e",
+      FAIL, ":1: malformed number near '123e'",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 1",
+      "1234e5 1234e5.",
+      PASS, "1 <number> = 123400000\n1 <number> = 123400000\n1 CHAR = '.'",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 2",
+      "1234e56 1.23e123",
+      PASS, "1 <number> = 1.234e+59\n1 <number> = 1.23e+123\n",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 3",
+      "12.34e+",
+      FAIL, ":1: malformed number near '12.34e+'",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 4",
+      "12.34e+5 123.4e-5 1234.E+5",
+      PASS, "1 <number> = 1234000\n1 <number> = 0.001234\n1 <number> = 123400000\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 1",
+      "= > < ~",
+      PASS, "1 CHAR = '='\n1 CHAR = '>'\n1 CHAR = '<'\n1 CHAR = '~'\n",
+    },
+    -------------------------------------------------------------
+    { "double character symbols",
+      "== >= <= ~=",
+      PASS, "1 ==\n1 >=\n1 <=\n1 ~=\n",
+    },
+    -------------------------------------------------------------
+    { "simple identifiers",
+      "abc ABC",
+      PASS, "1 <name> = abc\n1 <name> = ABC\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "more identifiers",
+      "_abc _ABC",
+      PASS, "1 <name> = _abc\n1 <name> = _ABC\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "still more identifiers",
+      "_aB_ _123",
+      PASS, "1 <name> = _aB_\n1 <name> = _123\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "invalid control character",
+      "\4",
+      FAIL, ":1: invalid control char near 'char(4)'",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 2",
+      "` ! @ $ %",
+      PASS, "1 CHAR = '`'\n1 CHAR = '!'\n1 CHAR = '@'\n1 CHAR = '$'\n1 CHAR = '%'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 3",
+      "^ & * ( )",
+      PASS, "1 CHAR = '^'\n1 CHAR = '&'\n1 CHAR = '*'\n1 CHAR = '('\n1 CHAR = ')'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 4",
+      "_ - + \\ |",
+      PASS, "1 <name> = _\n1 CHAR = '-'\n1 CHAR = '+'\n1 CHAR = '\\'\n1 CHAR = '|'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 5",
+      "{ } [ ] :",
+      PASS, "1 CHAR = '{'\n1 CHAR = '}'\n1 CHAR = '['\n1 CHAR = ']'\n1 CHAR = ':'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 6",
+      "; , . / ?",
+      PASS, "1 CHAR = ';'\n1 CHAR = ','\n1 CHAR = '.'\n1 CHAR = '/'\n1 CHAR = '?'\n",
+    },
+    -------------------------------------------------------------
+  }
+  ------------------------------------------------------------------
+  -- perform a test case
+  ------------------------------------------------------------------
+  function do_test_case(count, test_case)
+    if comment == "" then return end  -- skip empty entries
+    local comment, chunk, outcome, matcher = unpack(test_case)
+    local result = PASS
+    local output = ""
+    -- initialize lexer
+    local z = zio_init(chunk)
+    local luaX = lex_init(z, "=test")
+    -- lexer test loop
+    local status, token, seminfo
+    repeat
+      -- protected call
+      status, token, seminfo = pcall(luaX.lex, luaX)
+      output = output..luaX.lineno.." "
+      if status then
+        -- successful call
+        if string.len(token) > 1 then
+          if token == "<name>"
+             or token == "<number>"
+             or token == "<string>" then
+            token = token.." = "..seminfo
+          end
+        elseif string.byte(token) >= 32 then  -- displayable chars
+          token = "CHAR = '"..token.."'"
+        else  -- control characters
+          token = "CHAR = (".. string.byte(token)..")"
+        end
+        output = output..token.."\n"
+      else
+        -- failed call
+        output = output..token  -- token is the error message
+        result = FAIL
+        break
+      end
+    until token == "<eof>"
+    -- decision making and reporting
+    local head = "Test "..count..": "..comment
+    if matcher == "" then
+      -- nothing to check against, display for manual check
+      print(head.."\nMANUAL please check manually"..
+            "\n--chunk---------------------------------\n"..chunk..
+            "\n--actual--------------------------------\n"..output..
+            "\n\n")
+      return
+    else
+      if outcome == PASS then
+        -- success expected, may be a partial match
+        if string.find(output, matcher, 1, 1) and result == PASS then
+          if not BRIEF then print(head.."\nOK expected success\n") end
+          return
+        end
+      else
+        -- failure expected, may be a partial match
+        if string.find(output, matcher, 1, 1) and result == FAIL then
+          if not BRIEF then print(head.."\nOK expected failure\n") end
+          return
+        end
+      end
+      -- failed because of unmatched string or boolean result
+      local function passfail(status)
+        if status == PASS then return "PASS" else return "FAIL" end
+      end
+      print(head.." *FAILED*"..
+            "\noutcome="..passfail(outcome)..
+            "\nactual= "..passfail(result)..
+            "\n--chunk---------------------------------\n"..chunk..
+            "\n--expected------------------------------\n"..matcher..
+            "\n--actual--------------------------------\n"..output..
+            "\n\n")
+    end
+  end
+  ------------------------------------------------------------------
+  -- perform auto testing
+  ------------------------------------------------------------------
+  for i,test_case in ipairs(test_cases) do
+    do_test_case(i, test_case)
+  end
+end
+
+auto_test()
+--]]
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_llex_mk3.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_llex_mk3.lua
new file mode 100644
index 0000000..8b0eec9
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_llex_mk3.lua
@@ -0,0 +1,500 @@
+--[[--------------------------------------------------------------------
+
+  test_llex.lua
+  Test for llex.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- if BRIEF is not set to false, auto-test will silently succeed
+------------------------------------------------------------------------
+BRIEF = true  -- if set to true, messages are less verbose
+
+local lex_init = require("../llex_mk3")
+
+------------------------------------------------------------------------
+-- simple manual tests
+------------------------------------------------------------------------
+
+--[[
+local function dump(z, source)
+  local luaX = lex_init(z, source)
+  while true do
+    local tok, seminfo = luaX:lex()
+    if tok == "<name>" then
+      seminfo = " "..seminfo
+    elseif tok == "<number>" then
+      seminfo = " "..seminfo
+    elseif tok == "<string>" then
+      seminfo = " '"..seminfo.."'"
+    else
+      seminfo = ""
+    end
+    io.stdout:write(tok..seminfo.."\n")
+    if tok == "<eof>" then break end
+  end
+end
+
+local function try_string(chunk)
+  dump(chunk, "=string")
+end
+local function try_file(filename)
+  local inf = io.open(filename, "r")
+  if not inf then error("file not found") end
+  local data = inf:read("*a")
+  inf:close()
+  dump(data, "@"..filename)
+end
+
+z = try_string("local c = z:getc()")
+z = try_file("test_lzio_mk2.lua")
+z = try_file("test_llex_mk2.lua")
+os.exit()
+--]]
+
+------------------------------------------------------------------------
+-- auto-testing of simple test cases to validate lexer behaviour:
+-- * NOTE coverage has not been checked; not comprehensive
+-- * only test cases with non-empty comments are processed
+-- * if no result, then the output is displayed for manual decision
+--   (output may be used to set expected success or fail text)
+-- * cases expected to be successful may be a partial match
+-- * cases expected to fail may also be a partial match
+------------------------------------------------------------------------
+
+-- [[
+local function auto_test()
+  local PASS, FAIL = true, false
+  ------------------------------------------------------------------
+  -- table of test cases
+  ------------------------------------------------------------------
+  local test_cases =
+  {
+    -------------------------------------------------------------
+  --{ "comment",  -- comment about the test
+  --  "chunk",    -- chunk to test
+  --  PASS,       -- PASS or FAIL outcome
+  --  "output",   -- output to compare against
+  --},
+    -------------------------------------------------------------
+    { "empty chunk string, test EOS",
+      "",
+      PASS, "1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "line number counting",
+      "\n\n\r\n",
+      PASS, "4 <eof>",
+    },
+    -------------------------------------------------------------
+    { "various whitespaces",
+      "  \n\t\t\n  \t  \t \n\n",
+      PASS, "5 <eof>",
+    },
+    -------------------------------------------------------------
+    { "short comment ending in EOS",
+      "-- moo moo",
+      PASS, "1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "short comment ending in newline",
+      "-- moo moo\n",
+      PASS, "2 <eof>",
+    },
+    -------------------------------------------------------------
+    { "several lines of short comments",
+      "--moo\n-- moo moo\n\n--\tmoo\n",
+      PASS, "5 <eof>",
+    },
+    -------------------------------------------------------------
+    { "basic block comment",
+      "--[[bovine]]",
+      PASS, "1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 1",
+      "--[[bovine",
+      FAIL, ":1: unfinished long comment",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 2",
+      "--[[bovine]",
+      FAIL, ":1: unfinished long comment",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 3",
+      "--[[bovine\nmoo moo\nwoof",
+      FAIL, ":3: unfinished long comment",
+    },
+    -------------------------------------------------------------
+    { "basic long string",
+      "\n[[bovine]]\n",
+      PASS, "2 <string> = bovine\n3 <eof>",
+    },
+    -------------------------------------------------------------
+    { "first newline consumed in long string",
+      "[[\nmoo]]",
+      PASS, "2 <string> = moo\n2 <eof>",
+    },
+    -------------------------------------------------------------
+    { "multiline long string",
+      "[[moo\nmoo moo\n]]",
+      PASS, "3 <string> = moo\nmoo moo\n\n3 <eof>",
+    },
+    -------------------------------------------------------------
+    { "unterminated long string 1",
+      "\n[[\nbovine",
+      FAIL, ":3: unfinished long string",
+    },
+    -------------------------------------------------------------
+    { "unterminated long string 2",
+      "[[bovine]",
+      FAIL, ":1: unfinished long string",
+    },
+    -------------------------------------------------------------
+    { "unterminated long string 3",
+      "[[[[ \n",
+      FAIL, ":2: unfinished long string",
+    },
+    -------------------------------------------------------------
+    { "nested long string 1",
+      "[[moo[[moo]]moo]]",
+      PASS, "moo[[moo]]moo",
+    },
+    -------------------------------------------------------------
+    { "nested long string 2",
+      "[[moo[[moo[[[[]]]]moo]]moo]]",
+      PASS, "moo[[moo[[[[]]]]moo]]moo",
+    },
+    -------------------------------------------------------------
+    { "nested long string 3",
+      "[[[[[[]]]][[[[]]]]]]",
+      PASS, "[[[[]]]][[[[]]]]",
+    },
+    -------------------------------------------------------------
+    { "brackets in long strings 1",
+      "[[moo[moo]]",
+      PASS, "moo[moo",
+    },
+    -------------------------------------------------------------
+    { "brackets in long strings 2",
+      "[[moo[[moo]moo]]moo]]",
+      PASS, "moo[[moo]moo]]moo",
+    },
+    -------------------------------------------------------------
+    { "unprocessed escapes in long strings",
+      [[ [[\a\b\f\n\r\t\v\123]] ]],
+      PASS, [[\a\b\f\n\r\t\v\123]],
+    },
+    -------------------------------------------------------------
+    { "unbalanced long string",
+      "[[moo]]moo]]",
+      PASS, "1 <string> = moo\n1 <name> = moo\n1 CHAR = ']'\n1 CHAR = ']'\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 1",
+      "and break do else",
+      PASS, "1 and\n1 break\n1 do\n1 else\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 2",
+      "elseif end false for",
+      PASS, "1 elseif\n1 end\n1 false\n1 for\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 3",
+      "function if in local nil",
+      PASS, "1 function\n1 if\n1 in\n1 local\n1 nil\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 4",
+      "not or repeat return",
+      PASS, "1 not\n1 or\n1 repeat\n1 return\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 5",
+      "then true until while",
+      PASS, "1 then\n1 true\n1 until\n1 while\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "concat and dots",
+      ".. ...",
+      PASS, "1 ..\n1 ...\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "shbang handling 1",
+      "#blahblah",
+      PASS, "1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "shbang handling 2",
+      "#blahblah\nmoo moo\n",
+      PASS, "2 <name> = moo\n2 <name> = moo\n3 <eof>",
+    },
+    -------------------------------------------------------------
+    { "empty string",
+      [['']],
+      PASS, "1 <string> = \n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "single-quoted string",
+      [['bovine']],
+      PASS, "1 <string> = bovine\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "double-quoted string",
+      [["bovine"]],
+      PASS, "1 <string> = bovine\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "unterminated string 1",
+      [['moo ]],
+      FAIL, ":1: unfinished string",
+    },
+    -------------------------------------------------------------
+    { "unterminated string 2",
+      [["moo \n]],
+      FAIL, ":1: unfinished string",
+    },
+    -------------------------------------------------------------
+    { "escaped newline in string, line number counted",
+      "\"moo\\\nmoo\\\nmoo\"",
+      PASS, "3 <string> = moo\nmoo\nmoo\n3 <eof>",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 1",
+      [["moo\amoo"]],
+      PASS, "1 <string> = moo\amoo",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 2",
+      [["moo\bmoo"]],
+      PASS, "1 <string> = moo\bmoo",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 3",
+      [["moo\f\n\r\t\vmoo"]],
+      PASS, "1 <string> = moo\f\n\r\t\vmoo",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 4",
+      [["\\ \" \' \? \[ \]"]],
+      PASS, "1 <string> = \\ \" \' \? \[ \]",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 5",
+      [["\z \k \: \;"]],
+      PASS, "1 <string> = z k : ;",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 6",
+      [["\8 \65 \160 \180K \097097"]],
+      PASS, "1 <string> = \8 \65 \160 \180K \097097\n",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 7",
+      [["\666"]],
+      FAIL, ":1: escape sequence too large",
+    },
+    -------------------------------------------------------------
+    { "simple numbers",
+      "123 123+",
+      PASS, "1 <number> = 123\n1 <number> = 123\n1 CHAR = '+'\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "longer numbers",
+      "1234567890 12345678901234567890",
+      PASS, "1 <number> = 1234567890\n1 <number> = 1.2345678901235e+19\n",
+    },
+    -------------------------------------------------------------
+    { "fractional numbers",
+      ".123 .12345678901234567890",
+      PASS, "1 <number> = 0.123\n1 <number> = 0.12345678901235\n",
+    },
+    -------------------------------------------------------------
+    { "more numbers with decimal points",
+      "12345.67890 1.1.",
+      PASS, "1 <number> = 12345.6789\n1 <number> = 1.1\n1 CHAR = '.'\n",
+    },
+    -------------------------------------------------------------
+    { "double decimal points",
+      ".1.1",
+      FAIL, ":1: malformed number",
+    },
+    -------------------------------------------------------------
+    { "double dots within numbers",
+      "1..1",
+      FAIL, ":1: ambiguous syntax (dots follows digits)",
+    },
+    -------------------------------------------------------------
+    { "incomplete exponential numbers",
+      "123e",
+      FAIL, ":1: malformed number",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 1",
+      "1234e5 1234e5.",
+      PASS, "1 <number> = 123400000\n1 <number> = 123400000\n1 CHAR = '.'",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 2",
+      "1234e56 1.23e123",
+      PASS, "1 <number> = 1.234e+59\n1 <number> = 1.23e+123\n",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 3",
+      "12.34e+",
+      FAIL, ":1: malformed number",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 4",
+      "12.34e+5 123.4e-5 1234.E+5",
+      PASS, "1 <number> = 1234000\n1 <number> = 0.001234\n1 <number> = 123400000\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 1",
+      "= > < ~",
+      PASS, "1 CHAR = '='\n1 CHAR = '>'\n1 CHAR = '<'\n1 CHAR = '~'\n",
+    },
+    -------------------------------------------------------------
+    { "double character symbols",
+      "== >= <= ~=",
+      PASS, "1 ==\n1 >=\n1 <=\n1 ~=\n",
+    },
+    -------------------------------------------------------------
+    { "simple identifiers",
+      "abc ABC",
+      PASS, "1 <name> = abc\n1 <name> = ABC\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "more identifiers",
+      "_abc _ABC",
+      PASS, "1 <name> = _abc\n1 <name> = _ABC\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "still more identifiers",
+      "_aB_ _123",
+      PASS, "1 <name> = _aB_\n1 <name> = _123\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "invalid control character",
+      "\4",
+      FAIL, ":1: invalid control char",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 2",
+      "` ! @ $ %",
+      PASS, "1 CHAR = '`'\n1 CHAR = '!'\n1 CHAR = '@'\n1 CHAR = '$'\n1 CHAR = '%'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 3",
+      "^ & * ( )",
+      PASS, "1 CHAR = '^'\n1 CHAR = '&'\n1 CHAR = '*'\n1 CHAR = '('\n1 CHAR = ')'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 4",
+      "_ - + \\ |",
+      PASS, "1 <name> = _\n1 CHAR = '-'\n1 CHAR = '+'\n1 CHAR = '\\'\n1 CHAR = '|'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 5",
+      "{ } [ ] :",
+      PASS, "1 CHAR = '{'\n1 CHAR = '}'\n1 CHAR = '['\n1 CHAR = ']'\n1 CHAR = ':'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 6",
+      "; , . / ?",
+      PASS, "1 CHAR = ';'\n1 CHAR = ','\n1 CHAR = '.'\n1 CHAR = '/'\n1 CHAR = '?'\n",
+    },
+    -------------------------------------------------------------
+  }
+  ------------------------------------------------------------------
+  -- perform a test case
+  ------------------------------------------------------------------
+  function do_test_case(count, test_case)
+    if comment == "" then return end  -- skip empty entries
+    local comment, chunk, outcome, matcher = unpack(test_case)
+    local result = PASS
+    local output = ""
+    -- initialize lexer
+    local luaX = lex_init(chunk, "=test")
+    -- lexer test loop
+    local status, token, seminfo
+    repeat
+      -- protected call
+      status, token, seminfo = pcall(luaX.lex, luaX)
+      output = output..luaX.ln.." "
+      if status then
+        -- successful call
+        if string.len(token) > 1 then
+          if token == "<name>"
+             or token == "<number>"
+             or token == "<string>" then
+            token = token.." = "..seminfo
+          end
+        elseif string.byte(token) >= 32 then  -- displayable chars
+          token = "CHAR = '"..token.."'"
+        else  -- control characters
+          token = "CHAR = (".. string.byte(token)..")"
+        end
+        output = output..token.."\n"
+      else
+        -- failed call
+        output = output..token  -- token is the error message
+        result = FAIL
+        break
+      end
+    until token == "<eof>"
+    -- decision making and reporting
+    local head = "Test "..count..": "..comment
+    if matcher == "" then
+      -- nothing to check against, display for manual check
+      print(head.."\nMANUAL please check manually"..
+            "\n--chunk---------------------------------\n"..chunk..
+            "\n--actual--------------------------------\n"..output..
+            "\n\n")
+      return
+    else
+      if outcome == PASS then
+        -- success expected, may be a partial match
+        if string.find(output, matcher, 1, 1) and result == PASS then
+          if not BRIEF then print(head.."\nOK expected success\n") end
+          return
+        end
+      else
+        -- failure expected, may be a partial match
+        if string.find(output, matcher, 1, 1) and result == FAIL then
+          if not BRIEF then print(head.."\nOK expected failure\n") end
+          return
+        end
+      end
+      -- failed because of unmatched string or boolean result
+      local function passfail(status)
+        if status == PASS then return "PASS" else return "FAIL" end
+      end
+      print(head.." *FAILED*"..
+            "\noutcome="..passfail(outcome)..
+            "\nactual= "..passfail(result)..
+            "\n--chunk---------------------------------\n"..chunk..
+            "\n--expected------------------------------\n"..matcher..
+            "\n--actual--------------------------------\n"..output..
+            "\n\n")
+    end
+  end
+  ------------------------------------------------------------------
+  -- perform auto testing
+  ------------------------------------------------------------------
+  for i,test_case in ipairs(test_cases) do
+    do_test_case(i, test_case)
+  end
+end
+
+auto_test()
+--]]
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_llex_mk4.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_llex_mk4.lua
new file mode 100644
index 0000000..316a9bf
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_llex_mk4.lua
@@ -0,0 +1,499 @@
+--[[--------------------------------------------------------------------
+
+  test_llex.lua
+  Test for llex.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- if BRIEF is not set to false, auto-test will silently succeed
+------------------------------------------------------------------------
+BRIEF = true  -- if set to true, messages are less verbose
+
+local zio_init = require("../lzio_mk4")
+local lex_init = require("../llex_mk4")
+
+------------------------------------------------------------------------
+-- simple manual tests
+------------------------------------------------------------------------
+
+--[[
+local function dump(z, source)
+  local luaX = lex_init(z, source)
+  while true do
+    local tok, seminfo = luaX:lex()
+    if tok == "<name>" then
+      seminfo = " "..seminfo
+    elseif tok == "<number>" then
+      seminfo = " "..seminfo
+    elseif tok == "<string>" then
+      seminfo = " '"..seminfo.."'"
+    else
+      seminfo = ""
+    end
+    io.stdout:write(tok..seminfo.."\n")
+    if tok == "<eof>" then break end
+  end
+end
+
+local function try_string(chunk)
+  dump(zio_init(chunk), "=string")
+end
+local function try_file(filename)
+  local f = "@"..filename
+  dump(zio_init(f), f)
+end
+
+z = try_string("local c = z:getc()")
+z = try_file("test_lzio_mk2.lua")
+z = try_file("test_llex_mk2.lua")
+os.exit()
+--]]
+
+------------------------------------------------------------------------
+-- auto-testing of simple test cases to validate lexer behaviour:
+-- * NOTE coverage has not been checked; not comprehensive
+-- * only test cases with non-empty comments are processed
+-- * if no result, then the output is displayed for manual decision
+--   (output may be used to set expected success or fail text)
+-- * cases expected to be successful may be a partial match
+-- * cases expected to fail may also be a partial match
+------------------------------------------------------------------------
+
+-- [[
+local function auto_test()
+  local PASS, FAIL = true, false
+  ------------------------------------------------------------------
+  -- table of test cases
+  ------------------------------------------------------------------
+  local test_cases =
+  {
+    -------------------------------------------------------------
+  --{ "comment",  -- comment about the test
+  --  "chunk",    -- chunk to test
+  --  PASS,       -- PASS or FAIL outcome
+  --  "output",   -- output to compare against
+  --},
+    -------------------------------------------------------------
+    { "empty chunk string, test EOS",
+      "",
+      PASS, "1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "line number counting",
+      "\n\n\r\n",
+      PASS, "4 <eof>",
+    },
+    -------------------------------------------------------------
+    { "various whitespaces",
+      "  \n\t\t\n  \t  \t \n\n",
+      PASS, "5 <eof>",
+    },
+    -------------------------------------------------------------
+    { "short comment ending in EOS",
+      "-- moo moo",
+      PASS, "1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "short comment ending in newline",
+      "-- moo moo\n",
+      PASS, "2 <eof>",
+    },
+    -------------------------------------------------------------
+    { "several lines of short comments",
+      "--moo\n-- moo moo\n\n--\tmoo\n",
+      PASS, "5 <eof>",
+    },
+    -------------------------------------------------------------
+    { "basic block comment",
+      "--[[bovine]]",
+      PASS, "1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 1",
+      "--[[bovine",
+      FAIL, ":1: unfinished long comment",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 2",
+      "--[[bovine]",
+      FAIL, ":1: unfinished long comment",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 3",
+      "--[[bovine\nmoo moo\nwoof",
+      FAIL, ":3: unfinished long comment",
+    },
+    -------------------------------------------------------------
+    { "basic long string",
+      "\n[[bovine]]\n",
+      PASS, "2 <string> = bovine\n3 <eof>",
+    },
+    -------------------------------------------------------------
+    { "first newline consumed in long string",
+      "[[\nmoo]]",
+      PASS, "2 <string> = moo\n2 <eof>",
+    },
+    -------------------------------------------------------------
+    { "multiline long string",
+      "[[moo\nmoo moo\n]]",
+      PASS, "3 <string> = moo\nmoo moo\n\n3 <eof>",
+    },
+    -------------------------------------------------------------
+    { "unterminated long string 1",
+      "\n[[\nbovine",
+      FAIL, ":3: unfinished long string",
+    },
+    -------------------------------------------------------------
+    { "unterminated long string 2",
+      "[[bovine]",
+      FAIL, ":1: unfinished long string",
+    },
+    -------------------------------------------------------------
+    { "unterminated long string 3",
+      "[[[[ \n",
+      FAIL, ":2: unfinished long string",
+    },
+    -------------------------------------------------------------
+    { "nested long string 1",
+      "[[moo[[moo]]moo]]",
+      PASS, "moo[[moo]]moo",
+    },
+    -------------------------------------------------------------
+    { "nested long string 2",
+      "[[moo[[moo[[[[]]]]moo]]moo]]",
+      PASS, "moo[[moo[[[[]]]]moo]]moo",
+    },
+    -------------------------------------------------------------
+    { "nested long string 3",
+      "[[[[[[]]]][[[[]]]]]]",
+      PASS, "[[[[]]]][[[[]]]]",
+    },
+    -------------------------------------------------------------
+    { "brackets in long strings 1",
+      "[[moo[moo]]",
+      PASS, "moo[moo",
+    },
+    -------------------------------------------------------------
+    { "brackets in long strings 2",
+      "[[moo[[moo]moo]]moo]]",
+      PASS, "moo[[moo]moo]]moo",
+    },
+    -------------------------------------------------------------
+    { "unprocessed escapes in long strings",
+      [[ [[\a\b\f\n\r\t\v\123]] ]],
+      PASS, [[\a\b\f\n\r\t\v\123]],
+    },
+    -------------------------------------------------------------
+    { "unbalanced long string",
+      "[[moo]]moo]]",
+      PASS, "1 <string> = moo\n1 <name> = moo\n1 CHAR = ']'\n1 CHAR = ']'\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 1",
+      "and break do else",
+      PASS, "1 and\n1 break\n1 do\n1 else\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 2",
+      "elseif end false for",
+      PASS, "1 elseif\n1 end\n1 false\n1 for\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 3",
+      "function if in local nil",
+      PASS, "1 function\n1 if\n1 in\n1 local\n1 nil\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 4",
+      "not or repeat return",
+      PASS, "1 not\n1 or\n1 repeat\n1 return\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 5",
+      "then true until while",
+      PASS, "1 then\n1 true\n1 until\n1 while\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "concat and dots",
+      ".. ...",
+      PASS, "1 ..\n1 ...\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "shbang handling 1",
+      "#blahblah",
+      PASS, "1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "shbang handling 2",
+      "#blahblah\nmoo moo\n",
+      PASS, "2 <name> = moo\n2 <name> = moo\n3 <eof>",
+    },
+    -------------------------------------------------------------
+    { "empty string",
+      [['']],
+      PASS, "1 <string> = \n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "single-quoted string",
+      [['bovine']],
+      PASS, "1 <string> = bovine\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "double-quoted string",
+      [["bovine"]],
+      PASS, "1 <string> = bovine\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "unterminated string 1",
+      [['moo ]],
+      FAIL, ":1: unfinished string",
+    },
+    -------------------------------------------------------------
+    { "unterminated string 2",
+      [["moo \n]],
+      FAIL, ":1: unfinished string",
+    },
+    -------------------------------------------------------------
+    { "escaped newline in string, line number counted",
+      "\"moo\\\nmoo\\\nmoo\"",
+      PASS, "3 <string> = moo\nmoo\nmoo\n3 <eof>",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 1",
+      [["moo\amoo"]],
+      PASS, "1 <string> = moo\amoo",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 2",
+      [["moo\bmoo"]],
+      PASS, "1 <string> = moo\bmoo",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 3",
+      [["moo\f\n\r\t\vmoo"]],
+      PASS, "1 <string> = moo\f\n\r\t\vmoo",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 4",
+      [["\\ \" \' \? \[ \]"]],
+      PASS, "1 <string> = \\ \" \' \? \[ \]",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 5",
+      [["\z \k \: \;"]],
+      PASS, "1 <string> = z k : ;",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 6",
+      [["\8 \65 \160 \180K \097097"]],
+      PASS, "1 <string> = \8 \65 \160 \180K \097097\n",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 7",
+      [["\666"]],
+      FAIL, ":1: escape sequence too large",
+    },
+    -------------------------------------------------------------
+    { "simple numbers",
+      "123 123+",
+      PASS, "1 <number> = 123\n1 <number> = 123\n1 CHAR = '+'\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "longer numbers",
+      "1234567890 12345678901234567890",
+      PASS, "1 <number> = 1234567890\n1 <number> = 1.2345678901235e+19\n",
+    },
+    -------------------------------------------------------------
+    { "fractional numbers",
+      ".123 .12345678901234567890",
+      PASS, "1 <number> = 0.123\n1 <number> = 0.12345678901235\n",
+    },
+    -------------------------------------------------------------
+    { "more numbers with decimal points",
+      "12345.67890 1.1.",
+      PASS, "1 <number> = 12345.6789\n1 <number> = 1.1\n1 CHAR = '.'\n",
+    },
+    -------------------------------------------------------------
+    { "double decimal points",
+      ".1.1",
+      FAIL, ":1: malformed number",
+    },
+    -------------------------------------------------------------
+    { "double dots within numbers",
+      "1..1",
+      FAIL, ":1: ambiguous syntax (dots follows digits)",
+    },
+    -------------------------------------------------------------
+    { "incomplete exponential numbers",
+      "123e",
+      FAIL, ":1: malformed number",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 1",
+      "1234e5 1234e5.",
+      PASS, "1 <number> = 123400000\n1 <number> = 123400000\n1 CHAR = '.'",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 2",
+      "1234e56 1.23e123",
+      PASS, "1 <number> = 1.234e+59\n1 <number> = 1.23e+123\n",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 3",
+      "12.34e+",
+      FAIL, ":1: malformed number",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 4",
+      "12.34e+5 123.4e-5 1234.E+5",
+      PASS, "1 <number> = 1234000\n1 <number> = 0.001234\n1 <number> = 123400000\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 1",
+      "= > < ~",
+      PASS, "1 CHAR = '='\n1 CHAR = '>'\n1 CHAR = '<'\n1 CHAR = '~'\n",
+    },
+    -------------------------------------------------------------
+    { "double character symbols",
+      "== >= <= ~=",
+      PASS, "1 ==\n1 >=\n1 <=\n1 ~=\n",
+    },
+    -------------------------------------------------------------
+    { "simple identifiers",
+      "abc ABC",
+      PASS, "1 <name> = abc\n1 <name> = ABC\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "more identifiers",
+      "_abc _ABC",
+      PASS, "1 <name> = _abc\n1 <name> = _ABC\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "still more identifiers",
+      "_aB_ _123",
+      PASS, "1 <name> = _aB_\n1 <name> = _123\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "invalid control character",
+      "\4",
+      FAIL, ":1: invalid control char",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 2",
+      "` ! @ $ %",
+      PASS, "1 CHAR = '`'\n1 CHAR = '!'\n1 CHAR = '@'\n1 CHAR = '$'\n1 CHAR = '%'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 3",
+      "^ & * ( )",
+      PASS, "1 CHAR = '^'\n1 CHAR = '&'\n1 CHAR = '*'\n1 CHAR = '('\n1 CHAR = ')'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 4",
+      "_ - + \\ |",
+      PASS, "1 <name> = _\n1 CHAR = '-'\n1 CHAR = '+'\n1 CHAR = '\\'\n1 CHAR = '|'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 5",
+      "{ } [ ] :",
+      PASS, "1 CHAR = '{'\n1 CHAR = '}'\n1 CHAR = '['\n1 CHAR = ']'\n1 CHAR = ':'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 6",
+      "; , . / ?",
+      PASS, "1 CHAR = ';'\n1 CHAR = ','\n1 CHAR = '.'\n1 CHAR = '/'\n1 CHAR = '?'\n",
+    },
+    -------------------------------------------------------------
+  }
+  ------------------------------------------------------------------
+  -- perform a test case
+  ------------------------------------------------------------------
+  function do_test_case(count, test_case)
+    if comment == "" then return end  -- skip empty entries
+    local comment, chunk, outcome, matcher = unpack(test_case)
+    local result = PASS
+    local output = ""
+    -- initialize lexer
+    local z = zio_init(chunk)
+    local luaX = lex_init(z, "=test")
+    -- lexer test loop
+    local status, token, seminfo
+    repeat
+      -- protected call
+      status, token, seminfo = pcall(luaX.lex, luaX)
+      output = output..luaX.ln.." "
+      if status then
+        -- successful call
+        if string.len(token) > 1 then
+          if token == "<name>"
+             or token == "<number>"
+             or token == "<string>" then
+            token = token.." = "..seminfo
+          end
+        elseif string.byte(token) >= 32 then  -- displayable chars
+          token = "CHAR = '"..token.."'"
+        else  -- control characters
+          token = "CHAR = (".. string.byte(token)..")"
+        end
+        output = output..token.."\n"
+      else
+        -- failed call
+        output = output..token  -- token is the error message
+        result = FAIL
+        break
+      end
+    until token == "<eof>"
+    -- decision making and reporting
+    local head = "Test "..count..": "..comment
+    if matcher == "" then
+      -- nothing to check against, display for manual check
+      print(head.."\nMANUAL please check manually"..
+            "\n--chunk---------------------------------\n"..chunk..
+            "\n--actual--------------------------------\n"..output..
+            "\n\n")
+      return
+    else
+      if outcome == PASS then
+        -- success expected, may be a partial match
+        if string.find(output, matcher, 1, 1) and result == PASS then
+          if not BRIEF then print(head.."\nOK expected success\n") end
+          return
+        end
+      else
+        -- failure expected, may be a partial match
+        if string.find(output, matcher, 1, 1) and result == FAIL then
+          if not BRIEF then print(head.."\nOK expected failure\n") end
+          return
+        end
+      end
+      -- failed because of unmatched string or boolean result
+      local function passfail(status)
+        if status == PASS then return "PASS" else return "FAIL" end
+      end
+      print(head.." *FAILED*"..
+            "\noutcome="..passfail(outcome)..
+            "\nactual= "..passfail(result)..
+            "\n--chunk---------------------------------\n"..chunk..
+            "\n--expected------------------------------\n"..matcher..
+            "\n--actual--------------------------------\n"..output..
+            "\n\n")
+    end
+  end
+  ------------------------------------------------------------------
+  -- perform auto testing
+  ------------------------------------------------------------------
+  for i,test_case in ipairs(test_cases) do
+    do_test_case(i, test_case)
+  end
+end
+
+auto_test()
+--]]
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_lparser_mk3.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_lparser_mk3.lua
new file mode 100644
index 0000000..662c826
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_lparser_mk3.lua
@@ -0,0 +1,218 @@
+--[[--------------------------------------------------------------------
+
+  test_lparser_mk3.lua
+  Test for lparser_mk3.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2008 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- test the whole kaboodle
+------------------------------------------------------------------------
+
+local lex_init = require("../llex_mk3")
+local parser_init = require("../lparser_mk3")
+
+------------------------------------------------------------------------
+-- dump contents of log table
+------------------------------------------------------------------------
+
+local function dump_log(fs)
+  local log = fs.log
+  for i = 1, table.getn(log) do
+    print(log[i])
+  end
+end
+
+------------------------------------------------------------------------
+-- try 1
+------------------------------------------------------------------------
+
+local luaX = lex_init("local a = 1", "=string")
+local luaY = parser_init(luaX)
+
+-- nothing is returned, so hope there is an error if problem occurs
+local fs = luaY:parser()
+--dump_log(fs)
+
+------------------------------------------------------------------------
+-- try 2
+------------------------------------------------------------------------
+
+-- llex_mk3.lua cannot load files by itself
+local INF = io.open("sample.lua", "rb")
+if not INF then error("failed to load test file") end
+local sample = INF:read("*a")
+INF:close()
+
+luaX = lex_init(sample, "@sample.lua")
+luaY = parser_init(luaX)
+
+-- nothing is returned, so hope there is an error if problem occurs
+local fs = luaY:parser()
+--dump_log(fs)
+
+------------------------------------------------------------------------
+-- automatic dumper of output log data
+------------------------------------------------------------------------
+
+local test_case = {
+-- 1
+[[
+]],
+-- 2
+[[
+-- foobar
+]],
+-- 3
+[[
+do
+end
+]],
+-- 4
+[[
+do end
+do end
+]],
+-- 5
+[[
+foo()
+foo{}
+foo""
+foo:bar()
+foo=false
+foo.bar=true
+foo[true]=nil
+foo,bar=1,"a"
+]],
+-- 6
+[[
+foo=true
+foo=false
+foo=nil
+foo=1.23e45
+foo=-1
+foo=(0)
+foo=1+2
+foo=1+2*3-4/5
+]],
+-- 7
+[[
+if foo then foo=1 end
+if foo then foo=1 else foo=0 end
+if foo then foo=1 elseif not foo then foo=0 end
+]],
+-- 8
+[[
+do return end
+do return 123 end
+do return "foo","bar" end
+]],
+-- 9
+[[
+while true do foo=not foo end
+while foo~=42 do foo=foo-1 end
+while true do break end
+]],
+-- 10
+[[
+repeat foo=foo.."bar" until false
+repeat foo=foo/2 until foo<1
+repeat break until false
+]],
+-- 11
+[[
+for i=1,10 do foo=i end
+for i=1,10,2 do break end
+for i in foo do bar=0 end
+for i,j in foo,bar do baz=0 end
+]],
+-- 12
+[[
+local foo
+local foo,bar,baz
+local foo,bar="foo","bar"
+]],
+-- 13
+[[
+local function foo() return end
+local function foo(a) return end
+local function foo(x,y,z) return end
+local function foo(x,...) return end
+]],
+-- 14
+[[
+function foo() return end
+function foo(a) return end
+function foo(x,y,z) return end
+function foo(x,...) return end
+]],
+-- 15
+[[
+function foo.bar(p) return end
+function foo.bar.baz(p) return end
+function foo:bar(p) return end
+function foo.bar.baz(p) return end
+]],
+-- 16
+[[
+foo = function() return end
+foo = function(x,y) return end
+foo = function(...) return end
+]],
+-- 17
+[[
+foo = {}
+foo = { 1,2,3; "foo"; }
+foo = { bar=77, baz=88, }
+foo = { ["bar"]=77, ["baz"]=88, }
+]],
+}
+
+-- helps to skip old stuff during development of snippets
+local do_beg, do_end = 1, table.getn(test_case)
+
+-- loop for all example snippets
+for i = do_beg, do_end do
+  local fname = "parser_log/sample_"..string.format("%02d", i)..".lua"
+  local src = test_case[i]
+  local OUTF = io.open(fname, "wb")
+  if not OUTF then error("failed to write to file '"..fname.."'") end
+  -- write out actual source for comparison
+  OUTF:write(
+    "-- START OF SOURCE --\n"..
+    src..
+    "-- END OF SOURCE --\n"..
+    "\n"
+  )
+  -- attempt to parse
+  local luaX = lex_init(src, "=string")
+  local luaY = parser_init(luaX)
+  local fs = luaY:parser()
+  -- grab logged messages and write
+  local log = fs.log
+  local indent = 0
+  for i = 1, table.getn(log) do
+    local ln = log[i]
+    -- handle indentation
+    local tag = string.sub(ln, 1, 2)
+    if tag == ">>" or tag == "<<" then
+      ln = string.sub(ln, 4)
+    end
+    if tag == ">>" then
+      indent = indent + 1
+    end
+    OUTF:write(string.rep("  ", indent)..ln.."\n")
+    if tag == "<<" then
+      indent = indent - 1
+    end
+  end
+  -- we're done
+  OUTF:close()
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_lparser_mk3_2.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_lparser_mk3_2.lua
new file mode 100644
index 0000000..957ee22
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_lparser_mk3_2.lua
@@ -0,0 +1,158 @@
+--[[--------------------------------------------------------------------
+
+  test_lparser_mk3_2.lua
+  Test for lparser_mk3.lua, using the test case file
+  This file is part of Yueliang.
+
+  Copyright (c) 2006-2008 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * unlike the equivalent in the orig-5.0.3/ directory, this version
+--   tests only parsing, lparser_mk3 cannot generate binary chunks
+-- * the test cases are in the test_lua directory (test_parser-5.0.lua)
+----------------------------------------------------------------------]]
+
+-- * true if you want an output of all failure cases in native Lua,
+--   for checking whether test cases fail where you intend them to
+local DEBUG_FAILS = false
+
+------------------------------------------------------------------------
+-- test the whole kaboodle
+------------------------------------------------------------------------
+
+local lex_init = require("../llex_mk3")
+local parser_init = require("../lparser_mk3")
+
+------------------------------------------------------------------------
+-- load test cases
+------------------------------------------------------------------------
+
+require("../../test_lua/test_parser-5.0")
+
+local test, expect, heading = {}, {}, {}
+local total, total_pass, total_fail = 0, 0, 0
+
+for ln in string.gfind(tests_source, "([^\n]*)\n") do
+  if string.find(ln, "^%s*%-%-") then
+    -- comment, ignore
+  else
+    local m, _, head = string.find(ln, "^%s*(TESTS:%s*.*)$")
+    if m then
+      heading[total + 1] = head         -- informational heading
+    else
+      total = total + 1
+      local n, _, flag = string.find(ln, "%s*%-%-%s*FAIL%s*$")
+      if n then                         -- FAIL test case
+        ln = string.sub(ln, 1, n - 1)   -- remove comment
+        expect[total] = "FAIL"
+        total_fail = total_fail + 1
+      else                              -- PASS test case
+        expect[total] = "PASS"
+        total_pass = total_pass + 1
+      end--n
+      test[total] = ln
+    end--m
+  end--ln
+end--for
+
+print("Tests loaded: "..total.." (total), "
+                      ..total_pass.." (passes), "
+                      ..total_fail.." (fails)")
+
+------------------------------------------------------------------------
+-- verify test cases using native Lua
+------------------------------------------------------------------------
+
+local last_head = "TESTS: no heading yet"
+for i = 1, total do
+  local test_case, expected, head = test[i], expect[i], heading[i]
+  -- show progress
+  if head then
+    last_head = head
+    if DEBUG_FAILS then print("\n"..head.."\n") end
+  end
+  ------------------------------------------------------------------
+  -- perform test
+  local f, err = loadstring(test_case)
+  -- look at outcome
+  ------------------------------------------------------------------
+  if f then-- actual PASS
+    if expected == "FAIL" then
+      print("\nVerified as PASS but expected to FAIL"..
+            "\n-------------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      os.exit()
+    end
+  ------------------------------------------------------------------
+  else-- actual FAIL
+    if expected == "PASS" then
+      print("\nVerified as FAIL but expected to PASS"..
+            "\n-------------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      print("ERROR: "..err)
+      os.exit()
+    end
+    if DEBUG_FAILS then
+      print("TEST: "..test_case)
+      print("ERROR: "..err.."\n")
+    end
+  ------------------------------------------------------------------
+  end--f
+end--for
+
+print("Test cases verified using native Lua, no anomalies.")
+
+------------------------------------------------------------------------
+-- test using Yueliang front end
+------------------------------------------------------------------------
+
+local last_head = "TESTS: no heading yet"
+for i = 1, total do
+  local test_case, expected, head = test[i], expect[i], heading[i]
+  -- show progress
+  if head then last_head = head end
+  ------------------------------------------------------------------
+  -- perform test
+  luaX = lex_init(test_case, "=test_sample")
+  luaY = parser_init(luaX)
+
+  local status, func = pcall(luaY.parser, luaY)
+  -- look at outcome
+  ------------------------------------------------------------------
+  if status then-- actual PASS
+    if expected == "FAIL" then
+      print("\nTested as PASS but expected to FAIL"..
+            "\n-----------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      os.exit()
+    end
+  ------------------------------------------------------------------
+  else-- actual FAIL
+    if expected == "PASS" then
+      print("\nTested as FAIL but expected to PASS"..
+            "\n-----------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      os.exit()
+    else
+      io.stdout:write("-")
+    end
+  ------------------------------------------------------------------
+  end--status
+  io.stdout:write("\rTesting ["..i.."]...")
+end--for
+print(" done.")
+
+print("Test cases run on Yueliang, no anomalies.")
+
+-- end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_lparser_mk3b.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_lparser_mk3b.lua
new file mode 100644
index 0000000..d8dc33d
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_lparser_mk3b.lua
@@ -0,0 +1,188 @@
+--[[--------------------------------------------------------------------
+
+  test_lparser_mk3b.lua
+  Test for lparser_mk3b.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2008 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- test the whole kaboodle
+------------------------------------------------------------------------
+
+local lex_init = require("../llex_mk3")
+local parser_init = require("../lparser_mk3b")
+
+------------------------------------------------------------------------
+-- dump contents of log table
+------------------------------------------------------------------------
+
+local function dump_log(fs)
+  local log = fs.log
+  for i = 1, table.getn(log) do
+    print(log[i])
+  end
+end
+
+------------------------------------------------------------------------
+-- automatic dumper of output log data
+------------------------------------------------------------------------
+
+local test_case = {
+-- 1
+[[
+  print(a)
+]],
+-- 2
+[[
+  local a
+  print(a)
+]],
+-- 3
+[[
+  do
+    local a
+    print(a)
+  end
+  print(a)
+]],
+-- 4
+[[
+  local a,b,c
+  do
+    local b
+    print(b)
+  end
+  print(b)
+]],
+-- 5
+[[
+  local function foo() end
+  bar = foo
+]],
+-- 6
+[[
+  do
+    local function foo() end
+    bar = foo
+  end
+  baz = foo
+]],
+-- 7
+[[
+  local foo
+  local function bar()
+    baz = nil
+    foo = bar()
+  end
+  foo = bar
+]],
+-- 8
+[[
+  local foo
+  local function bar()
+    local function baz()
+      local foo, bar
+      foo = bar
+      foo = baz
+    end
+    foo = bar
+    foo = baz
+  end
+  foo = bar
+  foo = baz
+]],
+-- 9
+[[
+  function foo:bar()
+    print(self)
+  end
+]],
+-- 10
+[[
+  function foo(...)
+    print(arg)
+  end
+]],
+-- 11
+[[
+  local c,d
+  function foo(a,b,c)
+    print(a,c,d,e)
+  end
+]],
+-- 11
+[[
+  function foo(a,b)
+    local bar = function(c,d)
+      print(a,b,c,d)
+    end
+  end
+]],
+-- 12
+[[
+  for i = 1,10 do
+    print(i)
+  end
+  for i = 1,10,-2 do
+    print(i)
+  end
+]],
+-- 13
+[[
+  for foo in bar() do
+    print(foo)
+  end
+  for foo,bar,baz in spring() do
+    print(foo,bar,baz)
+  end
+]],
+}
+
+-- helps to skip old stuff during development of snippets
+local do_beg, do_end = 1, table.getn(test_case)
+
+-- loop for all example snippets
+for i = do_beg, do_end do
+  local fname = "parser_log/sample_b_"..string.format("%02d", i)..".lua"
+  local src = test_case[i]
+  local OUTF = io.open(fname, "wb")
+  if not OUTF then error("failed to write to file '"..fname.."'") end
+  -- write out actual source for comparison
+  OUTF:write(
+    "-- START OF SOURCE --\n"..
+    src..
+    "-- END OF SOURCE --\n"..
+    "\n"
+  )
+  -- attempt to parse
+  local luaX = lex_init(src, "=string")
+  local luaY = parser_init(luaX)
+  local fs = luaY:parser()
+  -- grab logged messages and write
+  local log = fs.log
+  local indent = 0
+  for i = 1, table.getn(log) do
+    local ln = log[i]
+    -- handle indentation
+    local tag = string.sub(ln, 1, 2)
+    if tag == ">>" or tag == "<<" then
+      ln = string.sub(ln, 4)
+    end
+    if tag == ">>" then
+      indent = indent + 1
+    end
+    OUTF:write(string.rep("  ", indent)..ln.."\n")
+    if tag == "<<" then
+      indent = indent - 1
+    end
+  end
+  -- we're done
+  OUTF:close()
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_lparser_mk3b_2.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_lparser_mk3b_2.lua
new file mode 100644
index 0000000..4d4e8c5
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_lparser_mk3b_2.lua
@@ -0,0 +1,158 @@
+--[[--------------------------------------------------------------------
+
+  test_lparser_mk3b_2.lua
+  Test for lparser_mk3b.lua, using the test case file
+  This file is part of Yueliang.
+
+  Copyright (c) 2006-2008 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * unlike the equivalent in the orig-5.0.3/ directory, this version
+--   tests only parsing, lparser_mk3 cannot generate binary chunks
+-- * the test cases are in the test_lua directory (test_parser-5.0.lua)
+----------------------------------------------------------------------]]
+
+-- * true if you want an output of all failure cases in native Lua,
+--   for checking whether test cases fail where you intend them to
+local DEBUG_FAILS = false
+
+------------------------------------------------------------------------
+-- test the whole kaboodle
+------------------------------------------------------------------------
+
+local lex_init = require("../llex_mk3")
+local parser_init = require("../lparser_mk3b")
+
+------------------------------------------------------------------------
+-- load test cases
+------------------------------------------------------------------------
+
+require("../../test_lua/test_parser-5.0")
+
+local test, expect, heading = {}, {}, {}
+local total, total_pass, total_fail = 0, 0, 0
+
+for ln in string.gfind(tests_source, "([^\n]*)\n") do
+  if string.find(ln, "^%s*%-%-") then
+    -- comment, ignore
+  else
+    local m, _, head = string.find(ln, "^%s*(TESTS:%s*.*)$")
+    if m then
+      heading[total + 1] = head         -- informational heading
+    else
+      total = total + 1
+      local n, _, flag = string.find(ln, "%s*%-%-%s*FAIL%s*$")
+      if n then                         -- FAIL test case
+        ln = string.sub(ln, 1, n - 1)   -- remove comment
+        expect[total] = "FAIL"
+        total_fail = total_fail + 1
+      else                              -- PASS test case
+        expect[total] = "PASS"
+        total_pass = total_pass + 1
+      end--n
+      test[total] = ln
+    end--m
+  end--ln
+end--for
+
+print("Tests loaded: "..total.." (total), "
+                      ..total_pass.." (passes), "
+                      ..total_fail.." (fails)")
+
+------------------------------------------------------------------------
+-- verify test cases using native Lua
+------------------------------------------------------------------------
+
+local last_head = "TESTS: no heading yet"
+for i = 1, total do
+  local test_case, expected, head = test[i], expect[i], heading[i]
+  -- show progress
+  if head then
+    last_head = head
+    if DEBUG_FAILS then print("\n"..head.."\n") end
+  end
+  ------------------------------------------------------------------
+  -- perform test
+  local f, err = loadstring(test_case)
+  -- look at outcome
+  ------------------------------------------------------------------
+  if f then-- actual PASS
+    if expected == "FAIL" then
+      print("\nVerified as PASS but expected to FAIL"..
+            "\n-------------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      os.exit()
+    end
+  ------------------------------------------------------------------
+  else-- actual FAIL
+    if expected == "PASS" then
+      print("\nVerified as FAIL but expected to PASS"..
+            "\n-------------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      print("ERROR: "..err)
+      os.exit()
+    end
+    if DEBUG_FAILS then
+      print("TEST: "..test_case)
+      print("ERROR: "..err.."\n")
+    end
+  ------------------------------------------------------------------
+  end--f
+end--for
+
+print("Test cases verified using native Lua, no anomalies.")
+
+------------------------------------------------------------------------
+-- test using Yueliang front end
+------------------------------------------------------------------------
+
+local last_head = "TESTS: no heading yet"
+for i = 1, total do
+  local test_case, expected, head = test[i], expect[i], heading[i]
+  -- show progress
+  if head then last_head = head end
+  ------------------------------------------------------------------
+  -- perform test
+  luaX = lex_init(test_case, "=test_sample")
+  luaY = parser_init(luaX)
+
+  local status, func = pcall(luaY.parser, luaY)
+  -- look at outcome
+  ------------------------------------------------------------------
+  if status then-- actual PASS
+    if expected == "FAIL" then
+      print("\nTested as PASS but expected to FAIL"..
+            "\n-----------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      os.exit()
+    end
+  ------------------------------------------------------------------
+  else-- actual FAIL
+    if expected == "PASS" then
+      print("\nTested as FAIL but expected to PASS"..
+            "\n-----------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      os.exit()
+    else
+      io.stdout:write("-")
+    end
+  ------------------------------------------------------------------
+  end--status
+  io.stdout:write("\rTesting ["..i.."]...")
+end--for
+print(" done.")
+
+print("Test cases run on Yueliang, no anomalies.")
+
+-- end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_lzio_mk2.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_lzio_mk2.lua
new file mode 100644
index 0000000..30259c8
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.0.3/test/test_lzio_mk2.lua
@@ -0,0 +1,53 @@
+--[[--------------------------------------------------------------------
+
+  test_lzio.lua
+  Test for lzio.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+-- manual test for lzio.lua lua-style chunk reader
+
+local zio_init = require("../lzio_mk2")
+
+local z
+function dump(z)
+  while true do
+    local c = z:getc()
+    io.stdout:write("("..c..")")
+    if c == "EOZ" then break end
+  end
+  io.stdout:write("\n")
+end
+
+-- z = zio_init("@<filename>") for a file
+-- z = zio_init("<string>") for a string
+
+-- [[
+z = zio_init("hello, world!")
+dump(z)
+z = zio_init("line1\nline2\n")
+dump(z)
+z = zio_init("@test_lzio_mk2.lua")
+dump(z)
+--]]
+
+-- test read beyond end of file
+-- bug reported by Adam429
+--[[
+z = zio_init("@test_lzio_mk2.lua")
+while true do
+  local c = z:getc()
+  io.stdout:write("("..c..")")
+  if c == "EOZ" then break end
+end
+print(z:getc())
+print(z:getc())
+io.stdout:write("\n")
+--]]
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/README b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/README
new file mode 100644
index 0000000..215b555
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/README
@@ -0,0 +1,55 @@
+nat-5.1.3
+
+This directory contains versions of front end files that are rewritten
+to be more "native" to Lua. These files should be considered as
+exercises in exploring ways to write the front end, for example, to
+write a front end that is optimized for size, etc. See also file size
+data further below.
+
+The following are the different versions available (mk2 == "mark 2",
+this is commonly used in the UK, e.g. for aeroplanes during WWII):
+
+Lexers
+------
+
+NOTE: These lexers should behave mostly identically to the original C
+lexer. Locale support for non-standard decimal points is missing. Also,
+all strings and long strings have line endings normalized to LF.
+
+llex_mk2        Rewritten from original ported code to become more
+                Lua-like. Needs input to be entered as a single string.
+                Unless an application's need is very unusual, this
+                should not be a problem. It will not work for per-line
+                interaction, though. This version is also somewhat
+                optimized for size; its stripped binary chunk size is
+                3716 bytes.
+
+                Status: TESTED
+
+Parsers
+-------
+
+lparser_mk2     Written for the simplified lexer interface of llex_mk2.
+                This is a lexer skeleton, stripped of codegen code. Has
+                a minimum of variable management code added, and tracks
+                the is_vararg flag of a function. See the comments in
+                the source code for more information. Without logging
+                messages and comments, it should be under 600 LOC. A
+                binary chunk of lparser_mk2 (stripped) is 15783 bytes.
+
+                Sample output of the parser message logger can be found
+                in the test/parser_log subdirectory.
+
+                Tested with test_parser-5.1.lua, the Lua 5.1.x parser test
+                cases in the test_lua/ directory, appears to be fine.
+
+                Compared to the 5.0.x parser skeleton, the main changes
+                are: (a) 'arg' not implemented, so it appears as a global,
+                and (b) '...' recognized as the last function parameter.
+
+                Status: SNIPPETS APPEAR TO WORK
+
+Other notes:
+------------
+
+None.
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/llex_mk2.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/llex_mk2.lua
new file mode 100644
index 0000000..dae57f1
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/llex_mk2.lua
@@ -0,0 +1,314 @@
+--[[--------------------------------------------------------------------
+
+  llex.lua
+  Lua 5.1 lexical analyzer in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2008 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * takes in the entire source at once
+-- * greatly simplified chunkid, error handling
+-- * NO shbang handling (it's done elsewhere in Lua 5.1)
+-- * NO localized decimal point replacement magic
+-- * NO limit to number of lines (MAX_INT = 2147483645)
+-- * NO support for compatible long strings (LUA_COMPAT_LSTR)
+-- * NO next(), lookahead() because I want next() to set tok and
+--   seminfo that are locals, and that can only be done easily in
+--   lparser, not llex. lastline would be handled in lparser too.
+--
+-- Usage example:
+--   local llex = require("llex_mk2")
+--   llex.init(source_code, source_code_name)
+--   repeat
+--      local token, seminfo = llex.llex()
+--   until token == "<eof>"
+--
+----------------------------------------------------------------------]]
+
+local base = _G
+local string = require "string"
+module "llex"
+
+----------------------------------------------------------------------
+-- initialize keyword list
+----------------------------------------------------------------------
+local kw = {}
+for v in string.gmatch([[
+and break do else elseif end false for function if in
+local nil not or repeat return then true until while]], "%S+") do
+  kw[v] = true
+end
+
+----------------------------------------------------------------------
+-- initialize lexer for given source _z and source name _sourceid
+----------------------------------------------------------------------
+local z, sourceid, I
+local find = string.find
+local match = string.match
+local sub = string.sub
+
+function init(_z, _sourceid)
+  z = _z                        -- source
+  sourceid = _sourceid          -- name of source
+  I = 1                         -- lexer's position in source
+  ln = 1                        -- line number
+end
+
+----------------------------------------------------------------------
+-- returns a chunk name or id, no truncation for long names
+----------------------------------------------------------------------
+function chunkid()
+  if sourceid and match(sourceid, "^[=@]") then
+    return sub(sourceid, 2)  -- remove first char
+  end
+  return "[string]"
+end
+
+----------------------------------------------------------------------
+-- formats error message and throws error
+-- * a simplified version, does not report what token was responsible
+----------------------------------------------------------------------
+function errorline(s, line)
+  base.error(string.format("%s:%d: %s", chunkid(), line or ln, s))
+end
+
+----------------------------------------------------------------------
+-- handles line number incrementation and end-of-line characters
+----------------------------------------------------------------------
+
+local function inclinenumber(i)
+  local sub = sub
+  local old = sub(z, i, i)
+  i = i + 1  -- skip '\n' or '\r'
+  local c = sub(z, i, i)
+  if (c == "\n" or c == "\r") and (c ~= old) then
+    i = i + 1  -- skip '\n\r' or '\r\n'
+  end
+  ln = ln + 1
+  I = i
+  return i
+end
+
+------------------------------------------------------------------------
+-- count separators ("=") in a long string delimiter
+------------------------------------------------------------------------
+local function skip_sep(i)
+  local sub = sub
+  local s = sub(z, i, i)
+  i = i + 1
+  local count = #match(z, "=*", i)  -- note, take the length
+  i = i + count
+  I = i
+  return (sub(z, i, i) == s) and count or (-count) - 1
+end
+
+----------------------------------------------------------------------
+-- reads a long string or long comment
+----------------------------------------------------------------------
+
+local function read_long_string(is_str, sep)
+  local i = I + 1  -- skip 2nd '['
+  local sub = sub
+  local buff = ""
+  local c = sub(z, i, i)
+  if c == "\r" or c == "\n" then  -- string starts with a newline?
+    i = inclinenumber(i)  -- skip it
+  end
+  local j = i
+  while true do
+    local p, q, r = find(z, "([\r\n%]])", i) -- (long range)
+    if not p then
+      errorline(is_str and "unfinished long string" or
+                "unfinished long comment")
+    end
+    if is_str then
+      buff = buff..sub(z, i, p - 1)     -- save string portions
+    end
+    i = p
+    if r == "]" then                    -- delimiter test
+      if skip_sep(i) == sep then
+        i = I + 1  -- skip 2nd ']'
+        break
+      end
+      buff = buff..sub(z, i, I - 1)
+      i = I
+    else                                -- newline
+      buff = buff.."\n"
+      i = inclinenumber(i)
+    end
+  end--while
+  I = i
+  return buff
+end
+
+----------------------------------------------------------------------
+-- reads a string
+----------------------------------------------------------------------
+local function read_string(del)
+  local i = I
+  local find = find
+  local sub = sub
+  local buff = ""
+  while true do
+    local p, q, r = find(z, "([\n\r\\\"\'])", i) -- (long range)
+    if p then
+      if r == "\n" or r == "\r" then
+        errorline("unfinished string")
+      end
+      buff = buff..sub(z, i, p - 1)             -- normal portions
+      i = p
+      if r == "\\" then                         -- handle escapes
+        i = i + 1
+        r = sub(z, i, i)
+        if r == "" then break end -- (EOZ error)
+        p = find("abfnrtv\n\r", r, 1, true)
+        ------------------------------------------------------
+        if p then                               -- special escapes
+          if p > 7 then
+            r = "\n"
+            i = inclinenumber(i)
+          else
+            r = sub("\a\b\f\n\r\t\v", p, p)
+            i = i + 1
+          end
+        ------------------------------------------------------
+        elseif find(r, "%D") then               -- other non-digits
+          i = i + 1
+        ------------------------------------------------------
+        else                                    -- \xxx sequence
+          local p, q, s = find(z, "^(%d%d?%d?)", i)
+          i = q + 1
+          if s + 1 > 256 then -- UCHAR_MAX
+            errorline("escape sequence too large")
+          end
+          r = string.char(s)
+        ------------------------------------------------------
+        end--if p
+      else
+        i = i + 1
+        if r == del then                        -- ending delimiter
+          I = i; return buff                    -- return string
+        end
+      end--if r
+      buff = buff..r -- handled escapes falls through to here
+    else
+      break -- (error)
+    end--if p
+  end--while
+  errorline("unfinished string")
+end
+
+------------------------------------------------------------------------
+-- main lexer function
+------------------------------------------------------------------------
+function llex()
+  local find = find
+  local match = match
+  while true do--outer
+    local i = I
+    -- inner loop allows break to be used to nicely section tests
+    while true do--inner
+      ----------------------------------------------------------------
+      local p, _, r = find(z, "^([_%a][_%w]*)", i)
+      if p then
+        I = i + #r
+        if kw[r] then return r end              -- reserved word (keyword)
+        return "<name>", r                      -- identifier
+      end
+      ----------------------------------------------------------------
+      local p, _, r = find(z, "^(%.?)%d", i)
+      if p then                                 -- numeral
+        if r == "." then i = i + 1 end
+        local _, q, r = find(z, "^%d*[%.%d]*([eE]?)", i)
+        i = q + 1
+        if #r == 1 then                         -- optional exponent
+          if match(z, "^[%+%-]", i) then        -- optional sign
+            i = i + 1
+          end
+        end
+        local _, q = find(z, "^[_%w]*", i)
+        I = q + 1
+        local v = base.tonumber(sub(z, p, q))   -- handles hex also
+        if not v then errorline("malformed number") end
+        return "<number>", v
+      end
+      ----------------------------------------------------------------
+      local p, q, r = find(z, "^(%s)[ \t]*", i)
+      if p then
+        if r == "\n" or r == "\r" then          -- newline
+          inclinenumber(i)
+        else
+          I = q + 1                             -- whitespace
+        end
+        break -- (continue)
+      end
+      ----------------------------------------------------------------
+      local r = match(z, "^%p", i)
+      if r then
+        local p = find("-[\"\'.=<>~", r, 1, true)
+        if p then
+          -- two-level if block for punctuation/symbols
+          --------------------------------------------------------
+          if p <= 2 then
+            if p == 1 then                      -- minus
+              local c = match(z, "^%-%-(%[?)", i)
+              if c then
+                i = i + 2
+                local sep = -1
+                if c == "[" then
+                  sep = skip_sep(i)
+                end
+                if sep >= 0 then                -- long comment
+                  read_long_string(false, sep)
+                else                            -- short comment
+                  I = find(z, "[\n\r]", i) or (#z + 1)
+                end
+                break -- (continue)
+              end
+              -- (fall through for "-")
+            else                                -- [ or long string
+              local sep = skip_sep(i)
+              if sep >= 0 then
+                return "<string>", read_long_string(true, sep)
+              elseif sep == -1 then
+                return "["
+              else
+                errorline("invalid long string delimiter")
+              end
+            end
+          --------------------------------------------------------
+          elseif p <= 5 then
+            if p < 5 then                       -- strings
+              I = i + 1
+              return "<string>", read_string(r)
+            end
+            r = match(z, "^%.%.?%.?", i)        -- .|..|... dots
+            -- (fall through)
+          --------------------------------------------------------
+          else                                  -- relational
+            r = match(z, "^%p=?", i)
+            -- (fall through)
+          end
+        end
+        I = i + #r; return r  -- for other symbols, fall through
+      end
+      ----------------------------------------------------------------
+      local r = sub(z, i, i)
+      if r ~= "" then
+        I = i + 1; return r                     -- other single-char tokens
+      end
+      return "<eof>"                            -- end of stream
+      ----------------------------------------------------------------
+    end--while inner
+  end--while outer
+end
+
+return base.getfenv()
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/lparser_mk2.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/lparser_mk2.lua
new file mode 100644
index 0000000..f94fb84
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/lparser_mk2.lua
@@ -0,0 +1,1294 @@
+--[[--------------------------------------------------------------------
+
+  lparser.lua
+  Lua 5.1 parser in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2008 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * this is a Lua 5.1.x parser skeleton, for the llex_mk2.lua lexer
+-- * builds some data, performs logging for educational purposes
+-- * target is to have relatively efficient and clear code
+-- * NO parsing limitations, since it is only a parser skeleton. Some
+--   limits set in the default sources (in luaconf.h) are:
+--     LUAI_MAXVARS = 200
+--     LUAI_MAXUPVALUES = 60
+--     LUAI_MAXCCALLS = 200
+-- * NO support for 'arg' vararg functions (LUA_COMPAT_VARARG)
+-- * init(llex) needs one parameter, a lexer module that implements:
+--     llex.lex() - returns appropriate [token, semantic info] pairs
+--     llex.ln - current line number
+--     llex.errorline(s, [line]) - dies with error message
+--
+-- Usage example:
+--   local llex = require("llex_mk2")
+--   local lparser = require("lparser_mk2")
+--   llex.init(source_code, source_code_name)
+--   lparser.init(llex)
+--   local fs = lparser.parser()
+--
+-- Development notes:
+-- * see test_parser-5.1.lua for grammar elements based on lparser.c
+-- * next() (renamed to nextt) and lookahead() has been moved from llex;
+--   it's more convenient to keep tok, seminfo as local variables here
+-- * syntaxerror() is from llex, easier to keep here since little token
+--   translation needed in preparation of error message
+-- * lparser has a few extra items to help parsing/syntax checking
+--   (a) line number (error reporting), lookahead token storage
+-- * (b) per-prototype states needs a storage list
+-- * (c) 'break' needs a per-block flag in a stack
+-- * (d) 'kind' (v.k) testing needed in expr_stat() and assignment()
+--       for disambiguation, thus v.k manipulation is retained
+-- * (e) one line # var (lastln) for ambiguous (split line) function
+--       call checking
+-- * (f) LUA_COMPAT_VARARG compatibility code completely removed
+-- * (g) minimal variable management code to differentiate each type
+-- * parsing starts from the end of this file in parser()
+----------------------------------------------------------------------]]
+
+local base = _G
+local string = require "string"
+module "lparser"
+local _G = base.getfenv()
+
+--[[--------------------------------------------------------------------
+-- variable and data structure initialization
+----------------------------------------------------------------------]]
+
+----------------------------------------------------------------------
+-- initialization: main variables
+----------------------------------------------------------------------
+
+local llex, llex_lex            -- references lexer module, function
+local line                      -- start line # for error messages
+local lastln                    -- last line # for ambiguous syntax chk
+local tok, seminfo              -- token, semantic info pair
+local peek_tok, peek_sem        -- ditto, for lookahead
+local fs                        -- current function state
+local top_fs                    -- top-level function state
+
+-- forward references for local functions
+local explist1, expr, block, exp1, body
+
+----------------------------------------------------------------------
+-- initialization: data structures
+----------------------------------------------------------------------
+
+local gmatch = string.gmatch
+
+local block_follow = {}         -- lookahead check in chunk(), returnstat()
+for v in gmatch("else elseif end until <eof>", "%S+") do
+  block_follow[v] = true
+end
+
+local stat_call = {}            -- lookup for calls in stat()
+for v in gmatch("if while do for repeat function local return break", "%S+") do
+  stat_call[v] = v.."_stat"
+end
+
+local binopr_left = {}          -- binary operators, left priority
+local binopr_right = {}         -- binary operators, right priority
+for op, lt, rt in gmatch([[
+{+ 6 6}{- 6 6}{* 7 7}{/ 7 7}{% 7 7}
+{^ 10 9}{.. 5 4}
+{~= 3 3}{== 3 3}
+{< 3 3}{<= 3 3}{> 3 3}{>= 3 3}
+{and 2 2}{or 1 1}
+]], "{(%S+)%s(%d+)%s(%d+)}") do
+  binopr_left[op] = lt + 0
+  binopr_right[op] = rt + 0
+end
+
+local unopr = { ["not"] = true, ["-"] = true,
+                ["#"] = true, } -- unary operators
+local UNARY_PRIORITY = 8        -- priority for unary operators
+
+--[[--------------------------------------------------------------------
+-- logging: this logging function is for educational purposes
+-- * logged data can be retrieved from the returned data structure
+----------------------------------------------------------------------]]
+
+local function log(msg)
+  local log = top_fs.log
+  if not log then                       -- initialize message table
+    log = {}; top_fs.log = log
+  end
+  log[#log + 1] = msg
+end
+
+--[[--------------------------------------------------------------------
+-- support functions
+----------------------------------------------------------------------]]
+
+----------------------------------------------------------------------
+-- handles incoming token, semantic information pairs; these two
+-- functions are from llex, they are put here because keeping the
+-- tok, seminfo variables here as locals is more convenient
+-- * NOTE: 'nextt' is named 'next' originally
+----------------------------------------------------------------------
+
+-- reads in next token
+local function nextt()
+  lastln = llex.ln
+  if peek_tok then  -- is there a look-ahead token? if yes, use it
+    tok, seminfo = peek_tok, peek_sem
+    peek_tok = nil
+  else
+    tok, seminfo = llex_lex()  -- read next token
+  end
+end
+
+-- peek at next token (single lookahead for table constructor)
+local function lookahead()
+  peek_tok, peek_sem = llex_lex()
+  return peek_tok
+end
+
+----------------------------------------------------------------------
+-- throws a syntax error, or if token expected is not there
+----------------------------------------------------------------------
+
+local function syntaxerror(msg)
+  local tok = tok
+  if tok ~= "<number>" and tok ~= "<string>" then
+    if tok == "<name>" then tok = seminfo end
+    tok = "'"..tok.."'"
+  end
+  llex.errorline(msg.." near "..tok)
+end
+
+local function error_expected(token)
+  syntaxerror("'"..token.."' expected")
+end
+
+----------------------------------------------------------------------
+-- tests for a token, returns outcome
+-- * return value changed to boolean
+----------------------------------------------------------------------
+
+local function testnext(c)
+  if tok == c then nextt(); return true end
+end
+
+----------------------------------------------------------------------
+-- check for existence of a token, throws error if not found
+----------------------------------------------------------------------
+
+local function check(c)
+  if tok ~= c then error_expected(c) end
+end
+
+----------------------------------------------------------------------
+-- verify existence of a token, then skip it
+----------------------------------------------------------------------
+
+local function checknext(c)
+  check(c); nextt()
+end
+
+----------------------------------------------------------------------
+-- throws error if condition not matched
+----------------------------------------------------------------------
+
+local function check_condition(c, msg)
+  if not c then syntaxerror(msg) end
+end
+
+----------------------------------------------------------------------
+-- verifies token conditions are met or else throw error
+----------------------------------------------------------------------
+
+local function check_match(what, who, where)
+  if not testnext(what) then
+    if where == llex.ln then
+      error_expected(what)
+    else
+      syntaxerror("'"..what.."' expected (to close '"..who.."' at line "..where..")")
+    end
+  end
+end
+
+----------------------------------------------------------------------
+-- expect that token is a name, return the name
+----------------------------------------------------------------------
+
+local function str_checkname()
+  check("<name>")
+  local ts = seminfo
+  nextt()
+  log("    str_checkname: '"..ts.."'")
+  return ts
+end
+
+----------------------------------------------------------------------
+-- adds given string s in string pool, sets e as VK
+----------------------------------------------------------------------
+
+local function codestring(e, s)
+  e.k = "VK"
+  log("    codestring: "..string.format("%q", s))
+end
+
+----------------------------------------------------------------------
+-- consume a name token, adds it to string pool
+----------------------------------------------------------------------
+
+local function checkname(e)
+  log("    checkname:")
+  codestring(e, str_checkname())
+end
+
+--[[--------------------------------------------------------------------
+-- state management functions with open/close pairs
+----------------------------------------------------------------------]]
+
+----------------------------------------------------------------------
+-- enters a code unit, initializes elements
+----------------------------------------------------------------------
+
+local function enterblock(isbreakable)
+  local bl = {}  -- per-block state
+  bl.isbreakable = isbreakable
+  bl.prev = fs.bl
+  bl.locallist = {}
+  fs.bl = bl
+  log(">> enterblock(isbreakable="..base.tostring(isbreakable)..")")
+end
+
+----------------------------------------------------------------------
+-- leaves a code unit, close any upvalues
+----------------------------------------------------------------------
+
+local function leaveblock()
+  local bl = fs.bl
+  fs.bl = bl.prev
+  log("<< leaveblock")
+end
+
+----------------------------------------------------------------------
+-- opening of a function
+-- * top_fs is only for anchoring the top fs, so that parser() can
+--   return it to the caller function along with useful output
+-- * used in parser() and body()
+----------------------------------------------------------------------
+
+local function open_func()
+  local new_fs  -- per-function state
+  if not fs then  -- top_fs is created early
+    new_fs = top_fs
+  else
+    new_fs = {}
+  end
+  new_fs.prev = fs  -- linked list of function states
+  new_fs.bl = nil
+  new_fs.locallist = {}
+  fs = new_fs
+  log(">> open_func")
+end
+
+----------------------------------------------------------------------
+-- closing of a function
+-- * used in parser() and body()
+----------------------------------------------------------------------
+
+local function close_func()
+  fs = fs.prev
+  log("<< close_func")
+end
+
+--[[--------------------------------------------------------------------
+-- variable (global|local|upvalue) handling
+-- * a pure parser does not really need this, but if we want to produce
+--   useful output, might as well write minimal code to manage this...
+-- * entry point is singlevar() for variable lookups
+-- * three entry points for local variable creation, in order to keep
+--   to original C calls, but the extra arguments such as positioning
+--   are removed as we are not allocating registers -- we are only
+--   doing simple classification
+-- * lookup tables (bl.locallist) are maintained awkwardly in the basic
+--   block data structures, PLUS the function data structure (this is
+--   an inelegant hack, since bl is nil for the top level of a function)
+----------------------------------------------------------------------]]
+
+----------------------------------------------------------------------
+-- register a local variable, set in active variable list
+-- * code for a simple lookup only
+-- * used in new_localvarliteral(), parlist(), fornum(), forlist(),
+--   localfunc(), localstat()
+----------------------------------------------------------------------
+
+local function new_localvar(name)
+  local bl = fs.bl
+  local locallist
+  if bl then
+    locallist = bl.locallist
+  else
+    locallist = fs.locallist
+  end
+  locallist[name] = true
+  log("    new_localvar: '"..name.."'")
+end
+
+----------------------------------------------------------------------
+-- creates a new local variable given a name
+-- * used in fornum(), forlist(), parlist(), body()
+----------------------------------------------------------------------
+
+local function new_localvarliteral(name)
+  new_localvar(name)
+end
+
+----------------------------------------------------------------------
+-- search the local variable namespace of the given fs for a match
+-- * a simple lookup only, no active variable list kept, so no useful
+--   index value can be returned by this function
+-- * used only in singlevaraux()
+----------------------------------------------------------------------
+
+local function searchvar(fs, n)
+  local bl = fs.bl
+  if bl then
+    locallist = bl.locallist
+    while locallist do
+      if locallist[n] then return 1 end  -- found
+      bl = bl.prev
+      locallist = bl and bl.locallist
+    end
+  end
+  locallist = fs.locallist
+  if locallist[n] then return 1 end  -- found
+  return -1  -- not found
+end
+
+----------------------------------------------------------------------
+-- handle locals, globals and upvalues and related processing
+-- * search mechanism is recursive, calls itself to search parents
+-- * used only in singlevar()
+----------------------------------------------------------------------
+
+local function singlevaraux(fs, n, var, base)
+  if fs == nil then  -- no more levels?
+    var.k = "VGLOBAL"  -- default is global variable
+    return "VGLOBAL"
+  else
+    local v = searchvar(fs, n)  -- look up at current level
+    if v >= 0 then
+      var.k = "VLOCAL"
+      --  codegen may need to deal with upvalue here
+      return "VLOCAL"
+    else  -- not found at current level; try upper one
+      if singlevaraux(fs.prev, n, var, 0) == "VGLOBAL" then
+        return "VGLOBAL"
+      end
+      -- else was LOCAL or UPVAL, handle here
+      var.k = "VUPVAL"  -- upvalue in this level
+      return "VUPVAL"
+    end--if v
+  end--if fs
+end
+
+----------------------------------------------------------------------
+-- consume a name token, creates a variable (global|local|upvalue)
+-- * used in prefixexp(), funcname()
+----------------------------------------------------------------------
+
+local function singlevar(v)
+  local varname = str_checkname()
+  singlevaraux(fs, varname, v, 1)
+  log("    singlevar(kind): '"..v.k.."'")
+end
+
+--[[--------------------------------------------------------------------
+-- other parsing functions
+-- * for table constructor, parameter list, argument list
+----------------------------------------------------------------------]]
+
+----------------------------------------------------------------------
+-- parse a function name suffix, for function call specifications
+-- * used in primaryexp(), funcname()
+----------------------------------------------------------------------
+
+local function field(v)
+  -- field -> ['.' | ':'] NAME
+  local key = {}
+  log("  field: operator="..tok)
+  nextt()  -- skip the dot or colon
+  checkname(key)
+  v.k = "VINDEXED"
+end
+
+----------------------------------------------------------------------
+-- parse a table indexing suffix, for constructors, expressions
+-- * used in recfield(), primaryexp()
+----------------------------------------------------------------------
+
+local function yindex(v)
+  -- index -> '[' expr ']'
+  log(">> index: begin '['")
+  nextt()  -- skip the '['
+  expr(v)
+  checknext("]")
+  log("<< index: end ']'")
+end
+
+----------------------------------------------------------------------
+-- parse a table record (hash) field
+-- * used in constructor()
+----------------------------------------------------------------------
+
+local function recfield(cc)
+  -- recfield -> (NAME | '['exp1']') = exp1
+  local key, val = {}, {}
+  if tok == "<name>" then
+    log("recfield: name")
+    checkname(key)
+  else-- tok == '['
+    log("recfield: [ exp1 ]")
+    yindex(key)
+  end
+  checknext("=")
+  expr(val)
+end
+
+----------------------------------------------------------------------
+-- emit a set list instruction if enough elements (LFIELDS_PER_FLUSH)
+-- * note: retained in this skeleton because it modifies cc.v.k
+-- * used in constructor()
+----------------------------------------------------------------------
+
+local function closelistfield(cc)
+  if cc.v.k == "VVOID" then return end  -- there is no list item
+  cc.v.k = "VVOID"
+end
+
+----------------------------------------------------------------------
+-- parse a table list (array) field
+-- * used in constructor()
+----------------------------------------------------------------------
+
+local function listfield(cc)
+  log("listfield: expr")
+  expr(cc.v)
+end
+
+----------------------------------------------------------------------
+-- parse a table constructor
+-- * used in funcargs(), simpleexp()
+----------------------------------------------------------------------
+
+local function constructor(t)
+  -- constructor -> '{' [ field { fieldsep field } [ fieldsep ] ] '}'
+  -- field -> recfield | listfield
+  -- fieldsep -> ',' | ';'
+  log(">> constructor: begin")
+  local line = llex.ln
+  local cc = {}
+  cc.v = {}
+  cc.t = t
+  t.k = "VRELOCABLE"
+  cc.v.k = "VVOID"
+  checknext("{")
+  repeat
+    if tok == "}" then break end
+    -- closelistfield(cc) here
+    local c = tok
+    if c == "<name>" then  -- may be listfields or recfields
+      if lookahead() ~= "=" then  -- look ahead: expression?
+        listfield(cc)
+      else
+        recfield(cc)
+      end
+    elseif c == "[" then  -- constructor_item -> recfield
+      recfield(cc)
+    else  -- constructor_part -> listfield
+      listfield(cc)
+    end
+  until not testnext(",") and not testnext(";")
+  check_match("}", "{", line)
+  -- lastlistfield(cc) here
+  log("<< constructor: end")
+end
+
+----------------------------------------------------------------------
+-- parse the arguments (parameters) of a function declaration
+-- * used in body()
+----------------------------------------------------------------------
+
+local function parlist()
+  -- parlist -> [ param { ',' param } ]
+  log(">> parlist: begin")
+  if tok ~= ")" then  -- is 'parlist' not empty?
+    repeat
+      local c = tok
+      if c == "<name>" then  -- param -> NAME
+        new_localvar(str_checkname())
+      elseif c == "..." then
+        log("parlist: ... (dots)")
+        nextt()
+        fs.is_vararg = true
+      else
+        syntaxerror("<name> or '...' expected")
+      end
+    until fs.is_vararg or not testnext(",")
+  end--if
+  log("<< parlist: end")
+end
+
+----------------------------------------------------------------------
+-- parse the parameters of a function call
+-- * contrast with parlist(), used in function declarations
+-- * used in primaryexp()
+----------------------------------------------------------------------
+
+local function funcargs(f)
+  local args = {}
+  local line = llex.ln
+  local c = tok
+  if c == "(" then  -- funcargs -> '(' [ explist1 ] ')'
+    log(">> funcargs: begin '('")
+    if line ~= lastln then
+      syntaxerror("ambiguous syntax (function call x new statement)")
+    end
+    nextt()
+    if tok == ")" then  -- arg list is empty?
+      args.k = "VVOID"
+    else
+      explist1(args)
+    end
+    check_match(")", "(", line)
+  elseif c == "{" then  -- funcargs -> constructor
+    log(">> funcargs: begin '{'")
+    constructor(args)
+  elseif c == "<string>" then  -- funcargs -> STRING
+    log(">> funcargs: begin <string>")
+    codestring(args, seminfo)
+    nextt()  -- must use 'seminfo' before 'next'
+  else
+    syntaxerror("function arguments expected")
+    return
+  end--if c
+  f.k = "VCALL"
+  log("<< funcargs: end -- expr is a VCALL")
+end
+
+--[[--------------------------------------------------------------------
+-- mostly expression functions
+----------------------------------------------------------------------]]
+
+----------------------------------------------------------------------
+-- parses an expression in parentheses or a single variable
+-- * used in primaryexp()
+----------------------------------------------------------------------
+
+local function prefixexp(v)
+  -- prefixexp -> NAME | '(' expr ')'
+  local c = tok
+  if c == "(" then
+    log(">> prefixexp: begin ( expr ) ")
+    local line = llex.ln
+    nextt()
+    expr(v)
+    check_match(")", "(", line)
+    log("<< prefixexp: end ( expr ) ")
+  elseif c == "<name>" then
+    log("prefixexp: <name>")
+    singlevar(v)
+  else
+    syntaxerror("unexpected symbol")
+  end--if c
+end
+
+----------------------------------------------------------------------
+-- parses a prefixexp (an expression in parentheses or a single
+-- variable) or a function call specification
+-- * used in simpleexp(), assignment(), expr_stat()
+----------------------------------------------------------------------
+
+local function primaryexp(v)
+  -- primaryexp ->
+  --    prefixexp { '.' NAME | '[' exp ']' | ':' NAME funcargs | funcargs }
+  prefixexp(v)
+  while true do
+    local c = tok
+    if c == "." then  -- field
+      log("primaryexp: '.' field")
+      field(v)
+    elseif c == "[" then  -- '[' exp1 ']'
+      log("primaryexp: [ exp1 ]")
+      local key = {}
+      yindex(key)
+    elseif c == ":" then  -- ':' NAME funcargs
+      log("primaryexp: :<name> funcargs")
+      local key = {}
+      nextt()
+      checkname(key)
+      funcargs(v)
+    elseif c == "(" or c == "<string>" or c == "{" then  -- funcargs
+      log("primaryexp: "..c.." funcargs")
+      funcargs(v)
+    else
+      return
+    end--if c
+  end--while
+end
+
+----------------------------------------------------------------------
+-- parses general expression types, constants handled here
+-- * used in subexpr()
+----------------------------------------------------------------------
+
+local function simpleexp(v)
+  -- simpleexp -> NUMBER | STRING | NIL | TRUE | FALSE | ... |
+  --              constructor | FUNCTION body | primaryexp
+  local c = tok
+  if c == "<number>" then
+    log("simpleexp: <number>="..seminfo)
+    v.k = "VKNUM"
+  elseif c == "<string>" then
+    log("simpleexp: <string>="..seminfo)
+    codestring(v, seminfo)
+  elseif c == "nil" then
+    log("simpleexp: nil")
+    v.k = "VNIL"
+  elseif c == "true" then
+    log("simpleexp: true")
+    v.k = "VTRUE"
+  elseif c == "false" then
+    log("simpleexp: false")
+    v.k = "VFALSE"
+  elseif c == "..." then  -- vararg
+    check_condition(fs.is_vararg == true,
+                    "cannot use '...' outside a vararg function");
+    log("simpleexp: ...")
+    v.k = "VVARARG"
+  elseif c == "{" then  -- constructor
+    log("simpleexp: constructor")
+    constructor(v)
+    return
+  elseif c == "function" then
+    log("simpleexp: function")
+    nextt()
+    body(v, false, llex.ln)
+    return
+  else
+    primaryexp(v)
+    return
+  end--if c
+  nextt()
+end
+
+------------------------------------------------------------------------
+-- Parse subexpressions. Includes handling of unary operators and binary
+-- operators. A subexpr is given the rhs priority level of the operator
+-- immediately left of it, if any (limit is -1 if none,) and if a binop
+-- is found, limit is compared with the lhs priority level of the binop
+-- in order to determine which executes first.
+-- * recursively called
+-- * used in expr()
+------------------------------------------------------------------------
+
+local function subexpr(v, limit)
+  -- subexpr -> (simpleexp | unop subexpr) { binop subexpr }
+  --   * where 'binop' is any binary operator with a priority
+  --     higher than 'limit'
+  local op = tok
+  local uop = unopr[op]
+  if uop then
+    log("  subexpr: uop='"..op.."'")
+    nextt()
+    subexpr(v, UNARY_PRIORITY)
+  else
+    simpleexp(v)
+  end
+  -- expand while operators have priorities higher than 'limit'
+  op = tok
+  local binop = binopr_left[op]
+  while binop and binop > limit do
+    local v2 = {}
+    log(">> subexpr: binop='"..op.."'")
+    nextt()
+    -- read sub-expression with higher priority
+    local nextop = subexpr(v2, binopr_right[op])
+    log("<< subexpr: -- evaluate")
+    op = nextop
+    binop = binopr_left[op]
+  end
+  return op  -- return first untreated operator
+end
+
+----------------------------------------------------------------------
+-- Expression parsing starts here. Function subexpr is entered with the
+-- left operator (which is non-existent) priority of -1, which is lower
+-- than all actual operators. Expr information is returned in parm v.
+-- * used in cond(), explist1(), index(), recfield(), listfield(),
+--   prefixexp(), while_stat(), exp1()
+----------------------------------------------------------------------
+
+-- this is a forward-referenced local
+function expr(v)
+  -- expr -> subexpr
+  log("expr:")
+  subexpr(v, 0)
+end
+
+--[[--------------------------------------------------------------------
+-- third level parsing functions
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- parse a variable assignment sequence
+-- * recursively called
+-- * used in expr_stat()
+------------------------------------------------------------------------
+
+local function assignment(v)
+  local e = {}
+  local c = v.v.k
+  check_condition(c == "VLOCAL" or c == "VUPVAL" or c == "VGLOBAL"
+                  or c == "VINDEXED", "syntax error")
+  if testnext(",") then  -- assignment -> ',' primaryexp assignment
+    local nv = {}  -- expdesc
+    nv.v = {}
+    log("assignment: ',' -- next LHS element")
+    primaryexp(nv.v)
+    -- lparser.c deals with some register usage conflict here
+    assignment(nv)
+  else  -- assignment -> '=' explist1
+    checknext("=")
+    log("assignment: '=' -- RHS elements follows")
+    explist1(e)
+    return  -- avoid default
+  end
+  e.k = "VNONRELOC"
+end
+
+----------------------------------------------------------------------
+-- parse a for loop body for both versions of the for loop
+-- * used in fornum(), forlist()
+----------------------------------------------------------------------
+
+local function forbody(isnum)
+  -- forbody -> DO block
+  checknext("do")
+  enterblock(false)  -- scope for declared variables
+  block()
+  leaveblock()  -- end of scope for declared variables
+end
+
+----------------------------------------------------------------------
+-- parse a numerical for loop, calls forbody()
+-- * used in for_stat()
+----------------------------------------------------------------------
+
+local function fornum(varname)
+  -- fornum -> NAME = exp1, exp1 [, exp1] DO body
+  local line = line
+  new_localvarliteral("(for index)")
+  new_localvarliteral("(for limit)")
+  new_localvarliteral("(for step)")
+  new_localvar(varname)
+  log(">> fornum: begin")
+  checknext("=")
+  log("fornum: index start")
+  exp1()  -- initial value
+  checknext(",")
+  log("fornum: index stop")
+  exp1()  -- limit
+  if testnext(",") then
+    log("fornum: index step")
+    exp1()  -- optional step
+  else
+    -- default step = 1
+  end
+  log("fornum: body")
+  forbody(true)
+  log("<< fornum: end")
+end
+
+----------------------------------------------------------------------
+-- parse a generic for loop, calls forbody()
+-- * used in for_stat()
+----------------------------------------------------------------------
+
+local function forlist(indexname)
+  -- forlist -> NAME {, NAME} IN explist1 DO body
+  log(">> forlist: begin")
+  local e = {}
+  -- create control variables
+  new_localvarliteral("(for generator)")
+  new_localvarliteral("(for state)")
+  new_localvarliteral("(for control)")
+  -- create declared variables
+  new_localvar(indexname)
+  while testnext(",") do
+    new_localvar(str_checkname())
+  end
+  checknext("in")
+  local line = line
+  log("forlist: explist1")
+  explist1(e)
+  log("forlist: body")
+  forbody(false)
+  log("<< forlist: end")
+end
+
+----------------------------------------------------------------------
+-- parse a function name specification
+-- * used in func_stat()
+----------------------------------------------------------------------
+
+local function funcname(v)
+  -- funcname -> NAME {field} [':' NAME]
+  log(">> funcname: begin")
+  local needself = false
+  singlevar(v)
+  while tok == "." do
+    log("funcname: -- '.' field")
+    field(v)
+  end
+  if tok == ":" then
+    log("funcname: -- ':' field")
+    needself = true
+    field(v)
+  end
+  log("<< funcname: end")
+  return needself
+end
+
+----------------------------------------------------------------------
+-- parse the single expressions needed in numerical for loops
+-- * used in fornum()
+----------------------------------------------------------------------
+
+-- this is a forward-referenced local
+function exp1()
+  -- exp1 -> expr
+  local e = {}
+  log(">> exp1: begin")
+  expr(e)
+  log("<< exp1: end")
+end
+
+----------------------------------------------------------------------
+-- parse condition in a repeat statement or an if control structure
+-- * used in repeat_stat(), test_then_block()
+----------------------------------------------------------------------
+
+local function cond()
+  -- cond -> expr
+  log(">> cond: begin")
+  local v = {}
+  expr(v)  -- read condition
+  log("<< cond: end")
+end
+
+----------------------------------------------------------------------
+-- parse part of an if control structure, including the condition
+-- * used in if_stat()
+----------------------------------------------------------------------
+
+local function test_then_block()
+  -- test_then_block -> [IF | ELSEIF] cond THEN block
+  nextt()  -- skip IF or ELSEIF
+  log("test_then_block: test condition")
+  cond()
+  checknext("then")
+  log("test_then_block: then block")
+  block()  -- 'then' part
+end
+
+----------------------------------------------------------------------
+-- parse a local function statement
+-- * used in local_stat()
+----------------------------------------------------------------------
+
+local function localfunc()
+  -- localfunc -> NAME body
+  local v, b = {}
+  log("localfunc: begin")
+  new_localvar(str_checkname())
+  v.k = "VLOCAL"
+  log("localfunc: body")
+  body(b, false, llex.ln)
+  log("localfunc: end")
+end
+
+----------------------------------------------------------------------
+-- parse a local variable declaration statement
+-- * used in local_stat()
+----------------------------------------------------------------------
+
+local function localstat()
+  -- localstat -> NAME {',' NAME} ['=' explist1]
+  log(">> localstat: begin")
+  local e = {}
+  repeat
+    new_localvar(str_checkname())
+  until not testnext(",")
+  if testnext("=") then
+    log("localstat: -- assignment")
+    explist1(e)
+  else
+    e.k = "VVOID"
+  end
+  log("<< localstat: end")
+end
+
+----------------------------------------------------------------------
+-- parse a list of comma-separated expressions
+-- * used in return_stat(), localstat(), funcargs(), assignment(),
+--   forlist()
+----------------------------------------------------------------------
+
+-- this is a forward-referenced local
+function explist1(e)
+  -- explist1 -> expr { ',' expr }
+  log(">> explist1: begin")
+  expr(e)
+  while testnext(",") do
+    log("explist1: ',' -- continuation")
+    expr(e)
+  end
+  log("<< explist1: end")
+end
+
+----------------------------------------------------------------------
+-- parse function declaration body
+-- * used in simpleexp(), localfunc(), func_stat()
+----------------------------------------------------------------------
+
+-- this is a forward-referenced local
+function body(e, needself, line)
+  -- body ->  '(' parlist ')' chunk END
+  open_func()
+  log("body: begin")
+  checknext("(")
+  if needself then
+    new_localvarliteral("self")
+  end
+  log("body: parlist")
+  parlist()
+  checknext(")")
+  log("body: chunk")
+  chunk()
+  check_match("end", "function", line)
+  log("body: end")
+  close_func()
+end
+
+----------------------------------------------------------------------
+-- parse a code block or unit
+-- * used in do_stat(), while_stat(), forbody(), test_then_block(),
+--   if_stat()
+----------------------------------------------------------------------
+
+-- this is a forward-referenced local
+function block()
+  -- block -> chunk
+  log("block: begin")
+  enterblock(false)
+  chunk()
+  leaveblock()
+  log("block: end")
+end
+
+--[[--------------------------------------------------------------------
+-- second level parsing functions, all with '_stat' suffix
+-- * since they are called via a table lookup, they cannot be local
+--   functions (a lookup table of local functions might be smaller...)
+-- * stat() -> *_stat()
+----------------------------------------------------------------------]]
+
+----------------------------------------------------------------------
+-- initial parsing for a for loop, calls fornum() or forlist()
+-- * removed 'line' parameter (used to set debug information only)
+-- * used in stat()
+----------------------------------------------------------------------
+
+function for_stat()
+  -- stat -> for_stat -> FOR (fornum | forlist) END
+  local line = line
+  log("for_stat: begin")
+  enterblock(true)  -- scope for loop and control variables
+  nextt()  -- skip 'for'
+  local varname = str_checkname()  -- first variable name
+  local c = tok
+  if c == "=" then
+    log("for_stat: numerical loop")
+    fornum(varname)
+  elseif c == "," or c == "in" then
+    log("for_stat: list-based loop")
+    forlist(varname)
+  else
+    syntaxerror("'=' or 'in' expected")
+  end
+  check_match("end", "for", line)
+  leaveblock()  -- loop scope (`break' jumps to this point)
+  log("for_stat: end")
+end
+
+----------------------------------------------------------------------
+-- parse a while-do control structure, body processed by block()
+-- * used in stat()
+----------------------------------------------------------------------
+
+function while_stat()
+  -- stat -> while_stat -> WHILE cond DO block END
+  local line = line
+  nextt()  -- skip WHILE
+  log("while_stat: begin/condition")
+  cond()  -- parse condition
+  enterblock(true)
+  checknext("do")
+  log("while_stat: block")
+  block()
+  check_match("end", "while", line)
+  leaveblock()
+  log("while_stat: end")
+end
+
+----------------------------------------------------------------------
+-- parse a repeat-until control structure, body parsed by chunk()
+-- * originally, repeatstat() calls breakstat() too if there is an
+--   upvalue in the scope block; nothing is actually lexed, it is
+--   actually the common code in breakstat() for closing of upvalues
+-- * used in stat()
+----------------------------------------------------------------------
+
+function repeat_stat()
+  -- stat -> repeat_stat -> REPEAT block UNTIL cond
+  local line = line
+  log("repeat_stat: begin")
+  enterblock(true)  -- loop block
+  enterblock(false)  -- scope block
+  nextt()  -- skip REPEAT
+  chunk()
+  check_match("until", "repeat", line)
+  log("repeat_stat: condition")
+  cond()
+  -- close upvalues at scope level below
+  leaveblock()  -- finish scope
+  leaveblock()  -- finish loop
+  log("repeat_stat: end")
+end
+
+----------------------------------------------------------------------
+-- parse an if control structure
+-- * used in stat()
+----------------------------------------------------------------------
+
+function if_stat()
+  -- stat -> if_stat -> IF cond THEN block
+  --                    {ELSEIF cond THEN block} [ELSE block] END
+  local line = line
+  local v = {}
+  log("if_stat: if...then")
+  test_then_block()  -- IF cond THEN block
+  while tok == "elseif" do
+    log("if_stat: elseif...then")
+    test_then_block()  -- ELSEIF cond THEN block
+  end
+  if tok == "else" then
+    log("if_stat: else...")
+    nextt()  -- skip ELSE
+    block()  -- 'else' part
+  end
+  check_match("end", "if", line)
+  log("if_stat: end")
+end
+
+----------------------------------------------------------------------
+-- parse a return statement
+-- * used in stat()
+----------------------------------------------------------------------
+
+function return_stat()
+  -- stat -> return_stat -> RETURN explist
+  local e = {}
+  nextt()  -- skip RETURN
+  local c = tok
+  if block_follow[c] or c == ";" then
+    -- return no values
+    log("return_stat: no return values")
+  else
+    log("return_stat: begin")
+    explist1(e)  -- optional return values
+    log("return_stat: end")
+  end
+end
+
+----------------------------------------------------------------------
+-- parse a break statement
+-- * used in stat()
+----------------------------------------------------------------------
+
+function break_stat()
+  -- stat -> break_stat -> BREAK
+  local bl = fs.bl
+  nextt()  -- skip BREAK
+  while bl and not bl.isbreakable do -- find a breakable block
+    bl = bl.prev
+  end
+  if not bl then
+    syntaxerror("no loop to break")
+  end
+  log("break_stat: -- break out of loop")
+end
+
+----------------------------------------------------------------------
+-- parse a function call with no returns or an assignment statement
+-- * the struct with .prev is used for name searching in lparse.c,
+--   so it is retained for now; present in assignment() also
+-- * used in stat()
+----------------------------------------------------------------------
+
+function expr_stat()
+  -- stat -> expr_stat -> func | assignment
+  local v = {}
+  v.v = {}
+  primaryexp(v.v)
+  if v.v.k == "VCALL" then  -- stat -> func
+    -- call statement uses no results
+    log("expr_stat: function call k='"..v.v.k.."'")
+  else  -- stat -> assignment
+    log("expr_stat: assignment k='"..v.v.k.."'")
+    v.prev = nil
+    assignment(v)
+  end
+end
+
+----------------------------------------------------------------------
+-- parse a function statement
+-- * used in stat()
+----------------------------------------------------------------------
+
+function function_stat()
+  -- stat -> function_stat -> FUNCTION funcname body
+  local line = line
+  local v, b = {}, {}
+  log("function_stat: begin")
+  nextt()  -- skip FUNCTION
+  local needself = funcname(v)
+  log("function_stat: body needself='"..base.tostring(needself).."'")
+  body(b, needself, line)
+  log("function_stat: end")
+end
+
+----------------------------------------------------------------------
+-- parse a simple block enclosed by a DO..END pair
+-- * used in stat()
+----------------------------------------------------------------------
+
+function do_stat()
+  -- stat -> do_stat -> DO block END
+  local line = line
+  nextt()  -- skip DO
+  log("do_stat: begin")
+  block()
+  log("do_stat: end")
+  check_match("end", "do", line)
+end
+
+----------------------------------------------------------------------
+-- parse a statement starting with LOCAL
+-- * used in stat()
+----------------------------------------------------------------------
+
+function local_stat()
+  -- stat -> local_stat -> LOCAL FUNCTION localfunc
+  --                    -> LOCAL localstat
+  nextt()  -- skip LOCAL
+  if testnext("function") then  -- local function?
+    log("local_stat: local function")
+    localfunc()
+  else
+    log("local_stat: local statement")
+    localstat()
+  end
+end
+
+--[[--------------------------------------------------------------------
+-- main functions, top level parsing functions
+-- * accessible functions are: init(lexer), parser()
+-- * [entry] -> parser() -> chunk() -> stat()
+----------------------------------------------------------------------]]
+
+----------------------------------------------------------------------
+-- initial parsing for statements, calls '_stat' suffixed functions
+-- * used in chunk()
+----------------------------------------------------------------------
+
+local function stat()
+  -- stat -> if_stat while_stat do_stat for_stat repeat_stat
+  --         function_stat local_stat return_stat break_stat
+  --         expr_stat
+  line = llex.ln  -- may be needed for error messages
+  local c = tok
+  local fn = stat_call[c]
+  -- handles: if while do for repeat function local return break
+  if fn then
+    log("-- STATEMENT: begin '"..c.."' line="..line)
+    _G[fn]()
+    log("-- STATEMENT: end '"..c.."'")
+    -- return or break must be last statement
+    if c == "return" or c == "break" then return true end
+  else
+    log("-- STATEMENT: begin 'expr' line="..line)
+    expr_stat()
+    log("-- STATEMENT: end 'expr'")
+  end
+  log("")
+  return false
+end
+
+----------------------------------------------------------------------
+-- parse a chunk, which consists of a bunch of statements
+-- * used in parser(), body(), block(), repeat_stat()
+----------------------------------------------------------------------
+
+function chunk()
+  -- chunk -> { stat [';'] }
+  log("chunk:")
+  local islast = false
+  while not islast and not block_follow[tok] do
+    islast = stat()
+    testnext(";")
+  end
+end
+
+----------------------------------------------------------------------
+-- performs parsing, returns parsed data structure
+----------------------------------------------------------------------
+
+function parser()
+  log("-- TOP: begin")
+  open_func()
+  fs.is_vararg = true  -- main func. is always vararg
+  log("")
+  nextt()  -- read first token
+  chunk()
+  check("<eof>")
+  close_func()
+  log("-- TOP: end")
+  return top_fs
+end
+
+----------------------------------------------------------------------
+-- initialization function
+----------------------------------------------------------------------
+
+function init(lexer)
+  llex = lexer                  -- set lexer (assume user-initialized)
+  llex_lex = llex.llex
+  top_fs = {}                   -- reset top level function state
+end
+
+return _G
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_01.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_01.lua
new file mode 100644
index 0000000..379cc9d
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_01.lua
@@ -0,0 +1,9 @@
+-- START OF SOURCE --
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_02.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_02.lua
new file mode 100644
index 0000000..13eb2e6
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_02.lua
@@ -0,0 +1,10 @@
+-- START OF SOURCE --
+-- foobar
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_03.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_03.lua
new file mode 100644
index 0000000..33df29c
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_03.lua
@@ -0,0 +1,21 @@
+-- START OF SOURCE --
+do
+end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'do' line=1
+  do_stat: begin
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    leaveblock
+  block: end
+  do_stat: end
+  -- STATEMENT: end 'do'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_04.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_04.lua
new file mode 100644
index 0000000..d0fefbc
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_04.lua
@@ -0,0 +1,31 @@
+-- START OF SOURCE --
+do end
+do end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'do' line=1
+  do_stat: begin
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    leaveblock
+  block: end
+  do_stat: end
+  -- STATEMENT: end 'do'
+  
+  -- STATEMENT: begin 'do' line=2
+  do_stat: begin
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    leaveblock
+  block: end
+  do_stat: end
+  -- STATEMENT: end 'do'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_05.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_05.lua
new file mode 100644
index 0000000..17a9231
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_05.lua
@@ -0,0 +1,129 @@
+-- START OF SOURCE --
+foo()
+foo{}
+foo""
+foo:bar()
+foo=false
+foo.bar=true
+foo[true]=nil
+foo,bar=1,"a"
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'expr' line=1
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  primaryexp: ( funcargs
+    funcargs: begin '('
+    funcargs: end -- expr is a VCALL
+  expr_stat: function call k='VCALL'
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=2
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  primaryexp: { funcargs
+    funcargs: begin '{'
+      constructor: begin
+      constructor: end
+    funcargs: end -- expr is a VCALL
+  expr_stat: function call k='VCALL'
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=3
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  primaryexp: <string> funcargs
+    funcargs: begin <string>
+        codestring: ""
+    funcargs: end -- expr is a VCALL
+  expr_stat: function call k='VCALL'
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=4
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  primaryexp: :<name> funcargs
+      checkname:
+      str_checkname: 'bar'
+      codestring: "bar"
+    funcargs: begin '('
+    funcargs: end -- expr is a VCALL
+  expr_stat: function call k='VCALL'
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=5
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: false
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=6
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  primaryexp: '.' field
+    field: operator=.
+      checkname:
+      str_checkname: 'bar'
+      codestring: "bar"
+  expr_stat: assignment k='VINDEXED'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: true
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=7
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  primaryexp: [ exp1 ]
+    index: begin '['
+    expr:
+    simpleexp: true
+    index: end ']'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: nil
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=8
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: ',' -- next LHS element
+  prefixexp: <name>
+      str_checkname: 'bar'
+      singlevar(kind): 'VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: <number>=1
+    explist1: ',' -- continuation
+    expr:
+    simpleexp: <string>=a
+        codestring: "a"
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_06.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_06.lua
new file mode 100644
index 0000000..29f1703
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_06.lua
@@ -0,0 +1,132 @@
+-- START OF SOURCE --
+foo=true
+foo=false
+foo=nil
+foo=1.23e45
+foo=-1
+foo=(0)
+foo=1+2
+foo=1+2*3-4/5
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'expr' line=1
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: true
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=2
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: false
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=3
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: nil
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=4
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: <number>=1.23e+45
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=5
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+      subexpr: uop='-'
+    simpleexp: <number>=1
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=6
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+      prefixexp: begin ( expr ) 
+      expr:
+      simpleexp: <number>=0
+      prefixexp: end ( expr ) 
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=7
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: <number>=1
+      subexpr: binop='+'
+      simpleexp: <number>=2
+      subexpr: -- evaluate
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=8
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: <number>=1
+      subexpr: binop='+'
+      simpleexp: <number>=2
+        subexpr: binop='*'
+        simpleexp: <number>=3
+        subexpr: -- evaluate
+      subexpr: -- evaluate
+      subexpr: binop='-'
+      simpleexp: <number>=4
+        subexpr: binop='/'
+        simpleexp: <number>=5
+        subexpr: -- evaluate
+      subexpr: -- evaluate
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_07.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_07.lua
new file mode 100644
index 0000000..c3a4600
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_07.lua
@@ -0,0 +1,147 @@
+-- START OF SOURCE --
+if foo then foo=1 end
+if foo then foo=1 else foo=0 end
+if foo then foo=1 elseif not foo then foo=0 end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'if' line=1
+  if_stat: if...then
+  test_then_block: test condition
+    cond: begin
+    expr:
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    cond: end
+  test_then_block: then block
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'expr' line=1
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    expr_stat: assignment k='VGLOBAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      simpleexp: <number>=1
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    leaveblock
+  block: end
+  if_stat: end
+  -- STATEMENT: end 'if'
+  
+  -- STATEMENT: begin 'if' line=2
+  if_stat: if...then
+  test_then_block: test condition
+    cond: begin
+    expr:
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    cond: end
+  test_then_block: then block
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'expr' line=2
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    expr_stat: assignment k='VGLOBAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      simpleexp: <number>=1
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    leaveblock
+  block: end
+  if_stat: else...
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'expr' line=2
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    expr_stat: assignment k='VGLOBAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      simpleexp: <number>=0
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    leaveblock
+  block: end
+  if_stat: end
+  -- STATEMENT: end 'if'
+  
+  -- STATEMENT: begin 'if' line=3
+  if_stat: if...then
+  test_then_block: test condition
+    cond: begin
+    expr:
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    cond: end
+  test_then_block: then block
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'expr' line=3
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    expr_stat: assignment k='VGLOBAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      simpleexp: <number>=1
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    leaveblock
+  block: end
+  if_stat: elseif...then
+  test_then_block: test condition
+    cond: begin
+    expr:
+      subexpr: uop='not'
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    cond: end
+  test_then_block: then block
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'expr' line=3
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    expr_stat: assignment k='VGLOBAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      simpleexp: <number>=0
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    leaveblock
+  block: end
+  if_stat: end
+  -- STATEMENT: end 'if'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_08.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_08.lua
new file mode 100644
index 0000000..d086c98
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_08.lua
@@ -0,0 +1,66 @@
+-- START OF SOURCE --
+do return end
+do return 123 end
+do return "foo","bar" end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'do' line=1
+  do_stat: begin
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'return' line=1
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    leaveblock
+  block: end
+  do_stat: end
+  -- STATEMENT: end 'do'
+  
+  -- STATEMENT: begin 'do' line=2
+  do_stat: begin
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'return' line=2
+    return_stat: begin
+      explist1: begin
+      expr:
+      simpleexp: <number>=123
+      explist1: end
+    return_stat: end
+    -- STATEMENT: end 'return'
+    leaveblock
+  block: end
+  do_stat: end
+  -- STATEMENT: end 'do'
+  
+  -- STATEMENT: begin 'do' line=3
+  do_stat: begin
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'return' line=3
+    return_stat: begin
+      explist1: begin
+      expr:
+      simpleexp: <string>=foo
+          codestring: "foo"
+      explist1: ',' -- continuation
+      expr:
+      simpleexp: <string>=bar
+          codestring: "bar"
+      explist1: end
+    return_stat: end
+    -- STATEMENT: end 'return'
+    leaveblock
+  block: end
+  do_stat: end
+  -- STATEMENT: end 'do'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_09.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_09.lua
new file mode 100644
index 0000000..67c6cf3
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_09.lua
@@ -0,0 +1,103 @@
+-- START OF SOURCE --
+while true do foo=not foo end
+while foo~=42 do foo=foo-1 end
+while true do break end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'while' line=1
+  while_stat: begin/condition
+    cond: begin
+    expr:
+    simpleexp: true
+    cond: end
+    enterblock(isbreakable=true)
+    while_stat: block
+    block: begin
+      enterblock(isbreakable=false)
+      chunk:
+      -- STATEMENT: begin 'expr' line=1
+      prefixexp: <name>
+          str_checkname: 'foo'
+          singlevar(kind): 'VGLOBAL'
+      expr_stat: assignment k='VGLOBAL'
+      assignment: '=' -- RHS elements follows
+        explist1: begin
+        expr:
+          subexpr: uop='not'
+        prefixexp: <name>
+            str_checkname: 'foo'
+            singlevar(kind): 'VGLOBAL'
+        explist1: end
+      -- STATEMENT: end 'expr'
+      
+      leaveblock
+    block: end
+    leaveblock
+  while_stat: end
+  -- STATEMENT: end 'while'
+  
+  -- STATEMENT: begin 'while' line=2
+  while_stat: begin/condition
+    cond: begin
+    expr:
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+      subexpr: binop='~='
+      simpleexp: <number>=42
+      subexpr: -- evaluate
+    cond: end
+    enterblock(isbreakable=true)
+    while_stat: block
+    block: begin
+      enterblock(isbreakable=false)
+      chunk:
+      -- STATEMENT: begin 'expr' line=2
+      prefixexp: <name>
+          str_checkname: 'foo'
+          singlevar(kind): 'VGLOBAL'
+      expr_stat: assignment k='VGLOBAL'
+      assignment: '=' -- RHS elements follows
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'foo'
+            singlevar(kind): 'VGLOBAL'
+          subexpr: binop='-'
+          simpleexp: <number>=1
+          subexpr: -- evaluate
+        explist1: end
+      -- STATEMENT: end 'expr'
+      
+      leaveblock
+    block: end
+    leaveblock
+  while_stat: end
+  -- STATEMENT: end 'while'
+  
+  -- STATEMENT: begin 'while' line=3
+  while_stat: begin/condition
+    cond: begin
+    expr:
+    simpleexp: true
+    cond: end
+    enterblock(isbreakable=true)
+    while_stat: block
+    block: begin
+      enterblock(isbreakable=false)
+      chunk:
+      -- STATEMENT: begin 'break' line=3
+      break_stat: -- break out of loop
+      -- STATEMENT: end 'break'
+      leaveblock
+    block: end
+    leaveblock
+  while_stat: end
+  -- STATEMENT: end 'while'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_10.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_10.lua
new file mode 100644
index 0000000..b8e7754
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_10.lua
@@ -0,0 +1,100 @@
+-- START OF SOURCE --
+repeat foo=foo.."bar" until false
+repeat foo=foo/2 until foo<1
+repeat break until false
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'repeat' line=1
+  repeat_stat: begin
+    enterblock(isbreakable=true)
+      enterblock(isbreakable=false)
+      chunk:
+      -- STATEMENT: begin 'expr' line=1
+      prefixexp: <name>
+          str_checkname: 'foo'
+          singlevar(kind): 'VGLOBAL'
+      expr_stat: assignment k='VGLOBAL'
+      assignment: '=' -- RHS elements follows
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'foo'
+            singlevar(kind): 'VGLOBAL'
+          subexpr: binop='..'
+          simpleexp: <string>=bar
+              codestring: "bar"
+          subexpr: -- evaluate
+        explist1: end
+      -- STATEMENT: end 'expr'
+      
+      repeat_stat: condition
+        cond: begin
+        expr:
+        simpleexp: false
+        cond: end
+      leaveblock
+    leaveblock
+  repeat_stat: end
+  -- STATEMENT: end 'repeat'
+  
+  -- STATEMENT: begin 'repeat' line=2
+  repeat_stat: begin
+    enterblock(isbreakable=true)
+      enterblock(isbreakable=false)
+      chunk:
+      -- STATEMENT: begin 'expr' line=2
+      prefixexp: <name>
+          str_checkname: 'foo'
+          singlevar(kind): 'VGLOBAL'
+      expr_stat: assignment k='VGLOBAL'
+      assignment: '=' -- RHS elements follows
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'foo'
+            singlevar(kind): 'VGLOBAL'
+          subexpr: binop='/'
+          simpleexp: <number>=2
+          subexpr: -- evaluate
+        explist1: end
+      -- STATEMENT: end 'expr'
+      
+      repeat_stat: condition
+        cond: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'foo'
+            singlevar(kind): 'VGLOBAL'
+          subexpr: binop='<'
+          simpleexp: <number>=1
+          subexpr: -- evaluate
+        cond: end
+      leaveblock
+    leaveblock
+  repeat_stat: end
+  -- STATEMENT: end 'repeat'
+  
+  -- STATEMENT: begin 'repeat' line=3
+  repeat_stat: begin
+    enterblock(isbreakable=true)
+      enterblock(isbreakable=false)
+      chunk:
+      -- STATEMENT: begin 'break' line=3
+      break_stat: -- break out of loop
+      -- STATEMENT: end 'break'
+      repeat_stat: condition
+        cond: begin
+        expr:
+        simpleexp: false
+        cond: end
+      leaveblock
+    leaveblock
+  repeat_stat: end
+  -- STATEMENT: end 'repeat'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_11.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_11.lua
new file mode 100644
index 0000000..461ea82
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_11.lua
@@ -0,0 +1,192 @@
+-- START OF SOURCE --
+for i=1,10 do foo=i end
+for i=1,10,2 do break end
+for i in foo do bar=0 end
+for i,j in foo,bar do baz=0 end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'for' line=1
+  for_stat: begin
+    enterblock(isbreakable=true)
+        str_checkname: 'i'
+    for_stat: numerical loop
+        new_localvar: '(for index)'
+        new_localvar: '(for limit)'
+        new_localvar: '(for step)'
+        new_localvar: 'i'
+      fornum: begin
+      fornum: index start
+        exp1: begin
+        expr:
+        simpleexp: <number>=1
+        exp1: end
+      fornum: index stop
+        exp1: begin
+        expr:
+        simpleexp: <number>=10
+        exp1: end
+      fornum: body
+        enterblock(isbreakable=false)
+        block: begin
+          enterblock(isbreakable=false)
+          chunk:
+          -- STATEMENT: begin 'expr' line=1
+          prefixexp: <name>
+              str_checkname: 'foo'
+              singlevar(kind): 'VGLOBAL'
+          expr_stat: assignment k='VGLOBAL'
+          assignment: '=' -- RHS elements follows
+            explist1: begin
+            expr:
+            prefixexp: <name>
+                str_checkname: 'i'
+                singlevar(kind): 'VLOCAL'
+            explist1: end
+          -- STATEMENT: end 'expr'
+          
+          leaveblock
+        block: end
+        leaveblock
+      fornum: end
+    leaveblock
+  for_stat: end
+  -- STATEMENT: end 'for'
+  
+  -- STATEMENT: begin 'for' line=2
+  for_stat: begin
+    enterblock(isbreakable=true)
+        str_checkname: 'i'
+    for_stat: numerical loop
+        new_localvar: '(for index)'
+        new_localvar: '(for limit)'
+        new_localvar: '(for step)'
+        new_localvar: 'i'
+      fornum: begin
+      fornum: index start
+        exp1: begin
+        expr:
+        simpleexp: <number>=1
+        exp1: end
+      fornum: index stop
+        exp1: begin
+        expr:
+        simpleexp: <number>=10
+        exp1: end
+      fornum: index step
+        exp1: begin
+        expr:
+        simpleexp: <number>=2
+        exp1: end
+      fornum: body
+        enterblock(isbreakable=false)
+        block: begin
+          enterblock(isbreakable=false)
+          chunk:
+          -- STATEMENT: begin 'break' line=2
+          break_stat: -- break out of loop
+          -- STATEMENT: end 'break'
+          leaveblock
+        block: end
+        leaveblock
+      fornum: end
+    leaveblock
+  for_stat: end
+  -- STATEMENT: end 'for'
+  
+  -- STATEMENT: begin 'for' line=3
+  for_stat: begin
+    enterblock(isbreakable=true)
+        str_checkname: 'i'
+    for_stat: list-based loop
+      forlist: begin
+          new_localvar: '(for generator)'
+          new_localvar: '(for state)'
+          new_localvar: '(for control)'
+          new_localvar: 'i'
+      forlist: explist1
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'foo'
+            singlevar(kind): 'VGLOBAL'
+        explist1: end
+      forlist: body
+        enterblock(isbreakable=false)
+        block: begin
+          enterblock(isbreakable=false)
+          chunk:
+          -- STATEMENT: begin 'expr' line=3
+          prefixexp: <name>
+              str_checkname: 'bar'
+              singlevar(kind): 'VGLOBAL'
+          expr_stat: assignment k='VGLOBAL'
+          assignment: '=' -- RHS elements follows
+            explist1: begin
+            expr:
+            simpleexp: <number>=0
+            explist1: end
+          -- STATEMENT: end 'expr'
+          
+          leaveblock
+        block: end
+        leaveblock
+      forlist: end
+    leaveblock
+  for_stat: end
+  -- STATEMENT: end 'for'
+  
+  -- STATEMENT: begin 'for' line=4
+  for_stat: begin
+    enterblock(isbreakable=true)
+        str_checkname: 'i'
+    for_stat: list-based loop
+      forlist: begin
+          new_localvar: '(for generator)'
+          new_localvar: '(for state)'
+          new_localvar: '(for control)'
+          new_localvar: 'i'
+          str_checkname: 'j'
+          new_localvar: 'j'
+      forlist: explist1
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'foo'
+            singlevar(kind): 'VGLOBAL'
+        explist1: ',' -- continuation
+        expr:
+        prefixexp: <name>
+            str_checkname: 'bar'
+            singlevar(kind): 'VGLOBAL'
+        explist1: end
+      forlist: body
+        enterblock(isbreakable=false)
+        block: begin
+          enterblock(isbreakable=false)
+          chunk:
+          -- STATEMENT: begin 'expr' line=4
+          prefixexp: <name>
+              str_checkname: 'baz'
+              singlevar(kind): 'VGLOBAL'
+          expr_stat: assignment k='VGLOBAL'
+          assignment: '=' -- RHS elements follows
+            explist1: begin
+            expr:
+            simpleexp: <number>=0
+            explist1: end
+          -- STATEMENT: end 'expr'
+          
+          leaveblock
+        block: end
+        leaveblock
+      forlist: end
+    leaveblock
+  for_stat: end
+  -- STATEMENT: end 'for'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_12.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_12.lua
new file mode 100644
index 0000000..c423d85
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_12.lua
@@ -0,0 +1,52 @@
+-- START OF SOURCE --
+local foo
+local foo,bar,baz
+local foo,bar="foo","bar"
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'local' line=1
+  local_stat: local statement
+    localstat: begin
+        str_checkname: 'foo'
+        new_localvar: 'foo'
+    localstat: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'local' line=2
+  local_stat: local statement
+    localstat: begin
+        str_checkname: 'foo'
+        new_localvar: 'foo'
+        str_checkname: 'bar'
+        new_localvar: 'bar'
+        str_checkname: 'baz'
+        new_localvar: 'baz'
+    localstat: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'local' line=3
+  local_stat: local statement
+    localstat: begin
+        str_checkname: 'foo'
+        new_localvar: 'foo'
+        str_checkname: 'bar'
+        new_localvar: 'bar'
+    localstat: -- assignment
+      explist1: begin
+      expr:
+      simpleexp: <string>=foo
+          codestring: "foo"
+      explist1: ',' -- continuation
+      expr:
+      simpleexp: <string>=bar
+          codestring: "bar"
+      explist1: end
+    localstat: end
+  -- STATEMENT: end 'local'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_13.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_13.lua
new file mode 100644
index 0000000..b5f598a
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_13.lua
@@ -0,0 +1,108 @@
+-- START OF SOURCE --
+local function foo() return end
+local function foo(a) return end
+local function foo(x,y,z) return end
+local function foo(x,...) return end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'local' line=1
+  local_stat: local function
+  localfunc: begin
+      str_checkname: 'foo'
+      new_localvar: 'foo'
+  localfunc: body
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=1
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  localfunc: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'local' line=2
+  local_stat: local function
+  localfunc: begin
+      str_checkname: 'foo'
+      new_localvar: 'foo'
+  localfunc: body
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'a'
+          new_localvar: 'a'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=2
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  localfunc: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'local' line=3
+  local_stat: local function
+  localfunc: begin
+      str_checkname: 'foo'
+      new_localvar: 'foo'
+  localfunc: body
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'x'
+          new_localvar: 'x'
+          str_checkname: 'y'
+          new_localvar: 'y'
+          str_checkname: 'z'
+          new_localvar: 'z'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=3
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  localfunc: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'local' line=4
+  local_stat: local function
+  localfunc: begin
+      str_checkname: 'foo'
+      new_localvar: 'foo'
+  localfunc: body
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'x'
+          new_localvar: 'x'
+      parlist: ... (dots)
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=4
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  localfunc: end
+  -- STATEMENT: end 'local'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_14.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_14.lua
new file mode 100644
index 0000000..a6b9ad0
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_14.lua
@@ -0,0 +1,112 @@
+-- START OF SOURCE --
+function foo() return end
+function foo(a) return end
+function foo(x,y,z) return end
+function foo(x,...) return end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'function' line=1
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=1
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  -- STATEMENT: begin 'function' line=2
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'a'
+          new_localvar: 'a'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=2
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  -- STATEMENT: begin 'function' line=3
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'x'
+          new_localvar: 'x'
+          str_checkname: 'y'
+          new_localvar: 'y'
+          str_checkname: 'z'
+          new_localvar: 'z'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=3
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  -- STATEMENT: begin 'function' line=4
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'x'
+          new_localvar: 'x'
+      parlist: ... (dots)
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=4
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_15.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_15.lua
new file mode 100644
index 0000000..497eeaf
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_15.lua
@@ -0,0 +1,140 @@
+-- START OF SOURCE --
+function foo.bar(p) return end
+function foo.bar.baz(p) return end
+function foo:bar(p) return end
+function foo.bar.baz(p) return end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'function' line=1
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    funcname: -- '.' field
+      field: operator=.
+        checkname:
+        str_checkname: 'bar'
+        codestring: "bar"
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'p'
+          new_localvar: 'p'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=1
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  -- STATEMENT: begin 'function' line=2
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    funcname: -- '.' field
+      field: operator=.
+        checkname:
+        str_checkname: 'bar'
+        codestring: "bar"
+    funcname: -- '.' field
+      field: operator=.
+        checkname:
+        str_checkname: 'baz'
+        codestring: "baz"
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'p'
+          new_localvar: 'p'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=2
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  -- STATEMENT: begin 'function' line=3
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    funcname: -- ':' field
+      field: operator=:
+        checkname:
+        str_checkname: 'bar'
+        codestring: "bar"
+    funcname: end
+  function_stat: body needself='true'
+    open_func
+    body: begin
+        new_localvar: 'self'
+    body: parlist
+      parlist: begin
+          str_checkname: 'p'
+          new_localvar: 'p'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=3
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  -- STATEMENT: begin 'function' line=4
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    funcname: -- '.' field
+      field: operator=.
+        checkname:
+        str_checkname: 'bar'
+        codestring: "bar"
+    funcname: -- '.' field
+      field: operator=.
+        checkname:
+        str_checkname: 'baz'
+        codestring: "baz"
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'p'
+          new_localvar: 'p'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'return' line=4
+    return_stat: no return values
+    -- STATEMENT: end 'return'
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_16.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_16.lua
new file mode 100644
index 0000000..b7907b8
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_16.lua
@@ -0,0 +1,128 @@
+-- START OF SOURCE --
+foo = function() return end
+foo = function(x,y) return end
+foo = function(...) return end
+foo = function(...) local bar = ... return end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'expr' line=1
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: function
+      open_func
+      body: begin
+      body: parlist
+        parlist: begin
+        parlist: end
+      body: chunk
+      chunk:
+      -- STATEMENT: begin 'return' line=1
+      return_stat: no return values
+      -- STATEMENT: end 'return'
+      body: end
+      close_func
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=2
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: function
+      open_func
+      body: begin
+      body: parlist
+        parlist: begin
+            str_checkname: 'x'
+            new_localvar: 'x'
+            str_checkname: 'y'
+            new_localvar: 'y'
+        parlist: end
+      body: chunk
+      chunk:
+      -- STATEMENT: begin 'return' line=2
+      return_stat: no return values
+      -- STATEMENT: end 'return'
+      body: end
+      close_func
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=3
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: function
+      open_func
+      body: begin
+      body: parlist
+        parlist: begin
+        parlist: ... (dots)
+        parlist: end
+      body: chunk
+      chunk:
+      -- STATEMENT: begin 'return' line=3
+      return_stat: no return values
+      -- STATEMENT: end 'return'
+      body: end
+      close_func
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=4
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: function
+      open_func
+      body: begin
+      body: parlist
+        parlist: begin
+        parlist: ... (dots)
+        parlist: end
+      body: chunk
+      chunk:
+      -- STATEMENT: begin 'local' line=4
+      local_stat: local statement
+        localstat: begin
+            str_checkname: 'bar'
+            new_localvar: 'bar'
+        localstat: -- assignment
+          explist1: begin
+          expr:
+          simpleexp: ...
+          explist1: end
+        localstat: end
+      -- STATEMENT: end 'local'
+      
+      -- STATEMENT: begin 'return' line=4
+      return_stat: no return values
+      -- STATEMENT: end 'return'
+      body: end
+      close_func
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_17.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_17.lua
new file mode 100644
index 0000000..fadc7f9
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_17.lua
@@ -0,0 +1,110 @@
+-- START OF SOURCE --
+foo = {}
+foo = { 1,2,3; "foo"; }
+foo = { bar=77, baz=88, }
+foo = { ["bar"]=77, ["baz"]=88, }
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'expr' line=1
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: constructor
+      constructor: begin
+      constructor: end
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=2
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: constructor
+      constructor: begin
+      listfield: expr
+      expr:
+      simpleexp: <number>=1
+      listfield: expr
+      expr:
+      simpleexp: <number>=2
+      listfield: expr
+      expr:
+      simpleexp: <number>=3
+      listfield: expr
+      expr:
+      simpleexp: <string>=foo
+          codestring: "foo"
+      constructor: end
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=3
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: constructor
+      constructor: begin
+      recfield: name
+          checkname:
+          str_checkname: 'bar'
+          codestring: "bar"
+      expr:
+      simpleexp: <number>=77
+      recfield: name
+          checkname:
+          str_checkname: 'baz'
+          codestring: "baz"
+      expr:
+      simpleexp: <number>=88
+      constructor: end
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=4
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    simpleexp: constructor
+      constructor: begin
+      recfield: [ exp1 ]
+        index: begin '['
+        expr:
+        simpleexp: <string>=bar
+            codestring: "bar"
+        index: end ']'
+      expr:
+      simpleexp: <number>=77
+      recfield: [ exp1 ]
+        index: begin '['
+        expr:
+        simpleexp: <string>=baz
+            codestring: "baz"
+        index: end ']'
+      expr:
+      simpleexp: <number>=88
+      constructor: end
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_18.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_18.lua
new file mode 100644
index 0000000..732b4d6
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_18.lua
@@ -0,0 +1,26 @@
+-- START OF SOURCE --
+  print(a)
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'expr' line=1
+  prefixexp: <name>
+      str_checkname: 'print'
+      singlevar(kind): 'VGLOBAL'
+  primaryexp: ( funcargs
+    funcargs: begin '('
+      explist1: begin
+      expr:
+      prefixexp: <name>
+          str_checkname: 'a'
+          singlevar(kind): 'VGLOBAL'
+      explist1: end
+    funcargs: end -- expr is a VCALL
+  expr_stat: function call k='VCALL'
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_19.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_19.lua
new file mode 100644
index 0000000..9863b4a
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_19.lua
@@ -0,0 +1,35 @@
+-- START OF SOURCE --
+  local a
+  print(a)
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'local' line=1
+  local_stat: local statement
+    localstat: begin
+        str_checkname: 'a'
+        new_localvar: 'a'
+    localstat: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'expr' line=2
+  prefixexp: <name>
+      str_checkname: 'print'
+      singlevar(kind): 'VGLOBAL'
+  primaryexp: ( funcargs
+    funcargs: begin '('
+      explist1: begin
+      expr:
+      prefixexp: <name>
+          str_checkname: 'a'
+          singlevar(kind): 'VLOCAL'
+      explist1: end
+    funcargs: end -- expr is a VCALL
+  expr_stat: function call k='VCALL'
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_20.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_20.lua
new file mode 100644
index 0000000..bc37280
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_20.lua
@@ -0,0 +1,64 @@
+-- START OF SOURCE --
+  do
+    local a
+    print(a)
+  end
+  print(a)
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'do' line=1
+  do_stat: begin
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'local' line=2
+    local_stat: local statement
+      localstat: begin
+          str_checkname: 'a'
+          new_localvar: 'a'
+      localstat: end
+    -- STATEMENT: end 'local'
+    
+    -- STATEMENT: begin 'expr' line=3
+    prefixexp: <name>
+        str_checkname: 'print'
+        singlevar(kind): 'VGLOBAL'
+    primaryexp: ( funcargs
+      funcargs: begin '('
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'a'
+            singlevar(kind): 'VLOCAL'
+        explist1: end
+      funcargs: end -- expr is a VCALL
+    expr_stat: function call k='VCALL'
+    -- STATEMENT: end 'expr'
+    
+    leaveblock
+  block: end
+  do_stat: end
+  -- STATEMENT: end 'do'
+  
+  -- STATEMENT: begin 'expr' line=5
+  prefixexp: <name>
+      str_checkname: 'print'
+      singlevar(kind): 'VGLOBAL'
+  primaryexp: ( funcargs
+    funcargs: begin '('
+      explist1: begin
+      expr:
+      prefixexp: <name>
+          str_checkname: 'a'
+          singlevar(kind): 'VGLOBAL'
+      explist1: end
+    funcargs: end -- expr is a VCALL
+  expr_stat: function call k='VCALL'
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_21.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_21.lua
new file mode 100644
index 0000000..b2bac4b
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_21.lua
@@ -0,0 +1,77 @@
+-- START OF SOURCE --
+  local a,b,c
+  do
+    local b
+    print(b)
+  end
+  print(b)
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'local' line=1
+  local_stat: local statement
+    localstat: begin
+        str_checkname: 'a'
+        new_localvar: 'a'
+        str_checkname: 'b'
+        new_localvar: 'b'
+        str_checkname: 'c'
+        new_localvar: 'c'
+    localstat: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'do' line=2
+  do_stat: begin
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'local' line=3
+    local_stat: local statement
+      localstat: begin
+          str_checkname: 'b'
+          new_localvar: 'b'
+      localstat: end
+    -- STATEMENT: end 'local'
+    
+    -- STATEMENT: begin 'expr' line=4
+    prefixexp: <name>
+        str_checkname: 'print'
+        singlevar(kind): 'VGLOBAL'
+    primaryexp: ( funcargs
+      funcargs: begin '('
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'b'
+            singlevar(kind): 'VLOCAL'
+        explist1: end
+      funcargs: end -- expr is a VCALL
+    expr_stat: function call k='VCALL'
+    -- STATEMENT: end 'expr'
+    
+    leaveblock
+  block: end
+  do_stat: end
+  -- STATEMENT: end 'do'
+  
+  -- STATEMENT: begin 'expr' line=6
+  prefixexp: <name>
+      str_checkname: 'print'
+      singlevar(kind): 'VGLOBAL'
+  primaryexp: ( funcargs
+    funcargs: begin '('
+      explist1: begin
+      expr:
+      prefixexp: <name>
+          str_checkname: 'b'
+          singlevar(kind): 'VLOCAL'
+      explist1: end
+    funcargs: end -- expr is a VCALL
+  expr_stat: function call k='VCALL'
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_22.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_22.lua
new file mode 100644
index 0000000..6885f01
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_22.lua
@@ -0,0 +1,43 @@
+-- START OF SOURCE --
+  local function foo() end
+  bar = foo
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'local' line=1
+  local_stat: local function
+  localfunc: begin
+      str_checkname: 'foo'
+      new_localvar: 'foo'
+  localfunc: body
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+      parlist: end
+    body: chunk
+    chunk:
+    body: end
+    close_func
+  localfunc: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'expr' line=2
+  prefixexp: <name>
+      str_checkname: 'bar'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VLOCAL'
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_23.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_23.lua
new file mode 100644
index 0000000..eb658ed
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_23.lua
@@ -0,0 +1,70 @@
+-- START OF SOURCE --
+  do
+    local function foo() end
+    bar = foo
+  end
+  baz = foo
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'do' line=1
+  do_stat: begin
+  block: begin
+    enterblock(isbreakable=false)
+    chunk:
+    -- STATEMENT: begin 'local' line=2
+    local_stat: local function
+    localfunc: begin
+        str_checkname: 'foo'
+        new_localvar: 'foo'
+    localfunc: body
+      open_func
+      body: begin
+      body: parlist
+        parlist: begin
+        parlist: end
+      body: chunk
+      chunk:
+      body: end
+      close_func
+    localfunc: end
+    -- STATEMENT: end 'local'
+    
+    -- STATEMENT: begin 'expr' line=3
+    prefixexp: <name>
+        str_checkname: 'bar'
+        singlevar(kind): 'VGLOBAL'
+    expr_stat: assignment k='VGLOBAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      prefixexp: <name>
+          str_checkname: 'foo'
+          singlevar(kind): 'VLOCAL'
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    leaveblock
+  block: end
+  do_stat: end
+  -- STATEMENT: end 'do'
+  
+  -- STATEMENT: begin 'expr' line=5
+  prefixexp: <name>
+      str_checkname: 'baz'
+      singlevar(kind): 'VGLOBAL'
+  expr_stat: assignment k='VGLOBAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_24.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_24.lua
new file mode 100644
index 0000000..6403234
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_24.lua
@@ -0,0 +1,84 @@
+-- START OF SOURCE --
+  local foo
+  local function bar()
+    baz = nil
+    foo = bar()
+  end
+  foo = bar
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'local' line=1
+  local_stat: local statement
+    localstat: begin
+        str_checkname: 'foo'
+        new_localvar: 'foo'
+    localstat: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'local' line=2
+  local_stat: local function
+  localfunc: begin
+      str_checkname: 'bar'
+      new_localvar: 'bar'
+  localfunc: body
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'expr' line=3
+    prefixexp: <name>
+        str_checkname: 'baz'
+        singlevar(kind): 'VGLOBAL'
+    expr_stat: assignment k='VGLOBAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      simpleexp: nil
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    -- STATEMENT: begin 'expr' line=4
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VUPVAL'
+    expr_stat: assignment k='VUPVAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      prefixexp: <name>
+          str_checkname: 'bar'
+          singlevar(kind): 'VUPVAL'
+      primaryexp: ( funcargs
+        funcargs: begin '('
+        funcargs: end -- expr is a VCALL
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    body: end
+    close_func
+  localfunc: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'expr' line=6
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VLOCAL'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    prefixexp: <name>
+        str_checkname: 'bar'
+        singlevar(kind): 'VLOCAL'
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_25.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_25.lua
new file mode 100644
index 0000000..594e267
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_25.lua
@@ -0,0 +1,159 @@
+-- START OF SOURCE --
+  local foo
+  local function bar()
+    local function baz()
+      local foo, bar
+      foo = bar
+      foo = baz
+    end
+    foo = bar
+    foo = baz
+  end
+  foo = bar
+  foo = baz
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'local' line=1
+  local_stat: local statement
+    localstat: begin
+        str_checkname: 'foo'
+        new_localvar: 'foo'
+    localstat: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'local' line=2
+  local_stat: local function
+  localfunc: begin
+      str_checkname: 'bar'
+      new_localvar: 'bar'
+  localfunc: body
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'local' line=3
+    local_stat: local function
+    localfunc: begin
+        str_checkname: 'baz'
+        new_localvar: 'baz'
+    localfunc: body
+      open_func
+      body: begin
+      body: parlist
+        parlist: begin
+        parlist: end
+      body: chunk
+      chunk:
+      -- STATEMENT: begin 'local' line=4
+      local_stat: local statement
+        localstat: begin
+            str_checkname: 'foo'
+            new_localvar: 'foo'
+            str_checkname: 'bar'
+            new_localvar: 'bar'
+        localstat: end
+      -- STATEMENT: end 'local'
+      
+      -- STATEMENT: begin 'expr' line=5
+      prefixexp: <name>
+          str_checkname: 'foo'
+          singlevar(kind): 'VLOCAL'
+      expr_stat: assignment k='VLOCAL'
+      assignment: '=' -- RHS elements follows
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'bar'
+            singlevar(kind): 'VLOCAL'
+        explist1: end
+      -- STATEMENT: end 'expr'
+      
+      -- STATEMENT: begin 'expr' line=6
+      prefixexp: <name>
+          str_checkname: 'foo'
+          singlevar(kind): 'VLOCAL'
+      expr_stat: assignment k='VLOCAL'
+      assignment: '=' -- RHS elements follows
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'baz'
+            singlevar(kind): 'VUPVAL'
+        explist1: end
+      -- STATEMENT: end 'expr'
+      
+      body: end
+      close_func
+    localfunc: end
+    -- STATEMENT: end 'local'
+    
+    -- STATEMENT: begin 'expr' line=8
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VUPVAL'
+    expr_stat: assignment k='VUPVAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      prefixexp: <name>
+          str_checkname: 'bar'
+          singlevar(kind): 'VUPVAL'
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    -- STATEMENT: begin 'expr' line=9
+    prefixexp: <name>
+        str_checkname: 'foo'
+        singlevar(kind): 'VUPVAL'
+    expr_stat: assignment k='VUPVAL'
+    assignment: '=' -- RHS elements follows
+      explist1: begin
+      expr:
+      prefixexp: <name>
+          str_checkname: 'baz'
+          singlevar(kind): 'VLOCAL'
+      explist1: end
+    -- STATEMENT: end 'expr'
+    
+    body: end
+    close_func
+  localfunc: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'expr' line=11
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VLOCAL'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    prefixexp: <name>
+        str_checkname: 'bar'
+        singlevar(kind): 'VLOCAL'
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  -- STATEMENT: begin 'expr' line=12
+  prefixexp: <name>
+      str_checkname: 'foo'
+      singlevar(kind): 'VLOCAL'
+  expr_stat: assignment k='VLOCAL'
+  assignment: '=' -- RHS elements follows
+    explist1: begin
+    expr:
+    prefixexp: <name>
+        str_checkname: 'baz'
+        singlevar(kind): 'VGLOBAL'
+    explist1: end
+  -- STATEMENT: end 'expr'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_26.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_26.lua
new file mode 100644
index 0000000..bfa3920
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_26.lua
@@ -0,0 +1,53 @@
+-- START OF SOURCE --
+  function foo:bar()
+    print(self)
+  end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'function' line=1
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    funcname: -- ':' field
+      field: operator=:
+        checkname:
+        str_checkname: 'bar'
+        codestring: "bar"
+    funcname: end
+  function_stat: body needself='true'
+    open_func
+    body: begin
+        new_localvar: 'self'
+    body: parlist
+      parlist: begin
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'expr' line=2
+    prefixexp: <name>
+        str_checkname: 'print'
+        singlevar(kind): 'VGLOBAL'
+    primaryexp: ( funcargs
+      funcargs: begin '('
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'self'
+            singlevar(kind): 'VLOCAL'
+        explist1: end
+      funcargs: end -- expr is a VCALL
+    expr_stat: function call k='VCALL'
+    -- STATEMENT: end 'expr'
+    
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_27.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_27.lua
new file mode 100644
index 0000000..77db3ef
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_27.lua
@@ -0,0 +1,48 @@
+-- START OF SOURCE --
+  function foo(...)
+    print(arg)
+  end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'function' line=1
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+      parlist: ... (dots)
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'expr' line=2
+    prefixexp: <name>
+        str_checkname: 'print'
+        singlevar(kind): 'VGLOBAL'
+    primaryexp: ( funcargs
+      funcargs: begin '('
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'arg'
+            singlevar(kind): 'VGLOBAL'
+        explist1: end
+      funcargs: end -- expr is a VCALL
+    expr_stat: function call k='VCALL'
+    -- STATEMENT: end 'expr'
+    
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_28.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_28.lua
new file mode 100644
index 0000000..e4c9e21
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_28.lua
@@ -0,0 +1,79 @@
+-- START OF SOURCE --
+  local c,d
+  function foo(a,b,c)
+    print(a,c,d,e)
+  end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'local' line=1
+  local_stat: local statement
+    localstat: begin
+        str_checkname: 'c'
+        new_localvar: 'c'
+        str_checkname: 'd'
+        new_localvar: 'd'
+    localstat: end
+  -- STATEMENT: end 'local'
+  
+  -- STATEMENT: begin 'function' line=2
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'a'
+          new_localvar: 'a'
+          str_checkname: 'b'
+          new_localvar: 'b'
+          str_checkname: 'c'
+          new_localvar: 'c'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'expr' line=3
+    prefixexp: <name>
+        str_checkname: 'print'
+        singlevar(kind): 'VGLOBAL'
+    primaryexp: ( funcargs
+      funcargs: begin '('
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'a'
+            singlevar(kind): 'VLOCAL'
+        explist1: ',' -- continuation
+        expr:
+        prefixexp: <name>
+            str_checkname: 'c'
+            singlevar(kind): 'VLOCAL'
+        explist1: ',' -- continuation
+        expr:
+        prefixexp: <name>
+            str_checkname: 'd'
+            singlevar(kind): 'VUPVAL'
+        explist1: ',' -- continuation
+        expr:
+        prefixexp: <name>
+            str_checkname: 'e'
+            singlevar(kind): 'VGLOBAL'
+        explist1: end
+      funcargs: end -- expr is a VCALL
+    expr_stat: function call k='VCALL'
+    -- STATEMENT: end 'expr'
+    
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_29.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_29.lua
new file mode 100644
index 0000000..b278ba2
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_29.lua
@@ -0,0 +1,94 @@
+-- START OF SOURCE --
+  function foo(a,b)
+    local bar = function(c,d)
+      print(a,b,c,d)
+    end
+  end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'function' line=1
+  function_stat: begin
+    funcname: begin
+        str_checkname: 'foo'
+        singlevar(kind): 'VGLOBAL'
+    funcname: end
+  function_stat: body needself='false'
+    open_func
+    body: begin
+    body: parlist
+      parlist: begin
+          str_checkname: 'a'
+          new_localvar: 'a'
+          str_checkname: 'b'
+          new_localvar: 'b'
+      parlist: end
+    body: chunk
+    chunk:
+    -- STATEMENT: begin 'local' line=2
+    local_stat: local statement
+      localstat: begin
+          str_checkname: 'bar'
+          new_localvar: 'bar'
+      localstat: -- assignment
+        explist1: begin
+        expr:
+        simpleexp: function
+          open_func
+          body: begin
+          body: parlist
+            parlist: begin
+                str_checkname: 'c'
+                new_localvar: 'c'
+                str_checkname: 'd'
+                new_localvar: 'd'
+            parlist: end
+          body: chunk
+          chunk:
+          -- STATEMENT: begin 'expr' line=3
+          prefixexp: <name>
+              str_checkname: 'print'
+              singlevar(kind): 'VGLOBAL'
+          primaryexp: ( funcargs
+            funcargs: begin '('
+              explist1: begin
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'a'
+                  singlevar(kind): 'VUPVAL'
+              explist1: ',' -- continuation
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'b'
+                  singlevar(kind): 'VUPVAL'
+              explist1: ',' -- continuation
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'c'
+                  singlevar(kind): 'VLOCAL'
+              explist1: ',' -- continuation
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'd'
+                  singlevar(kind): 'VLOCAL'
+              explist1: end
+            funcargs: end -- expr is a VCALL
+          expr_stat: function call k='VCALL'
+          -- STATEMENT: end 'expr'
+          
+          body: end
+          close_func
+        explist1: end
+      localstat: end
+    -- STATEMENT: end 'local'
+    
+    body: end
+    close_func
+  function_stat: end
+  -- STATEMENT: end 'function'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_30.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_30.lua
new file mode 100644
index 0000000..3807d14
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_30.lua
@@ -0,0 +1,119 @@
+-- START OF SOURCE --
+  for i = 1,10 do
+    print(i)
+  end
+  for i = 1,10,-2 do
+    print(i)
+  end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'for' line=1
+  for_stat: begin
+    enterblock(isbreakable=true)
+        str_checkname: 'i'
+    for_stat: numerical loop
+        new_localvar: '(for index)'
+        new_localvar: '(for limit)'
+        new_localvar: '(for step)'
+        new_localvar: 'i'
+      fornum: begin
+      fornum: index start
+        exp1: begin
+        expr:
+        simpleexp: <number>=1
+        exp1: end
+      fornum: index stop
+        exp1: begin
+        expr:
+        simpleexp: <number>=10
+        exp1: end
+      fornum: body
+        enterblock(isbreakable=false)
+        block: begin
+          enterblock(isbreakable=false)
+          chunk:
+          -- STATEMENT: begin 'expr' line=2
+          prefixexp: <name>
+              str_checkname: 'print'
+              singlevar(kind): 'VGLOBAL'
+          primaryexp: ( funcargs
+            funcargs: begin '('
+              explist1: begin
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'i'
+                  singlevar(kind): 'VLOCAL'
+              explist1: end
+            funcargs: end -- expr is a VCALL
+          expr_stat: function call k='VCALL'
+          -- STATEMENT: end 'expr'
+          
+          leaveblock
+        block: end
+        leaveblock
+      fornum: end
+    leaveblock
+  for_stat: end
+  -- STATEMENT: end 'for'
+  
+  -- STATEMENT: begin 'for' line=4
+  for_stat: begin
+    enterblock(isbreakable=true)
+        str_checkname: 'i'
+    for_stat: numerical loop
+        new_localvar: '(for index)'
+        new_localvar: '(for limit)'
+        new_localvar: '(for step)'
+        new_localvar: 'i'
+      fornum: begin
+      fornum: index start
+        exp1: begin
+        expr:
+        simpleexp: <number>=1
+        exp1: end
+      fornum: index stop
+        exp1: begin
+        expr:
+        simpleexp: <number>=10
+        exp1: end
+      fornum: index step
+        exp1: begin
+        expr:
+          subexpr: uop='-'
+        simpleexp: <number>=2
+        exp1: end
+      fornum: body
+        enterblock(isbreakable=false)
+        block: begin
+          enterblock(isbreakable=false)
+          chunk:
+          -- STATEMENT: begin 'expr' line=5
+          prefixexp: <name>
+              str_checkname: 'print'
+              singlevar(kind): 'VGLOBAL'
+          primaryexp: ( funcargs
+            funcargs: begin '('
+              explist1: begin
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'i'
+                  singlevar(kind): 'VLOCAL'
+              explist1: end
+            funcargs: end -- expr is a VCALL
+          expr_stat: function call k='VCALL'
+          -- STATEMENT: end 'expr'
+          
+          leaveblock
+        block: end
+        leaveblock
+      fornum: end
+    leaveblock
+  for_stat: end
+  -- STATEMENT: end 'for'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_31.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_31.lua
new file mode 100644
index 0000000..0d0a602
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/parser_log/sample_31.lua
@@ -0,0 +1,127 @@
+-- START OF SOURCE --
+  for foo in bar() do
+    print(foo)
+  end
+  for foo,bar,baz in spring() do
+    print(foo,bar,baz)
+  end
+-- END OF SOURCE --
+
+-- TOP: begin
+  open_func
+  
+  chunk:
+  -- STATEMENT: begin 'for' line=1
+  for_stat: begin
+    enterblock(isbreakable=true)
+        str_checkname: 'foo'
+    for_stat: list-based loop
+      forlist: begin
+          new_localvar: '(for generator)'
+          new_localvar: '(for state)'
+          new_localvar: '(for control)'
+          new_localvar: 'foo'
+      forlist: explist1
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'bar'
+            singlevar(kind): 'VGLOBAL'
+        primaryexp: ( funcargs
+          funcargs: begin '('
+          funcargs: end -- expr is a VCALL
+        explist1: end
+      forlist: body
+        enterblock(isbreakable=false)
+        block: begin
+          enterblock(isbreakable=false)
+          chunk:
+          -- STATEMENT: begin 'expr' line=2
+          prefixexp: <name>
+              str_checkname: 'print'
+              singlevar(kind): 'VGLOBAL'
+          primaryexp: ( funcargs
+            funcargs: begin '('
+              explist1: begin
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'foo'
+                  singlevar(kind): 'VLOCAL'
+              explist1: end
+            funcargs: end -- expr is a VCALL
+          expr_stat: function call k='VCALL'
+          -- STATEMENT: end 'expr'
+          
+          leaveblock
+        block: end
+        leaveblock
+      forlist: end
+    leaveblock
+  for_stat: end
+  -- STATEMENT: end 'for'
+  
+  -- STATEMENT: begin 'for' line=4
+  for_stat: begin
+    enterblock(isbreakable=true)
+        str_checkname: 'foo'
+    for_stat: list-based loop
+      forlist: begin
+          new_localvar: '(for generator)'
+          new_localvar: '(for state)'
+          new_localvar: '(for control)'
+          new_localvar: 'foo'
+          str_checkname: 'bar'
+          new_localvar: 'bar'
+          str_checkname: 'baz'
+          new_localvar: 'baz'
+      forlist: explist1
+        explist1: begin
+        expr:
+        prefixexp: <name>
+            str_checkname: 'spring'
+            singlevar(kind): 'VGLOBAL'
+        primaryexp: ( funcargs
+          funcargs: begin '('
+          funcargs: end -- expr is a VCALL
+        explist1: end
+      forlist: body
+        enterblock(isbreakable=false)
+        block: begin
+          enterblock(isbreakable=false)
+          chunk:
+          -- STATEMENT: begin 'expr' line=5
+          prefixexp: <name>
+              str_checkname: 'print'
+              singlevar(kind): 'VGLOBAL'
+          primaryexp: ( funcargs
+            funcargs: begin '('
+              explist1: begin
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'foo'
+                  singlevar(kind): 'VLOCAL'
+              explist1: ',' -- continuation
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'bar'
+                  singlevar(kind): 'VLOCAL'
+              explist1: ',' -- continuation
+              expr:
+              prefixexp: <name>
+                  str_checkname: 'baz'
+                  singlevar(kind): 'VLOCAL'
+              explist1: end
+            funcargs: end -- expr is a VCALL
+          expr_stat: function call k='VCALL'
+          -- STATEMENT: end 'expr'
+          
+          leaveblock
+        block: end
+        leaveblock
+      forlist: end
+    leaveblock
+  for_stat: end
+  -- STATEMENT: end 'for'
+  
+  close_func
+-- TOP: end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/test_llex_mk2.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/test_llex_mk2.lua
new file mode 100644
index 0000000..e9ad45f
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/test_llex_mk2.lua
@@ -0,0 +1,566 @@
+--[[--------------------------------------------------------------------
+
+  test_llex_mk2.lua
+  Test for llex_mk2.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2008 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- if BRIEF is not set to false, auto-test will silently succeed
+------------------------------------------------------------------------
+BRIEF = true  -- if set to true, messages are less verbose
+
+package.path = "../?.lua;"..package.path
+local llex = require "llex_mk2"
+
+------------------------------------------------------------------------
+-- simple manual tests
+------------------------------------------------------------------------
+
+--[[
+local function dump(z)
+  llex.init(z)
+  while true do
+    local token, seminfo = llex.llex()
+    if token == "<name>" then
+      seminfo = " "..seminfo
+    elseif token == "<number>" then
+      seminfo = " "..seminfo
+    elseif token == "<string>" then
+      seminfo = " '"..seminfo.."'"
+    else
+      seminfo = ""
+    end
+    io.stdout:write(token..seminfo.."\n")
+    if token == "<eof>" then break end
+  end
+end
+
+dump("local c = luaZ:zgetc(z)")
+os.exit()
+--]]
+
+------------------------------------------------------------------------
+-- auto-testing of simple test cases to validate lexer behaviour:
+-- * NOTE coverage has not been checked; not comprehensive
+-- * only test cases with non-empty comments are processed
+-- * if no result, then the output is displayed for manual decision
+--   (output may be used to set expected success or fail text)
+-- * cases expected to be successful may be a partial match
+-- * cases expected to fail may also be a partial match
+------------------------------------------------------------------------
+
+-- [=====[
+local function auto_test()
+  local PASS, FAIL = true, false
+  ------------------------------------------------------------------
+  -- table of test cases
+  ------------------------------------------------------------------
+  local test_cases =
+  {
+    -------------------------------------------------------------
+  --{ "comment",  -- comment about the test
+  --  "chunk",    -- chunk to test
+  --  PASS,       -- PASS or FAIL outcome
+  --  "output",   -- output to compare against
+  --},
+    -------------------------------------------------------------
+    { "empty chunk string, test EOS",
+      "",
+      PASS, "1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "line number counting",
+      "\n\n\r\n",
+      PASS, "4 <eof>",
+    },
+    -------------------------------------------------------------
+    { "various whitespaces",
+      "  \n\t\t\n  \t  \t \n\n",
+      PASS, "5 <eof>",
+    },
+    -------------------------------------------------------------
+    { "short comment ending in EOS",
+      "-- moo moo",
+      PASS, "1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "short comment ending in newline",
+      "-- moo moo\n",
+      PASS, "2 <eof>",
+    },
+    -------------------------------------------------------------
+    { "several lines of short comments",
+      "--moo\n-- moo moo\n\n--\tmoo\n",
+      PASS, "5 <eof>",
+    },
+    -------------------------------------------------------------
+    { "basic block comment 1",
+      "--[[bovine]]",
+      PASS, "1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "basic block comment 2",
+      "--[=[bovine]=]",
+      PASS, "1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "basic block comment 3",
+      "--[====[-[[bovine]]-]====]",
+      PASS, "1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 1",
+      "--[[bovine",
+      FAIL, ":1: unfinished long comment",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 2",
+      "--[==[bovine",
+      FAIL, ":1: unfinished long comment",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 3",
+      "--[[bovine]",
+      FAIL, ":1: unfinished long comment",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 4",
+      "--[[bovine\nmoo moo\nwoof",
+      FAIL, ":3: unfinished long comment",
+    },
+    -------------------------------------------------------------
+    { "basic long string 1",
+      "\n[[bovine]]\n",
+      PASS, "2 <string> = bovine\n3 <eof>",
+    },
+    -------------------------------------------------------------
+    { "basic long string 2",
+      "\n[=[bovine]=]\n",
+      PASS, "2 <string> = bovine\n3 <eof>",
+    },
+    -------------------------------------------------------------
+    { "first newline consumed in long string",
+      "[[\nmoo]]",
+      PASS, "2 <string> = moo\n2 <eof>",
+    },
+    -------------------------------------------------------------
+    { "multiline long string 1",
+      "[[moo\nmoo moo\n]]",
+      PASS, "3 <string> = moo\nmoo moo\n\n3 <eof>",
+    },
+    -------------------------------------------------------------
+    { "multiline long string 2",
+      "[===[moo\n[=[moo moo]=]\n]===]",
+      PASS, "3 <string> = moo\n[=[moo moo]=]\n\n3 <eof>",
+    },
+    -------------------------------------------------------------
+    { "unterminated long string 1",
+      "\n[[\nbovine",
+      FAIL, ":3: unfinished long string",
+    },
+    -------------------------------------------------------------
+    { "unterminated long string 2",
+      "[[bovine]",
+      FAIL, ":1: unfinished long string",
+    },
+    -------------------------------------------------------------
+    { "unterminated long string 2",
+      "[==[bovine]==",
+      FAIL, ":1: unfinished long string",
+    },
+    -------------------------------------------------------------
+    { "complex long string 1",
+      "[=[moo[[moo]]moo]=]",
+      PASS, "moo[[moo]]moo",
+    },
+    -------------------------------------------------------------
+    { "complex long string 2",
+      "[=[moo[[moo[[[[]]]]moo]]moo]=]",
+      PASS, "moo[[moo[[[[]]]]moo]]moo",
+    },
+    -------------------------------------------------------------
+    { "complex long string 3",
+      "[=[[[[[]]]][[[[]]]]]=]",
+      PASS, "[[[[]]]][[[[]]]]",
+    },
+    -------------------------------------------------------------
+    -- NOTE: this native lexer does not support compatible long
+    -- strings (LUA_COMPAT_LSTR)
+    -------------------------------------------------------------
+  --{ "deprecated long string 1",
+  --  "[[moo[[moo]]moo]]",
+  --  FAIL, ":1: nesting of [[...]] is deprecated near '['",
+  --},
+  ---------------------------------------------------------------
+  --{ "deprecated long string 2",
+  --  "[[[[ \n",
+  --  FAIL, ":1: nesting of [[...]] is deprecated near '['",
+  --},
+  ---------------------------------------------------------------
+  --{ "deprecated long string 3",
+  --  "[[moo[[moo[[[[]]]]moo]]moo]]",
+  --  FAIL, ":1: nesting of [[...]] is deprecated near '['",
+  --},
+  ---------------------------------------------------------------
+  --{ "deprecated long string 4",
+  --  "[[[[[[]]]][[[[]]]]]]",
+  --  FAIL, ":1: nesting of [[...]] is deprecated near '['",
+  --},
+    -------------------------------------------------------------
+    { "brackets in long strings 1",
+      "[[moo[moo]]",
+      PASS, "moo[moo",
+    },
+    -------------------------------------------------------------
+    { "brackets in long strings 2",
+      "[=[moo[[moo]moo]]moo]=]",
+      PASS, "moo[[moo]moo]]moo",
+    },
+    -------------------------------------------------------------
+    { "unprocessed escapes in long strings",
+      [[ [=[\a\b\f\n\r\t\v\123]=] ]],
+      PASS, [[\a\b\f\n\r\t\v\123]],
+    },
+    -------------------------------------------------------------
+    { "unbalanced long string",
+      "[[moo]]moo]]",
+      PASS, "1 <string> = moo\n1 <name> = moo\n1 CHAR = ']'\n1 CHAR = ']'\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 1",
+      "and break do else",
+      PASS, "1 and\n1 break\n1 do\n1 else\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 2",
+      "elseif end false for",
+      PASS, "1 elseif\n1 end\n1 false\n1 for\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 3",
+      "function if in local nil",
+      PASS, "1 function\n1 if\n1 in\n1 local\n1 nil\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 4",
+      "not or repeat return",
+      PASS, "1 not\n1 or\n1 repeat\n1 return\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "keywords 5",
+      "then true until while",
+      PASS, "1 then\n1 true\n1 until\n1 while\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "concat and dots",
+      ".. ...",
+      PASS, "1 ..\n1 ...\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    -- NOTE: in Lua 5.1.x, shbang handling is no longer performed
+    -- in the lexer; it is now done in lauxlib.c (luaL_loadfile)
+    -- so the following cannot be performed by the lexer...
+    -------------------------------------------------------------
+  --{ "shbang handling 1",
+  --  "#blahblah",
+  --  PASS, "1 <eof>",
+  --},
+    -------------------------------------------------------------
+  --{ "shbang handling 2",
+  --  "#blahblah\nmoo moo\n",
+  --  PASS, "2 <name> = moo\n2 <name> = moo\n3 <eof>",
+  --},
+    -------------------------------------------------------------
+    { "empty string",
+      [['']],
+      PASS, "1 <string> = \n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "single-quoted string",
+      [['bovine']],
+      PASS, "1 <string> = bovine\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "double-quoted string",
+      [["bovine"]],
+      PASS, "1 <string> = bovine\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "unterminated string 1",
+      [['moo ]],
+      FAIL, ":1: unfinished string",
+    },
+    -------------------------------------------------------------
+    { "unterminated string 2",
+      [["moo \n]],
+      FAIL, ":1: unfinished string",
+    },
+    -------------------------------------------------------------
+    { "escaped newline in string, line number counted",
+      "\"moo\\\nmoo\\\nmoo\"",
+      PASS, "3 <string> = moo\nmoo\nmoo\n3 <eof>",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 1",
+      [["moo\amoo"]],
+      PASS, "1 <string> = moo\amoo",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 2",
+      [["moo\bmoo"]],
+      PASS, "1 <string> = moo\bmoo",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 3",
+      [["moo\f\n\r\t\vmoo"]],
+      PASS, "1 <string> = moo\f\n\r\t\vmoo",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 4",
+      [["\\ \" \' \? \[ \]"]],
+      PASS, "1 <string> = \\ \" \' \? \[ \]",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 5",
+      [["\z \k \: \;"]],
+      PASS, "1 <string> = z k : ;",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 6",
+      [["\8 \65 \160 \180K \097097"]],
+      PASS, "1 <string> = \8 \65 \160 \180K \097097\n",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 7",
+      [["\666"]],
+      FAIL, ":1: escape sequence too large",
+    },
+    -------------------------------------------------------------
+    { "simple numbers",
+      "123 123+",
+      PASS, "1 <number> = 123\n1 <number> = 123\n1 CHAR = '+'\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "longer numbers",
+      "1234567890 12345678901234567890",
+      PASS, "1 <number> = 1234567890\n1 <number> = 1.2345678901235e+19\n",
+    },
+    -------------------------------------------------------------
+    { "fractional numbers",
+      ".123 .12345678901234567890",
+      PASS, "1 <number> = 0.123\n1 <number> = 0.12345678901235\n",
+    },
+    -------------------------------------------------------------
+    { "more numbers with decimal points",
+      "12345.67890",
+      PASS, "1 <number> = 12345.6789\n",
+    },
+    -------------------------------------------------------------
+    { "malformed number with decimal points",
+      "1.1.",
+      FAIL, ":1: malformed number",
+    },
+    -------------------------------------------------------------
+    { "double decimal points",
+      ".1.1",
+      FAIL, ":1: malformed number",
+    },
+    -------------------------------------------------------------
+    { "double dots within numbers",
+      "1..1",
+      FAIL, ":1: malformed number",
+    },
+    -------------------------------------------------------------
+    { "incomplete exponential numbers",
+      "123e",
+      FAIL, ":1: malformed number",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 1",
+      "1234e5 1234e5.",
+      PASS, "1 <number> = 123400000\n1 <number> = 123400000\n1 CHAR = '.'",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 2",
+      "1234e56 1.23e123",
+      PASS, "1 <number> = 1.234e+59\n1 <number> = 1.23e+123\n",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 3",
+      "12.34e+",
+      FAIL, ":1: malformed number",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 4",
+      "12.34e+5 123.4e-5 1234.E+5",
+      PASS, "1 <number> = 1234000\n1 <number> = 0.001234\n1 <number> = 123400000\n",
+    },
+    -------------------------------------------------------------
+    { "hexadecimal numbers",
+      "0x00FF 0X1234 0xDEADBEEF",
+      PASS, "1 <number> = 255\n1 <number> = 4660\n1 <number> = 3735928559\n",
+    },
+    -------------------------------------------------------------
+    { "invalid hexadecimal numbers 1",
+      "0xFOO",
+      FAIL, ":1: malformed number",
+    },
+    -------------------------------------------------------------
+    { "invalid hexadecimal numbers 2",
+      "0.BAR",
+      FAIL, ":1: malformed number",
+    },
+    -------------------------------------------------------------
+    { "invalid hexadecimal numbers 3",
+      "0BAZ",
+      FAIL, ":1: malformed number",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 1",
+      "= > < ~ #",
+      PASS, "1 CHAR = '='\n1 CHAR = '>'\n1 CHAR = '<'\n1 CHAR = '~'\n1 CHAR = '#'\n",
+    },
+    -------------------------------------------------------------
+    { "double character symbols",
+      "== >= <= ~=",
+      PASS, "1 ==\n1 >=\n1 <=\n1 ~=\n",
+    },
+    -------------------------------------------------------------
+    { "simple identifiers",
+      "abc ABC",
+      PASS, "1 <name> = abc\n1 <name> = ABC\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "more identifiers",
+      "_abc _ABC",
+      PASS, "1 <name> = _abc\n1 <name> = _ABC\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    { "still more identifiers",
+      "_aB_ _123",
+      PASS, "1 <name> = _aB_\n1 <name> = _123\n1 <eof>",
+    },
+    -------------------------------------------------------------
+    -- NOTE: in Lua 5.1.x, this test is no longer performed
+    -------------------------------------------------------------
+  --{ "invalid control character",
+  --  "\4",
+  --  FAIL, ":1: invalid control char near 'char(4)'",
+  --},
+    -------------------------------------------------------------
+    { "single character symbols 2",
+      "` ! @ $ %",
+      PASS, "1 CHAR = '`'\n1 CHAR = '!'\n1 CHAR = '@'\n1 CHAR = '$'\n1 CHAR = '%'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 3",
+      "^ & * ( )",
+      PASS, "1 CHAR = '^'\n1 CHAR = '&'\n1 CHAR = '*'\n1 CHAR = '('\n1 CHAR = ')'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 4",
+      "_ - + \\ |",
+      PASS, "1 <name> = _\n1 CHAR = '-'\n1 CHAR = '+'\n1 CHAR = '\\'\n1 CHAR = '|'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 5",
+      "{ } [ ] :",
+      PASS, "1 CHAR = '{'\n1 CHAR = '}'\n1 CHAR = '['\n1 CHAR = ']'\n1 CHAR = ':'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 6",
+      "; , . / ?",
+      PASS, "1 CHAR = ';'\n1 CHAR = ','\n1 CHAR = '.'\n1 CHAR = '/'\n1 CHAR = '?'\n",
+    },
+    -------------------------------------------------------------
+  }
+  ------------------------------------------------------------------
+  -- perform a test case
+  ------------------------------------------------------------------
+  function do_test_case(count, test_case)
+    if comment == "" then return end  -- skip empty entries
+    local comment, chunk, outcome, matcher = unpack(test_case)
+    local result = PASS
+    local output = ""
+    -- initialize lexer
+    llex.init(chunk, "=test")
+    -- lexer test loop
+    repeat
+      -- protected call
+      local status, token, seminfo = pcall(llex.llex)
+      output = output..llex.ln.." "
+      if status then
+        -- successful call
+        if #token > 1 then
+          if token == "<name>"
+             or token == "<number>"
+             or token == "<string>" then
+            token = token.." = "..seminfo
+          end
+        elseif string.byte(token) >= 32 then  -- displayable chars
+          token = "CHAR = '"..token.."'"
+        else  -- control characters
+          token = "CHAR = (".. string.byte(token)..")"
+        end
+        output = output..token.."\n"
+      else
+        -- failed call
+        output = output..token  -- token is the error message
+        result = FAIL
+        break
+      end
+    until token == "<eof>"
+    -- decision making and reporting
+    local head = "Test "..count..": "..comment
+    if matcher == "" then
+      -- nothing to check against, display for manual check
+      print(head.."\nMANUAL please check manually"..
+            "\n--chunk---------------------------------\n"..chunk..
+            "\n--actual--------------------------------\n"..output..
+            "\n\n")
+      return
+    else
+      if outcome == PASS then
+        -- success expected, may be a partial match
+        if string.find(output, matcher, 1, 1) and result == PASS then
+          if not BRIEF then print(head.."\nOK expected success\n") end
+          return
+        end
+      else
+        -- failure expected, may be a partial match
+        if string.find(output, matcher, 1, 1) and result == FAIL then
+          if not BRIEF then print(head.."\nOK expected failure\n") end
+          return
+        end
+      end
+      -- failed because of unmatched string or boolean result
+      local function passfail(status)
+        if status == PASS then return "PASS" else return "FAIL" end
+      end
+      print(head.." *FAILED*"..
+            "\noutcome="..passfail(outcome)..
+            "\nactual= "..passfail(result)..
+            "\n--chunk---------------------------------\n"..chunk..
+            "\n--expected------------------------------\n"..matcher..
+            "\n--actual--------------------------------\n"..output..
+            "\n\n")
+    end
+  end
+  ------------------------------------------------------------------
+  -- perform auto testing
+  ------------------------------------------------------------------
+  for i,test_case in ipairs(test_cases) do
+    do_test_case(i, test_case)
+  end
+end
+
+auto_test()
+--]=====]
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/test_lparser_mk2.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/test_lparser_mk2.lua
new file mode 100644
index 0000000..11f2827
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/test_lparser_mk2.lua
@@ -0,0 +1,329 @@
+--[[--------------------------------------------------------------------
+
+  test_lparser_mk2.lua
+  Test for lparser_mk2.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2008 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- test the whole kaboodle
+------------------------------------------------------------------------
+
+package.path = "../?.lua;"..package.path
+local llex = require "llex_mk2"
+local lparser = require "lparser_mk2"
+
+------------------------------------------------------------------------
+-- dump contents of log table
+------------------------------------------------------------------------
+
+local function dump_log(fs)
+  local log = fs.log
+  for i = 1, #log do
+    print(log[i])
+  end
+end
+
+------------------------------------------------------------------------
+-- try 1
+------------------------------------------------------------------------
+
+--[=[
+llex.init("local a = 1", "=string")
+lparser.init(llex)
+-- nothing is returned, so hope there is an error if problem occurs
+local fs = lparser.parser()
+dump_log(fs)
+--]=]
+
+------------------------------------------------------------------------
+-- try 2
+------------------------------------------------------------------------
+
+-- a slightly larger sample
+--[=[
+llex.init([[
+local a = 47
+local b = "hello, world!"
+print(a, b)
+]], "@sample.lua")
+lparser.init(llex)
+-- nothing is returned, so hope there is an error if problem occurs
+local fs = lparser.parser()
+dump_log(fs)
+--]=]
+
+------------------------------------------------------------------------
+-- automatic dumper of output log data
+------------------------------------------------------------------------
+
+local test_case = {
+-- 1 attempts to exercise most parts, extent of coverage not known
+[[
+]],
+-- 2
+[[
+-- foobar
+]],
+-- 3
+[[
+do
+end
+]],
+-- 4
+[[
+do end
+do end
+]],
+-- 5
+[[
+foo()
+foo{}
+foo""
+foo:bar()
+foo=false
+foo.bar=true
+foo[true]=nil
+foo,bar=1,"a"
+]],
+-- 6
+[[
+foo=true
+foo=false
+foo=nil
+foo=1.23e45
+foo=-1
+foo=(0)
+foo=1+2
+foo=1+2*3-4/5
+]],
+-- 7
+[[
+if foo then foo=1 end
+if foo then foo=1 else foo=0 end
+if foo then foo=1 elseif not foo then foo=0 end
+]],
+-- 8
+[[
+do return end
+do return 123 end
+do return "foo","bar" end
+]],
+-- 9
+[[
+while true do foo=not foo end
+while foo~=42 do foo=foo-1 end
+while true do break end
+]],
+-- 10
+[[
+repeat foo=foo.."bar" until false
+repeat foo=foo/2 until foo<1
+repeat break until false
+]],
+-- 11
+[[
+for i=1,10 do foo=i end
+for i=1,10,2 do break end
+for i in foo do bar=0 end
+for i,j in foo,bar do baz=0 end
+]],
+-- 12
+[[
+local foo
+local foo,bar,baz
+local foo,bar="foo","bar"
+]],
+-- 13
+[[
+local function foo() return end
+local function foo(a) return end
+local function foo(x,y,z) return end
+local function foo(x,...) return end
+]],
+-- 14
+[[
+function foo() return end
+function foo(a) return end
+function foo(x,y,z) return end
+function foo(x,...) return end
+]],
+-- 15
+[[
+function foo.bar(p) return end
+function foo.bar.baz(p) return end
+function foo:bar(p) return end
+function foo.bar.baz(p) return end
+]],
+-- 16
+[[
+foo = function() return end
+foo = function(x,y) return end
+foo = function(...) return end
+foo = function(...) local bar = ... return end
+]],
+-- 17
+[[
+foo = {}
+foo = { 1,2,3; "foo"; }
+foo = { bar=77, baz=88, }
+foo = { ["bar"]=77, ["baz"]=88, }
+]],
+-- 18 simple tests for variable management follows
+[[
+  print(a)
+]],
+-- 19
+[[
+  local a
+  print(a)
+]],
+-- 20
+[[
+  do
+    local a
+    print(a)
+  end
+  print(a)
+]],
+-- 21
+[[
+  local a,b,c
+  do
+    local b
+    print(b)
+  end
+  print(b)
+]],
+-- 22
+[[
+  local function foo() end
+  bar = foo
+]],
+-- 23
+[[
+  do
+    local function foo() end
+    bar = foo
+  end
+  baz = foo
+]],
+-- 24
+[[
+  local foo
+  local function bar()
+    baz = nil
+    foo = bar()
+  end
+  foo = bar
+]],
+-- 25
+[[
+  local foo
+  local function bar()
+    local function baz()
+      local foo, bar
+      foo = bar
+      foo = baz
+    end
+    foo = bar
+    foo = baz
+  end
+  foo = bar
+  foo = baz
+]],
+-- 26
+[[
+  function foo:bar()
+    print(self)
+  end
+]],
+-- 27
+[[
+  function foo(...)
+    print(arg)
+  end
+]],
+-- 28
+[[
+  local c,d
+  function foo(a,b,c)
+    print(a,c,d,e)
+  end
+]],
+-- 29
+[[
+  function foo(a,b)
+    local bar = function(c,d)
+      print(a,b,c,d)
+    end
+  end
+]],
+-- 30
+[[
+  for i = 1,10 do
+    print(i)
+  end
+  for i = 1,10,-2 do
+    print(i)
+  end
+]],
+-- 31
+[[
+  for foo in bar() do
+    print(foo)
+  end
+  for foo,bar,baz in spring() do
+    print(foo,bar,baz)
+  end
+]],
+}
+
+-- helps to skip old stuff during development of snippets
+local do_beg, do_end = 1, #test_case
+
+-- loop for all example snippets
+for i = do_beg, do_end do
+  local fname = "parser_log/sample_"..string.format("%02d", i)..".lua"
+  local src = test_case[i]
+  local OUTF = io.open(fname, "wb")
+  if not OUTF then error("failed to write to file '"..fname.."'") end
+  -- write out actual source for comparison
+  OUTF:write(
+    "-- START OF SOURCE --\n"..
+    src..
+    "-- END OF SOURCE --\n"..
+    "\n"
+  )
+  -- attempt to parse
+  llex.init(src, "=string")
+  lparser.init(llex)
+  local fs = lparser.parser()
+  -- grab logged messages and write
+  local log = fs.log
+  local indent = 0
+  for i = 1, #log do
+    local ln = log[i]
+    -- handle indentation
+    local tag = string.sub(ln, 1, 2)
+    if tag == ">>" or tag == "<<" then
+      ln = string.sub(ln, 4)
+    end
+    if tag == ">>" then
+      indent = indent + 1
+    end
+    OUTF:write(string.rep("  ", indent)..ln.."\n")
+    if tag == "<<" then
+      indent = indent - 1
+    end
+  end
+  -- we're done
+  OUTF:close()
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/test_lparser_mk2_2.lua b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/test_lparser_mk2_2.lua
new file mode 100644
index 0000000..c135a8c
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/nat-5.1.3/test/test_lparser_mk2_2.lua
@@ -0,0 +1,159 @@
+--[[--------------------------------------------------------------------
+
+  test_lparser_mk2_2.lua
+  Test for lparser_mk2.lua, using the test case file
+  This file is part of Yueliang.
+
+  Copyright (c) 2006-2008 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * unlike the equivalent in the orig-5.1.3/ directory, this version
+--   tests only parsing, lparser_mk3 cannot generate binary chunks
+-- * the test cases are in the test_lua directory (test_parser-5.1.lua)
+----------------------------------------------------------------------]]
+
+-- * true if you want an output of all failure cases in native Lua,
+--   for checking whether test cases fail where you intend them to
+local DEBUG_FAILS = false
+
+------------------------------------------------------------------------
+-- test the whole kaboodle
+------------------------------------------------------------------------
+
+package.path = "../?.lua;"..package.path
+local llex = require "llex_mk2"
+local lparser = require "lparser_mk2"
+
+------------------------------------------------------------------------
+-- load test cases
+------------------------------------------------------------------------
+
+dofile("../../test_lua/test_parser-5.1.lua")
+
+local test, expect, heading = {}, {}, {}
+local total, total_pass, total_fail = 0, 0, 0
+
+for ln in string.gfind(tests_source, "([^\n]*)\n") do
+  if string.find(ln, "^%s*%-%-") then
+    -- comment, ignore
+  else
+    local m, _, head = string.find(ln, "^%s*(TESTS:%s*.*)$")
+    if m then
+      heading[total + 1] = head         -- informational heading
+    else
+      total = total + 1
+      local n, _, flag = string.find(ln, "%s*%-%-%s*FAIL%s*$")
+      if n then                         -- FAIL test case
+        ln = string.sub(ln, 1, n - 1)   -- remove comment
+        expect[total] = "FAIL"
+        total_fail = total_fail + 1
+      else                              -- PASS test case
+        expect[total] = "PASS"
+        total_pass = total_pass + 1
+      end--n
+      test[total] = ln
+    end--m
+  end--ln
+end--for
+
+print("Tests loaded: "..total.." (total), "
+                      ..total_pass.." (passes), "
+                      ..total_fail.." (fails)")
+
+------------------------------------------------------------------------
+-- verify test cases using native Lua
+------------------------------------------------------------------------
+
+local last_head = "TESTS: no heading yet"
+for i = 1, total do
+  local test_case, expected, head = test[i], expect[i], heading[i]
+  -- show progress
+  if head then
+    last_head = head
+    if DEBUG_FAILS then print("\n"..head.."\n") end
+  end
+  ------------------------------------------------------------------
+  -- perform test
+  local f, err = loadstring(test_case)
+  -- look at outcome
+  ------------------------------------------------------------------
+  if f then-- actual PASS
+    if expected == "FAIL" then
+      print("\nVerified as PASS but expected to FAIL"..
+            "\n-------------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      os.exit()
+    end
+  ------------------------------------------------------------------
+  else-- actual FAIL
+    if expected == "PASS" then
+      print("\nVerified as FAIL but expected to PASS"..
+            "\n-------------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      print("ERROR: "..err)
+      os.exit()
+    end
+    if DEBUG_FAILS then
+      print("TEST: "..test_case)
+      print("ERROR: "..err.."\n")
+    end
+  ------------------------------------------------------------------
+  end--f
+end--for
+
+print("Test cases verified using native Lua, no anomalies.")
+
+------------------------------------------------------------------------
+-- test using Yueliang front end
+------------------------------------------------------------------------
+
+local last_head = "TESTS: no heading yet"
+for i = 1, total do
+  local test_case, expected, head = test[i], expect[i], heading[i]
+  -- show progress
+  if head then last_head = head end
+  ------------------------------------------------------------------
+  -- perform test
+  llex.init(test_case, "=test_sample")
+  lparser.init(llex)
+
+  local status, func = pcall(lparser.parser)
+  -- look at outcome
+  ------------------------------------------------------------------
+  if status then-- actual PASS
+    if expected == "FAIL" then
+      print("\nTested as PASS but expected to FAIL"..
+            "\n-----------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      os.exit()
+    end
+  ------------------------------------------------------------------
+  else-- actual FAIL
+    if expected == "PASS" then
+      print("\nTested as FAIL but expected to PASS"..
+            "\n-----------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      os.exit()
+    else
+      io.stdout:write("-")
+    end
+  ------------------------------------------------------------------
+  end--status
+  io.stdout:write("\rTesting ["..i.."]...")
+end--for
+print(" done.")
+
+print("Test cases run on Yueliang, no anomalies.")
+
+-- end
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/README b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/README
new file mode 100644
index 0000000..e64bf50
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/README
@@ -0,0 +1,51 @@
+orig-5.0.3
+
+This is a straightforward port of the Lua 5.0.3 front end (lexical
+analyzer, parser, code generator, binary chunk dumper.)
+
+The front end files are:
+
+        lopcodes.lua    opcode definition
+        lzio.lua        input streams
+        llex.lua        lexical analyzer
+        lparser.lua     parser
+        lcode.lua       code generator
+        ldump.lua       binary chunk dumper
+
+Status: operational, passes all current tests (non-exhaustive)
+
+Major test scripts are:
+
+        test/test_llex.lua              exercises test cases
+        test/test_lparser2.lua          exercises test cases
+
+luac.lua is a clone of Lua 5.0.3's luac.lua, except that it generates a
+binary chunk using Yueliang's front end implementation.
+
+Note that performance is not a consideration. The code tries to stay
+faithful to its C roots, so that if you were to do anything using this
+codebase, backporting the changes to C will be easy. As such, this
+codebase is meant for learning or prototyping purposes.
+
+Many parameters are unused, because call arguments are retained as far
+as possible. Changes and deletions are described wherever possible, but
+documentation of changes is not comprehensive.
+
+These files will stay faithful to the equivalent C files or modules in
+Lua 5.0.3. For rewrites or new features, a new directory will be created
+and a different set of files maintained. For Lua 5.1, a new directory
+will be created.
+
+The test directory has several primitive test scripts. Much better
+testing is planned. Eventually, the codebase will be validated using
+automated tests, so that any changes that breaks the system can be
+caught easily.
+
+The tools directory has a call graph generator, showing what gets
+called. Specific modules and functions can be monitored, and some
+parameters and return values are shown. This is a demonstration of the
+flexibility and ease of manipulation of using a relatively inefficient
+global table scheme.
+
+For Lua 5.0.2, see Yueliang 0.1.3, which was the last release of Lua
+5.0.2 material.
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/lcode.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/lcode.lua
new file mode 100644
index 0000000..c18dc08
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/lcode.lua
@@ -0,0 +1,902 @@
+--[[--------------------------------------------------------------------
+
+  lcode.lua
+  Lua 5 code generator in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * one function manipulate a pointer argument with a simple data type
+--   (can't be emulated by a table, ambiguous), now returns that value:
+--   luaK:concat(fs, l1, l2)
+-- * some function parameters changed to boolean, additional code
+--   translates boolean back to 1/0 for instruction fields
+-- * Added:
+--   luaK:ttisnumber(o) (from lobject.h)
+--   luaK:nvalue(o) (from lobject.h)
+--   luaK:setnilvalue(o) (from lobject.h)
+--   luaK:setsvalue(o, x) (from lobject.h)
+--   luaK:setnvalue(o, x) (from lobject.h)
+--   luaK:sethvalue(o, x) (from lobject.h)
+----------------------------------------------------------------------]]
+
+-- requires luaP, luaX, luaY
+luaK = {}
+
+------------------------------------------------------------------------
+-- Marks the end of a patch list. It is an invalid value both as an absolute
+-- address, and as a list link (would link an element to itself).
+------------------------------------------------------------------------
+luaK.NO_JUMP = -1
+
+------------------------------------------------------------------------
+-- grep "ORDER OPR" if you change these enums
+------------------------------------------------------------------------
+luaK.BinOpr = {
+  OPR_ADD = 0, OPR_SUB = 1, OPR_MULT = 2, OPR_DIV = 3, OPR_POW = 4,
+  OPR_CONCAT = 5,
+  OPR_NE = 6, OPR_EQ = 7,
+  OPR_LT = 8, OPR_LE = 9, OPR_GT = 10, OPR_GE = 11,
+  OPR_AND = 12, OPR_OR = 13,
+  OPR_NOBINOPR = 14,
+}
+
+------------------------------------------------------------------------
+-- emulation of TObject macros (these are from lobject.h)
+-- * TObject is a table since lcode passes references around
+-- * tt member field removed, using Lua's type() instead
+------------------------------------------------------------------------
+function luaK:ttisnumber(o)
+  if o then return type(o.value) == "number" else return false end
+end
+function luaK:nvalue(o) return o.value end
+function luaK:setnilvalue(o) o.value = nil end
+function luaK:setsvalue(o, x) o.value = x end
+luaK.setnvalue = luaK.setsvalue
+luaK.sethvalue = luaK.setsvalue
+
+------------------------------------------------------------------------
+-- * binopistest appears to be unused
+-- * UnOpr is used by luaK:prefix's op argument
+------------------------------------------------------------------------
+function luaK:binopistest(op)
+  return self.BinOpr[op] >= self.BinOpr["OPR_NE"]
+end
+
+luaK.UnOpr = {
+  OPR_MINUS = 0, OPR_NOT = 1, OPR_NOUNOPR = 2
+}
+
+------------------------------------------------------------------------
+-- returns the instruction object for given e (expdesc)
+------------------------------------------------------------------------
+function luaK:getcode(fs, e)
+  return fs.f.code[e.info]
+end
+
+------------------------------------------------------------------------
+-- codes an instruction with a signed Bx (sBx) field
+------------------------------------------------------------------------
+function luaK:codeAsBx(fs, o, A, sBx)
+  return self:codeABx(fs, o, A, sBx + luaP.MAXARG_sBx)
+end
+
+------------------------------------------------------------------------
+-- there is a jump if patch lists are not identical
+-- * used in luaK:exp2reg(), luaK:exp2anyreg(), luaK:exp2val()
+------------------------------------------------------------------------
+function luaK:hasjumps(e)
+  return e.t ~= e.f
+end
+
+------------------------------------------------------------------------
+-- codes loading of nil, optimization done if consecutive locations
+-- * used only in discharge2reg()
+------------------------------------------------------------------------
+function luaK:_nil(fs, from, n)
+  if fs.pc > fs.lasttarget then  -- no jumps to current position?
+    local previous = fs.f.code[fs.pc - 1]
+    if luaP:GET_OPCODE(previous) == "OP_LOADNIL" then
+      local pfrom = luaP:GETARG_A(previous)
+      local pto = luaP:GETARG_B(previous)
+      if pfrom <= from and from <= pto + 1 then  -- can connect both?
+        if from + n - 1 > pto then
+          luaP:SETARG_B(previous, from + n - 1)
+        end
+        return
+      end
+    end
+  end
+  self:codeABC(fs, "OP_LOADNIL", from, from + n - 1, 0)  -- else no optimization
+end
+
+------------------------------------------------------------------------
+--
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaK:jump(fs)
+  local jpc = fs.jpc  -- save list of jumps to here
+  fs.jpc = self.NO_JUMP
+  local j = self:codeAsBx(fs, "OP_JMP", 0, self.NO_JUMP)
+  return self:concat(fs, j, jpc)  -- keep them on hold
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:jumponcond(), luaK:codebinop()
+------------------------------------------------------------------------
+function luaK:condjump(fs, op, A, B, C)
+  self:codeABC(fs, op, A, B, C)
+  return self:jump(fs)
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:patchlistaux(), luaK:concat()
+------------------------------------------------------------------------
+function luaK:fixjump(fs, pc, dest)
+  local jmp = fs.f.code[pc]
+  local offset = dest - (pc + 1)
+  lua_assert(dest ~= self.NO_JUMP)
+  if math.abs(offset) > luaP.MAXARG_sBx then
+    luaX:syntaxerror(fs.ls, "control structure too long")
+  end
+  luaP:SETARG_sBx(jmp, offset)
+end
+
+------------------------------------------------------------------------
+-- returns current 'pc' and marks it as a jump target (to avoid wrong
+-- optimizations with consecutive instructions not in the same basic block).
+-- * used in multiple locations
+-- * fs.lasttarget tested only by luaK:_nil() when optimizing OP_LOADNIL
+------------------------------------------------------------------------
+function luaK:getlabel(fs)
+  fs.lasttarget = fs.pc
+  return fs.pc
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:need_value(), luaK:patchlistaux(), luaK:concat()
+------------------------------------------------------------------------
+function luaK:getjump(fs, pc)
+  local offset = luaP:GETARG_sBx(fs.f.code[pc])
+  if offset == self.NO_JUMP then  -- point to itself represents end of list
+    return self.NO_JUMP  -- end of list
+  else
+    return (pc + 1) + offset  -- turn offset into absolute position
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:need_value(), luaK:patchlistaux(), luaK:invertjump()
+------------------------------------------------------------------------
+function luaK:getjumpcontrol(fs, pc)
+  local pi = fs.f.code[pc]
+  local ppi = fs.f.code[pc - 1]
+  if pc >= 1 and luaP:testOpMode(luaP:GET_OPCODE(ppi), "OpModeT") then
+    return ppi
+  else
+    return pi
+  end
+end
+
+------------------------------------------------------------------------
+-- check whether list has any jump that do not produce a value
+-- (or produce an inverted value)
+-- * used only in luaK:exp2reg()
+------------------------------------------------------------------------
+function luaK:need_value(fs, list, cond)
+  while list ~= self.NO_JUMP do
+    local i = self:getjumpcontrol(fs, list)
+    if luaP:GET_OPCODE(i) ~= "OP_TEST" or
+       luaP:GETARG_A(i) ~= luaP.NO_REG or
+       luaP:GETARG_C(i) ~= cond then
+      return true
+    end
+    list = self:getjump(fs, list)
+  end
+  return false  -- not found
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in luaK:patchlistaux()
+------------------------------------------------------------------------
+function luaK:patchtestreg(i, reg)
+  if reg == luaP.NO_REG then reg = luaP:GETARG_B(i) end
+  luaP:SETARG_A(i, reg)
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in luaK:codenot()
+------------------------------------------------------------------------
+
+function luaK:removevalues(fs, list)
+  while list ~= self.NO_JUMP do
+    local i = self:getjumpcontrol(fs, list)
+    if luaP:GET_OPCODE(i) == "OP_TEST" then
+      self:patchtestreg(i, luaP.NO_REG)
+    end
+    list = self:getjump(fs, list)
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:dischargejpc(), luaK:patchlist(), luaK:exp2reg()
+------------------------------------------------------------------------
+function luaK:patchlistaux(fs, list, vtarget, reg, dtarget)
+  while list ~= self.NO_JUMP do
+    local _next = self:getjump(fs, list)
+    local i = self:getjumpcontrol(fs, list)
+    if luaP:GET_OPCODE(i) == "OP_TEST" and luaP:GETARG_A(i) == luaP.NO_REG then
+      self:patchtestreg(i, reg)
+      self:fixjump(fs, list, vtarget)
+    else
+      self:fixjump(fs, list, dtarget)  -- jump to default target
+    end
+    list = _next
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in luaK:code()
+------------------------------------------------------------------------
+function luaK:dischargejpc(fs)
+  self:patchlistaux(fs, fs.jpc, fs.pc, luaP.NO_REG, fs.pc)
+  fs.jpc = self.NO_JUMP
+end
+
+------------------------------------------------------------------------
+--
+-- * used in (lparser) luaY:whilestat(), luaY:repeatstat(), luaY:forbody()
+------------------------------------------------------------------------
+function luaK:patchlist(fs, list, target)
+  if target == fs.pc then
+    self:patchtohere(fs, list)
+  else
+    lua_assert(target < fs.pc)
+    self:patchlistaux(fs, list, target, luaP.NO_REG, target)
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaK:patchtohere(fs, list)
+  self:getlabel(fs)
+  fs.jpc = self:concat(fs, fs.jpc, list)
+end
+
+------------------------------------------------------------------------
+-- * l1 was a pointer, now l1 is returned and callee assigns the value
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaK:concat(fs, l1, l2)
+  if l2 == self.NO_JUMP then return l1  -- unchanged
+  elseif l1 == self.NO_JUMP then
+    return l2  -- changed
+  else
+    local list = l1
+    local _next = self:getjump(fs, list)
+    while _next ~= self.NO_JUMP do  -- find last element
+      list = _next
+      _next = self:getjump(fs, list)
+    end
+    self:fixjump(fs, list, l2)
+  end
+  return l1  -- unchanged
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:reserveregs(), (lparser) luaY:forlist()
+------------------------------------------------------------------------
+function luaK:checkstack(fs, n)
+  local newstack = fs.freereg + n
+  if newstack > fs.f.maxstacksize then
+    if newstack >= luaY.MAXSTACK then
+      luaX:syntaxerror(fs.ls, "function or expression too complex")
+    end
+    fs.f.maxstacksize = newstack
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaK:reserveregs(fs, n)
+  self:checkstack(fs, n)
+  fs.freereg = fs.freereg + n
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:freeexp(), luaK:dischargevars()
+------------------------------------------------------------------------
+function luaK:freereg(fs, reg)
+  if reg >= fs.nactvar and reg < luaY.MAXSTACK then
+    fs.freereg = fs.freereg - 1
+    lua_assert(reg == fs.freereg)
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaK:freeexp(fs, e)
+  if e.k == "VNONRELOC" then
+    self:freereg(fs, e.info)
+  end
+end
+
+------------------------------------------------------------------------
+-- * luaH_get, luaH_set deleted; direct table access used instead
+-- * luaO_rawequalObj deleted in first assert
+-- * setobj2n deleted in assignment of v to f.k table
+-- * used in luaK:stringK(), luaK:numberK(), luaK:nil_constant()
+------------------------------------------------------------------------
+function luaK:addk(fs, k, v)
+  local idx = fs.h[k.value]
+  if self:ttisnumber(idx) then
+    --TODO this assert currently FAILS, probably something wrong...
+    --lua_assert(fs.f.k[self:nvalue(idx)] == v)
+    return self:nvalue(idx)
+  else  -- constant not found; create a new entry
+    local f = fs.f
+    luaY:growvector(fs.L, f.k, fs.nk, f.sizek, nil,
+                    luaP.MAXARG_Bx, "constant table overflow")
+    f.k[fs.nk] = v  -- setobj2n deleted
+    fs.h[k.value] = {}
+    self:setnvalue(fs.h[k.value], fs.nk)
+    local nk = fs.nk
+    fs.nk = fs.nk + 1
+    return nk
+  end
+end
+
+------------------------------------------------------------------------
+-- creates and sets a string object
+-- * used in (lparser) luaY:codestring(), luaY:singlevaraux()
+------------------------------------------------------------------------
+function luaK:stringK(fs, s)
+  local o = {}  -- TObject
+  self:setsvalue(o, s)
+  return self:addk(fs, o, o)
+end
+
+------------------------------------------------------------------------
+-- creates and sets a number object
+-- * used in luaK:prefix() for negative (or negation of) numbers
+-- * used in (lparser) luaY:simpleexp(), luaY:fornum()
+------------------------------------------------------------------------
+function luaK:numberK(fs, r)
+  local o = {}  -- TObject
+  self:setnvalue(o, r)
+  return self:addk(fs, o, o)
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in luaK:exp2RK()
+------------------------------------------------------------------------
+function luaK:nil_constant(fs)
+  local k, v = {}, {}  -- TObject
+  self:setnilvalue(v)
+  self:sethvalue(k, fs.h)  -- cannot use nil as key; instead use table itself
+  return self:addk(fs, k, v)
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:dischargevars()
+-- * used in (lparser) luaY:adjust_assign(), luaY:lastlistfield(),
+--   luaY:funcargs(), luaY:assignment(), luaY:exprstat(), luaY:retstat()
+------------------------------------------------------------------------
+function luaK:setcallreturns(fs, e, nresults)
+  if e.k == "VCALL" then  -- expression is an open function call?
+    luaP:SETARG_C(self:getcode(fs, e), nresults + 1)
+    if nresults == 1 then  -- 'regular' expression?
+      e.k = "VNONRELOC"
+      e.info = luaP:GETARG_A(self:getcode(fs, e))
+    end
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaK:dischargevars(fs, e)
+  local k = e.k
+  if k == "VLOCAL" then
+    e.k = "VNONRELOC"
+  elseif k == "VUPVAL" then
+    e.info = self:codeABC(fs, "OP_GETUPVAL", 0, e.info, 0)
+    e.k = "VRELOCABLE"
+  elseif k == "VGLOBAL" then
+    e.info = self:codeABx(fs, "OP_GETGLOBAL", 0, e.info)
+    e.k = "VRELOCABLE"
+  elseif k == "VINDEXED" then
+    self:freereg(fs, e.aux)
+    self:freereg(fs, e.info)
+    e.info = self:codeABC(fs, "OP_GETTABLE", 0, e.info, e.aux)
+    e.k = "VRELOCABLE"
+  elseif k == "VCALL" then
+    self:setcallreturns(fs, e, 1)
+  else
+    -- there is one value available (somewhere)
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in luaK:exp2reg()
+------------------------------------------------------------------------
+function luaK:code_label(fs, A, b, jump)
+  self:getlabel(fs)  -- those instructions may be jump targets
+  return self:codeABC(fs, "OP_LOADBOOL", A, b, jump)
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:discharge2anyreg(), luaK:exp2reg()
+------------------------------------------------------------------------
+function luaK:discharge2reg(fs, e, reg)
+  self:dischargevars(fs, e)
+  local k = e.k
+  if k == "VNIL" then
+    self:_nil(fs, reg, 1)
+  elseif k == "VFALSE" or k == "VTRUE" then
+    self:codeABC(fs, "OP_LOADBOOL", reg, (e.k == "VTRUE") and 1 or 0, 0)
+  elseif k == "VK" then
+    self:codeABx(fs, "OP_LOADK", reg, e.info)
+  elseif k == "VRELOCABLE" then
+    local pc = self:getcode(fs, e)
+    luaP:SETARG_A(pc, reg)
+  elseif k == "VNONRELOC" then
+    if reg ~= e.info then
+      self:codeABC(fs, "OP_MOVE", reg, e.info, 0)
+    end
+  else
+    lua_assert(e.k == "VVOID" or e.k == "VJMP")
+    return  -- nothing to do...
+  end
+  e.info = reg
+  e.k = "VNONRELOC"
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:jumponcond(), luaK:codenot()
+------------------------------------------------------------------------
+function luaK:discharge2anyreg(fs, e)
+  if e.k ~= "VNONRELOC" then
+    self:reserveregs(fs, 1)
+    self:discharge2reg(fs, e, fs.freereg - 1)
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:exp2nextreg(), luaK:exp2anyreg(), luaK:storevar()
+------------------------------------------------------------------------
+function luaK:exp2reg(fs, e, reg)
+  self:discharge2reg(fs, e, reg)
+  if e.k == "VJMP" then
+    e.t = self:concat(fs, e.t, e.info)  -- put this jump in 't' list
+  end
+  if self:hasjumps(e) then
+    local final  -- position after whole expression
+    local p_f = self.NO_JUMP  -- position of an eventual LOAD false
+    local p_t = self.NO_JUMP  -- position of an eventual LOAD true
+    if self:need_value(fs, e.t, 1) or self:need_value(fs, e.f, 0) then
+      local fj = self.NO_JUMP  -- first jump (over LOAD ops.)
+      if e.k ~= "VJMP" then
+        fj = self:jump(fs)
+      end
+      p_f = self:code_label(fs, reg, 0, 1)
+      p_t = self:code_label(fs, reg, 1, 0)
+      self:patchtohere(fs, fj)
+    end
+    final = self:getlabel(fs)
+    self:patchlistaux(fs, e.f, final, reg, p_f)
+    self:patchlistaux(fs, e.t, final, reg, p_t)
+  end
+  e.f, e.t = self.NO_JUMP, self.NO_JUMP
+  e.info = reg
+  e.k = "VNONRELOC"
+end
+
+------------------------------------------------------------------------
+--
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaK:exp2nextreg(fs, e)
+  self:dischargevars(fs, e)
+  self:freeexp(fs, e)
+  self:reserveregs(fs, 1)
+  self:exp2reg(fs, e, fs.freereg - 1)
+end
+
+------------------------------------------------------------------------
+--
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaK:exp2anyreg(fs, e)
+  self:dischargevars(fs, e)
+  if e.k == "VNONRELOC" then
+    if not self:hasjumps(e) then  -- exp is already in a register
+      return e.info
+    end
+    if e.info >= fs.nactvar then  -- reg. is not a local?
+      self:exp2reg(fs, e, e.info)  -- put value on it
+      return e.info
+    end
+  end
+  self:exp2nextreg(fs, e)  -- default
+  return e.info
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:exp2RK(), luaK:prefix(), luaK:posfix()
+-- * used in (lparser) luaY:index()
+------------------------------------------------------------------------
+function luaK:exp2val(fs, e)
+  if self:hasjumps(e) then
+    self:exp2anyreg(fs, e)
+  else
+    self:dischargevars(fs, e)
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaK:exp2RK(fs, e)
+  self:exp2val(fs, e)
+  local k = e.k
+  if k == "VNIL" then
+    if fs.nk + luaY.MAXSTACK <= luaP.MAXARG_C then  -- constant fit in argC?
+      e.info = self:nil_constant(fs)
+      e.k = "VK"
+      return e.info + luaY.MAXSTACK
+    end
+  elseif k == "VK" then
+    if e.info + luaY.MAXSTACK <= luaP.MAXARG_C then  -- constant fit in argC?
+      return e.info + luaY.MAXSTACK
+    end
+  end
+  -- not a constant in the right range: put it in a register
+  return self:exp2anyreg(fs, e)
+end
+
+------------------------------------------------------------------------
+--
+-- * used in (lparser) luaY:assignment(), luaY:localfunc(), luaY:funcstat()
+------------------------------------------------------------------------
+function luaK:storevar(fs, var, exp)
+  local k = var.k
+  if k == "VLOCAL" then
+    self:freeexp(fs, exp)
+    self:exp2reg(fs, exp, var.info)
+    return
+  elseif k == "VUPVAL" then
+    local e = self:exp2anyreg(fs, exp)
+    self:codeABC(fs, "OP_SETUPVAL", e, var.info, 0)
+  elseif k == "VGLOBAL" then
+    local e = self:exp2anyreg(fs, exp)
+    self:codeABx(fs, "OP_SETGLOBAL", e, var.info)
+  elseif k == "VINDEXED" then
+    local e = self:exp2RK(fs, exp)
+    self:codeABC(fs, "OP_SETTABLE", var.info, var.aux, e)
+  else
+    lua_assert(0)  -- invalid var kind to store
+  end
+  self:freeexp(fs, exp)
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in (lparser) luaY:primaryexp()
+------------------------------------------------------------------------
+function luaK:_self(fs, e, key)
+  self:exp2anyreg(fs, e)
+  self:freeexp(fs, e)
+  local func = fs.freereg
+  self:reserveregs(fs, 2)
+  self:codeABC(fs, "OP_SELF", func, e.info, self:exp2RK(fs, key))
+  self:freeexp(fs, key)
+  e.info = func
+  e.k = "VNONRELOC"
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:goiftrue(), luaK:codenot()
+------------------------------------------------------------------------
+function luaK:invertjump(fs, e)
+  local pc = self:getjumpcontrol(fs, e.info)
+  lua_assert(luaP:testOpMode(luaP:GET_OPCODE(pc), "OpModeT") and
+             luaP:GET_OPCODE(pc) ~= "OP_TEST")
+  luaP:SETARG_A(pc, (luaP:GETARG_A(pc) == 0) and 1 or 0)
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:goiftrue(), luaK:goiffalse()
+------------------------------------------------------------------------
+function luaK:jumponcond(fs, e, cond)
+  if e.k == "VRELOCABLE" then
+    local ie = self:getcode(fs, e)
+    if luaP:GET_OPCODE(ie) == "OP_NOT" then
+      fs.pc = fs.pc - 1  -- remove previous OP_NOT
+      return self:condjump(fs, "OP_TEST", luaP:GETARG_B(ie), luaP:GETARG_B(ie),
+                           cond and 0 or 1)
+    end
+    -- else go through
+  end
+  self:discharge2anyreg(fs, e)
+  self:freeexp(fs, e)
+  return self:condjump(fs, "OP_TEST", luaP.NO_REG, e.info, cond and 1 or 0)
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:infix(), (lparser) luaY:cond()
+------------------------------------------------------------------------
+function luaK:goiftrue(fs, e)
+  local pc  -- pc of last jump
+  self:dischargevars(fs, e)
+  local k = e.k
+  if k == "VK" or k == "VTRUE" then
+    pc = self.NO_JUMP  -- always true; do nothing
+  elseif k == "VFALSE" then
+    pc = self:jump(fs)  -- always jump
+  elseif k == "VJMP" then
+    self:invertjump(fs, e)
+    pc = e.info
+  else
+    pc = self:jumponcond(fs, e, false)
+  end
+  e.f = self:concat(fs, e.f, pc)  -- insert last jump in 'f' list
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:infix(), (lparser) luaY:whilestat()
+------------------------------------------------------------------------
+function luaK:goiffalse(fs, e)
+  local pc  -- pc of last jump
+  self:dischargevars(fs, e)
+  local k = e.k
+  if k == "VNIL" or k == "VFALSE"then
+    pc = self.NO_JUMP  -- always false; do nothing
+  elseif k == "VTRUE" then
+    pc = self:jump(fs)  -- always jump
+  elseif k == "VJMP" then
+    pc = e.info
+  else
+    pc = self:jumponcond(fs, e, true)
+  end
+  e.t = self:concat(fs, e.t, pc)  -- insert last jump in 't' list
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in luaK:prefix()
+------------------------------------------------------------------------
+function luaK:codenot(fs, e)
+  self:dischargevars(fs, e)
+  local k = e.k
+  if k == "VNIL" or k == "VFALSE" then
+    e.k = "VTRUE"
+  elseif k == "VK" or k == "VTRUE" then
+    e.k = "VFALSE"
+  elseif k == "VJMP" then
+    self:invertjump(fs, e)
+  elseif k == "VRELOCABLE" or k == "VNONRELOC" then
+    self:discharge2anyreg(fs, e)
+    self:freeexp(fs, e)
+    e.info = self:codeABC(fs, "OP_NOT", 0, e.info, 0)
+    e.k = "VRELOCABLE"
+  else
+    lua_assert(0)  -- cannot happen
+  end
+  -- interchange true and false lists
+  e.f, e.t = e.t, e.f
+  self:removevalues(fs, e.f)
+  self:removevalues(fs, e.t)
+end
+
+------------------------------------------------------------------------
+--
+-- * used in (lparser) luaY:field(), luaY:primaryexp()
+------------------------------------------------------------------------
+function luaK:indexed(fs, t, k)
+  t.aux = self:exp2RK(fs, k)
+  t.k = "VINDEXED"
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in (lparser) luaY:subexpr()
+------------------------------------------------------------------------
+function luaK:prefix(fs, op, e)
+  if op == "OPR_MINUS" then
+    self:exp2val(fs, e)
+    if e.k == "VK" and self:ttisnumber(fs.f.k[e.info]) then
+      e.info = self:numberK(fs, -self:nvalue(fs.f.k[e.info]))
+    else
+      self:exp2anyreg(fs, e)
+      self:freeexp(fs, e)
+      e.info = self:codeABC(fs, "OP_UNM", 0, e.info, 0)
+      e.k = "VRELOCABLE"
+    end
+  else  -- op == NOT
+    self:codenot(fs, e)
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in (lparser) luaY:subexpr()
+------------------------------------------------------------------------
+function luaK:infix(fs, op, v)
+  if op == "OPR_AND" then
+    self:goiftrue(fs, v)
+    self:patchtohere(fs, v.t)
+    v.t = self.NO_JUMP
+  elseif op == "OPR_OR" then
+    self:goiffalse(fs, v)
+    self:patchtohere(fs, v.f)
+    v.f = self.NO_JUMP
+  elseif op == "OPR_CONCAT" then
+    self:exp2nextreg(fs, v)  -- operand must be on the 'stack'
+  else
+    self:exp2RK(fs, v)
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- grep "ORDER OPR" if you change these enums
+-- * used only in luaK:posfix()
+------------------------------------------------------------------------
+luaK.arith_opc = {  -- done as a table lookup instead of a calc
+  OPR_ADD = "OP_ADD",
+  OPR_SUB = "OP_SUB",
+  OPR_MULT = "OP_MUL",
+  OPR_DIV = "OP_DIV",
+  OPR_POW = "OP_POW",
+}
+luaK.test_opc = {  -- was ops[] in the codebinop function
+  OPR_NE = "OP_EQ",
+  OPR_EQ = "OP_EQ",
+  OPR_LT = "OP_LT",
+  OPR_LE = "OP_LE",
+  OPR_GT = "OP_LT",
+  OPR_GE = "OP_LE",
+}
+function luaK:codebinop(fs, res, op, o1, o2)
+  if self.BinOpr[op] <= self.BinOpr["OPR_POW"] then  -- arithmetic operator?
+    local opc = self.arith_opc[op]  -- ORDER OP
+    res.info = self:codeABC(fs, opc, 0, o1, o2)
+    res.k = "VRELOCABLE"
+  else  -- test operator
+    local cond = true
+    if self.BinOpr[op] >= self.BinOpr["OPR_GT"] then  -- '>' or '>='?
+      -- exchange args and replace by '<' or '<='
+      o1, o2 = o2, o1  -- o1 <==> o2
+    elseif op == "OPR_NE" then
+      cond = false
+    end
+    res.info = self:condjump(fs, self.test_opc[op], cond and 1 or 0, o1, o2)
+    res.k = "VJMP"
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in (lparser) luaY:subexpr()
+------------------------------------------------------------------------
+function luaK:posfix(fs, op, e1, e2)
+  if op == "OPR_AND" then
+    lua_assert(e1.t == self.NO_JUMP)  -- list must be closed
+    self:dischargevars(fs, e2)
+    e1.f = self:concat(fs, e1.f, e2.f)
+    e1.k = e2.k; e1.info = e2.info; e1.aux = e2.aux; e1.t = e2.t
+  elseif op == "OPR_OR" then
+    lua_assert(e1.f == self.NO_JUMP)  -- list must be closed
+    self:dischargevars(fs, e2)
+    e1.t = self:concat(fs, e1.t, e2.t)
+    e1.k = e2.k; e1.info = e2.info; e1.aux = e2.aux; e1.f = e2.f
+  elseif op == "OPR_CONCAT" then
+    self:exp2val(fs, e2)
+    if e2.k == "VRELOCABLE"
+       and luaP:GET_OPCODE(self:getcode(fs, e2)) == "OP_CONCAT" then
+      lua_assert(e1.info == luaP:GETARG_B(self:getcode(fs, e2)) - 1)
+      self:freeexp(fs, e1)
+      luaP:SETARG_B(self:getcode(fs, e2), e1.info)
+      e1.k = e2.k; e1.info = e2.info
+    else
+      self:exp2nextreg(fs, e2)
+      self:freeexp(fs, e2)
+      self:freeexp(fs, e1)
+      e1.info = self:codeABC(fs, "OP_CONCAT", 0, e1.info, e2.info)
+      e1.k = "VRELOCABLE"
+    end
+  else
+    local o1 = self:exp2RK(fs, e1)
+    local o2 = self:exp2RK(fs, e2)
+    self:freeexp(fs, e2)
+    self:freeexp(fs, e1)
+    self:codebinop(fs, e1, op, o1, o2)
+  end
+end
+
+------------------------------------------------------------------------
+-- adjusts debug information for last instruction written, in order to
+-- change the line where item comes into existence
+-- * used in (lparser) luaY:funcargs(), luaY:forbody(), luaY:funcstat()
+------------------------------------------------------------------------
+function luaK:fixline(fs, line)
+  fs.f.lineinfo[fs.pc - 1] = line
+end
+
+------------------------------------------------------------------------
+-- general function to write an instruction into the instruction buffer,
+-- sets debug information too
+-- * used in luaK:codeABC(), luaK:codeABx()
+-- * called directly by (lparser) luaY:whilestat()
+------------------------------------------------------------------------
+function luaK:code(fs, i, line)
+  local f = fs.f
+  self:dischargejpc(fs)  -- 'pc' will change
+  -- put new instruction in code array
+  luaY:growvector(fs.L, f.code, fs.pc, f.sizecode, nil,
+                  luaY.MAX_INT, "code size overflow")
+  f.code[fs.pc] = i
+  -- save corresponding line information
+  luaY:growvector(fs.L, f.lineinfo, fs.pc, f.sizelineinfo, nil,
+                  luaY.MAX_INT, "code size overflow")
+  f.lineinfo[fs.pc] = line
+  local pc = fs.pc
+  fs.pc = fs.pc + 1
+  return pc
+end
+
+------------------------------------------------------------------------
+-- writes an instruction of type ABC
+-- * calls luaK:code()
+------------------------------------------------------------------------
+function luaK:codeABC(fs, o, a, b, c)
+  lua_assert(luaP:getOpMode(o) == "iABC")
+  return self:code(fs, luaP:CREATE_ABC(o, a, b, c), fs.ls.lastline)
+end
+
+------------------------------------------------------------------------
+-- writes an instruction of type ABx
+-- * calls luaK:code(), called by luaK:codeAsBx()
+------------------------------------------------------------------------
+function luaK:codeABx(fs, o, a, bc)
+  lua_assert(luaP:getOpMode(o) == "iABx" or luaP:getOpMode(o) == "iAsBx")
+  return self:code(fs, luaP:CREATE_ABx(o, a, bc), fs.ls.lastline)
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/ldump.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/ldump.lua
new file mode 100644
index 0000000..1b3c608
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/ldump.lua
@@ -0,0 +1,362 @@
+--[[--------------------------------------------------------------------
+
+  ldump.lua
+  Save bytecodes in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * LUA_NUMBER (double), byte order (little endian) and some other
+--   header values hard-coded; see other notes below...
+-- * One significant difference is that instructions are still in table
+--   form (with OP/A/B/C/Bx fields) and luaP:Instruction() is needed to
+--   convert them into 4-char strings
+-- * Deleted:
+--   luaU:DumpVector: folded into DumpLines, DumpCode
+-- * Added:
+--   luaU:endianness() (from lundump.c)
+--   luaU:make_setS: create a chunk writer that writes to a string
+--   luaU:make_setF: create a chunk writer that writes to a file
+--     (lua.h contains a typedef for a Chunkwriter pointer, and
+--      a Lua-based implementation exists, writer() in lstrlib.c)
+--   luaU:from_double(x): encode double value for writing
+--   luaU:from_int(x): encode integer value for writing
+--     (error checking is limited for these conversion functions)
+--     (double conversion does not support denormals or NaNs)
+--   luaU:ttype(o) (from lobject.h)
+----------------------------------------------------------------------]]
+
+--requires luaP
+luaU = {}
+
+-- constants used by dumper
+luaU.LUA_TNUMBER = 3 -- (all in lua.h)
+luaU.LUA_TSTRING = 4
+luaU.LUA_TNIL    = 0
+luaU.LUA_TNONE  = -1
+
+-- definitions for headers of binary files
+luaU.LUA_SIGNATURE = "\27Lua"   -- binary files start with "<esc>Lua"
+luaU.VERSION = 80               -- 0x50; last format change was in 5.0
+luaU.VERSION0 = 80              -- 0x50; last major  change was in 5.0
+
+-- a multiple of PI for testing native format
+-- multiplying by 1E7 gives non-trivial integer values
+luaU.TEST_NUMBER = 3.14159265358979323846E7
+
+--[[--------------------------------------------------------------------
+-- Additional functions to handle chunk writing
+-- * to use make_setS and make_setF, see test_ldump.lua elsewhere
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- works like the lobject.h version except that TObject used in these
+-- scripts only has a 'value' field, no 'tt' field (native types used)
+------------------------------------------------------------------------
+function luaU:ttype(o)
+  local tt = type(o.value)
+  if tt == "number" then return self.LUA_TNUMBER
+  elseif tt == "string" then return self.LUA_TSTRING
+  elseif tt == "nil" then return self.LUA_TNIL
+  else
+    return self.LUA_TNONE  -- the rest should not appear
+  end
+end
+
+------------------------------------------------------------------------
+-- create a chunk writer that writes to a string
+-- * returns the writer function and a table containing the string
+-- * to get the final result, look in buff.data
+------------------------------------------------------------------------
+function luaU:make_setS()
+  local buff = {}
+        buff.data = ""
+  local writer =
+    function(s, buff)  -- chunk writer
+      if not s then return end
+      buff.data = buff.data..s
+    end
+  return writer, buff
+end
+
+------------------------------------------------------------------------
+-- create a chunk writer that writes to a file
+-- * returns the writer function and a table containing the file handle
+-- * if a nil is passed, then writer should close the open file
+------------------------------------------------------------------------
+function luaU:make_setF(filename)
+  local buff = {}
+        buff.h = io.open(filename, "wb")
+  if not buff.h then return nil end
+  local writer =
+    function(s, buff)  -- chunk writer
+      if not buff.h then return end
+      if not s then buff.h:close(); return end
+      buff.h:write(s)
+    end
+  return writer, buff
+end
+
+-----------------------------------------------------------------------
+-- converts a IEEE754 double number to an 8-byte little-endian string
+-- * luaU:from_double() and luaU:from_int() are from ChunkBake project
+-- * supports +/- Infinity, but not denormals or NaNs
+-----------------------------------------------------------------------
+function luaU:from_double(x)
+  local function grab_byte(v)
+    return math.floor(v / 256),
+           string.char(math.mod(math.floor(v), 256))
+  end
+  local sign = 0
+  if x < 0 then sign = 1; x = -x end
+  local mantissa, exponent = math.frexp(x)
+  if x == 0 then -- zero
+    mantissa, exponent = 0, 0
+  elseif x == 1/0 then
+    mantissa, exponent = 0, 2047
+  else
+    mantissa = (mantissa * 2 - 1) * math.ldexp(0.5, 53)
+    exponent = exponent + 1022
+  end
+  local v, byte = "" -- convert to bytes
+  x = mantissa
+  for i = 1,6 do
+    x, byte = grab_byte(x); v = v..byte -- 47:0
+  end
+  x, byte = grab_byte(exponent * 16 + x); v = v..byte -- 55:48
+  x, byte = grab_byte(sign * 128 + x); v = v..byte -- 63:56
+  return v
+end
+
+-----------------------------------------------------------------------
+-- converts a number to a little-endian 32-bit integer string
+-- * input value assumed to not overflow, can be signed/unsigned
+-----------------------------------------------------------------------
+function luaU:from_int(x)
+  local v = ""
+  x = math.floor(x)
+  if x >= 0 then
+    for i = 1, 4 do
+      v = v..string.char(math.mod(x, 256)); x = math.floor(x / 256)
+    end
+  else-- x < 0
+    x = -x
+    local carry = 1
+    for i = 1, 4 do
+      local c = 255 - math.mod(x, 256) + carry
+      if c == 256 then c = 0; carry = 1 else carry = 0 end
+      v = v..string.char(c); x = math.floor(x / 256)
+    end
+  end
+  return v
+end
+
+--[[--------------------------------------------------------------------
+-- Functions to make a binary chunk
+-- * many functions have the size parameter removed, since output is
+--   in the form of a string and some sizes are implicit or hard-coded
+-- * luaU:DumpVector has been deleted (used in DumpCode & DumpLines)
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- dump a block of literal bytes
+------------------------------------------------------------------------
+function luaU:DumpLiteral(s, D) self:DumpBlock(s, D) end
+
+--[[--------------------------------------------------------------------
+-- struct DumpState:
+--   L  -- lua_State (not used in this script)
+--   write  -- lua_Chunkwriter (chunk writer function)
+--   data  -- void* (chunk writer context or data already written)
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- dumps a block of bytes
+-- * lua_unlock(D.L), lua_lock(D.L) deleted
+------------------------------------------------------------------------
+function luaU:DumpBlock(b, D) D.write(b, D.data) end
+
+------------------------------------------------------------------------
+-- dumps a single byte
+------------------------------------------------------------------------
+function luaU:DumpByte(y, D)
+  self:DumpBlock(string.char(y), D)
+end
+
+------------------------------------------------------------------------
+-- dumps a 32-bit signed integer (for int)
+------------------------------------------------------------------------
+function luaU:DumpInt(x, D)
+  self:DumpBlock(self:from_int(x), D)
+end
+
+------------------------------------------------------------------------
+-- dumps a 32-bit unsigned integer (for size_t)
+------------------------------------------------------------------------
+function luaU:DumpSize(x, D)
+  self:DumpBlock(self:from_int(x), D)
+end
+
+------------------------------------------------------------------------
+-- dumps a LUA_NUMBER (hard-coded as a double)
+------------------------------------------------------------------------
+function luaU:DumpNumber(x, D)
+  self:DumpBlock(self:from_double(x), D)
+end
+
+------------------------------------------------------------------------
+-- dumps a Lua string
+------------------------------------------------------------------------
+function luaU:DumpString(s, D)
+  if s == nil then
+    self:DumpSize(0, D)
+  else
+    s = s.."\0"  -- include trailing '\0'
+    self:DumpSize(string.len(s), D)
+    self:DumpBlock(s, D)
+  end
+end
+
+------------------------------------------------------------------------
+-- dumps instruction block from function prototype
+------------------------------------------------------------------------
+function luaU:DumpCode(f, D)
+  local n = f.sizecode
+  self:DumpInt(n, D)
+  --was DumpVector
+  for i = 0, n - 1 do
+    self:DumpBlock(luaP:Instruction(f.code[i]), D)
+  end
+end
+
+------------------------------------------------------------------------
+-- dumps local variable names from function prototype
+------------------------------------------------------------------------
+function luaU:DumpLocals(f, D)
+  local n = f.sizelocvars
+  self:DumpInt(n, D)
+  for i = 0, n - 1 do
+    self:DumpString(f.locvars[i].varname, D)
+    self:DumpInt(f.locvars[i].startpc, D)
+    self:DumpInt(f.locvars[i].endpc, D)
+  end
+end
+
+------------------------------------------------------------------------
+-- dumps line information from function prototype
+------------------------------------------------------------------------
+function luaU:DumpLines(f, D)
+  local n = f.sizelineinfo
+  self:DumpInt(n, D)
+  --was DumpVector
+  for i = 0, n - 1 do
+    self:DumpInt(f.lineinfo[i], D)  -- was DumpBlock
+  end
+end
+
+------------------------------------------------------------------------
+-- dump upvalue names from function prototype
+------------------------------------------------------------------------
+function luaU:DumpUpvalues(f, D)
+  local n = f.sizeupvalues
+  self:DumpInt(n, D)
+  for i = 0, n - 1 do
+    self:DumpString(f.upvalues[i], D)
+  end
+end
+
+------------------------------------------------------------------------
+-- dump constant pool from function prototype
+-- * nvalue(o) and tsvalue(o) macros removed
+------------------------------------------------------------------------
+function luaU:DumpConstants(f, D)
+  local n = f.sizek
+  self:DumpInt(n, D)
+  for i = 0, n - 1 do
+    local o = f.k[i]  -- TObject
+    local tt = self:ttype(o)
+    self:DumpByte(tt, D)
+    if tt == self.LUA_TNUMBER then
+      self:DumpNumber(o.value, D)
+    elseif tt == self.LUA_TSTRING then
+      self:DumpString(o.value, D)
+    elseif tt == self.LUA_TNIL then
+    else
+      --lua_assert(0)  -- cannot happen
+    end
+  end
+  n = f.sizep
+  self:DumpInt(n, D)
+  for i = 0, n - 1 do
+    self:DumpFunction(f.p[i], f.source, D)
+  end
+end
+
+------------------------------------------------------------------------
+-- dump child function prototypes from function prototype
+------------------------------------------------------------------------
+function luaU:DumpFunction(f, p, D)
+  local source = f.source
+  if source == p then source = nil end
+  self:DumpString(source, D)
+  self:DumpInt(f.lineDefined, D)
+  self:DumpByte(f.nups, D)
+  self:DumpByte(f.numparams, D)
+  self:DumpByte(f.is_vararg, D)
+  self:DumpByte(f.maxstacksize, D)
+  self:DumpLines(f, D)
+  self:DumpLocals(f, D)
+  self:DumpUpvalues(f, D)
+  self:DumpConstants(f, D)
+  self:DumpCode(f, D)
+end
+
+------------------------------------------------------------------------
+-- dump Lua header section (some sizes hard-coded)
+------------------------------------------------------------------------
+function luaU:DumpHeader(D)
+  self:DumpLiteral(self.LUA_SIGNATURE, D)
+  self:DumpByte(self.VERSION, D)
+  self:DumpByte(self:endianness(), D)
+  self:DumpByte(4, D)  -- sizeof(int)
+  self:DumpByte(4, D)  -- sizeof(size_t)
+  self:DumpByte(4, D)  -- sizeof(Instruction)
+  self:DumpByte(luaP.SIZE_OP, D)
+  self:DumpByte(luaP.SIZE_A, D)
+  self:DumpByte(luaP.SIZE_B, D)
+  self:DumpByte(luaP.SIZE_C, D)
+  self:DumpByte(8, D)  -- sizeof(lua_Number)
+  self:DumpNumber(self.TEST_NUMBER, D)
+end
+
+------------------------------------------------------------------------
+-- dump function as precompiled chunk
+-- * w, data are created from make_setS, make_setF
+------------------------------------------------------------------------
+function luaU:dump(L, Main, w, data)
+  local D = {}  -- DumpState
+  D.L = L
+  D.write = w
+  D.data = data
+  self:DumpHeader(D)
+  self:DumpFunction(Main, nil, D)
+  -- added: for a chunk writer writing to a file, this final call with
+  -- nil data is to indicate to the writer to close the file
+  D.write(nil, D.data)
+end
+
+------------------------------------------------------------------------
+-- find byte order (from lundump.c)
+-- * hard-coded to little-endian
+------------------------------------------------------------------------
+function luaU:endianness()
+  return 1
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/llex.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/llex.lua
new file mode 100644
index 0000000..077f1aa
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/llex.lua
@@ -0,0 +1,531 @@
+--[[--------------------------------------------------------------------
+
+  llex.lua
+  Lua 5 lexical analyzer in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * intended to 'imitate' llex.c code; performance is not a concern
+-- * tokens are strings; code structure largely retained
+-- * deleted stuff (compared to llex.c) are noted, comments retained
+-- * Added:
+--   luaX:chunkid (from lobject.c)
+-- * To use the lexer:
+--   (1) luaX:init() to initialize the lexer
+--   (2) luaX:setinput() to set the input stream to lex, get LS
+--   (3) call luaX:lex() to get tokens, until "TK_EOS":
+--       LS.t.token = luaX:lex(LS, LS.t)
+-- * since EOZ is returned as a string, be careful when regexp testing
+----------------------------------------------------------------------]]
+
+luaX = {}
+
+-- FIRST_RESERVED is not required as tokens are manipulated as strings
+-- TOKEN_LEN deleted; maximum length of a reserved word
+
+------------------------------------------------------------------------
+-- "ORDER RESERVED" deleted; enumeration in one place: luaX.RESERVED
+------------------------------------------------------------------------
+
+-- terminal symbols denoted by reserved words: TK_AND to TK_WHILE
+-- other terminal symbols: TK_NAME to TK_EOS
+luaX.RESERVED = [[
+TK_AND and
+TK_BREAK break
+TK_DO do
+TK_ELSE else
+TK_ELSEIF elseif
+TK_END end
+TK_FALSE false
+TK_FOR for
+TK_FUNCTION function
+TK_IF if
+TK_IN in
+TK_LOCAL local
+TK_NIL nil
+TK_NOT not
+TK_OR or
+TK_REPEAT repeat
+TK_RETURN return
+TK_THEN then
+TK_TRUE true
+TK_UNTIL until
+TK_WHILE while
+TK_NAME *name
+TK_CONCAT ..
+TK_DOTS ...
+TK_EQ ==
+TK_GE >=
+TK_LE <=
+TK_NE ~=
+TK_NUMBER *number
+TK_STRING *string
+TK_EOS <eof>]]
+
+-- NUM_RESERVED is not required; number of reserved words
+
+--[[--------------------------------------------------------------------
+-- Instead of passing seminfo, the Token struct (e.g. LS.t) is passed
+-- so that lexer functions can use its table element, LS.t.seminfo
+--
+-- Token (struct of LS.t and LS.lookahead):
+--   token  -- token symbol
+--   seminfo  -- semantics information
+--
+-- LexState (struct of LS; LS is initialized by luaX:setinput):
+--   current  -- current character
+--   linenumber  -- input line counter
+--   lastline  -- line of last token 'consumed'
+--   t  -- current token (table: struct Token)
+--   lookahead  -- look ahead token (table: struct Token)
+--   fs  -- 'FuncState' is private to the parser
+--   L -- LuaState
+--   z  -- input stream
+--   buff  -- buffer for tokens
+--   source  -- current source name
+--   nestlevel  -- level of nested non-terminals
+----------------------------------------------------------------------]]
+
+-- token2string is now a hash; see luaX:init
+
+------------------------------------------------------------------------
+-- initialize lexer
+------------------------------------------------------------------------
+function luaX:init()
+  self.token2string = {}
+  self.string2token = {}
+  for v in string.gfind(self.RESERVED, "[^\n]+") do
+    local _, _, tok, str = string.find(v, "(%S+)%s+(%S+)")
+    self.token2string[tok] = str
+    self.string2token[str] = tok
+  end
+end
+
+luaX.MAXSRC = 80
+
+------------------------------------------------------------------------
+-- returns a suitably-formatted chunk name or id
+-- * from lobject.c, used in llex.c and ldebug.c
+-- * the result, out, is returned (was first argument)
+------------------------------------------------------------------------
+function luaX:chunkid(source, bufflen)
+  local out
+  local first = string.sub(source, 1, 1)
+  if first == "=" then
+    out = string.sub(source, 2, bufflen)  -- remove first char
+  else  -- out = "source", or "...source"
+    if first == "@" then
+      source = string.sub(source, 2)  -- skip the '@'
+      bufflen = bufflen - string.len(" `...' ")
+      local l = string.len(source)
+      out = ""
+      if l > bufflen then
+        source = string.sub(source, 1 + l - bufflen)  -- get last part of file name
+        out = out.."..."
+      end
+      out = out..source
+    else  -- out = [string "string"]
+      local len = string.find(source, "\n", 1, 1)  -- stop at first newline
+      len = len and (len - 1) or string.len(source)
+      bufflen = bufflen - string.len(" [string \"...\"] ")
+      if len > bufflen then len = bufflen end
+      out = "[string \""
+      if len < string.len(source) then  -- must truncate?
+        out = out..string.sub(source, 1, len).."..."
+      else
+        out = out..source
+      end
+      out = out.."\"]"
+    end
+  end
+  return out
+end
+
+--[[--------------------------------------------------------------------
+-- Support functions for lexer
+-- * all lexer errors eventually reaches errorline:
+     checklimit -> syntaxerror -> error -> errorline
+                      lexerror -> error -> errorline
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- limit check, syntax error if fails (also called by parser)
+------------------------------------------------------------------------
+function luaX:checklimit(ls, val, limit, msg)
+  if val > limit then
+    msg = string.format("too many %s (limit=%d)", msg, limit)
+    self:syntaxerror(ls, msg)
+  end
+end
+
+------------------------------------------------------------------------
+-- formats error message and throws error (also called by parser)
+------------------------------------------------------------------------
+function luaX:errorline(ls, s, token, line)
+  local buff = self:chunkid(ls.source, self.MAXSRC)
+  error(string.format("%s:%d: %s near `%s'", buff, line, s, token))
+end
+
+------------------------------------------------------------------------
+-- throws an error, adds line number
+------------------------------------------------------------------------
+function luaX:error(ls, s, token)
+  self:errorline(ls, s, token, ls.linenumber)
+end
+
+------------------------------------------------------------------------
+-- throws a syntax error (mainly called by parser)
+-- * ls.t.token has to be set by the function calling luaX:lex
+--   (see next() and lookahead() in lparser.c)
+------------------------------------------------------------------------
+function luaX:syntaxerror(ls, msg)
+  local lasttoken
+  local tok = ls.t.token
+  if tok == "TK_NAME" then
+    lasttoken = ls.t.seminfo
+  elseif tok == "TK_STRING" or tok == "TK_NUMBER" then
+    lasttoken = ls.buff
+  else
+    lasttoken = self:token2str(ls.t.token)
+  end
+  self:error(ls, msg, lasttoken)
+end
+
+------------------------------------------------------------------------
+-- look up token and return keyword if found (also called by parser)
+------------------------------------------------------------------------
+function luaX:token2str(ls, token)
+  if string.sub(token, 1, 3) ~= "TK_" then
+    return token
+  else
+    --lua_assert(string.len(token) == 1)
+    return self.token2string[token]
+  end
+end
+
+------------------------------------------------------------------------
+-- throws a lexer error
+------------------------------------------------------------------------
+function luaX:lexerror(ls, s, token)
+  if token == "TK_EOS" then
+    self:error(ls, s, self:token2str(ls, token))
+  else
+    self:error(ls, s, ls.buff)
+  end
+end
+
+------------------------------------------------------------------------
+-- move on to next line
+------------------------------------------------------------------------
+function luaX:inclinenumber(LS)
+  self:next(LS)  -- skip '\n'
+  LS.linenumber = LS.linenumber + 1
+  self:checklimit(LS, LS.linenumber, self.MAX_INT, "lines in a chunk")
+end
+
+luaX.MAX_INT = 2147483645  -- INT_MAX-2 for 32-bit systems (llimits.h)
+
+------------------------------------------------------------------------
+-- initializes an input stream for lexing
+-- * if LS (the lexer state) is passed as a table, then it is filled in,
+--   otherwise it has to be retrieved as a return value
+------------------------------------------------------------------------
+function luaX:setinput(L, LS, z, source)
+  if not LS then LS = {} end  -- create struct
+  if not LS.lookahead then LS.lookahead = {} end
+  if not LS.t then LS.t = {} end
+  LS.L = L
+  LS.lookahead.token = "TK_EOS"  -- no look-ahead token
+  LS.z = z
+  LS.fs = nil
+  LS.linenumber = 1
+  LS.lastline = 1
+  LS.source = source
+  self:next(LS)  -- read first char
+  if LS.current == "#" then
+    repeat  -- skip first line
+      self:next(LS)
+    until LS.current == "\n" or LS.current == "EOZ"
+  end
+  return LS
+end
+
+--[[--------------------------------------------------------------------
+-- LEXICAL ANALYZER
+----------------------------------------------------------------------]]
+
+-- NOTE the following buffer handling stuff are no longer required:
+-- use buffer to store names, literal strings and numbers
+-- EXTRABUFF deleted; extra space to allocate when growing buffer
+-- MAXNOCHECK deleted; maximum number of chars that can be read without checking buffer size
+-- checkbuffer(LS, len) deleted
+
+------------------------------------------------------------------------
+-- gets the next character and returns it
+------------------------------------------------------------------------
+function luaX:next(LS)
+  local c = luaZ:zgetc(LS.z)
+  LS.current = c
+  return c
+end
+
+------------------------------------------------------------------------
+-- saves the given character into the token buffer
+------------------------------------------------------------------------
+function luaX:save(LS, c)
+  LS.buff = LS.buff..c
+end
+
+------------------------------------------------------------------------
+-- save current character into token buffer, grabs next character
+------------------------------------------------------------------------
+function luaX:save_and_next(LS)
+  self:save(LS, LS.current)
+  return self:next(LS)
+end
+
+------------------------------------------------------------------------
+-- reads a name
+-- * originally returns the string length
+------------------------------------------------------------------------
+function luaX:readname(LS)
+  LS.buff = ""
+  repeat
+    self:save_and_next(LS)
+  until LS.current == "EOZ" or not string.find(LS.current, "[_%w]")
+  return LS.buff
+end
+
+------------------------------------------------------------------------
+-- reads a number (LUA_NUMBER)
+------------------------------------------------------------------------
+function luaX:read_numeral(LS, comma, Token)
+  LS.buff = ""
+  if comma then self:save(LS, '.') end
+  while string.find(LS.current, "%d") do
+    self:save_and_next(LS)
+  end
+  if LS.current == "." then
+    self:save_and_next(LS)
+    if LS.current == "." then
+      self:save_and_next(LS)
+      self:lexerror(LS,
+        "ambiguous syntax (decimal point x string concatenation)",
+        "TK_NUMBER")
+    end
+  end
+  while string.find(LS.current, "%d") do
+    self:save_and_next(LS)
+  end
+  if LS.current == "e" or LS.current == "E" then
+    self:save_and_next(LS)  -- read 'E'
+    if LS.current == "+" or LS.current == "-" then
+      self:save_and_next(LS)  -- optional exponent sign
+    end
+    while string.find(LS.current, "%d") do
+      self:save_and_next(LS)
+    end
+  end
+  local seminfo = tonumber(LS.buff)
+  if not seminfo then
+    self:lexerror(LS, "malformed number", "TK_NUMBER")
+  end
+  Token.seminfo = seminfo
+end
+
+------------------------------------------------------------------------
+-- reads a long string or long comment
+------------------------------------------------------------------------
+function luaX:read_long_string(LS, Token)
+  local cont = 0
+  LS.buff = ""
+  self:save(LS, "[")  -- save first '['
+  self:save_and_next(LS)  -- pass the second '['
+  if LS.current == "\n" then  -- string starts with a newline?
+    self:inclinenumber(LS)  -- skip it
+  end
+  while true do
+    local c = LS.current
+    if c == "EOZ" then
+      self:lexerror(LS, Token and "unfinished long string" or
+                    "unfinished long comment", "TK_EOS")
+    elseif c == "[" then
+      self:save_and_next(LS)
+      if LS.current == "[" then
+        cont = cont + 1
+        self:save_and_next(LS)
+      end
+    elseif c == "]" then
+      self:save_and_next(LS)
+      if LS.current == "]" then
+        if cont == 0 then break end
+        cont = cont - 1
+        self:save_and_next(LS)
+      end
+    elseif c == "\n" then
+      self:save(LS, "\n")
+      self:inclinenumber(LS)
+      if not Token then LS.buff = "" end -- reset buffer to avoid wasting space
+    else
+      self:save_and_next(LS)
+    end--if c
+  end--while
+  self:save_and_next(LS)  -- skip the second ']'
+  if Token then
+    Token.seminfo = string.sub(LS.buff, 3, -3)
+  end
+end
+
+------------------------------------------------------------------------
+-- reads a string
+------------------------------------------------------------------------
+function luaX:read_string(LS, del, Token)
+  LS.buff = ""
+  self:save_and_next(LS)
+  while LS.current ~= del do
+    local c = LS.current
+    if c == "EOZ" then
+      self:lexerror(LS, "unfinished string", "TK_EOS")
+    elseif c == "\n" then
+      self:lexerror(LS, "unfinished string", "TK_STRING")
+    elseif c == "\\" then
+      c = self:next(LS)  -- do not save the '\'
+      if c ~= "EOZ" then -- will raise an error next loop
+        -- escapes handling greatly simplified here:
+        local i = string.find("abfnrtv\n", c, 1, 1)
+        if i then
+          self:save(LS, string.sub("\a\b\f\n\r\t\v\n", i, i))
+          if i == 8 then self:inclinenumber(LS) else self:next(LS) end
+        elseif not string.find(c, "%d") then
+          self:save_and_next(LS)  -- handles \\, \", \', and \?
+        else  -- \xxx
+          c, i = 0, 0
+          repeat
+            c = 10 * c + LS.current
+            self:next(LS)
+            i = i + 1
+          until i >= 3 or not string.find(LS.current, "%d")
+          if c > 255 then  -- UCHAR_MAX
+            self:lexerror(LS, "escape sequence too large", "TK_STRING")
+          end
+          self:save(LS, string.char(c))
+        end
+      end
+    else
+      self:save_and_next(LS)
+    end--if c
+  end--while
+  self:save_and_next(LS)  -- skip delimiter
+  Token.seminfo = string.sub(LS.buff, 2, -2)
+end
+
+------------------------------------------------------------------------
+-- main lexer function
+------------------------------------------------------------------------
+function luaX:lex(LS, Token)
+  while true do
+    local c = LS.current
+    ----------------------------------------------------------------
+    if c == "\n" then
+      self:inclinenumber(LS)
+    ----------------------------------------------------------------
+    elseif c == "-" then
+      c = self:next(LS)
+      if c ~= "-" then return "-" end
+      -- else is a comment
+      c = self:next(LS)
+      if c == "[" and self:next(LS) == "[" then
+        self:read_long_string(LS)  -- long comment
+      else  -- short comment
+        c = LS.current
+        while c ~= "\n" and c ~= "EOZ" do
+          c = self:next(LS)
+        end
+      end
+    ----------------------------------------------------------------
+    elseif c == "[" then
+      c = self:next(LS)
+      if c ~= "[" then return "["
+      else
+        self:read_long_string(LS, Token)
+        return "TK_STRING"
+      end
+    ----------------------------------------------------------------
+    elseif c == "=" then
+      c = self:next(LS)
+      if c ~= "=" then return "="
+      else self:next(LS); return "TK_EQ" end
+    ----------------------------------------------------------------
+    elseif c == "<" then
+      c = self:next(LS)
+      if c ~= "=" then return "<"
+      else self:next(LS); return "TK_LE" end
+    ----------------------------------------------------------------
+    elseif c == ">" then
+      c = self:next(LS)
+      if c ~= "=" then return ">"
+      else self:next(LS); return "TK_GE" end
+    ----------------------------------------------------------------
+    elseif c == "~" then
+      c = self:next(LS)
+      if c ~= "=" then return "~"
+      else self:next(LS); return "TK_NE" end
+    ----------------------------------------------------------------
+    elseif c == "\"" or c == "'" then
+      self:read_string(LS, c, Token)
+      return "TK_STRING"
+    ----------------------------------------------------------------
+    elseif c == "." then
+      c = self:next(LS)
+      if c == "." then
+        c = self:next(LS)
+        if c == "." then
+          self:next(LS)
+          return "TK_DOTS"  -- ...
+        else
+          return "TK_CONCAT"  -- ..
+        end
+      elseif not string.find(c, "%d") then
+        return '.'
+      else
+        self:read_numeral(LS, true, Token)
+        return "TK_NUMBER"
+      end
+    ----------------------------------------------------------------
+    elseif c == "EOZ" then
+      return "TK_EOS"
+    ----------------------------------------------------------------
+    else  -- default
+      if string.find(c, "%s") then
+        self:next(LS)
+      elseif string.find(c, "%d") then
+        self:read_numeral(LS, false, Token)
+        return "TK_NUMBER"
+      elseif string.find(c, "[_%a]") then
+        -- identifier or reserved word
+        local l = self:readname(LS)
+        local tok = self.string2token[l]
+        if tok then return tok end  -- reserved word?
+        Token.seminfo = l
+        return "TK_NAME"
+      else
+        if string.find(c, "%c") then
+          self:error(LS, "invalid control char",
+                     string.format("char(%d)", string.byte(c)))
+        end
+        self:next(LS)
+        return c  -- single-char tokens (+ - / ...)
+      end
+    ----------------------------------------------------------------
+    end--if c
+  end--while
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/lopcodes.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/lopcodes.lua
new file mode 100644
index 0000000..0c4eebd
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/lopcodes.lua
@@ -0,0 +1,349 @@
+--[[--------------------------------------------------------------------
+
+  lopcodes.lua
+  Lua 5 virtual machine opcodes in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * an Instruction is a table with OP, A, B, C, Bx elements; this
+--   should allow instruction handling to work with doubles and ints
+-- * Added:
+--   luaP:Instruction(i): convert field elements to a 4-char string
+--   luaP:DecodeInst(x): convert 4-char string into field elements
+-- * WARNING luaP:Instruction outputs instructions encoded in little-
+--   endian form and field size and positions are hard-coded
+----------------------------------------------------------------------]]
+
+luaP = {}
+
+--[[
+===========================================================================
+  We assume that instructions are unsigned numbers.
+  All instructions have an opcode in the first 6 bits.
+  Instructions can have the following fields:
+        'A' : 8 bits
+        'B' : 9 bits
+        'C' : 9 bits
+        'Bx' : 18 bits ('B' and 'C' together)
+        'sBx' : signed Bx
+
+  A signed argument is represented in excess K; that is, the number
+  value is the unsigned value minus K. K is exactly the maximum value
+  for that argument (so that -max is represented by 0, and +max is
+  represented by 2*max), which is half the maximum for the corresponding
+  unsigned argument.
+===========================================================================
+--]]
+
+luaP.OpMode = {"iABC", "iABx", "iAsBx"}  -- basic instruction format
+
+------------------------------------------------------------------------
+-- size and position of opcode arguments.
+-- * WARNING size and position is hard-coded elsewhere in this script
+------------------------------------------------------------------------
+luaP.SIZE_C  = 9
+luaP.SIZE_B  = 9
+luaP.SIZE_Bx = luaP.SIZE_C + luaP.SIZE_B
+luaP.SIZE_A  = 8
+
+luaP.SIZE_OP = 6
+
+luaP.POS_C  = luaP.SIZE_OP
+luaP.POS_B  = luaP.POS_C + luaP.SIZE_C
+luaP.POS_Bx = luaP.POS_C
+luaP.POS_A  = luaP.POS_B + luaP.SIZE_B
+
+------------------------------------------------------------------------
+-- limits for opcode arguments.
+-- we use (signed) int to manipulate most arguments,
+-- so they must fit in BITS_INT-1 bits (-1 for sign)
+------------------------------------------------------------------------
+-- removed "#if SIZE_Bx < BITS_INT-1" test, assume this script is
+-- running on a Lua VM with double or int as LUA_NUMBER
+
+luaP.MAXARG_Bx  = math.ldexp(1, luaP.SIZE_Bx) - 1
+luaP.MAXARG_sBx = math.floor(luaP.MAXARG_Bx / 2)  -- 'sBx' is signed
+
+luaP.MAXARG_A = math.ldexp(1, luaP.SIZE_A) - 1
+luaP.MAXARG_B = math.ldexp(1, luaP.SIZE_B) - 1
+luaP.MAXARG_C = math.ldexp(1, luaP.SIZE_C) - 1
+
+-- creates a mask with 'n' 1 bits at position 'p'
+-- MASK1(n,p) deleted
+-- creates a mask with 'n' 0 bits at position 'p'
+-- MASK0(n,p) deleted
+
+--[[--------------------------------------------------------------------
+  Visual representation for reference:
+
+   31     |    |     |           0      bit position
+    +-----+-----+-----+----------+
+    |  A  |  B  |  C  |  Opcode  |      iABC format
+    +-----+-----+-----+----------+
+    -  8  -  9  -  9  -    6     -      field sizes
+    +-----+-----+-----+----------+
+    |  A  |   [s]Bx   |  Opcode  |      iABx | iAsBx format
+    +-----+-----+-----+----------+
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- the following macros help to manipulate instructions
+-- * changed to a table object representation, very clean compared to
+--   the [nightmare] alternatives of using a number or a string
+------------------------------------------------------------------------
+
+-- these accept or return opcodes in the form of string names
+function luaP:GET_OPCODE(i) return self.ROpCode[i.OP] end
+function luaP:SET_OPCODE(i, o) i.OP = self.OpCode[o] end
+
+function luaP:GETARG_A(i) return i.A end
+function luaP:SETARG_A(i, u) i.A = u end
+
+function luaP:GETARG_B(i) return i.B end
+function luaP:SETARG_B(i, b) i.B = b end
+
+function luaP:GETARG_C(i) return i.C end
+function luaP:SETARG_C(i, b) i.C = b end
+
+function luaP:GETARG_Bx(i) return i.Bx end
+function luaP:SETARG_Bx(i, b) i.Bx = b end
+
+function luaP:GETARG_sBx(i) return i.Bx - self.MAXARG_sBx end
+function luaP:SETARG_sBx(i, b) i.Bx = b + self.MAXARG_sBx end
+
+function luaP:CREATE_ABC(o,a,b,c)
+  return {OP = self.OpCode[o], A = a, B = b, C = c}
+end
+
+function luaP:CREATE_ABx(o,a,bc)
+  return {OP = self.OpCode[o], A = a, Bx = bc}
+end
+
+------------------------------------------------------------------------
+-- returns a 4-char string little-endian encoded form of an instruction
+------------------------------------------------------------------------
+function luaP:Instruction(i)
+  local I, c0, c1, c2, c3
+  if i.Bx then
+    -- change to OP/A/B/C format
+    i.C = math.mod(i.Bx, 512)
+    i.B = math.floor(i.Bx / 512)
+  end
+  I = i.C * 64 + i.OP
+  c0 = math.mod(I, 256)
+  I = i.B * 128 + math.floor(I / 256)  -- 7 bits of C left
+  c1 = math.mod(I, 256)
+  I = math.floor(I / 256)  -- 8 bits of B left
+  c2 = math.mod(I, 256)
+  c3 = math.mod(i.A, 256)
+  return string.char(c0, c1, c2, c3)
+end
+
+------------------------------------------------------------------------
+-- decodes a 4-char little-endian string into an instruction struct
+------------------------------------------------------------------------
+function luaP:DecodeInst(x)
+  local i = {}
+  local I = string.byte(x, 1)
+  local op = math.mod(I, 64)
+  i.OP = op
+  I = string.byte(x, 2) * 4 + math.floor(I / 64)  -- 2 bits of c0 left
+  i.C = math.mod(I, 512)
+  i.B = string.byte(x, 3) * 2 + math.floor(I / 128)  -- 1 bit of c2 left
+  i.A = string.byte(x, 4)
+  local opmode = self.OpMode[tonumber(string.sub(self.opmodes[op + 1], 7, 7))]
+  if opmode ~= "iABC" then
+    i.Bx = i.B * 512 + i.C
+  end
+  return i
+end
+
+------------------------------------------------------------------------
+-- invalid register that fits in 8 bits
+------------------------------------------------------------------------
+luaP.NO_REG = luaP.MAXARG_A
+
+------------------------------------------------------------------------
+-- R(x) - register
+-- Kst(x) - constant (in constant table)
+-- RK(x) == if x < MAXSTACK then R(x) else Kst(x-MAXSTACK)
+------------------------------------------------------------------------
+
+------------------------------------------------------------------------
+-- grep "ORDER OP" if you change these enums
+------------------------------------------------------------------------
+
+--[[--------------------------------------------------------------------
+Lua virtual machine opcodes (enum OpCode):
+------------------------------------------------------------------------
+name          args    description
+------------------------------------------------------------------------
+OP_MOVE       A B     R(A) := R(B)
+OP_LOADK      A Bx    R(A) := Kst(Bx)
+OP_LOADBOOL   A B C   R(A) := (Bool)B; if (C) PC++
+OP_LOADNIL    A B     R(A) := ... := R(B) := nil
+OP_GETUPVAL   A B     R(A) := UpValue[B]
+OP_GETGLOBAL  A Bx    R(A) := Gbl[Kst(Bx)]
+OP_GETTABLE   A B C   R(A) := R(B)[RK(C)]
+OP_SETGLOBAL  A Bx    Gbl[Kst(Bx)] := R(A)
+OP_SETUPVAL   A B     UpValue[B] := R(A)
+OP_SETTABLE   A B C   R(A)[RK(B)] := RK(C)
+OP_NEWTABLE   A B C   R(A) := {} (size = B,C)
+OP_SELF       A B C   R(A+1) := R(B); R(A) := R(B)[RK(C)]
+OP_ADD        A B C   R(A) := RK(B) + RK(C)
+OP_SUB        A B C   R(A) := RK(B) - RK(C)
+OP_MUL        A B C   R(A) := RK(B) * RK(C)
+OP_DIV        A B C   R(A) := RK(B) / RK(C)
+OP_POW        A B C   R(A) := RK(B) ^ RK(C)
+OP_UNM        A B     R(A) := -R(B)
+OP_NOT        A B     R(A) := not R(B)
+OP_CONCAT     A B C   R(A) := R(B).. ... ..R(C)
+OP_JMP        sBx     PC += sBx
+OP_EQ         A B C   if ((RK(B) == RK(C)) ~= A) then pc++
+OP_LT         A B C   if ((RK(B) <  RK(C)) ~= A) then pc++
+OP_LE         A B C   if ((RK(B) <= RK(C)) ~= A) then pc++
+OP_TEST       A B C   if (R(B) <=> C) then R(A) := R(B) else pc++
+OP_CALL       A B C   R(A), ... ,R(A+C-2) := R(A)(R(A+1), ... ,R(A+B-1))
+OP_TAILCALL   A B C   return R(A)(R(A+1), ... ,R(A+B-1))
+OP_RETURN     A B     return R(A), ... ,R(A+B-2)  (see note)
+OP_FORLOOP    A sBx   R(A)+=R(A+2); if R(A) <?= R(A+1) then PC+= sBx
+OP_TFORLOOP   A C     R(A+2), ... ,R(A+2+C) := R(A)(R(A+1), R(A+2));
+                      if R(A+2) ~= nil then pc++
+OP_TFORPREP   A sBx   if type(R(A)) == table then R(A+1):=R(A), R(A):=next;
+                      PC += sBx
+OP_SETLIST    A Bx    R(A)[Bx-Bx%FPF+i] := R(A+i), 1 <= i <= Bx%FPF+1
+OP_SETLISTO   A Bx    (see note)
+OP_CLOSE      A       close all variables in the stack up to (>=) R(A)
+OP_CLOSURE    A Bx    R(A) := closure(KPROTO[Bx], R(A), ... ,R(A+n))
+----------------------------------------------------------------------]]
+
+luaP.opnames = {}  -- opcode names
+luaP.OpCode = {}   -- lookup name -> number
+luaP.ROpCode = {}  -- lookup number -> name
+
+-- ORDER OP
+local i = 0
+for v in string.gfind([[
+MOVE LOADK LOADBOOL LOADNIL GETUPVAL
+GETGLOBAL GETTABLE SETGLOBAL SETUPVAL SETTABLE
+NEWTABLE SELF ADD SUB MUL
+DIV POW UNM NOT CONCAT
+JMP EQ LT LE TEST
+CALL TAILCALL RETURN FORLOOP TFORLOOP
+TFORPREP SETLIST SETLISTO CLOSE CLOSURE
+]], "%S+") do
+  local n = "OP_"..v
+  luaP.opnames[i] = v
+  luaP.OpCode[n] = i
+  luaP.ROpCode[i] = n
+  i = i + 1
+end
+luaP.NUM_OPCODES = i
+
+--[[
+===========================================================================
+  Notes:
+  (1) In OP_CALL, if (B == 0) then B = top. C is the number of returns - 1,
+      and can be 0: OP_CALL then sets 'top' to last_result+1, so
+      next open instruction (OP_CALL, OP_RETURN, OP_SETLIST) may use 'top'.
+
+  (2) In OP_RETURN, if (B == 0) then return up to 'top'
+
+  (3) For comparisons, B specifies what conditions the test should accept.
+
+  (4) All 'skips' (pc++) assume that next instruction is a jump
+
+  (5) OP_SETLISTO is used when the last item in a table constructor is a
+      function, so the number of elements set is up to top of stack
+===========================================================================
+--]]
+
+------------------------------------------------------------------------
+-- masks for instruction properties
+------------------------------------------------------------------------
+-- was enum OpModeMask:
+luaP.OpModeBreg = 2  -- B is a register
+luaP.OpModeBrk  = 3  -- B is a register/constant
+luaP.OpModeCrk  = 4  -- C is a register/constant
+luaP.OpModesetA = 5  -- instruction set register A
+luaP.OpModeK    = 6  -- Bx is a constant
+luaP.OpModeT    = 1  -- operator is a test
+
+------------------------------------------------------------------------
+-- get opcode mode, e.g. "iABC"
+------------------------------------------------------------------------
+function luaP:getOpMode(m)
+  return self.OpMode[tonumber(string.sub(self.opmodes[self.OpCode[m] + 1], 7, 7))]
+end
+
+------------------------------------------------------------------------
+-- test an instruction property flag
+-- * b is a string, e.g. "OpModeBreg"
+------------------------------------------------------------------------
+function luaP:testOpMode(m, b)
+  return (string.sub(self.opmodes[self.OpCode[m] + 1], self[b], self[b]) == "1")
+end
+
+-- number of list items to accumulate before a SETLIST instruction
+-- (must be a power of 2)
+-- * used in lparser, lvm, ldebug, ltests
+luaP.LFIELDS_PER_FLUSH = 32
+
+-- luaP_opnames[] is set above, as the luaP.opnames table
+-- opmode(t,b,bk,ck,sa,k,m) deleted
+
+--[[--------------------------------------------------------------------
+  Legend for luaP:opmodes:
+  T  -> T  B  -> B  mode -> m, where iABC  = 1
+  Bk -> b  Ck -> C                   iABx  = 2
+  sA -> A  K  -> K                   iAsBx = 3
+----------------------------------------------------------------------]]
+
+-- ORDER OP
+luaP.opmodes = {
+-- TBbCAKm      opcode
+  "0100101", -- OP_MOVE
+  "0000112", -- OP_LOADK
+  "0000101", -- OP_LOADBOOL
+  "0100101", -- OP_LOADNIL
+  "0000101", -- OP_GETUPVAL
+  "0000112", -- OP_GETGLOBAL
+  "0101101", -- OP_GETTABLE
+  "0000012", -- OP_SETGLOBAL
+  "0000001", -- OP_SETUPVAL
+  "0011001", -- OP_SETTABLE
+  "0000101", -- OP_NEWTABLE
+  "0101101", -- OP_SELF
+  "0011101", -- OP_ADD
+  "0011101", -- OP_SUB
+  "0011101", -- OP_MUL
+  "0011101", -- OP_DIV
+  "0011101", -- OP_POW
+  "0100101", -- OP_UNM
+  "0100101", -- OP_NOT
+  "0101101", -- OP_CONCAT
+  "0000003", -- OP_JMP
+  "1011001", -- OP_EQ
+  "1011001", -- OP_LT
+  "1011001", -- OP_LE
+  "1100101", -- OP_TEST
+  "0000001", -- OP_CALL
+  "0000001", -- OP_TAILCALL
+  "0000001", -- OP_RETURN
+  "0000003", -- OP_FORLOOP
+  "1000001", -- OP_TFORLOOP
+  "0000003", -- OP_TFORPREP
+  "0000002", -- OP_SETLIST
+  "0000002", -- OP_SETLISTO
+  "0000001", -- OP_CLOSE
+  "0000102", -- OP_CLOSURE
+}
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/lparser.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/lparser.lua
new file mode 100644
index 0000000..3180a7f
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/lparser.lua
@@ -0,0 +1,1706 @@
+--[[--------------------------------------------------------------------
+
+  lparser.lua
+  Lua 5 parser in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * LUA_COMPATUPSYNTAX option changed into a comment block
+-- * Added:
+--   some constants, see below
+--   luaY:newproto (from lfunc.c) -- called by lparser, lundump, luac
+--   luaY:int2fb (from lobject.c) -- called by lparser, ltests
+--   luaY:log2 (from lobject.c) -- called by lparser, ltests, ltable
+--   luaY:growvector (from lmem.h) -- skeleton only, limit checking
+-- * Unimplemented:
+--   luaG_checkcode() in lua_assert is not currently implemented
+----------------------------------------------------------------------]]
+
+--requires luaP, luaX, luaK
+luaY = {}
+
+------------------------------------------------------------------------
+-- constants used by parser
+-- * MAX_INT duplicated in luaX.MAX_INT
+------------------------------------------------------------------------
+luaY.MAX_INT = 2147483645  -- INT_MAX-2 for 32-bit systems (llimits.h)
+luaY.MAXVARS = 200  -- (llimits.h)
+luaY.MAXUPVALUES = 32  -- (llimits.h)
+luaY.MAXPARAMS = 100  -- (llimits.h)
+luaY.LUA_MAXPARSERLEVEL = 200  -- (llimits.h)
+luaY.LUA_MULTRET = -1  -- (lua.h)
+luaY.MAXSTACK = 250  -- (llimits.h, used in lcode.lua)
+
+------------------------------------------------------------------------
+-- Expression descriptor
+------------------------------------------------------------------------
+
+--[[--------------------------------------------------------------------
+-- * expkind changed to string constants; luaY:assignment was the only
+--   function to use a relational operator with this enumeration
+-- VVOID       -- no value
+-- VNIL        -- no value
+-- VTRUE       -- no value
+-- VFALSE      -- no value
+-- VK          -- info = index of constant in 'k'
+-- VLOCAL      -- info = local register
+-- VUPVAL,     -- info = index of upvalue in 'upvalues'
+-- VGLOBAL     -- info = index of table; aux = index of global name in 'k'
+-- VINDEXED    -- info = table register; aux = index register (or 'k')
+-- VJMP        -- info = instruction pc
+-- VRELOCABLE  -- info = instruction pc
+-- VNONRELOC   -- info = result register
+-- VCALL       -- info = result register
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- struct expdesc:
+--   k  -- (enum: expkind)
+--   info, aux
+--   t  -- patch list of 'exit when true'
+--   f  -- patch list of 'exit when false'
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- state needed to generate code for a given function
+-- struct FuncState:
+--   f  -- current function header (table: Proto)
+--   h  -- table to find (and reuse) elements in 'k' (table: Table)
+--   prev  -- enclosing function (table: FuncState)
+--   ls  -- lexical state (table: LexState)
+--   L  -- copy of the Lua state (table: lua_State)
+--   bl  -- chain of current blocks (table: BlockCnt)
+--   pc  -- next position to code (equivalent to 'ncode')
+--   lasttarget   -- 'pc' of last 'jump target'
+--   jpc  -- list of pending jumps to 'pc'
+--   freereg  -- first free register
+--   nk  -- number of elements in 'k'
+--   np  -- number of elements in 'p'
+--   nlocvars  -- number of elements in 'locvars'
+--   nactvar  -- number of active local variables
+--   upvalues[MAXUPVALUES]  -- upvalues (table: expdesc)
+--   actvar[MAXVARS]  -- declared-variable stack
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- converts an integer to a "floating point byte", represented as
+-- (mmmmmxxx), where the real value is (xxx) * 2^(mmmmm)
+------------------------------------------------------------------------
+
+function luaY:int2fb(x)
+  local m = 0  -- mantissa
+  while x >= 8 do
+    x = math.floor((x + 1) / 2)
+    m = m + 1
+  end
+  return m * 8 + x
+end
+
+------------------------------------------------------------------------
+-- calculates log value for encoding the hash portion's size
+-- * there are 2 implementations: the shorter one uses math.frexp
+--   while the other one is based on the original code, so pick one...
+-- * since LUA_NUMBER is assumed to be a double elsewhere, the
+--   shorter version works fine
+------------------------------------------------------------------------
+--[[
+function luaY:log2(x)
+  -- this is based on the original lua0_log2 in lobject.c
+  local log_8 = {  -- index starts from 1
+    0,
+    1,1,
+    2,2,2,2,
+    3,3,3,3,3,3,3,3,
+    4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,4,
+    5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+    6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
+    6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
+    7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+    7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+    7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+    7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7
+  }
+  if x >= 65536 then
+    if x >= 16777216 then
+      return log_8[math.mod(math.floor(x / 16777216), 256)] + 24
+    else
+      return log_8[math.mod(math.floor(x / 65536), 256)] + 16
+    end
+  else
+    if x >= 256 then
+      return log_8[math.mod(math.floor(x / 256), 256)] + 8
+    elseif x > 0 then
+      return log_8[math.mod(x, 256)]
+    end
+    return -1  -- special 'log' for 0
+  end
+end
+--]]
+-- [[
+function luaY:log2(x)
+  -- math result is always one more than lua0_log2()
+  local mn, ex = math.frexp(x)
+  return ex - 1
+end
+--]]
+
+------------------------------------------------------------------------
+-- this is a stripped-down luaM_growvector (from lmem.h) which is a
+-- macro based on luaM_growaux (in lmem.c); all this function does is
+-- reproduce the size limit checking logic of the original function
+-- so that error behaviour is identical; all arguments preserved for
+-- convenience, even those which are unused
+-- * set the t field to nil, since this originally does a sizeof(t)
+-- * size (originally a pointer) is never updated, their final values
+--   are set by luaY:close_func(), so overall things should still work
+------------------------------------------------------------------------
+function luaY:growvector(L, v, nelems, size, t, limit, e)
+  local MINSIZEARRAY = 4  -- defined in lmem.c
+  -- still have at least MINSIZEARRAY free places
+  if nelems >= limit - MINSIZEARRAY then
+    luaX:syntaxerror(ls, e)
+  end
+end
+
+-- getlocvar(fs, i) has been placed with functions for locals, changed
+-- into a function
+
+------------------------------------------------------------------------
+-- tracks and limits parsing depth, assert check at end of parsing
+------------------------------------------------------------------------
+function luaY:enterlevel(ls)
+  ls.nestlevel = ls.nestlevel + 1
+  if ls.nestlevel > self.LUA_MAXPARSERLEVEL then
+    luaX:syntaxerror(ls, "too many syntax levels")
+  end
+end
+
+------------------------------------------------------------------------
+-- tracks parsing depth, a pair with luaY:enterlevel()
+------------------------------------------------------------------------
+function luaY:leavelevel(ls)
+  ls.nestlevel = ls.nestlevel - 1
+end
+
+------------------------------------------------------------------------
+-- nodes for block list (list of active blocks)
+------------------------------------------------------------------------
+--[[--------------------------------------------------------------------
+-- struct BlockCnt:
+--   previous  -- chain (table: struct BlockCnt)
+--   breaklist  -- list of jumps out of this loop
+--   nactvar  -- # active local variables outside the breakable structure
+--   upval  -- true if some variable in the block is an upvalue (boolean)
+--   isbreakable  -- true if 'block' is a loop (boolean)
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- prototypes for recursive non-terminal functions
+------------------------------------------------------------------------
+-- prototypes deleted; not required in Lua
+
+------------------------------------------------------------------------
+-- reads in next token
+-- * luaX:lex fills in ls.t.seminfo too, lookahead is handled
+------------------------------------------------------------------------
+function luaY:next(ls)
+  ls.lastline = ls.linenumber
+  if ls.lookahead.token ~= "TK_EOS" then  -- is there a look-ahead token?
+    ls.t.token = ls.lookahead.token  -- use this one
+    ls.t.seminfo = ls.lookahead.seminfo
+    ls.lookahead.token = "TK_EOS"  -- and discharge it
+  else
+    ls.t.token = luaX:lex(ls, ls.t)  -- read next token
+  end
+end
+
+------------------------------------------------------------------------
+-- peek at next token (single lookahead only)
+------------------------------------------------------------------------
+function luaY:lookahead(ls)
+  lua_assert(ls.lookahead.token == "TK_EOS")
+  ls.lookahead.token = luaX:lex(ls, ls.lookahead)
+end
+
+------------------------------------------------------------------------
+-- throws a syntax error if token expected is not there
+------------------------------------------------------------------------
+function luaY:error_expected(ls, token)
+  luaX:syntaxerror(ls,
+    string.format("`%s' expected", luaX:token2str(ls, token)))
+end
+
+------------------------------------------------------------------------
+-- tests for a token, returns outcome
+-- * return value changed to boolean
+------------------------------------------------------------------------
+function luaY:testnext(ls, c)
+  if ls.t.token == c then
+    self:next(ls)
+    return true
+  else
+    return false
+  end
+end
+
+------------------------------------------------------------------------
+-- check for existence of a token, throws error if not found
+------------------------------------------------------------------------
+function luaY:check(ls, c)
+  if not self:testnext(ls, c) then
+    self:error_expected(ls, c)
+  end
+end
+
+------------------------------------------------------------------------
+-- throws error if condition not matched
+------------------------------------------------------------------------
+function luaY:check_condition(ls, c, msg)
+  if not c then luaX:syntaxerror(ls, msg) end
+end
+
+------------------------------------------------------------------------
+-- verifies token conditions are met or else throw error
+------------------------------------------------------------------------
+function luaY:check_match(ls, what, who, where)
+  if not self:testnext(ls, what) then
+    if where == ls.linenumber then
+      self:error_expected(ls, what)
+    else
+      luaX:syntaxerror(ls, string.format(
+        "`%s' expected (to close `%s' at line %d)",
+        luaX:token2str(ls, what), luaX:token2str(ls, who), where))
+    end
+  end
+end
+
+------------------------------------------------------------------------
+-- expect that token is a name, return the name
+------------------------------------------------------------------------
+function luaY:str_checkname(ls)
+  self:check_condition(ls, ls.t.token == "TK_NAME", "<name> expected")
+  local ts = ls.t.seminfo
+  self:next(ls)
+  return ts
+end
+
+------------------------------------------------------------------------
+-- initialize a struct expdesc, expression description data structure
+------------------------------------------------------------------------
+function luaY:init_exp(e, k, i)
+  e.f, e.t = luaK.NO_JUMP, luaK.NO_JUMP
+  e.k = k
+  e.info = i
+end
+
+------------------------------------------------------------------------
+-- adds given string s in string pool, sets e as VK
+------------------------------------------------------------------------
+function luaY:codestring(ls, e, s)
+  self:init_exp(e, "VK", luaK:stringK(ls.fs, s))
+end
+
+------------------------------------------------------------------------
+-- consume a name token, adds it to string pool, sets e as VK
+------------------------------------------------------------------------
+function luaY:checkname(ls, e)
+  self:codestring(ls, e, self:str_checkname(ls))
+end
+
+------------------------------------------------------------------------
+-- returns local variable entry struct for a function
+------------------------------------------------------------------------
+function luaY:getlocvar(fs, i)
+  return fs.f.locvars[ fs.actvar[i] ]
+end
+
+------------------------------------------------------------------------
+-- creates struct entry for a local variable
+-- * used by new_localvar() only
+------------------------------------------------------------------------
+function luaY:registerlocalvar(ls, varname)
+  local fs = ls.fs
+  local f = fs.f
+  self:growvector(ls.L, f.locvars, fs.nlocvars, f.sizelocvars,
+                  nil, self.MAX_INT, "")
+  f.locvars[fs.nlocvars] = {} -- LocVar
+  f.locvars[fs.nlocvars].varname = varname
+  local nlocvars = fs.nlocvars
+  fs.nlocvars = fs.nlocvars + 1
+  return nlocvars
+end
+
+------------------------------------------------------------------------
+-- register a local variable, set in active variable list
+-- * used in new_localvarstr(), parlist(), fornum(), forlist(),
+--   localfunc(), localstat()
+------------------------------------------------------------------------
+function luaY:new_localvar(ls, name, n)
+  local fs = ls.fs
+  luaX:checklimit(ls, fs.nactvar + n + 1, self.MAXVARS, "local variables")
+  fs.actvar[fs.nactvar + n] = self:registerlocalvar(ls, name)
+end
+
+------------------------------------------------------------------------
+-- adds nvars number of new local variables, set debug information
+-- * used in create_local(), code_params(), forbody(), localfunc(),
+--   localstat()
+------------------------------------------------------------------------
+function luaY:adjustlocalvars(ls, nvars)
+  local fs = ls.fs
+  fs.nactvar = fs.nactvar + nvars
+  for i = 1, nvars do
+    self:getlocvar(fs, fs.nactvar - i).startpc = fs.pc
+  end
+end
+
+------------------------------------------------------------------------
+-- removes a number of locals, set debug information
+-- * used in leaveblock(), close_func()
+------------------------------------------------------------------------
+function luaY:removevars(ls, tolevel)
+  local fs = ls.fs
+  while fs.nactvar > tolevel do
+    fs.nactvar = fs.nactvar - 1
+    self:getlocvar(fs, fs.nactvar).endpc = fs.pc
+  end
+end
+
+------------------------------------------------------------------------
+-- creates a new local variable given a name and an offset from nactvar
+-- * used in fornum(), forlist() for loop variables; in create_local()
+------------------------------------------------------------------------
+function luaY:new_localvarstr(ls, name, n)
+  self:new_localvar(ls, name, n)
+end
+
+------------------------------------------------------------------------
+-- creates a single local variable and activates it
+-- * used only in code_params() for "arg", body() for "self"
+------------------------------------------------------------------------
+function luaY:create_local(ls, name)
+  self:new_localvarstr(ls, name, 0)
+  self:adjustlocalvars(ls, 1)
+end
+
+------------------------------------------------------------------------
+-- returns an existing upvalue index based on the given name, or
+-- creates a new upvalue struct entry and returns the new index
+-- * used only in singlevaraux()
+------------------------------------------------------------------------
+function luaY:indexupvalue(fs, name, v)
+  local f = fs.f
+  for i = 0, f.nups - 1 do
+    if fs.upvalues[i].k == v.k and fs.upvalues[i].info == v.info then
+      lua_assert(fs.f.upvalues[i] == name)
+      return i
+    end
+  end
+  -- new one
+  luaX:checklimit(fs.ls, f.nups + 1, self.MAXUPVALUES, "upvalues")
+  self:growvector(fs.L, fs.f.upvalues, f.nups, fs.f.sizeupvalues,
+                  nil, self.MAX_INT, "")
+  fs.f.upvalues[f.nups] = name
+  -- this is a partial copy; only k & info fields used
+  fs.upvalues[f.nups] = { k = v.k, info = v.info }
+  local nups = f.nups
+  f.nups = f.nups + 1
+  return nups
+end
+
+------------------------------------------------------------------------
+-- search the local variable namespace of the given fs for a match
+-- * used only in singlevaraux()
+------------------------------------------------------------------------
+function luaY:searchvar(fs, n)
+  for i = fs.nactvar - 1, 0, -1 do
+    if n == self:getlocvar(fs, i).varname then
+      return i
+    end
+  end
+  return -1  -- not found
+end
+
+------------------------------------------------------------------------
+-- * mark upvalue flags in function states up to a given level
+-- * used only in singlevaraux()
+------------------------------------------------------------------------
+function luaY:markupval(fs, level)
+  local bl = fs.bl
+  while bl and bl.nactvar > level do bl = bl.previous end
+  if bl then bl.upval = true end
+end
+
+------------------------------------------------------------------------
+-- handle locals, globals and upvalues and related processing
+-- * search mechanism is recursive, calls itself to search parents
+-- * used only in singlevar()
+------------------------------------------------------------------------
+function luaY:singlevaraux(fs, n, var, base)
+  if fs == nil then  -- no more levels?
+    self:init_exp(var, "VGLOBAL", luaP.NO_REG)  -- default is global variable
+  else
+    local v = self:searchvar(fs, n)  -- look up at current level
+    if v >= 0 then
+      self:init_exp(var, "VLOCAL", v)
+      if base == 0 then
+        self:markupval(fs, v)  -- local will be used as an upval
+      end
+    else  -- not found at current level; try upper one
+      self:singlevaraux(fs.prev, n, var, 0)
+      if var.k == "VGLOBAL" then
+        if base ~= 0 then
+          var.info = luaK:stringK(fs, n)  -- info points to global name
+        end
+      else  -- LOCAL or UPVAL
+        var.info = self:indexupvalue(fs, n, var)
+        var.k = "VUPVAL"  -- upvalue in this level
+      end
+    end--if v
+  end--if fs
+end
+
+------------------------------------------------------------------------
+-- consume a name token, creates a variable (global|local|upvalue)
+-- * used in prefixexp(), funcname()
+------------------------------------------------------------------------
+function luaY:singlevar(ls, var, base)
+  local varname = self:str_checkname(ls)
+  self:singlevaraux(ls.fs, varname, var, base)
+  return varname
+end
+
+------------------------------------------------------------------------
+-- adjust RHS to match LHS in an assignment
+-- * used in assignment(), forlist(), localstat()
+------------------------------------------------------------------------
+function luaY:adjust_assign(ls, nvars, nexps, e)
+  local fs = ls.fs
+  local extra = nvars - nexps
+  if e.k == "VCALL" then
+    extra = extra + 1  -- includes call itself
+    if extra <= 0 then extra = 0
+    else luaK:reserveregs(fs, extra - 1) end
+    luaK:setcallreturns(fs, e, extra)  -- call provides the difference
+  else
+    if e.k ~= "VVOID" then luaK:exp2nextreg(fs, e) end  -- close last expression
+    if extra > 0 then
+      local reg = fs.freereg
+      luaK:reserveregs(fs, extra)
+      luaK:_nil(fs, reg, extra)
+    end
+  end
+end
+
+------------------------------------------------------------------------
+-- perform initialization for a parameter list, adds arg if needed
+-- * used only in parlist()
+------------------------------------------------------------------------
+function luaY:code_params(ls, nparams, dots)
+  local fs = ls.fs
+  self:adjustlocalvars(ls, nparams)
+  luaX:checklimit(ls, fs.nactvar, self.MAXPARAMS, "parameters")
+  fs.f.numparams = fs.nactvar
+  fs.f.is_vararg = dots and 1 or 0
+  if dots then
+    self:create_local(ls, "arg")
+  end
+  luaK:reserveregs(fs, fs.nactvar)  -- reserve register for parameters
+end
+
+------------------------------------------------------------------------
+-- enters a code unit, initializes elements
+------------------------------------------------------------------------
+function luaY:enterblock(fs, bl, isbreakable)
+  bl.breaklist = luaK.NO_JUMP
+  bl.isbreakable = isbreakable
+  bl.nactvar = fs.nactvar
+  bl.upval = false
+  bl.previous = fs.bl
+  fs.bl = bl
+  lua_assert(fs.freereg == fs.nactvar)
+end
+
+------------------------------------------------------------------------
+-- leaves a code unit, close any upvalues
+------------------------------------------------------------------------
+function luaY:leaveblock(fs)
+  local bl = fs.bl
+  fs.bl = bl.previous
+  self:removevars(fs.ls, bl.nactvar)
+  if bl.upval then
+    luaK:codeABC(fs, "OP_CLOSE", bl.nactvar, 0, 0)
+  end
+  lua_assert(bl.nactvar == fs.nactvar)
+  fs.freereg = fs.nactvar  -- free registers
+  luaK:patchtohere(fs, bl.breaklist)
+end
+
+------------------------------------------------------------------------
+-- implement the instantiation of a function prototype, append list of
+-- upvalues after the instantiation instruction
+-- * used only in body()
+------------------------------------------------------------------------
+function luaY:pushclosure(ls, func, v)
+  local fs = ls.fs
+  local f = fs.f
+  self:growvector(ls.L, f.p, fs.np, f.sizep, nil,
+                  luaP.MAXARG_Bx, "constant table overflow")
+  f.p[fs.np] = func.f
+  fs.np = fs.np + 1
+  self:init_exp(v, "VRELOCABLE", luaK:codeABx(fs, "OP_CLOSURE", 0, fs.np - 1))
+  for i = 0, func.f.nups - 1 do
+    local o = (func.upvalues[i].k == "VLOCAL") and "OP_MOVE" or "OP_GETUPVAL"
+    luaK:codeABC(fs, o, 0, func.upvalues[i].info, 0)
+  end
+end
+
+------------------------------------------------------------------------
+-- initialize a new function prototype structure
+------------------------------------------------------------------------
+function luaY:newproto(L)
+  local f = {} -- Proto
+  -- luaC_link deleted
+  f.k = {}
+  f.sizek = 0
+  f.p = {}
+  f.sizep = 0
+  f.code = {}
+  f.sizecode = 0
+  f.sizelineinfo = 0
+  f.sizeupvalues = 0
+  f.nups = 0
+  f.upvalues = {}
+  f.numparams = 0
+  f.is_vararg = 0
+  f.maxstacksize = 0
+  f.lineinfo = {}
+  f.sizelocvars = 0
+  f.locvars = {}
+  f.lineDefined = 0
+  f.source = nil
+  return f
+end
+
+------------------------------------------------------------------------
+-- opening of a function
+------------------------------------------------------------------------
+function luaY:open_func(ls, fs)
+  local f = self:newproto(ls.L)
+  fs.f = f
+  fs.prev = ls.fs  -- linked list of funcstates
+  fs.ls = ls
+  fs.L = ls.L
+  ls.fs = fs
+  fs.pc = 0
+  fs.lasttarget = 0
+  fs.jpc = luaK.NO_JUMP
+  fs.freereg = 0
+  fs.nk = 0
+  fs.h = {}  -- constant table; was luaH_new call
+  fs.np = 0
+  fs.nlocvars = 0
+  fs.nactvar = 0
+  fs.bl = nil
+  f.source = ls.source
+  f.maxstacksize = 2  -- registers 0/1 are always valid
+end
+
+------------------------------------------------------------------------
+-- closing of a function
+------------------------------------------------------------------------
+function luaY:close_func(ls)
+  local L = ls.L
+  local fs = ls.fs
+  local f = fs.f
+  self:removevars(ls, 0)
+  luaK:codeABC(fs, "OP_RETURN", 0, 1, 0)  -- final return
+  -- luaM_reallocvector deleted for f->code, f->lineinfo, f->k, f->p,
+  -- f->locvars, f->upvalues; not required for Lua table arrays
+  f.sizecode = fs.pc
+  f.sizelineinfo = fs.pc
+  f.sizek = fs.nk
+  f.sizep = fs.np
+  f.sizelocvars = fs.nlocvars
+  f.sizeupvalues = f.nups
+  --lua_assert(luaG_checkcode(f))  -- currently not implemented
+  lua_assert(fs.bl == nil)
+  ls.fs = fs.prev
+end
+
+------------------------------------------------------------------------
+-- parser initialization function
+-- * note additional sub-tables needed for LexState, FuncState
+------------------------------------------------------------------------
+function luaY:parser(L, z, buff)
+  local lexstate = {}  -- LexState
+        lexstate.t = {}
+        lexstate.lookahead = {}
+  local funcstate = {}  -- FuncState
+        funcstate.upvalues = {}
+        funcstate.actvar = {}
+  lexstate.buff = buff
+  lexstate.nestlevel = 0
+  luaX:setinput(L, lexstate, z, z.name)
+  self:open_func(lexstate, funcstate)
+  self:next(lexstate)  -- read first token
+  self:chunk(lexstate)
+  self:check_condition(lexstate, lexstate.t.token == "TK_EOS", "<eof> expected")
+  self:close_func(lexstate)
+  lua_assert(funcstate.prev == nil)
+  lua_assert(funcstate.f.nups == 0)
+  lua_assert(lexstate.nestlevel == 0)
+  return funcstate.f
+end
+
+--[[--------------------------------------------------------------------
+-- GRAMMAR RULES
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- parse a function name suffix, for function call specifications
+-- * used in primaryexp(), funcname()
+------------------------------------------------------------------------
+function luaY:field(ls, v)
+  -- field -> ['.' | ':'] NAME
+  local fs = ls.fs
+  local key = {}  -- expdesc
+  luaK:exp2anyreg(fs, v)
+  self:next(ls)  -- skip the dot or colon
+  self:checkname(ls, key)
+  luaK:indexed(fs, v, key)
+end
+
+------------------------------------------------------------------------
+-- parse a table indexing suffix, for constructors, expressions
+-- * used in recfield(), primaryexp()
+------------------------------------------------------------------------
+function luaY:index(ls, v)
+  -- index -> '[' expr ']'
+  self:next(ls)  -- skip the '['
+  self:expr(ls, v)
+  luaK:exp2val(ls.fs, v)
+  self:check(ls, "]")
+end
+
+--[[--------------------------------------------------------------------
+-- Rules for Constructors
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- struct ConsControl:
+--   v  -- last list item read (table: struct expdesc)
+--   t  -- table descriptor (table: struct expdesc)
+--   nh  -- total number of 'record' elements
+--   na  -- total number of array elements
+--   tostore  -- number of array elements pending to be stored
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- parse a table record (hash) field
+-- * used in constructor()
+------------------------------------------------------------------------
+function luaY:recfield(ls, cc)
+  -- recfield -> (NAME | '['exp1']') = exp1
+  local fs = ls.fs
+  local reg = ls.fs.freereg
+  local key, val = {}, {}  -- expdesc
+  if ls.t.token == "TK_NAME" then
+    luaX:checklimit(ls, cc.nh, self.MAX_INT, "items in a constructor")
+    cc.nh = cc.nh + 1
+    self:checkname(ls, key)
+  else  -- ls->t.token == '['
+    self:index(ls, key)
+  end
+  self:check(ls, "=")
+  luaK:exp2RK(fs, key)
+  self:expr(ls, val)
+  luaK:codeABC(fs, "OP_SETTABLE", cc.t.info, luaK:exp2RK(fs, key),
+                                             luaK:exp2RK(fs, val))
+  fs.freereg = reg  -- free registers
+end
+
+------------------------------------------------------------------------
+-- emit a set list instruction if enough elements (LFIELDS_PER_FLUSH)
+-- * used in constructor()
+------------------------------------------------------------------------
+function luaY:closelistfield(fs, cc)
+  if cc.v.k == "VVOID" then return end  -- there is no list item
+  luaK:exp2nextreg(fs, cc.v)
+  cc.v.k = "VVOID"
+  if cc.tostore == luaP.LFIELDS_PER_FLUSH then
+    luaK:codeABx(fs, "OP_SETLIST", cc.t.info, cc.na - 1)  -- flush
+    cc.tostore = 0  -- no more items pending
+    fs.freereg = cc.t.info + 1  -- free registers
+  end
+end
+
+------------------------------------------------------------------------
+-- emit a set list instruction at the end of parsing list constructor
+-- * used in constructor()
+------------------------------------------------------------------------
+function luaY:lastlistfield(fs, cc)
+  if cc.tostore == 0 then return end
+  if cc.v.k == "VCALL" then
+    luaK:setcallreturns(fs, cc.v, self.LUA_MULTRET)
+    luaK:codeABx(fs, "OP_SETLISTO", cc.t.info, cc.na - 1)
+  else
+    if cc.v.k ~= "VVOID" then
+      luaK:exp2nextreg(fs, cc.v)
+    end
+    luaK:codeABx(fs, "OP_SETLIST", cc.t.info, cc.na - 1)
+  end
+  fs.freereg = cc.t.info + 1  -- free registers
+end
+
+------------------------------------------------------------------------
+-- parse a table list (array) field
+-- * used in constructor()
+------------------------------------------------------------------------
+function luaY:listfield(ls, cc)
+  self:expr(ls, cc.v)
+  luaX:checklimit(ls, cc.na, luaP.MAXARG_Bx, "items in a constructor")
+  cc.na = cc.na + 1
+  cc.tostore = cc.tostore + 1
+end
+
+------------------------------------------------------------------------
+-- parse a table constructor
+-- * used in funcargs(), simpleexp()
+------------------------------------------------------------------------
+function luaY:constructor(ls, t)
+  -- constructor -> '{' [ field { fieldsep field } [ fieldsep ] ] '}'
+  -- field -> recfield | listfield
+  -- fieldsep -> ',' | ';'
+  local fs = ls.fs
+  local line = ls.linenumber
+  local pc = luaK:codeABC(fs, "OP_NEWTABLE", 0, 0, 0)
+  local cc = {}  -- ConsControl
+        cc.v = {}
+  cc.na, cc.nh, cc.tostore = 0, 0, 0
+  cc.t = t
+  self:init_exp(t, "VRELOCABLE", pc)
+  self:init_exp(cc.v, "VVOID", 0)  -- no value (yet)
+  luaK:exp2nextreg(ls.fs, t)  -- fix it at stack top (for gc)
+  self:check(ls, "{")
+  repeat
+    lua_assert(cc.v.k == "VVOID" or cc.tostore > 0)
+    self:testnext(ls, ";")  -- compatibility only
+    if ls.t.token == "}" then break end
+    self:closelistfield(fs, cc)
+    local c = ls.t.token
+    if c == "TK_NAME" then  -- may be listfields or recfields
+      self:lookahead(ls)
+      if ls.lookahead.token ~= "=" then  -- expression?
+        self:listfield(ls, cc)
+      else
+        self:recfield(ls, cc)
+      end
+    elseif c == "[" then  -- constructor_item -> recfield
+      self:recfield(ls, cc)
+    else  -- constructor_part -> listfield
+      self:listfield(ls, cc)
+    end
+  until not self:testnext(ls, ",") and not self:testnext(ls, ";")
+  self:check_match(ls, "}", "{", line)
+  self:lastlistfield(fs, cc)
+  luaP:SETARG_B(fs.f.code[pc], self:int2fb(cc.na)) -- set initial array size
+  luaP:SETARG_C(fs.f.code[pc], self:log2(cc.nh) + 1)  -- set initial table size
+end
+
+------------------------------------------------------------------------
+-- parse the arguments (parameters) of a function declaration
+-- * used in body()
+------------------------------------------------------------------------
+function luaY:parlist(ls)
+  -- parlist -> [ param { ',' param } ]
+  local nparams = 0
+  local dots = false
+  if ls.t.token ~= ")" then  -- is 'parlist' not empty?
+    repeat
+      local c = ls.t.token
+      if c == "TK_DOTS" then
+        dots = true
+        self:next(ls)
+      elseif c == "TK_NAME" then
+        self:new_localvar(ls, self:str_checkname(ls), nparams)
+        nparams = nparams + 1
+      else
+        luaX:syntaxerror(ls, "<name> or `...' expected")
+      end
+    until dots or not self:testnext(ls, ",")
+  end
+  self:code_params(ls, nparams, dots)
+end
+
+------------------------------------------------------------------------
+-- parse function declaration body
+-- * used in simpleexp(), localfunc(), funcstat()
+------------------------------------------------------------------------
+function luaY:body(ls, e, needself, line)
+  -- body ->  '(' parlist ')' chunk END
+  local new_fs = {}  -- FuncState
+        new_fs.upvalues = {}
+        new_fs.actvar = {}
+  self:open_func(ls, new_fs)
+  new_fs.f.lineDefined = line
+  self:check(ls, "(")
+  if needself then
+    self:create_local(ls, "self")
+  end
+  self:parlist(ls)
+  self:check(ls, ")")
+  self:chunk(ls)
+  self:check_match(ls, "TK_END", "TK_FUNCTION", line)
+  self:close_func(ls)
+  self:pushclosure(ls, new_fs, e)
+end
+
+------------------------------------------------------------------------
+-- parse a list of comma-separated expressions
+-- * used is multiple locations
+------------------------------------------------------------------------
+function luaY:explist1(ls, v)
+  -- explist1 -> expr { ',' expr }
+  local n = 1  -- at least one expression
+  self:expr(ls, v)
+  while self:testnext(ls, ",") do
+    luaK:exp2nextreg(ls.fs, v)
+    self:expr(ls, v)
+    n = n + 1
+  end
+  return n
+end
+
+------------------------------------------------------------------------
+-- parse the parameters of a function call
+-- * contrast with parlist(), used in function declarations
+-- * used in primaryexp()
+------------------------------------------------------------------------
+function luaY:funcargs(ls, f)
+  local fs = ls.fs
+  local args = {}  -- expdesc
+  local nparams
+  local line = ls.linenumber
+  local c = ls.t.token
+  if c == "(" then  -- funcargs -> '(' [ explist1 ] ')'
+    if line ~= ls.lastline then
+      luaX:syntaxerror(ls, "ambiguous syntax (function call x new statement)")
+    end
+    self:next(ls)
+    if ls.t.token == ")" then  -- arg list is empty?
+      args.k = "VVOID"
+    else
+      self:explist1(ls, args)
+      luaK:setcallreturns(fs, args, self.LUA_MULTRET)
+    end
+    self:check_match(ls, ")", "(", line)
+  elseif c == "{" then  -- funcargs -> constructor
+    self:constructor(ls, args)
+  elseif c == "TK_STRING" then  -- funcargs -> STRING
+    self:codestring(ls, args, ls.t.seminfo)
+    self:next(ls)  -- must use 'seminfo' before 'next'
+  else
+    luaX:syntaxerror(ls, "function arguments expected")
+    return
+  end
+  lua_assert(f.k == "VNONRELOC")
+  local base = f.info  -- base register for call
+  if args.k == "VCALL" then
+    nparams = self.LUA_MULTRET  -- open call
+  else
+    if args.k ~= "VVOID" then
+      luaK:exp2nextreg(fs, args)  -- close last argument
+    end
+    nparams = fs.freereg - (base + 1)
+  end
+  self:init_exp(f, "VCALL", luaK:codeABC(fs, "OP_CALL", base, nparams + 1, 2))
+  luaK:fixline(fs, line)
+  fs.freereg = base + 1  -- call remove function and arguments and leaves
+                         -- (unless changed) one result
+end
+
+--[[--------------------------------------------------------------------
+-- Expression parsing
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- parses an expression in parentheses or a single variable
+-- * used in primaryexp()
+------------------------------------------------------------------------
+function luaY:prefixexp(ls, v)
+  -- prefixexp -> NAME | '(' expr ')'
+  local c = ls.t.token
+  if c == "(" then
+    local line = ls.linenumber
+    self:next(ls)
+    self:expr(ls, v)
+    self:check_match(ls, ")", "(", line)
+    luaK:dischargevars(ls.fs, v)
+  elseif c == "TK_NAME" then
+    self:singlevar(ls, v, 1)
+  -- LUA_COMPATUPSYNTAX
+--[[
+  elseif c == "%" then  -- for compatibility only
+    local line = ls.linenumber
+    self:next(ls)  -- skip '%'
+    local varname = self:singlevar(ls, v, 1)
+    if v.k ~= "VUPVAL" then
+      luaX:errorline(ls, "global upvalues are obsolete", varname, line)
+    end
+--]]
+  else
+    luaX:syntaxerror(ls, "unexpected symbol")
+  end--if c
+  return
+end
+
+------------------------------------------------------------------------
+-- parses a prefixexp (an expression in parentheses or a single variable)
+-- or a function call specification
+-- * used in simpleexp(), assignment(), exprstat()
+------------------------------------------------------------------------
+function luaY:primaryexp(ls, v)
+  -- primaryexp ->
+  --    prefixexp { '.' NAME | '[' exp ']' | ':' NAME funcargs | funcargs }
+  local fs = ls.fs
+  self:prefixexp(ls, v)
+  while true do
+    local c = ls.t.token
+    if c == "." then  -- field
+      self:field(ls, v)
+    elseif c == "[" then  -- '[' exp1 ']'
+      local key = {}  -- expdesc
+      luaK:exp2anyreg(fs, v)
+      self:index(ls, key)
+      luaK:indexed(fs, v, key)
+    elseif c == ":" then  -- ':' NAME funcargs
+      local key = {}  -- expdesc
+      self:next(ls)
+      self:checkname(ls, key)
+      luaK:_self(fs, v, key)
+      self:funcargs(ls, v)
+    elseif c == "(" or c == "TK_STRING" or c == "{" then  -- funcargs
+      luaK:exp2nextreg(fs, v)
+      self:funcargs(ls, v)
+    else
+      return
+    end--if c
+  end--while
+end
+
+------------------------------------------------------------------------
+-- parses general expression types, constants handled here
+-- * used in subexpr()
+------------------------------------------------------------------------
+function luaY:simpleexp(ls, v)
+  -- simpleexp -> NUMBER | STRING | NIL | TRUE | FALSE | constructor
+  --           | FUNCTION body | primaryexp
+  local c = ls.t.token
+  if c == "TK_NUMBER" then
+    self:init_exp(v, "VK", luaK:numberK(ls.fs, ls.t.seminfo))
+    self:next(ls)  -- must use 'seminfo' before 'next'
+  elseif c == "TK_STRING" then
+    self:codestring(ls, v, ls.t.seminfo)
+    self:next(ls)  -- must use 'seminfo' before 'next'
+  elseif c == "TK_NIL" then
+    self:init_exp(v, "VNIL", 0)
+    self:next(ls)
+  elseif c == "TK_TRUE" then
+    self:init_exp(v, "VTRUE", 0)
+    self:next(ls)
+  elseif c == "TK_FALSE" then
+    self:init_exp(v, "VFALSE", 0)
+    self:next(ls)
+  elseif c == "{" then  -- constructor
+    self:constructor(ls, v)
+  elseif c == "TK_FUNCTION" then
+    self:next(ls)
+    self:body(ls, v, false, ls.linenumber)
+  else
+    self:primaryexp(ls, v)
+  end--if c
+end
+
+------------------------------------------------------------------------
+-- Translates unary operators tokens if found, otherwise returns
+-- OPR_NOUNOPR. getunopr() and getbinopr() are used in subexpr().
+-- * used in subexpr()
+------------------------------------------------------------------------
+function luaY:getunopr(op)
+  if op == "TK_NOT" then
+    return "OPR_NOT"
+  elseif op == "-" then
+    return "OPR_MINUS"
+  else
+    return "OPR_NOUNOPR"
+  end
+end
+
+------------------------------------------------------------------------
+-- Translates binary operator tokens if found, otherwise returns
+-- OPR_NOBINOPR. Code generation uses OPR_* style tokens.
+-- * used in subexpr()
+------------------------------------------------------------------------
+luaY.getbinopr_table = {
+  ["+"] = "OPR_ADD",
+  ["-"] = "OPR_SUB",
+  ["*"] = "OPR_MULT",
+  ["/"] = "OPR_DIV",
+  ["^"] = "OPR_POW",
+  ["TK_CONCAT"] = "OPR_CONCAT",
+  ["TK_NE"] = "OPR_NE",
+  ["TK_EQ"] = "OPR_EQ",
+  ["<"] = "OPR_LT",
+  ["TK_LE"] = "OPR_LE",
+  [">"] = "OPR_GT",
+  ["TK_GE"] = "OPR_GE",
+  ["TK_AND"] = "OPR_AND",
+  ["TK_OR"] = "OPR_OR",
+}
+function luaY:getbinopr(op)
+  local opr = self.getbinopr_table[op]
+  if opr then return opr else return "OPR_NOBINOPR" end
+end
+
+------------------------------------------------------------------------
+-- the following priority table consists of pairs of left/right values
+-- for binary operators (was a static const struct); grep for ORDER OPR
+------------------------------------------------------------------------
+luaY.priority = {
+  {6, 6}, {6, 6}, {7, 7}, {7, 7},  -- arithmetic
+  {10, 9}, {5, 4},                 -- power and concat (right associative)
+  {3, 3}, {3, 3},                  -- equality
+  {3, 3}, {3, 3}, {3, 3}, {3, 3},  -- order
+  {2, 2}, {1, 1}                   -- logical (and/or)
+}
+
+luaY.UNARY_PRIORITY = 8  -- priority for unary operators
+
+------------------------------------------------------------------------
+-- subexpr -> (simpleexp | unop subexpr) { binop subexpr }
+-- where 'binop' is any binary operator with a priority higher than 'limit'
+------------------------------------------------------------------------
+
+------------------------------------------------------------------------
+-- * for priority lookups with self.priority[], 1=left and 2=right
+--
+-- Parse subexpressions. Includes handling of unary operators and binary
+-- operators. A subexpr is given the rhs priority level of the operator
+-- immediately left of it, if any (limit is -1 if none,) and if a binop
+-- is found, limit is compared with the lhs priority level of the binop
+-- in order to determine which executes first.
+--
+-- * recursively called
+-- * used in expr()
+------------------------------------------------------------------------
+function luaY:subexpr(ls, v, limit)
+  self:enterlevel(ls)
+  local uop = self:getunopr(ls.t.token)
+  if uop ~= "OPR_NOUNOPR" then
+    self:next(ls)
+    self:subexpr(ls, v, self.UNARY_PRIORITY)
+    luaK:prefix(ls.fs, uop, v)
+  else
+    self:simpleexp(ls, v)
+  end
+  -- expand while operators have priorities higher than 'limit'
+  local op = self:getbinopr(ls.t.token)
+  while op ~= "OPR_NOBINOPR" and self.priority[luaK.BinOpr[op] + 1][1] > limit do
+    local v2 = {}  -- expdesc
+    self:next(ls)
+    luaK:infix(ls.fs, op, v)
+    -- read sub-expression with higher priority
+    local nextop = self:subexpr(ls, v2, self.priority[luaK.BinOpr[op] + 1][2])
+    luaK:posfix(ls.fs, op, v, v2)
+    op = nextop
+  end
+  self:leavelevel(ls)
+  return op  -- return first untreated operator
+end
+
+------------------------------------------------------------------------
+-- Expression parsing starts here. Function subexpr is entered with the
+-- left operator (which is non-existent) priority of -1, which is lower
+-- than all actual operators. Expr information is returned in parm v.
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaY:expr(ls, v)
+  self:subexpr(ls, v, -1)
+end
+
+--[[--------------------------------------------------------------------
+-- Rules for Statements
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- checks next token, used as a look-ahead
+-- * returns boolean instead of 0|1
+-- * used in retstat(), chunk()
+------------------------------------------------------------------------
+function luaY:block_follow(token)
+  if token == "TK_ELSE" or token == "TK_ELSEIF" or token == "TK_END"
+     or token == "TK_UNTIL" or token == "TK_EOS" then
+    return true
+  else
+    return false
+  end
+end
+
+------------------------------------------------------------------------
+-- parse a code block or unit
+-- * used in multiple functions
+------------------------------------------------------------------------
+function luaY:block(ls)
+  -- block -> chunk
+  local fs = ls.fs
+  local bl = {}  -- BlockCnt
+  self:enterblock(fs, bl, false)
+  self:chunk(ls)
+  lua_assert(bl.breaklist == luaK.NO_JUMP)
+  self:leaveblock(fs)
+end
+
+------------------------------------------------------------------------
+-- structure to chain all variables in the left-hand side of an
+-- assignment
+------------------------------------------------------------------------
+--[[--------------------------------------------------------------------
+-- struct LHS_assign:
+--   prev  -- (table: struct LHS_assign)
+--   v  -- variable (global, local, upvalue, or indexed) (table: expdesc)
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- check whether, in an assignment to a local variable, the local variable
+-- is needed in a previous assignment (to a table). If so, save original
+-- local value in a safe place and use this safe copy in the previous
+-- assignment.
+-- * used in assignment()
+------------------------------------------------------------------------
+function luaY:check_conflict(ls, lh, v)
+  local fs = ls.fs
+  local extra = fs.freereg  -- eventual position to save local variable
+  local conflict = false
+  while lh do
+    if lh.v.k == "VINDEXED" then
+      if lh.v.info == v.info then  -- conflict?
+        conflict = true
+        lh.v.info = extra  -- previous assignment will use safe copy
+      end
+      if lh.v.aux == v.info then  -- conflict?
+        conflict = true
+        lh.v.aux = extra  -- previous assignment will use safe copy
+      end
+    end
+    lh = lh.prev
+  end
+  if conflict then
+    luaK:codeABC(fs, "OP_MOVE", fs.freereg, v.info, 0)  -- make copy
+    luaK:reserveregs(fs, 1)
+  end
+end
+
+------------------------------------------------------------------------
+-- parse a variable assignment sequence
+-- * recursively called
+-- * used in exprstat()
+------------------------------------------------------------------------
+function luaY:assignment(ls, lh, nvars)
+  local e = {}  -- expdesc
+  -- test was: VLOCAL <= lh->v.k && lh->v.k <= VINDEXED
+  local c = lh.v.k
+  self:check_condition(ls, c == "VLOCAL" or c == "VUPVAL" or c == "VGLOBAL"
+                       or c == "VINDEXED", "syntax error")
+  if self:testnext(ls, ",") then  -- assignment -> ',' primaryexp assignment
+    local nv = {}  -- LHS_assign
+          nv.v = {}
+    nv.prev = lh
+    self:primaryexp(ls, nv.v)
+    if nv.v.k == "VLOCAL" then
+      self:check_conflict(ls, lh, nv.v)
+    end
+    self:assignment(ls, nv, nvars + 1)
+  else  -- assignment -> '=' explist1
+    self:check(ls, "=")
+    local nexps = self:explist1(ls, e)
+    if nexps ~= nvars then
+      self:adjust_assign(ls, nvars, nexps, e)
+      if nexps > nvars then
+        ls.fs.freereg = ls.fs.freereg - (nexps - nvars)  -- remove extra values
+      end
+    else
+      luaK:setcallreturns(ls.fs, e, 1)  -- close last expression
+      luaK:storevar(ls.fs, lh.v, e)
+      return  -- avoid default
+    end
+  end
+  self:init_exp(e, "VNONRELOC", ls.fs.freereg - 1)  -- default assignment
+  luaK:storevar(ls.fs, lh.v, e)
+end
+
+------------------------------------------------------------------------
+-- parse condition in a repeat statement or an if control structure
+-- * used in repeatstat(), test_then_block()
+------------------------------------------------------------------------
+function luaY:cond(ls, v)
+  -- cond -> exp
+  self:expr(ls, v)  -- read condition
+  if v.k == "VNIL" then v.k = "VFALSE" end  -- 'falses' are all equal here
+  luaK:goiftrue(ls.fs, v)
+  luaK:patchtohere(ls.fs, v.t)
+end
+
+------------------------------------------------------------------------
+-- The while statement optimizes its code by coding the condition
+-- after its body (and thus avoiding one jump in the loop).
+------------------------------------------------------------------------
+
+------------------------------------------------------------------------
+-- maximum size of expressions for optimizing 'while' code
+------------------------------------------------------------------------
+if not luaY.MAXEXPWHILE then
+  luaY.MAXEXPWHILE = 100
+end
+
+------------------------------------------------------------------------
+-- the call 'luaK_goiffalse' may grow the size of an expression by
+-- at most this:
+------------------------------------------------------------------------
+luaY.EXTRAEXP = 5
+
+------------------------------------------------------------------------
+-- parse a while-do control structure, body processed by block()
+-- * with dynamic array sizes, MAXEXPWHILE + EXTRAEXP limits imposed by
+--   the function's implementation can be removed
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:whilestat(ls, line)
+  -- whilestat -> WHILE cond DO block END
+  -- array size of [MAXEXPWHILE + EXTRAEXP] no longer required
+  local codeexp = {}  -- Instruction
+  local fs = ls.fs
+  local v = {}  -- expdesc
+  local bl = {}  -- BlockCnt
+  self:next(ls)  -- skip WHILE
+  local whileinit = luaK:jump(fs)  -- jump to condition (which will be moved)
+  local expinit = luaK:getlabel(fs)
+  self:expr(ls, v)  -- parse condition
+  if v.k == "VK" then v.k = "VTRUE" end  -- 'trues' are all equal here
+  local lineexp = ls.linenumber
+  luaK:goiffalse(fs, v)
+  v.f = luaK:concat(fs, v.f, fs.jpc)
+  fs.jpc = luaK.NO_JUMP
+  local sizeexp = fs.pc - expinit  -- size of expression code
+  if sizeexp > self.MAXEXPWHILE then
+    luaX:syntaxerror(ls, "`while' condition too complex")
+  end
+  for i = 0, sizeexp - 1 do  -- save 'exp' code
+    codeexp[i] = fs.f.code[expinit + i]
+  end
+  fs.pc = expinit  -- remove 'exp' code
+  self:enterblock(fs, bl, true)
+  self:check(ls, "TK_DO")
+  local blockinit = luaK:getlabel(fs)
+  self:block(ls)
+  luaK:patchtohere(fs, whileinit)  -- initial jump jumps to here
+  -- move 'exp' back to code
+  if v.t ~= luaK.NO_JUMP then v.t = v.t + fs.pc - expinit end
+  if v.f ~= luaK.NO_JUMP then v.f = v.f + fs.pc - expinit end
+  for i = 0, sizeexp - 1 do
+    luaK:code(fs, codeexp[i], lineexp)
+  end
+  self:check_match(ls, "TK_END", "TK_WHILE", line)
+  self:leaveblock(fs)
+  luaK:patchlist(fs, v.t, blockinit)  -- true conditions go back to loop
+  luaK:patchtohere(fs, v.f)  -- false conditions finish the loop
+end
+
+------------------------------------------------------------------------
+-- parse a repeat-until control structure, body parsed by block()
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:repeatstat(ls, line)
+  -- repeatstat -> REPEAT block UNTIL cond
+  local fs = ls.fs
+  local repeat_init = luaK:getlabel(fs)
+  local v = {}  -- expdesc
+  local bl = {}  -- BlockCnt
+  self:enterblock(fs, bl, true)
+  self:next(ls)
+  self:block(ls)
+  self:check_match(ls, "TK_UNTIL", "TK_REPEAT", line)
+  self:cond(ls, v)
+  luaK:patchlist(fs, v.f, repeat_init)
+  self:leaveblock(fs)
+end
+
+------------------------------------------------------------------------
+-- parse the single expressions needed in numerical for loops
+-- * used in fornum()
+------------------------------------------------------------------------
+function luaY:exp1(ls)
+  local e = {}  -- expdesc
+  self:expr(ls, e)
+  local k = e.k
+  luaK:exp2nextreg(ls.fs, e)
+  return k
+end
+
+------------------------------------------------------------------------
+-- parse a for loop body for both versions of the for loop
+-- * used in fornum(), forlist()
+------------------------------------------------------------------------
+function luaY:forbody(ls, base, line, nvars, isnum)
+  local bl = {}  -- BlockCnt
+  local fs = ls.fs
+  self:adjustlocalvars(ls, nvars)  -- scope for all variables
+  self:check(ls, "TK_DO")
+  self:enterblock(fs, bl, true)  -- loop block
+  local prep = luaK:getlabel(fs)
+  self:block(ls)
+  luaK:patchtohere(fs, prep - 1)
+  local endfor = isnum and luaK:codeAsBx(fs, "OP_FORLOOP", base, luaK.NO_JUMP)
+                 or luaK:codeABC(fs, "OP_TFORLOOP", base, 0, nvars - 3)
+  luaK:fixline(fs, line)  -- pretend that 'OP_FOR' starts the loop
+  luaK:patchlist(fs, isnum and endfor or luaK:jump(fs), prep)
+  self:leaveblock(fs)
+end
+
+------------------------------------------------------------------------
+-- parse a numerical for loop, calls forbody()
+-- * used in forstat()
+------------------------------------------------------------------------
+function luaY:fornum(ls, varname, line)
+  -- fornum -> NAME = exp1,exp1[,exp1] DO body
+  local fs = ls.fs
+  local base = fs.freereg
+  self:new_localvar(ls, varname, 0)
+  self:new_localvarstr(ls, "(for limit)", 1)
+  self:new_localvarstr(ls, "(for step)", 2)
+  self:check(ls, "=")
+  self:exp1(ls)  -- initial value
+  self:check(ls, ",")
+  self:exp1(ls)  -- limit
+  if self:testnext(ls, ",") then
+    self:exp1(ls)  -- optional step
+  else  -- default step = 1
+    luaK:codeABx(fs, "OP_LOADK", fs.freereg, luaK:numberK(fs, 1))
+    luaK:reserveregs(fs, 1)
+  end
+  luaK:codeABC(fs, "OP_SUB", fs.freereg - 3, fs.freereg - 3, fs.freereg - 1)
+  luaK:jump(fs)
+  self:forbody(ls, base, line, 3, true)
+end
+
+------------------------------------------------------------------------
+-- parse a generic for loop, calls forbody()
+-- * used in forstat()
+------------------------------------------------------------------------
+function luaY:forlist(ls, indexname)
+  -- forlist -> NAME {,NAME} IN explist1 DO body
+  local fs = ls.fs
+  local e = {}  -- expdesc
+  local nvars = 0
+  local base = fs.freereg
+  self:new_localvarstr(ls, "(for generator)", nvars)
+  nvars = nvars + 1
+  self:new_localvarstr(ls, "(for state)", nvars)
+  nvars = nvars + 1
+  self:new_localvar(ls, indexname, nvars)
+  nvars = nvars + 1
+  while self:testnext(ls, ",") do
+    self:new_localvar(ls, self:str_checkname(ls), nvars)
+    nvars = nvars + 1
+  end
+  self:check(ls, "TK_IN")
+  local line = ls.linenumber
+  self:adjust_assign(ls, nvars, self:explist1(ls, e), e)
+  luaK:checkstack(fs, 3)  -- extra space to call generator
+  luaK:codeAsBx(fs, "OP_TFORPREP", base, luaK.NO_JUMP)
+  self:forbody(ls, base, line, nvars, false)
+end
+
+------------------------------------------------------------------------
+-- initial parsing for a for loop, calls fornum() or forlist()
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:forstat(ls, line)
+  -- forstat -> fornum | forlist
+  local fs = ls.fs
+  local bl = {}  -- BlockCnt
+  self:enterblock(fs, bl, false)  -- block to control variable scope
+  self:next(ls)  -- skip 'for'
+  local varname = self:str_checkname(ls)  -- first variable name
+  local c = ls.t.token
+  if c == "=" then
+    self:fornum(ls, varname, line)
+  elseif c == "," or c == "TK_IN" then
+    self:forlist(ls, varname)
+  else
+    luaX:syntaxerror(ls, "`=' or `in' expected")
+  end
+  self:check_match(ls, "TK_END", "TK_FOR", line)
+  self:leaveblock(fs)
+end
+
+------------------------------------------------------------------------
+-- parse part of an if control structure, including the condition
+-- * used in ifstat()
+------------------------------------------------------------------------
+function luaY:test_then_block(ls, v)
+  -- test_then_block -> [IF | ELSEIF] cond THEN block
+  self:next(ls)  -- skip IF or ELSEIF
+  self:cond(ls, v)
+  self:check(ls, "TK_THEN")
+  self:block(ls)  -- 'then' part
+end
+
+------------------------------------------------------------------------
+-- parse an if control structure
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:ifstat(ls, line)
+  -- ifstat -> IF cond THEN block {ELSEIF cond THEN block} [ELSE block] END
+  local fs = ls.fs
+  local v = {}  -- expdesc
+  local escapelist = luaK.NO_JUMP
+  self:test_then_block(ls, v)  -- IF cond THEN block
+  while ls.t.token == "TK_ELSEIF" do
+    escapelist = luaK:concat(fs, escapelist, luaK:jump(fs))
+    luaK:patchtohere(fs, v.f)
+    self:test_then_block(ls, v)  -- ELSEIF cond THEN block
+  end
+  if ls.t.token == "TK_ELSE" then
+    escapelist = luaK:concat(fs, escapelist, luaK:jump(fs))
+    luaK:patchtohere(fs, v.f)
+    self:next(ls)  -- skip ELSE (after patch, for correct line info)
+    self:block(ls)  -- 'else' part
+  else
+    escapelist = luaK:concat(fs, escapelist, v.f)
+  end
+  luaK:patchtohere(fs, escapelist)
+  self:check_match(ls, "TK_END", "TK_IF", line)
+end
+
+------------------------------------------------------------------------
+-- parse a local function statement
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:localfunc(ls)
+  local v, b = {}, {}  -- expdesc
+  local fs = ls.fs
+  self:new_localvar(ls, self:str_checkname(ls), 0)
+  self:init_exp(v, "VLOCAL", fs.freereg)
+  luaK:reserveregs(fs, 1)
+  self:adjustlocalvars(ls, 1)
+  self:body(ls, b, false, ls.linenumber)
+  luaK:storevar(fs, v, b)
+  -- debug information will only see the variable after this point!
+  self:getlocvar(fs, fs.nactvar - 1).startpc = fs.pc
+end
+
+------------------------------------------------------------------------
+-- parse a local variable declaration statement
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:localstat(ls)
+  -- stat -> LOCAL NAME {',' NAME} ['=' explist1]
+  local nvars = 0
+  local nexps
+  local e = {}  -- expdesc
+  repeat
+    self:new_localvar(ls, self:str_checkname(ls), nvars)
+    nvars = nvars + 1
+  until not self:testnext(ls, ",")
+  if self:testnext(ls, "=") then
+    nexps = self:explist1(ls, e)
+  else
+    e.k = "VVOID"
+    nexps = 0
+  end
+  self:adjust_assign(ls, nvars, nexps, e)
+  self:adjustlocalvars(ls, nvars)
+end
+
+------------------------------------------------------------------------
+-- parse a function name specification
+-- * used in funcstat()
+------------------------------------------------------------------------
+function luaY:funcname(ls, v)
+  -- funcname -> NAME {field} [':' NAME]
+  local needself = false
+  self:singlevar(ls, v, 1)
+  while ls.t.token == "." do
+    self:field(ls, v)
+  end
+  if ls.t.token == ":" then
+    needself = true
+    self:field(ls, v)
+  end
+  return needself
+end
+
+------------------------------------------------------------------------
+-- parse a function statement
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:funcstat(ls, line)
+  -- funcstat -> FUNCTION funcname body
+  local v, b = {}, {}  -- expdesc
+  self:next(ls)  -- skip FUNCTION
+  local needself = self:funcname(ls, v)
+  self:body(ls, b, needself, line)
+  luaK:storevar(ls.fs, v, b)
+  luaK:fixline(ls.fs, line)  -- definition 'happens' in the first line
+end
+
+------------------------------------------------------------------------
+-- parse a function call with no returns or an assignment statement
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:exprstat(ls)
+  -- stat -> func | assignment
+  local fs = ls.fs
+  local v = {}  -- LHS_assign
+        v.v = {}
+  self:primaryexp(ls, v.v)
+  if v.v.k == "VCALL" then  -- stat -> func
+    luaK:setcallreturns(fs, v.v, 0)  -- call statement uses no results
+  else  -- stat -> assignment
+    v.prev = nil
+    self:assignment(ls, v, 1)
+  end
+end
+
+------------------------------------------------------------------------
+-- parse a return statement
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:retstat(ls)
+  -- stat -> RETURN explist
+  local fs = ls.fs
+  local e = {}  -- expdesc
+  local first, nret  -- registers with returned values
+  self:next(ls)  -- skip RETURN
+  if self:block_follow(ls.t.token) or ls.t.token == ";" then
+    first, nret = 0, 0  -- return no values
+  else
+    nret = self:explist1(ls, e)  -- optional return values
+    if e.k == "VCALL" then
+      luaK:setcallreturns(fs, e, self.LUA_MULTRET)
+      if nret == 1 then  -- tail call?
+        luaP:SET_OPCODE(luaK:getcode(fs, e), "OP_TAILCALL")
+        lua_assert(luaP:GETARG_A(luaK:getcode(fs, e)) == fs.nactvar)
+      end
+      first = fs.nactvar
+      nret = self.LUA_MULTRET  -- return all values
+    else
+      if nret == 1 then  -- only one single value?
+        first = luaK:exp2anyreg(fs, e)
+      else
+        luaK:exp2nextreg(fs, e)  -- values must go to the 'stack'
+        first = fs.nactvar  -- return all 'active' values
+        lua_assert(nret == fs.freereg - first)
+      end
+    end--if
+  end--if
+  luaK:codeABC(fs, "OP_RETURN", first, nret + 1, 0)
+end
+
+------------------------------------------------------------------------
+-- parse a break statement
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:breakstat(ls)
+  -- stat -> BREAK
+  local fs = ls.fs
+  local bl = fs.bl
+  local upval = false
+  self:next(ls)  -- skip BREAK
+  while bl and not bl.isbreakable do
+    if bl.upval then upval = true end
+    bl = bl.previous
+  end
+  if not bl then
+    luaX:syntaxerror(ls, "no loop to break")
+  end
+  if upval then
+    luaK:codeABC(fs, "OP_CLOSE", bl.nactvar, 0, 0)
+  end
+  bl.breaklist = luaK:concat(fs, bl.breaklist, luaK:jump(fs))
+end
+
+------------------------------------------------------------------------
+-- initial parsing for statements, calls a lot of functions
+-- * returns boolean instead of 0|1
+-- * used in chunk()
+------------------------------------------------------------------------
+function luaY:statement(ls)
+  local line = ls.linenumber  -- may be needed for error messages
+  local c = ls.t.token
+  if c == "TK_IF" then  -- stat -> ifstat
+    self:ifstat(ls, line)
+    return false
+  elseif c == "TK_WHILE" then  -- stat -> whilestat
+    self:whilestat(ls, line)
+    return false
+  elseif c == "TK_DO" then  -- stat -> DO block END
+    self:next(ls)  -- skip DO
+    self:block(ls)
+    self:check_match(ls, "TK_END", "TK_DO", line)
+    return false
+  elseif c == "TK_FOR" then  -- stat -> forstat
+    self:forstat(ls, line)
+    return false
+  elseif c == "TK_REPEAT" then  -- stat -> repeatstat
+    self:repeatstat(ls, line)
+    return false
+  elseif c == "TK_FUNCTION" then  -- stat -> funcstat
+    self:funcstat(ls, line)
+    return false
+  elseif c == "TK_LOCAL" then  -- stat -> localstat
+    self:next(ls)  -- skip LOCAL
+    if self:testnext(ls, "TK_FUNCTION") then  -- local function?
+      self:localfunc(ls)
+    else
+      self:localstat(ls)
+    end
+    return false
+  elseif c == "TK_RETURN" then  -- stat -> retstat
+    self:retstat(ls)
+    return true  -- must be last statement
+  elseif c == "TK_BREAK" then  -- stat -> breakstat
+    self:breakstat(ls)
+    return true  -- must be last statement
+  else
+    self:exprstat(ls)
+    return false  -- to avoid warnings
+  end--if c
+end
+
+------------------------------------------------------------------------
+-- parse a chunk, which consists of a bunch of statements
+-- * used in parser(), body(), block()
+------------------------------------------------------------------------
+function luaY:chunk(ls)
+  -- chunk -> { stat [';'] }
+  local islast = false
+  self:enterlevel(ls)
+  while not islast and not self:block_follow(ls.t.token) do
+    islast = self:statement(ls)
+    self:testnext(ls, ";")
+    lua_assert(ls.fs.freereg >= ls.fs.nactvar)
+    ls.fs.freereg = ls.fs.nactvar  -- free registers
+  end
+  self:leavelevel(ls)
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/luac.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/luac.lua
new file mode 100644
index 0000000..80cc4a5
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/luac.lua
@@ -0,0 +1,71 @@
+--[[--------------------------------------------------------------------
+
+  luac.lua
+  Primitive luac in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * based on luac.lua in the test directory of the 5.0.3 distribution
+-- * usage: lua luac.lua file.lua
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- load and initialize the required modules
+------------------------------------------------------------------------
+require("lzio.lua")
+require("llex.lua")
+require("lopcodes.lua")
+require("ldump.lua")
+require("lcode.lua")
+require("lparser.lua")
+
+luaX:init()  -- required by llex
+local LuaState = {}  -- dummy, not actually used, but retained since
+                     -- the intention is to complete a straight port
+
+------------------------------------------------------------------------
+-- interfacing to yueliang
+------------------------------------------------------------------------
+
+-- currently asserts are enabled because the codebase hasn't been tested
+-- much (if you don't want asserts, just comment them out)
+function lua_assert(test)
+  if not test then error("assertion failed!") end
+end
+
+function yloadfile(filename)
+  -- luaZ:make_getF returns a file chunk reader
+  -- luaZ:init returns a zio input stream
+  local zio = luaZ:init(luaZ:make_getF(filename), nil, "@"..filename)
+  if not zio then return end
+  -- luaY:parser parses the input stream
+  -- func is the function prototype in tabular form; in C, func can
+  -- now be used directly by the VM, this can't be done in Lua
+  local func = luaY:parser(LuaState, zio, nil)
+  -- luaU:make_setS returns a string chunk writer
+  local writer, buff = luaU:make_setS()
+  -- luaU:dump builds a binary chunk
+  luaU:dump(LuaState, func, writer, buff)
+  -- a string.dump equivalent in returned
+  return buff.data
+end
+
+------------------------------------------------------------------------
+-- command line interface
+------------------------------------------------------------------------
+
+assert(arg[1] ~= nil and arg[2] == nil, "usage: lua luac.lua file.lua")
+local f = assert(io.open("luac.out","wb"))
+f:write(assert(yloadfile(arg[1])))
+io.close(f)
+
+--end
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/lzio.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/lzio.lua
new file mode 100644
index 0000000..7b98246
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/lzio.lua
@@ -0,0 +1,120 @@
+--[[--------------------------------------------------------------------
+
+  lzio.lua
+  Lua 5 buffered streams in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * EOZ is implemented as a string, "EOZ"
+-- * Format of z structure (ZIO)
+--     z.n       -- bytes still unread
+--     z.p       -- last read position in buffer
+--     z.reader  -- chunk reader function
+--     z.data    -- additional data
+--     z.name    -- name of stream
+-- * Current position, p, is now last read index instead of a pointer
+--
+-- Not implemented:
+-- * luaZ_lookahead: used only in lapi.c:lua_load to detect binary chunk
+-- * luaZ_read: used only in lundump.c:ezread to read +1 bytes
+-- * luaZ_openspace: dropped; let Lua handle buffers as strings
+-- * luaZ buffer macros: dropped; unused for now
+--
+-- Alternatives:
+-- * zname(z) is z.name
+--
+-- Added:
+-- (both of the following are vaguely adapted from lauxlib.c)
+-- * luaZ:make_getS: create Chunkreader from a string
+-- * luaZ:make_getF: create Chunkreader that reads from a file
+----------------------------------------------------------------------]]
+
+luaZ = {}
+
+------------------------------------------------------------------------
+-- * reader() should return a string, or nil if nothing else to parse.
+--   Unlike Chunkreaders, there are no arguments like additional data
+-- * Chunkreaders are handled in lauxlib.h, see luaL_load(file|buffer)
+-- * Original Chunkreader:
+--   const char * (*lua_Chunkreader) (lua_State *L, void *ud, size_t *sz);
+-- * This Lua chunk reader implementation:
+--   returns string or nil, no arguments to function
+------------------------------------------------------------------------
+
+------------------------------------------------------------------------
+-- create a chunk reader from a source string
+------------------------------------------------------------------------
+function luaZ:make_getS(buff)
+  local b = buff
+  return function() -- chunk reader anonymous function here
+    if not b then return nil end
+    local data = b
+    b = nil
+    return data
+  end
+end
+
+------------------------------------------------------------------------
+-- create a chunk reader from a source file
+------------------------------------------------------------------------
+function luaZ:make_getF(filename)
+  local LUAL_BUFFERSIZE = 512
+  local h = io.open(filename, "r")
+  if not h then return nil end
+  return function() -- chunk reader anonymous function here
+    if not h or io.type(h) == "closed file" then return nil end
+    local buff = h:read(LUAL_BUFFERSIZE)
+    if not buff then h:close(); h = nil end
+    return buff
+  end
+end
+
+------------------------------------------------------------------------
+-- creates a zio input stream
+-- returns the ZIO structure, z
+------------------------------------------------------------------------
+function luaZ:init(reader, data, name)
+  if not reader then return end
+  local z = {}
+  z.reader = reader
+  z.data = data or ""
+  z.name = name
+  -- set up additional data for reading
+  if not data or data == "" then z.n = 0 else z.n = string.len(data) end
+  z.p = 0
+  return z
+end
+
+------------------------------------------------------------------------
+-- fill up input buffer
+------------------------------------------------------------------------
+function luaZ:fill(z)
+  local data = z.reader()
+  z.data = data
+  if not data or data == "" then return "EOZ" end
+  z.n = string.len(data) - 1
+  z.p = 1
+  return string.sub(data, 1, 1)
+end
+
+------------------------------------------------------------------------
+-- get next character from the input stream
+------------------------------------------------------------------------
+function luaZ:zgetc(z)
+  if z.n > 0 then
+    z.n = z.n - 1
+    z.p = z.p + 1
+    return string.sub(z.data, z.p, z.p)
+  else
+    return self:fill(z)
+  end
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/bench_llex.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/bench_llex.lua
new file mode 100644
index 0000000..0c9403e
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/bench_llex.lua
@@ -0,0 +1,99 @@
+--[[--------------------------------------------------------------------
+
+  bench_llex.lua
+  Benchmark test for llex.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+require("../lzio")
+require("../llex")
+luaX:init()
+
+------------------------------------------------------------------------
+-- load in a standard set of sample files
+-- * file set is 5.0.3 front end set sans luac.lua
+------------------------------------------------------------------------
+
+local fileset, totalsize = {}, 0
+for fn in string.gfind([[
+../lcode.lua
+../ldump.lua
+../llex.lua
+../lopcodes.lua
+../lparser.lua
+../lzio.lua
+]], "%S+") do
+  table.insert(fileset, fn)
+end
+
+for i = 1, table.getn(fileset) do
+  local fn = fileset[i]
+  local inf = io.open(fn, "rb")
+  if not inf then
+    error("failed to open "..fn.." for reading")
+  end
+  local data = inf:read("*a")
+  local data_sz = string.len(data)
+  inf:close()
+  if not data or data_sz == 0 then
+    error("failed to read data from "..fn.." or file is zero-length")
+  end
+  totalsize = totalsize + data_sz
+  fileset[i] = data
+end
+
+------------------------------------------------------------------------
+-- benchmark tester
+------------------------------------------------------------------------
+
+local DURATION = 5      -- how long the benchmark should run
+
+local L = {} -- LuaState
+local LS = {} -- LexState
+
+local time = os.time
+local lexedsize = 0
+local tnow, elapsed = time(), 0
+
+while time() == tnow do end    -- wait for second to click over
+tnow = time()
+
+while true do
+  for i = 1, table.getn(fileset) do
+    ------------------------------------------------------------
+    local chunk = fileset[i]
+    local z = luaZ:init(luaZ:make_getS(chunk), nil, "=string")
+    luaX:setinput(L, LS, z, z.name)
+    while true do
+      LS.t.token = luaX:lex(LS, LS.t)
+      local tok, seminfo = LS.t.token, LS.t.seminfo
+      if tok == "TK_EOS" then break end
+    end
+    ------------------------------------------------------------
+    lexedsize = lexedsize + string.len(chunk)
+    if time() > tnow then
+      tnow = time()
+      elapsed = elapsed + 1
+      if elapsed >= DURATION then
+        -- report performance of lexer
+        lexedsize = lexedsize / 1024
+        local speed = lexedsize / DURATION
+        print("Lexer performance:")
+        print("Size of data lexed (KB): "..string.format("%.1f", lexedsize))
+        print("Speed of lexer (KB/s): "..string.format("%.1f", speed))
+        -- repeat until user breaks program
+        elapsed = 0
+      end
+    end
+    ------------------------------------------------------------
+  end--for
+end--while
+
+-- end of script
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/sample.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/sample.lua
new file mode 100644
index 0000000..dc6eaee
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/sample.lua
@@ -0,0 +1,3 @@
+local a = 47
+local b = "hello, world!"
+print(a, b)
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/test_ldump.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/test_ldump.lua
new file mode 100644
index 0000000..d867688
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/test_ldump.lua
@@ -0,0 +1,98 @@
+--[[--------------------------------------------------------------------
+
+  test_ldump.lua
+  Test for ldump.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- test dump chunkwriter style
+------------------------------------------------------------------------
+
+require("../lopcodes")
+require("../ldump")
+
+-- Original typedef:
+--int (*lua_Chunkwriter) (lua_State *L, const void* p, size_t sz, void* ud);
+
+local MyWriter, MyBuff = luaU:make_setS()
+if not MyWriter then
+  error("failed to initialize using make_setS")
+end
+MyWriter("hello, ", MyBuff)
+MyWriter("world!", MyBuff)
+print(MyBuff.data)
+
+local MyWriter, MyBuff = luaU:make_setF("try.txt")
+if not MyWriter then
+  error("failed to initialize using make_setF")
+end
+MyWriter("hello, ", MyBuff)
+MyWriter("world!", MyBuff)
+MyWriter(nil, MyBuff)
+
+------------------------------------------------------------------------
+-- test output of a function prototype
+-- * data can be copied from a ChunkSpy listing output
+------------------------------------------------------------------------
+--   local a = 47
+--   local b = "hello, world!"
+--   print(a, b)
+------------------------------------------------------------------------
+
+local F = {}
+F.source = "sample.lua"
+F.lineDefined = 0
+F.nups = 0
+F.numparams = 0
+F.is_vararg = 0
+F.maxstacksize = 5
+F.sizelineinfo = 7
+F.lineinfo = {}
+F.lineinfo[0] = 1
+F.lineinfo[1] = 2
+F.lineinfo[2] = 3
+F.lineinfo[3] = 3
+F.lineinfo[4] = 3
+F.lineinfo[5] = 3
+F.lineinfo[6] = 3

+F.sizelocvars = 2
+F.locvars = {}
+F.locvars[0] = { varname = "a", startpc = 1, endpc = 6 }
+F.locvars[1] = { varname = "b", startpc = 2, endpc = 6 }
+F.sizeupvalues = 0
+F.upvalues = {}
+F.sizek = 3
+F.k = {}
+F.k[0] = { value = 47 }
+F.k[1] = { value = "hello, world!" }
+F.k[2] = { value = "print" }
+F.sizep = 0
+F.p = {}
+F.sizecode = 7
+F.code = {}
+F.code[0] = { OP =  1, A = 0, Bx = 0 }
+F.code[1] = { OP =  1, A = 1, Bx = 1 }
+F.code[2] = { OP =  5, A = 2, Bx = 2 }
+F.code[3] = { OP =  0, A = 3, B = 0, C = 0 }
+F.code[4] = { OP =  0, A = 4, B = 1, C = 0 }
+F.code[5] = { OP = 25, A = 2, B = 3, C = 1 }
+F.code[6] = { OP = 27, A = 0, B = 1, C = 0 }
+
+local L = {}
+--[[
+local Writer, Buff = luaU:make_setS()
+luaU:dump(L, F, Writer, Buff)
+for i = 1, string.len(Buff.data) do
+  io.stdout:write(string.byte(string.sub(Buff.data, i, i)).." ")
+end
+--]]
+local Writer, Buff = luaU:make_setF("try.out")
+luaU:dump(L, F, Writer, Buff)
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/test_llex.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/test_llex.lua
new file mode 100644
index 0000000..6bc834d
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/test_llex.lua
@@ -0,0 +1,504 @@
+--[[--------------------------------------------------------------------
+
+  test_llex.lua
+  Test for llex.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- if BRIEF is not set to false, auto-test will silently succeed
+------------------------------------------------------------------------
+BRIEF = true  -- if set to true, messages are less verbose
+
+require("../lzio")
+require("../llex")
+luaX:init()
+
+------------------------------------------------------------------------
+-- simple manual tests
+------------------------------------------------------------------------
+
+--[[
+local L = {} -- LuaState
+local LS = {} -- LexState
+
+local function dump(z)
+  luaX:setinput(L, LS, z, z.name)
+  while true do
+    LS.t.token = luaX:lex(LS, LS.t)
+    local tok, seminfo = LS.t.token, LS.t.seminfo
+    if tok == "TK_NAME" then
+      seminfo = " "..seminfo
+    elseif tok == "TK_NUMBER" then
+      seminfo = " "..seminfo
+    elseif tok == "TK_STRING" then
+      seminfo = " '"..seminfo.."'"
+    else
+      seminfo = ""
+    end
+    io.stdout:write(tok..seminfo.."\n")
+    if tok == "TK_EOS" then break end
+  end
+end
+
+local function try_string(chunk)
+  dump(luaZ:init(luaZ:make_getS(chunk), nil, "=string"))
+end
+local function try_file(filename)
+  dump(luaZ:init(luaZ:make_getF(filename), nil, filename))
+end
+
+z = try_string("local c = luaZ:zgetc(z)")
+z = try_file("test_lzio.lua")
+z = try_file("test_llex.lua")
+os.exit()
+--]]
+
+------------------------------------------------------------------------
+-- auto-testing of simple test cases to validate lexer behaviour:
+-- * NOTE coverage has not been checked; not comprehensive
+-- * only test cases with non-empty comments are processed
+-- * if no result, then the output is displayed for manual decision
+--   (output may be used to set expected success or fail text)
+-- * cases expected to be successful may be a partial match
+-- * cases expected to fail may also be a partial match
+------------------------------------------------------------------------
+
+-- [[
+local function auto_test()
+  local PASS, FAIL = true, false
+  ------------------------------------------------------------------
+  -- table of test cases
+  ------------------------------------------------------------------
+  local test_cases =
+  {
+    -------------------------------------------------------------
+  --{ "comment",  -- comment about the test
+  --  "chunk",    -- chunk to test
+  --  PASS,       -- PASS or FAIL outcome
+  --  "output",   -- output to compare against
+  --},
+    -------------------------------------------------------------
+    { "empty chunk string, test EOS",
+      "",
+      PASS, "1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "line number counting",
+      "\n\n\r\n",
+      PASS, "4 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "various whitespaces",
+      "  \n\t\t\n  \t  \t \n\n",
+      PASS, "5 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "short comment ending in EOS",
+      "-- moo moo",
+      PASS, "1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "short comment ending in newline",
+      "-- moo moo\n",
+      PASS, "2 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "several lines of short comments",
+      "--moo\n-- moo moo\n\n--\tmoo\n",
+      PASS, "5 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "basic block comment",
+      "--[[bovine]]",
+      PASS, "1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 1",
+      "--[[bovine",
+      FAIL, ":1: unfinished long comment near `<eof>'",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 2",
+      "--[[bovine]",
+      FAIL, ":1: unfinished long comment near `<eof>'",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 3",
+      "--[[bovine\nmoo moo\nwoof",
+      FAIL, ":3: unfinished long comment near `<eof>'",
+    },
+    -------------------------------------------------------------
+    { "basic long string",
+      "\n[[bovine]]\n",
+      PASS, "2 TK_STRING = bovine\n3 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "first newline consumed in long string",
+      "[[\nmoo]]",
+      PASS, "2 TK_STRING = moo\n2 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "multiline long string",
+      "[[moo\nmoo moo\n]]",
+      PASS, "3 TK_STRING = moo\nmoo moo\n\n3 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "unterminated long string 1",
+      "\n[[\nbovine",
+      FAIL, ":3: unfinished long string near `<eof>'",
+    },
+    -------------------------------------------------------------
+    { "unterminated long string 2",
+      "[[bovine]",
+      FAIL, ":1: unfinished long string near `<eof>'",
+    },
+    -------------------------------------------------------------
+    { "unterminated long string 3",
+      "[[[[ \n",
+      FAIL, ":2: unfinished long string near `<eof>'",
+    },
+    -------------------------------------------------------------
+    { "nested long string 1",
+      "[[moo[[moo]]moo]]",
+      PASS, "moo[[moo]]moo",
+    },
+    -------------------------------------------------------------
+    { "nested long string 2",
+      "[[moo[[moo[[[[]]]]moo]]moo]]",
+      PASS, "moo[[moo[[[[]]]]moo]]moo",
+    },
+    -------------------------------------------------------------
+    { "nested long string 3",
+      "[[[[[[]]]][[[[]]]]]]",
+      PASS, "[[[[]]]][[[[]]]]",
+    },
+    -------------------------------------------------------------
+    { "brackets in long strings 1",
+      "[[moo[moo]]",
+      PASS, "moo[moo",
+    },
+    -------------------------------------------------------------
+    { "brackets in long strings 2",
+      "[[moo[[moo]moo]]moo]]",
+      PASS, "moo[[moo]moo]]moo",
+    },
+    -------------------------------------------------------------
+    { "unprocessed escapes in long strings",
+      [[ [[\a\b\f\n\r\t\v\123]] ]],
+      PASS, [[\a\b\f\n\r\t\v\123]],
+    },
+    -------------------------------------------------------------
+    { "unbalanced long string",
+      "[[moo]]moo]]",
+      PASS, "1 TK_STRING = moo\n1 TK_NAME = moo\n1 CHAR = ']'\n1 CHAR = ']'\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "keywords 1",
+      "and break do else",
+      PASS, "1 TK_AND\n1 TK_BREAK\n1 TK_DO\n1 TK_ELSE\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "keywords 2",
+      "elseif end false for",
+      PASS, "1 TK_ELSEIF\n1 TK_END\n1 TK_FALSE\n1 TK_FOR\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "keywords 3",
+      "function if in local nil",
+      PASS, "1 TK_FUNCTION\n1 TK_IF\n1 TK_IN\n1 TK_LOCAL\n1 TK_NIL\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "keywords 4",
+      "not or repeat return",
+      PASS, "1 TK_NOT\n1 TK_OR\n1 TK_REPEAT\n1 TK_RETURN\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "keywords 5",
+      "then true until while",
+      PASS, "1 TK_THEN\n1 TK_TRUE\n1 TK_UNTIL\n1 TK_WHILE\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "concat and dots",
+      ".. ...",
+      PASS, "1 TK_CONCAT\n1 TK_DOTS\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "shbang handling 1",
+      "#blahblah",
+      PASS, "1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "shbang handling 2",
+      "#blahblah\nmoo moo\n",
+      PASS, "2 TK_NAME = moo\n2 TK_NAME = moo\n3 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "empty string",
+      [['']],
+      PASS, "1 TK_STRING = \n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "single-quoted string",
+      [['bovine']],
+      PASS, "1 TK_STRING = bovine\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "double-quoted string",
+      [["bovine"]],
+      PASS, "1 TK_STRING = bovine\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "unterminated string 1",
+      [['moo ]],
+      FAIL, ":1: unfinished string near `<eof>'",
+    },
+    -------------------------------------------------------------
+    { "unterminated string 2",
+      [["moo \n]],
+      FAIL, ":1: unfinished string near `<eof>'",
+    },
+    -------------------------------------------------------------
+    { "escaped newline in string, line number counted",
+      "\"moo\\\nmoo\\\nmoo\"",
+      PASS, "3 TK_STRING = moo\nmoo\nmoo\n3 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 1",
+      [["moo\amoo"]],
+      PASS, "1 TK_STRING = moo\amoo",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 2",
+      [["moo\bmoo"]],
+      PASS, "1 TK_STRING = moo\bmoo",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 3",
+      [["moo\f\n\r\t\vmoo"]],
+      PASS, "1 TK_STRING = moo\f\n\r\t\vmoo",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 4",
+      [["\\ \" \' \? \[ \]"]],
+      PASS, "1 TK_STRING = \\ \" \' \? \[ \]",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 5",
+      [["\z \k \: \;"]],
+      PASS, "1 TK_STRING = z k : ;",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 6",
+      [["\8 \65 \160 \180K \097097"]],
+      PASS, "1 TK_STRING = \8 \65 \160 \180K \097097\n",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 7",
+      [["\666"]],
+      FAIL, ":1: escape sequence too large near `\"'",
+    },
+    -------------------------------------------------------------
+    { "simple numbers",
+      "123 123+",
+      PASS, "1 TK_NUMBER = 123\n1 TK_NUMBER = 123\n1 CHAR = '+'\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "longer numbers",
+      "1234567890 12345678901234567890",
+      PASS, "1 TK_NUMBER = 1234567890\n1 TK_NUMBER = 1.2345678901235e+19\n",
+    },
+    -------------------------------------------------------------
+    { "fractional numbers",
+      ".123 .12345678901234567890",
+      PASS, "1 TK_NUMBER = 0.123\n1 TK_NUMBER = 0.12345678901235\n",
+    },
+    -------------------------------------------------------------
+    { "more numbers with decimal points",
+      "12345.67890 1.1.",
+      PASS, "1 TK_NUMBER = 12345.6789\n1 TK_NUMBER = 1.1\n1 CHAR = '.'\n",
+    },
+    -------------------------------------------------------------
+    { "double decimal points",
+      ".1.1",
+      FAIL, ":1: malformed number near `.1.1'",
+    },
+    -------------------------------------------------------------
+    { "double dots within numbers",
+      "1..1",
+      FAIL, ":1: ambiguous syntax (decimal point x string concatenation) near `1..'",
+    },
+    -------------------------------------------------------------
+    { "incomplete exponential numbers",
+      "123e",
+      FAIL, ":1: malformed number near `123e'",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 1",
+      "1234e5 1234e5.",
+      PASS, "1 TK_NUMBER = 123400000\n1 TK_NUMBER = 123400000\n1 CHAR = '.'",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 2",
+      "1234e56 1.23e123",
+      PASS, "1 TK_NUMBER = 1.234e+59\n1 TK_NUMBER = 1.23e+123\n",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 3",
+      "12.34e+",
+      FAIL, ":1: malformed number near `12.34e+'",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 4",
+      "12.34e+5 123.4e-5 1234.E+5",
+      PASS, "1 TK_NUMBER = 1234000\n1 TK_NUMBER = 0.001234\n1 TK_NUMBER = 123400000\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 1",
+      "= > < ~",
+      PASS, "1 CHAR = '='\n1 CHAR = '>'\n1 CHAR = '<'\n1 CHAR = '~'\n",
+    },
+    -------------------------------------------------------------
+    { "double character symbols",
+      "== >= <= ~=",
+      PASS, "1 TK_EQ\n1 TK_GE\n1 TK_LE\n1 TK_NE\n",
+    },
+    -------------------------------------------------------------
+    { "simple identifiers",
+      "abc ABC",
+      PASS, "1 TK_NAME = abc\n1 TK_NAME = ABC\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "more identifiers",
+      "_abc _ABC",
+      PASS, "1 TK_NAME = _abc\n1 TK_NAME = _ABC\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "still more identifiers",
+      "_aB_ _123",
+      PASS, "1 TK_NAME = _aB_\n1 TK_NAME = _123\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "invalid control character",
+      "\4",
+      FAIL, ":1: invalid control char near `char(4)'",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 2",
+      "` ! @ $ %",
+      PASS, "1 CHAR = '`'\n1 CHAR = '!'\n1 CHAR = '@'\n1 CHAR = '$'\n1 CHAR = '%'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 3",
+      "^ & * ( )",
+      PASS, "1 CHAR = '^'\n1 CHAR = '&'\n1 CHAR = '*'\n1 CHAR = '('\n1 CHAR = ')'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 4",
+      "_ - + \\ |",
+      PASS, "1 TK_NAME = _\n1 CHAR = '-'\n1 CHAR = '+'\n1 CHAR = '\\'\n1 CHAR = '|'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 5",
+      "{ } [ ] :",
+      PASS, "1 CHAR = '{'\n1 CHAR = '}'\n1 CHAR = '['\n1 CHAR = ']'\n1 CHAR = ':'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 6",
+      "; , . / ?",
+      PASS, "1 CHAR = ';'\n1 CHAR = ','\n1 CHAR = '.'\n1 CHAR = '/'\n1 CHAR = '?'\n",
+    },
+    -------------------------------------------------------------
+  }
+  ------------------------------------------------------------------
+  -- perform a test case
+  ------------------------------------------------------------------
+  function do_test_case(count, test_case)
+    if comment == "" then return end  -- skip empty entries
+    local comment, chunk, outcome, matcher = unpack(test_case)
+    local result = PASS
+    local output = ""
+    -- initialize lexer
+    local L, LS  = {}, {}
+    local z = luaZ:init(luaZ:make_getS(chunk), nil, "=test")
+    luaX:setinput(L, LS, z, z.name)
+    -- lexer test loop
+    repeat
+      -- protected call
+      local status, token = pcall(luaX.lex, luaX, LS, LS.t)
+      LS.t.token = token
+      output = output..LS.linenumber.." "
+      if status then
+        -- successful call
+        if string.len(token) > 1 then
+          if token == "TK_NAME"
+             or token == "TK_NUMBER"
+             or token == "TK_STRING" then
+            token = token.." = "..LS.t.seminfo
+          end
+        elseif string.byte(token) >= 32 then  -- displayable chars
+          token = "CHAR = '"..token.."'"
+        else  -- control characters
+          token = "CHAR = (".. string.byte(token)..")"
+        end
+        output = output..token.."\n"
+      else
+        -- failed call
+        output = output..token  -- token is the error message
+        result = FAIL
+        break
+      end
+    until LS.t.token == "TK_EOS"
+    -- decision making and reporting
+    local head = "Test "..count..": "..comment
+    if matcher == "" then
+      -- nothing to check against, display for manual check
+      print(head.."\nMANUAL please check manually"..
+            "\n--chunk---------------------------------\n"..chunk..
+            "\n--actual--------------------------------\n"..output..
+            "\n\n")
+      return
+    else
+      if outcome == PASS then
+        -- success expected, may be a partial match
+        if string.find(output, matcher, 1, 1) and result == PASS then
+          if not BRIEF then print(head.."\nOK expected success\n") end
+          return
+        end
+      else
+        -- failure expected, may be a partial match
+        if string.find(output, matcher, 1, 1) and result == FAIL then
+          if not BRIEF then print(head.."\nOK expected failure\n") end
+          return
+        end
+      end
+      -- failed because of unmatched string or boolean result
+      local function passfail(status)
+        if status == PASS then return "PASS" else return "FAIL" end
+      end
+      print(head.." *FAILED*"..
+            "\noutcome="..passfail(outcome)..
+            "\nactual= "..passfail(result)..
+            "\n--chunk---------------------------------\n"..chunk..
+            "\n--expected------------------------------\n"..matcher..
+            "\n--actual--------------------------------\n"..output..
+            "\n\n")
+    end
+  end
+  ------------------------------------------------------------------
+  -- perform auto testing
+  ------------------------------------------------------------------
+  for i,test_case in ipairs(test_cases) do
+    do_test_case(i, test_case)
+  end
+end
+
+auto_test()
+--]]
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/test_lparser.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/test_lparser.lua
new file mode 100644
index 0000000..b9400cc
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/test_lparser.lua
@@ -0,0 +1,60 @@
+--[[--------------------------------------------------------------------
+
+  test_lparser.lua
+  Test for lparser.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- test the whole kaboodle
+------------------------------------------------------------------------
+
+require("../lzio")
+require("../llex")
+require("../lopcodes")
+require("../ldump")
+require("../lcode")
+require("../lparser")
+
+function lua_assert(test)
+  if not test then error("assertion failed!") end
+end
+
+luaX:init()
+
+------------------------------------------------------------------------
+-- try 1
+------------------------------------------------------------------------
+
+local zio = luaZ:init(luaZ:make_getS("local a = 1"), nil, "=string")
+local LuaState = {}
+local Func = luaY:parser(LuaState, zio, nil)
+
+--[[
+for i, v in Func do
+  if type(v) == "string" or type(v) == "number" then
+    print(i, v)
+  elseif type(v) == "table" then
+    print(i, "TABLE")
+  end
+end
+--]]
+
+local Writer, Buff = luaU:make_setF("parse1.out")
+luaU:dump(LuaState, Func, Writer, Buff)
+
+------------------------------------------------------------------------
+-- try 2
+------------------------------------------------------------------------
+
+zio = luaZ:init(luaZ:make_getF("sample.lua"), nil, "@sample.lua")
+Func = luaY:parser(LuaState, zio, nil)
+Writer, Buff = luaU:make_setF("parse2.out")
+luaU:dump(LuaState, Func, Writer, Buff)
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/test_lparser2.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/test_lparser2.lua
new file mode 100644
index 0000000..b912e68
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/test_lparser2.lua
@@ -0,0 +1,202 @@
+--[[--------------------------------------------------------------------
+
+  test_lparser2.lua
+  Test for lparser.lua, using the test case file
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * the test cases are in the test_lua directory (test_parser-5.0.lua)
+----------------------------------------------------------------------]]
+
+-- * true if you want an output of all failure cases in native Lua,
+--   for checking whether test cases fail where you intend them to
+local DEBUG_FAILS = false
+
+------------------------------------------------------------------------
+-- test the whole kaboodle
+------------------------------------------------------------------------
+
+require("../lzio")
+require("../llex")
+require("../lopcodes")
+require("../ldump")
+require("../lcode")
+require("../lparser")
+
+function lua_assert(test)
+  if not test then error("assertion failed!") end
+end
+
+luaX:init()
+
+------------------------------------------------------------------------
+-- load test cases
+------------------------------------------------------------------------
+
+require("../../test_lua/test_parser-5.0")
+
+local test, expect, heading = {}, {}, {}
+local total, total_pass, total_fail = 0, 0, 0
+
+for ln in string.gfind(tests_source, "([^\n]*)\n") do
+  if string.find(ln, "^%s*%-%-") then
+    -- comment, ignore
+  else
+    local m, _, head = string.find(ln, "^%s*(TESTS:%s*.*)$")
+    if m then
+      heading[total + 1] = head         -- informational heading
+    else
+      total = total + 1
+      local n, _, flag = string.find(ln, "%s*%-%-%s*FAIL%s*$")
+      if n then                         -- FAIL test case
+        ln = string.sub(ln, 1, n - 1)   -- remove comment
+        expect[total] = "FAIL"
+        total_fail = total_fail + 1
+      else                              -- PASS test case
+        expect[total] = "PASS"
+        total_pass = total_pass + 1
+      end--n
+      test[total] = ln
+    end--m
+  end--ln
+end--for
+
+print("Tests loaded: "..total.." (total), "
+                      ..total_pass.." (passes), "
+                      ..total_fail.." (fails)")
+
+------------------------------------------------------------------------
+-- verify test cases using native Lua
+------------------------------------------------------------------------
+
+local last_head = "TESTS: no heading yet"
+for i = 1, total do
+  local test_case, expected, head = test[i], expect[i], heading[i]
+  -- show progress
+  if head then
+    last_head = head
+    if DEBUG_FAILS then print("\n"..head.."\n") end
+  end
+  ------------------------------------------------------------------
+  -- perform test
+  local f, err = loadstring(test_case)
+  -- look at outcome
+  ------------------------------------------------------------------
+  if f then-- actual PASS
+    if expected == "FAIL" then
+      print("\nVerified as PASS but expected to FAIL"..
+            "\n-------------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      os.exit()
+    end
+  ------------------------------------------------------------------
+  else-- actual FAIL
+    if expected == "PASS" then
+      print("\nVerified as FAIL but expected to PASS"..
+            "\n-------------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      print("ERROR: "..err)
+      os.exit()
+    end
+    if DEBUG_FAILS then
+      print("TEST: "..test_case)
+      print("ERROR: "..err.."\n")
+    end
+  ------------------------------------------------------------------
+  end--f
+end--for
+
+print("Test cases verified using native Lua, no anomalies.")
+
+------------------------------------------------------------------------
+-- dump binary chunks to a file if something goes wrong
+------------------------------------------------------------------------
+local function Dump(data, filename)
+  h = io.open(filename, "wb")
+  if not h then error("failed to open "..filename.." for writing") end
+  h:write(data)
+  h:close()
+end
+
+------------------------------------------------------------------------
+-- test using Yueliang front end
+------------------------------------------------------------------------
+
+local last_head = "TESTS: no heading yet"
+for i = 1, total do
+  local test_case, expected, head = test[i], expect[i], heading[i]
+  -- show progress
+  if head then last_head = head end
+  ------------------------------------------------------------------
+  -- perform test
+  local LuaState = {}
+  local zio = luaZ:init(luaZ:make_getS(test_case), nil, "test")
+  local status, func = pcall(luaY.parser, luaY, LuaState, zio, nil)
+  -- look at outcome
+  ------------------------------------------------------------------
+  if status then-- actual PASS
+    if expected == "PASS" then
+      -- actual PASS and expected PASS, so check binary chunks
+      local writer, buff = luaU:make_setS()
+      luaU:dump(LuaState, func, writer, buff)
+      local bc1 = buff.data  -- Yueliang's output
+      local f = loadstring(test_case, "test")
+      local bc2 = string.dump(f)  -- Lua's output
+      local die
+      -- compare outputs
+      if string.len(bc1) ~= string.len(bc2) then
+        Dump(bc1, "bc1.out")
+        Dump(bc2, "bc2.out")
+        die = "binary chunk sizes different"
+      elseif bc1 ~= bc2 then
+        Dump(bc1, "bc1.out")
+        Dump(bc2, "bc2.out")
+        die = "binary chunks different"
+      else
+        -- everything checks out!
+      end
+      if die then
+        print("\nTested PASS and expected to PASS, but chunks different"..
+              "\n------------------------------------------------------")
+        print("Reason: "..die)
+        print("Lastest heading: "..last_head)
+        print("TEST: "..test_case)
+        os.exit()
+      end
+    else-- expected FAIL
+      print("\nTested as PASS but expected to FAIL"..
+            "\n-----------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      os.exit()
+    end
+  ------------------------------------------------------------------
+  else-- actual FAIL
+    if expected == "PASS" then
+      print("\nTested as FAIL but expected to PASS"..
+            "\n-----------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      print("ERROR: "..err)
+      os.exit()
+    end
+  ------------------------------------------------------------------
+  end--status
+  io.stdout:write("\rTesting ["..i.."]...")
+end--for
+print(" done.")
+
+print("Test cases run on Yueliang, no anomalies.")
+
+-- end
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/test_lzio.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/test_lzio.lua
new file mode 100644
index 0000000..cfd3f4b
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/test_lzio.lua
@@ -0,0 +1,55 @@
+--[[--------------------------------------------------------------------
+
+  test_lzio.lua
+  Test for lzio.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+-- manual test for lzio.lua lua-style chunk reader
+
+require("../lzio")
+
+local z
+function dump(z)
+  while true do
+    local c = luaZ:zgetc(z)
+    io.stdout:write("("..c..")")
+    if c == "EOZ" then break end
+  end
+  io.stdout:write("\n")
+end
+
+-- luaZ:make_getS or luaZ:make_getF creates a chunk reader
+-- luaZ:init makes a zio stream
+
+-- [[
+z = luaZ:init(luaZ:make_getS("hello, world!"), nil, "=string")
+dump(z)
+z = luaZ:init(luaZ:make_getS(", world!"), "hello", "=string")
+dump(z)
+z = luaZ:init(luaZ:make_getS("line1\nline2\n"), "", "=string")
+dump(z)
+z = luaZ:init(luaZ:make_getF("test_lzio.lua"), nil, "=string")
+dump(z)
+--]]
+
+-- test read beyond end of file
+-- bug reported by Adam429
+--[[
+z = luaZ:init(luaZ:make_getF("test_lzio.lua"), nil, "=string")
+while true do
+  local c = luaZ:zgetc(z)
+  io.stdout:write("("..c..")")
+  if c == "EOZ" then break end
+end
+print(luaZ:zgetc(z))
+print(luaZ:zgetc(z))
+io.stdout:write("\n")
+--]]
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/test_number.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/test_number.lua
new file mode 100644
index 0000000..eeabecb
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/test/test_number.lua
@@ -0,0 +1,174 @@
+--[[--------------------------------------------------------------------
+
+  test_number.lua
+  Test for Lua-based number conversion functions in ldump.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * luaU:from_int(value) does not have overflow checks, but this
+--   can presumably be put in for debugging purposes.
+-- * TODO: double conversion does not support denormals or NaNs
+-- * apparently 0/0 == 0/0 is false (Lua 5.0.2 on Win32/Mingw), so
+--   can't use to check for NaNs
+----------------------------------------------------------------------]]
+
+require("../ldump")
+
+------------------------------------------------------------------------
+-- convert hex string representation to a byte string
+-- * must have an even number of hex digits
+------------------------------------------------------------------------
+local function from_hexstring(s)
+  local bs = ""
+  for i = 1, string.len(s), 2 do
+    local asc = tonumber(string.sub(s, i, i + 1), 16)
+    bs = bs..string.char(asc)
+  end
+  return bs
+end
+
+------------------------------------------------------------------------
+-- convert a byte string to a hex string representation
+-- * big-endian, easier to grok
+------------------------------------------------------------------------
+local function to_hexstring(s)
+  local hs = ""
+  for i = string.len(s), 1, -1 do
+    local c = string.byte(string.sub(s, i, i))
+    hs = hs..string.format("%02X", c)
+  end
+  return hs
+end
+
+------------------------------------------------------------------------
+-- tests for 32-bit signed/unsigned integer
+------------------------------------------------------------------------
+local function test_int(value, expected)
+  local actual = to_hexstring(luaU:from_int(value))
+  if not expected or expected == "" then
+    print(value..": "..actual)
+  elseif actual ~= expected then
+    print(value..": FAILED!\n"..
+          "Converted: "..actual.."\n"..
+          "Expected:  "..expected)
+    return true
+  end
+  return false
+end
+
+local table_int = {
+  ["0"]           = "00000000",
+  ["1"]           = "00000001",
+  ["256"]         = "00000100",
+  ["-256"]        = "FFFFFF00",
+  ["-1"]          = "FFFFFFFF",
+  ["2147483647"]  = "7FFFFFFF", -- LONG_MAX
+  ["-2147483648"] = "80000000", -- LONG_MIN
+  ["4294967295"]  = "FFFFFFFF", -- ULONG_MAX
+  --[""] = "",
+}
+
+local success = true
+print("Testing luaU:from_int():")
+for i, v in pairs(table_int) do
+  local test_value = tonumber(i)
+  local expected = v
+  if test_int(test_value, expected) then
+    success = false
+  end
+end
+if success then
+  print("All test numbers passed okay.\n")
+else
+  print("There were one or more failures.\n")
+end
+
+------------------------------------------------------------------------
+-- tests for IEEE 754 64-bit double
+------------------------------------------------------------------------
+
+local function test_double(value, expected)
+  local actual = to_hexstring(luaU:from_double(value))
+  if not expected or expected == "" then
+    print(value..": "..actual)
+  elseif actual ~= expected then
+    print(value..": FAILED!\n"..
+          "Converted: "..actual.."\n"..
+          "Expected:  "..expected)
+    return true
+  end
+  return false
+end
+
+-- special values, see testing loop for actual lookup
+Infinity = 1/0
+Infinity_neg = -1/0
+
+-- can't seem to do a comparison test with NaN, so leave them
+-- (need to check the IEEE standard on this...)
+NaN = 0/0
+NaN_neg = -0/0
+--["NaN"] = "", -- 7FF8000000000000 (djgpp)
+--["NaN_neg"] = "", -- FFF8000000000000 (djgpp)
+
+local table_double = {
+  -- 0 for exponent, 0 for mantissa
+  ["0"] = "0000000000000000",
+  -- 3FF is bias of 1023, so (-1)^0 * (1+0) * 2^0
+  ["1"] = "3FF0000000000000",
+  -- BFF has sign bit on, so (-1)^1 * (1+0) * 2^0
+  ["-1"] = "BFF0000000000000",
+  -- 3FC is bias of 1020, so (-1)^0 * (1+0) * 2^-3
+  ["0.125"] = "3FC0000000000000",
+  ["0.250"] = "3FD0000000000000",
+  ["0.500"] = "3FE0000000000000",
+  -- 40F is bias of 1039, so (-1)^0 * (1+0) * 2^16
+  ["65536"] = "40F0000000000000",
+  -- 7FF is bias of 2047, 0 for mantissa
+  ["Infinity"] = "7FF0000000000000",
+  -- FFF has sign bit on, 0 for mantissa
+  ["Infinity_neg"] = "FFF0000000000000",
+  -- DBL_MIN, exponent=001 (   1), mantissa=0000000000000
+  ["2.2250738585072014e-308"] = "0010000000000000",
+  -- DBL_MAX, exponent=7FE (2046), mantissa=FFFFFFFFFFFFF
+  ["1.7976931348623157e+308"] = "7FEFFFFFFFFFFFFF",
+--[[
+  -- * the following is for float numbers only *
+  -- FLT_MIN, exponent=01 (  1), mantissa=000000
+  -- altervative value for FLT_MIN: 1.17549435e-38F
+  ["1.1754943508222875081e-38"] = "00800000",
+  -- FLT_MAX, exponent=FE (254), mantissa=7FFFFF
+  -- altervative value for FLT_MAX: 3.402823466e+38F
+  ["3.4028234663852885982e+38"] = "7F7FFFFF",
+--]]
+  --[""] = "",
+}
+
+local success = true
+print("Testing luaU:from_double():")
+for i, v in pairs(table_double) do
+  local test_value
+  if not string.find(i, "%d") then
+    test_value = _G[i]
+  else
+    test_value = tonumber(i)
+  end
+  local expected = v
+  if test_double(test_value, expected) then
+    success = false
+  end
+end
+if success then
+  print("All test numbers passed okay.\n")
+else
+  print("There were one or more failures.\n")
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/tools/call_graph.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/tools/call_graph.lua
new file mode 100644
index 0000000..5c60e17
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/tools/call_graph.lua
@@ -0,0 +1,254 @@
+--[[--------------------------------------------------------------------
+
+  call_graph.lua
+  Call graph generator.
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * the call tracer wraps function calls in tables to do its work
+-- * not very elegant as the namespace of the table/module is affected
+-- * tracing using the debugger is probably much more powerful...
+-- * use of braces {} allows editors to match braces in the output
+--   and do folding, if such facilities are available; for example, the
+--   output looks better if Lua syntax highlighting is used on SciTE
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- options
+------------------------------------------------------------------------
+
+local SHOW_EXPDESC = true       -- show expdesc struct data
+
+------------------------------------------------------------------------
+-- load and initialize modules
+------------------------------------------------------------------------
+require("../lzio.lua")
+require("../llex.lua")
+require("../lopcodes.lua")
+require("../ldump.lua")
+require("../lcode.lua")
+require("../lparser.lua")
+
+function lua_assert(test)
+  if not test then error("assertion failed!") end
+end
+luaX:init()
+local LuaState = {}
+
+------------------------------------------------------------------------
+-- call graph generator
+-- * (1) logging functions, (2) the wrapper initializer itself
+------------------------------------------------------------------------
+
+llog = {}
+
+------------------------------------------------------------------------
+-- initialize log file; the usual mode is append; can use stdout/stderr
+------------------------------------------------------------------------
+function llog:init(filename)
+  if filename == "stdout" then self.h = io.stdout
+  elseif filename == "stderr" then self.h = io.stderr
+  else
+    self.h = io.open(filename, "ab")
+    if not self.h then
+      error("can't open log file "..filename.."for writing")
+    end
+  end
+  self.h:write("\n-- start of log --\n\n")
+end
+
+------------------------------------------------------------------------
+-- cleanly closes log file
+------------------------------------------------------------------------
+function llog:exit()
+  self.h:write("\n-- end of log --\n\n")
+  if self.h ~= io.stdout and self.h ~= io.stderr then
+    self.h:close()
+  end
+end
+
+------------------------------------------------------------------------
+-- logs a message at a particular call depth
+------------------------------------------------------------------------
+function llog:msg(msg, level)
+  if level then msg = string.rep("  ", level)..msg end
+  self.h:write(msg)
+  self.h:flush()
+end
+
+------------------------------------------------------------------------
+-- set up wrapper functions to do tracing on a per-module basis
+------------------------------------------------------------------------
+function llog:calltrace(parms)
+  ------------------------------------------------------------------
+  -- process parameters
+  ------------------------------------------------------------------
+  local module = parms.module
+  local modulename = parms.modulename
+  if type(module) ~= "table" then
+    error("module table parameter required")
+  elseif not modulename then
+    error("module name parameter required")
+  end
+  ------------------------------------------------------------------
+  -- use either allow or deny list
+  ------------------------------------------------------------------
+  local allow = parms.allow or {}
+  local deny = parms.deny or {}
+  if table.getn(allow) > 0 and table.getn(deny) > 0 then
+    error("can't apply both allow and deny lists at the same time")
+  end
+  ------------------------------------------------------------------
+  -- select functions to wrap
+  ------------------------------------------------------------------
+  local flist = {}
+  for i, f in pairs(module) do
+    local wrapthis
+    if table.getn(allow) > 0 then  -- allow some only
+      wrapthis = false
+      for j, v in ipairs(allow) do
+        if i == v then wrapthis = true; break end
+      end
+    elseif table.getn(deny) > 0 then  -- deny some only
+      wrapthis = true
+      for j, v in ipairs(deny) do
+        if i == v then wrapthis = false; break end
+      end
+    else  -- default include
+      wrapthis = true
+    end
+    if wrapthis then flist[i] = f end
+  end
+  ------------------------------------------------------------------
+  -- wrapped function(s) in a module for tracing
+  ------------------------------------------------------------------
+  llog.level = 0  -- nesting level
+  for i, f in pairs(flist) do
+    local ModuleName = modulename..":"
+    local OldName, OldFunc = i, f
+    if type(OldFunc) == "function" then
+      local NewName = "__"..OldName
+      while module[NewName] ~= nil do  -- avoid collisions
+        NewName = "_"..NewName
+      end
+      module[NewName] = OldFunc
+      module[OldName] =
+        ----------------------------------------------------------
+        -- wrapper function for a module's function
+        -- old function XYZ is renamed __XYZ
+        ----------------------------------------------------------
+        function(self, ...)
+          local parms = " ("
+          local exps = {}
+          -- look for expdesc structs, identify FuncState structs too
+          local function checkexpdesc(v)
+            local typ = type(v)
+            if typ == "table" then
+              if v.code then return "func"
+              elseif v.L then return "ls"
+              elseif v.seminfo then return "token"
+              elseif v.k then
+                table.insert(exps, v)
+                return "exp"..table.getn(exps)
+              end
+            end
+            return typ
+          end
+          -- format parameters for printing
+          for i,v in ipairs(arg) do
+            if type(v) == "number" then parms = parms..v..","
+            elseif type(v) == "string" then parms = parms.."'"..v.."',"
+            elseif type(v) == "boolean" then parms = parms..tostring(v)..","
+            elseif SHOW_EXPDESC then parms = parms..checkexpdesc(v)..","
+            else parms = parms..type(v)..","
+            end
+          end
+          if table.getn(arg) > 0 then  -- chop last comma
+            parms = string.sub(parms, 1, -2)
+          end
+          -- up level
+          llog:msg(ModuleName..OldName..parms..") {\n", llog.level)
+          llog.level = llog.level + 1
+          -- display contents of expdesc
+          if SHOW_EXPDESC and table.getn(exps) > 0 then
+            for i,v in ipairs(exps) do
+              parms = "k:'"..v.k.."',"
+              if v.info then parms = parms.."info:"..v.info.."," end
+              if v.aux then parms = parms.."aux:"..v.aux.."," end
+              if v.t then parms = parms.."t:"..v.t.."," end
+              if v.f then parms = parms.."f:"..v.f.."," end
+              parms = string.sub(parms, 1, -2)
+              llog:msg("exp"..i.."("..parms..")\n", llog.level)
+            end
+          end
+          -- original function called here...
+          local retval = {self[NewName](self, unpack(arg))}
+          -- format return values
+          local rets = " = "
+          for i,v in ipairs(retval) do
+            if type(v) == "number" then rets = rets..v..","
+            elseif type(v) == "string" then rets = rets.."'"..v.."',"
+            elseif type(v) == "boolean" then rets = rets..tostring(v)..","
+            else rets = rets..type(v)..","
+            end
+          end
+          if table.getn(retval) > 0 then  -- chop last comma
+            rets = string.sub(rets, 1, -2)
+          else
+            rets = ""
+          end
+          -- down level
+          llog.level = llog.level - 1
+          llog:msg("} "..ModuleName..OldName..rets.."\n", llog.level)
+          return unpack(retval)
+        end--function
+        ----------------------------------------------------------
+      --print("patched "..OldName)
+    end--if
+  end--for
+end
+
+------------------------------------------------------------------------
+-- testing here
+-- * allow/deny works a bit like a somewhat similar Apache syntax
+-- * e.g. to show only function 'lex' and 'save' -> allow={"lex","save",}
+--        to not show function 'save_and_next' -> deny={"save_and_next",}
+-- * you can't do both allow and deny at the same time
+------------------------------------------------------------------------
+
+-- select the file or stream to output to
+--llog:init("calls.log")
+llog:init("stdout")
+
+-- select modules to trace
+llog:calltrace{module=luaX, modulename="luaX", allow={"lex"} }
+  -- here we trace only the main lex() function, to avoid showing
+  -- too many lexer calls; we want to focus on luaY and luaK
+llog:calltrace{module=luaY, modulename="luaY", deny={"growvector"} }
+  -- growvector() is just a limit checker in Yueliang, so drop it
+  -- to simplify the output log
+llog:calltrace{module=luaK, modulename="luaK"}
+--llog:calltrace{module=luaU, modulename="luaU"}
+
+-- select input stream
+local zio = luaZ:init(luaZ:make_getS("local a = 1"), nil, "=string")
+--local zio = luaZ:init(luaZ:make_getF("sample.lua"), nil, "@sample.lua")
+
+-- compile the source
+local Func = luaY:parser(LuaState, zio, nil)
+
+-- write binary chunk
+local Writer, Buff = luaU:make_setF("call_graph.out")
+luaU:dump(LuaState, Func, Writer, Buff)
+
+llog:exit()
+--end
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/tools/calls.log b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/tools/calls.log
new file mode 100644
index 0000000..c163f6c
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/tools/calls.log
@@ -0,0 +1,152 @@
+
+-- start of log --
+
+luaY:parser (table,table) {
+  luaY:open_func (table,table) {
+    luaY:newproto (table) {
+    } luaY:newproto = table
+  } luaY:open_func
+  luaY:next (table) {
+    luaX:lex (table,table) {
+    } luaX:lex = 'TK_LOCAL'
+  } luaY:next
+  luaY:chunk (table) {
+    luaY:enterlevel (table) {
+    } luaY:enterlevel
+    luaY:block_follow ('TK_LOCAL') {
+    } luaY:block_follow = false
+    luaY:statement (table) {
+      luaY:next (table) {
+        luaX:lex (table,table) {
+        } luaX:lex = 'TK_NAME'
+      } luaY:next
+      luaY:testnext (table,'TK_FUNCTION') {
+      } luaY:testnext = false
+      luaY:localstat (table) {
+        luaY:str_checkname (table) {
+          luaY:check_condition (table,true,'<name> expected') {
+          } luaY:check_condition
+          luaY:next (table) {
+            luaX:lex (table,table) {
+            } luaX:lex = '='
+          } luaY:next
+        } luaY:str_checkname = 'a'
+        luaY:new_localvar (table,'a',0) {
+          luaY:registerlocalvar (table,'a') {
+            luaY:growvector (table,table,0,0) {
+            } luaY:growvector
+          } luaY:registerlocalvar = 0
+        } luaY:new_localvar
+        luaY:testnext (table,',') {
+        } luaY:testnext = false
+        luaY:testnext (table,'=') {
+          luaY:next (table) {
+            luaX:lex (table,table) {
+            } luaX:lex = 'TK_NUMBER'
+          } luaY:next
+        } luaY:testnext = true
+        luaY:explist1 (table,table) {
+          luaY:expr (table,table) {
+            luaY:subexpr (table,table,-1) {
+              luaY:enterlevel (table) {
+              } luaY:enterlevel
+              luaY:getunopr ('TK_NUMBER') {
+              } luaY:getunopr = 'OPR_NOUNOPR'
+              luaY:simpleexp (table,table) {
+                luaK:numberK (table,1) {
+                  luaK:setnvalue (table,1) {
+                  } luaK:setnvalue
+                  luaK:addk (table,table,table) {
+                    luaK:ttisnumber ) {
+                    } luaK:ttisnumber = false
+                    luaY:growvector (table,table,0,0) {
+                    } luaY:growvector
+                    luaK:setnvalue (table,0) {
+                    } luaK:setnvalue
+                  } luaK:addk = 0
+                } luaK:numberK = 0
+                luaY:init_exp (table,'VK',0) {
+                } luaY:init_exp
+                luaY:next (table) {
+                  luaX:lex (table,table) {
+                  } luaX:lex = 'TK_EOS'
+                } luaY:next
+              } luaY:simpleexp
+              luaY:getbinopr ('TK_EOS') {
+              } luaY:getbinopr = 'OPR_NOBINOPR'
+              luaY:leavelevel (table) {
+              } luaY:leavelevel
+            } luaY:subexpr = 'OPR_NOBINOPR'
+          } luaY:expr
+          luaY:testnext (table,',') {
+          } luaY:testnext = false
+        } luaY:explist1 = 1
+        luaY:adjust_assign (table,1,1,table) {
+          luaK:exp2nextreg (table,table) {
+            luaK:dischargevars (table,table) {
+            } luaK:dischargevars
+            luaK:freeexp (table,table) {
+            } luaK:freeexp
+            luaK:reserveregs (table,1) {
+              luaK:checkstack (table,1) {
+              } luaK:checkstack
+            } luaK:reserveregs
+            luaK:exp2reg (table,table,0) {
+              luaK:discharge2reg (table,table,0) {
+                luaK:dischargevars (table,table) {
+                } luaK:dischargevars
+                luaK:codeABx (table,'OP_LOADK',0,0) {
+                  luaK:code (table,table,1) {
+                    luaK:dischargejpc (table) {
+                      luaK:patchlistaux (table,-1,0,255,0,255,0) {
+                      } luaK:patchlistaux
+                    } luaK:dischargejpc
+                    luaY:growvector (table,table,0,0) {
+                    } luaY:growvector
+                    luaY:growvector (table,table,0,0) {
+                    } luaY:growvector
+                  } luaK:code = 0
+                } luaK:codeABx = 0
+              } luaK:discharge2reg
+              luaK:hasjumps (table) {
+              } luaK:hasjumps = false
+            } luaK:exp2reg
+          } luaK:exp2nextreg
+        } luaY:adjust_assign
+        luaY:adjustlocalvars (table,1) {
+          luaY:getlocvar (table,0) {
+          } luaY:getlocvar = table
+        } luaY:adjustlocalvars
+      } luaY:localstat
+    } luaY:statement = false
+    luaY:testnext (table,';') {
+    } luaY:testnext = false
+    luaY:block_follow ('TK_EOS') {
+    } luaY:block_follow = true
+    luaY:leavelevel (table) {
+    } luaY:leavelevel
+  } luaY:chunk
+  luaY:check_condition (table,true,'<eof> expected') {
+  } luaY:check_condition
+  luaY:close_func (table) {
+    luaY:removevars (table,0) {
+      luaY:getlocvar (table,0) {
+      } luaY:getlocvar = table
+    } luaY:removevars
+    luaK:codeABC (table,'OP_RETURN',0,1,0) {
+      luaK:code (table,table,1) {
+        luaK:dischargejpc (table) {
+          luaK:patchlistaux (table,-1,1,255,1,255,1) {
+          } luaK:patchlistaux
+        } luaK:dischargejpc
+        luaY:growvector (table,table,1,0) {
+        } luaY:growvector
+        luaY:growvector (table,table,1,0) {
+        } luaY:growvector
+      } luaK:code = 1
+    } luaK:codeABC = 1
+  } luaY:close_func
+} luaY:parser = table
+
+-- end of log --
+
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/tools/sample_expr.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/tools/sample_expr.lua
new file mode 100644
index 0000000..519cd4c
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.0.3/tools/sample_expr.lua
@@ -0,0 +1,195 @@
+--[[--------------------------------------------------------------------
+
+  sample_expr.lua
+  Stand-alone expression parsing demonstrator.
+  This file is part of Yueliang.
+
+  Copyright (c) 2005 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * this is an interactive demonstrator for implementing expression
+--   parsing in ChunkBake, a Lua assembler
+-- * evaluation is immediate, and a result is immediately generated
+----------------------------------------------------------------------]]
+
+require("../lzio.lua")
+require("../llex.lua")
+luaX:init()
+
+------------------------------------------------------------------------
+-- expression parser
+------------------------------------------------------------------------
+
+expr = {}
+
+expr.unop = {
+  ["TK_NOT"] = true,
+  ["-"] = true,
+}
+expr.binop = {
+  ["^"] = 10,
+  ["*"] = 7,
+  ["/"] = 7,
+  ["+"] = 6,
+  ["-"] = 6,
+  ["TK_CONCAT"] = 5,
+  ["TK_NE"] = 3,
+  ["TK_EQ"] = 3,
+  ["<"] = 3,
+  ["TK_LE"] = 3,
+  [">"] = 3,
+  ["TK_GE"] = 3,
+  ["TK_AND"] = 2,
+  ["TK_OR"] = 1,
+}
+expr.binop_r = {
+  ["^"] = 9,
+  ["*"] = 7,
+  ["/"] = 7,
+  ["+"] = 6,
+  ["-"] = 6,
+  ["TK_CONCAT"] = 4,
+  ["TK_NE"] = 3,
+  ["TK_EQ"] = 3,
+  ["<"] = 3,
+  ["TK_LE"] = 3,
+  [">"] = 3,
+  ["TK_GE"] = 3,
+  ["TK_AND"] = 2,
+  ["TK_OR"] = 1,
+}
+
+function expr:parse(str)
+  self.LS = {}
+  self.L = {}
+  self.z = luaZ:init(luaZ:make_getS(str), nil, "=string")
+  luaX:setinput(self.L, self.LS, self.z, self.z.name)
+  self:token()
+  local v = self:expr()
+  if self.tok ~= "TK_EOS" then
+    io.stderr:write("parse error: some tokens unparsed\n")
+  end
+  return v
+end
+
+function expr:token()
+  self.tok = luaX:lex(self.LS, self.LS.t)
+  self.seminfo = self.LS.t.seminfo
+  return self.tok
+end
+
+function expr:simpleexpr()
+  local tok = self.tok
+  if tok == "TK_NIL" then
+    self:token()
+    return nil
+  elseif tok == "TK_TRUE" then
+    self:token()
+    return true
+  elseif tok == "TK_FALSE" then
+    self:token()
+    return false
+  elseif tok == "TK_NUMBER" or tok == "TK_STRING" then
+    self:token()
+    return self.seminfo
+  elseif tok == "(" then
+    self:token()
+    local v = self:expr()
+    if self.tok ~= ")" then
+      io.stderr:write("parse error: expecting ')' to delimit\n")
+    else
+      self:token()
+      return v
+    end
+  end
+  self:token()
+  io.stderr:write("parse error: "..tok.." encountered, substituting nil\n")
+  return nil
+end
+
+function expr:subexpr(prev_op)
+  local v, op
+  if self.unop[self.tok] then
+    op = self.tok
+    self:token()
+    v = self:subexpr(8)
+    if op == "TK_NOT" then
+      v = not v
+    else-- op == "-" then
+      v = -v
+    end
+  else
+    v = self:simpleexpr()
+  end
+  op = self.tok
+  if self.binop[op] then
+    while self.binop[op] and self.binop[op] > prev_op do
+      self:token()
+      local v2, next_op = self:subexpr(self.binop_r[op])
+      if op == "^" then
+        v = v ^ v2
+      elseif op == "*" then
+        v = v * v2
+      elseif op == "/" then
+        v = v / v2
+      elseif op == "+" then
+        v = v + v2
+      elseif op == "-" then
+        v = v - v2
+      elseif op == "TK_CONCAT" then
+        v = v .. v2
+      elseif op == "TK_NE" then
+        v = v ~= v2
+      elseif op == "TK_EQ" then
+        v = v == v2
+      elseif op == "<" then
+        v = v < v2
+      elseif op == "TK_LE" then
+        v = v <= v2
+      elseif op == ">" then
+        v = v > v2
+      elseif op == "TK_GE" then
+        v = v >= v2
+      elseif op == "TK_AND" then
+        v = v and v2
+      else-- op == "TK_OR" then
+        v = v or v2
+      end
+      op = next_op
+    end
+  end
+  return v, op
+end
+
+function expr:expr()
+  return self:subexpr(-1)
+end
+
+------------------------------------------------------------------------
+-- interactive test code
+------------------------------------------------------------------------
+
+io.stdout:write([[
+Lua-style expression parsing demonstrator.
+Type 'exit' or 'quit' at the prompt to terminate session.
+]])
+local done = false
+while not done do
+  io.stdout:write(":>")
+  io.stdout:flush()
+  local l = io.stdin:read("*l")
+  if l == nil or (l == "exit" or l == "quit" and not prevline) then
+    done = true
+  else
+    local v = tostring(expr:parse(l))
+    io.stdout:write(v, "\n")
+  end
+end--while
+--end
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/README b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/README
new file mode 100644
index 0000000..06fea0a
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/README
@@ -0,0 +1,54 @@
+orig-5.1.3
+
+This is a straightforward port of the Lua 5.1.3 front end (lexical
+analyzer, parser, code generator, binary chunk dumper.)
+
+The front end files are:
+
+        lopcodes.lua    opcode definition
+        lzio.lua        input streams
+        llex.lua        lexical analyzer
+        lparser.lua     parser
+        lcode.lua       code generator
+        ldump.lua       binary chunk dumper
+
+Status: operational, passes all current tests (non-exhaustive)
+
+Major test scripts are:
+
+        test/test_llex.lua              exercises test cases
+        test/test_lparser2.lua          exercises test cases
+
+luac.lua is a clone of Lua 5.1.3's luac.lua, except that it generates a
+binary chunk using Yueliang's front end implementation.
+
+See the README file in orig-5.0.3 for a discussion.
+
+The following is some performance data. Note that absolutely nothing has
+been done to optimize the code; it is meant to mirror the original C as
+an educational tool.
+
+                 lzio    llex    TOTAL  Speed (1)
+                (bytes) (bytes) (bytes) (KB/s)
+----------------------------------------------
+(in orig-5.0.3:)
+----------------------------------------------
+normal           2219   12639   14585    404.9
+stripped         1292    7618    8910
+----------------------------------------------
+(in orig-5.0.3:)
+----------------------------------------------
+normal           -      -       -        389.7
+stripped         -      -       -
+----------------------------------------------
+
+(1) Speed was benchmarked using a Sempron 3000+. Benchmark scripts are
+in the test directories. Best of first three figures quoted. This is a
+measurement of raw lexer speed, i.e. tokens are read but no processing
+is done. All files are read in entirely before running the lexer.
+
+For Lua 5.1.1, see Yueliang 0.2.1, which was the last release of Lua
+5.1.1 material.
+
+For Lua 5.1.2, see Yueliang 0.2.2, which was the last release of Lua
+5.1.2 material.
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/lcode.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/lcode.lua
new file mode 100644
index 0000000..4dc8548
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/lcode.lua
@@ -0,0 +1,1125 @@
+--[[--------------------------------------------------------------------
+
+  lcode.lua
+  Lua 5 code generator in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2007 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * one function manipulate a pointer argument with a simple data type
+--   (can't be emulated by a table, ambiguous), now returns that value:
+--   luaK:concat(fs, l1, l2)
+-- * luaM_growvector uses the faux luaY:growvector, for limit checking
+-- * some function parameters changed to boolean, additional code
+--   translates boolean back to 1/0 for instruction fields
+--
+-- Not implemented:
+-- * NOTE there is a failed assert in luaK:addk, a porting problem
+--
+-- Added:
+-- * constant MAXSTACK from llimits.h
+-- * luaK:ttisnumber(o) (from lobject.h)
+-- * luaK:nvalue(o) (from lobject.h)
+-- * luaK:setnilvalue(o) (from lobject.h)
+-- * luaK:setnvalue(o, x) (from lobject.h)
+-- * luaK:setbvalue(o, x) (from lobject.h)
+-- * luaK:sethvalue(o, x) (from lobject.h), parameter L deleted
+-- * luaK:setsvalue(o, x) (from lobject.h), parameter L deleted
+-- * luaK:numadd, luaK:numsub, luaK:nummul, luaK:numdiv, luaK:nummod,
+--   luaK:numpow, luaK:numunm, luaK:numisnan (from luaconf.h)
+-- * copyexp(e1, e2) added in luaK:posfix to copy expdesc struct
+--
+-- Changed in 5.1.x:
+-- * enum BinOpr has a new entry, OPR_MOD
+-- * enum UnOpr has a new entry, OPR_LEN
+-- * binopistest, unused in 5.0.x, has been deleted
+-- * macro setmultret is new
+-- * functions isnumeral, luaK_ret, boolK are new
+-- * funcion nilK was named nil_constant in 5.0.x
+-- * function interface changed: need_value, patchtestreg, concat
+-- * TObject now a TValue
+-- * functions luaK_setreturns, luaK_setoneret are new
+-- * function luaK:setcallreturns deleted, to be replaced by:
+--   luaK:setmultret, luaK:ret, luaK:setreturns, luaK:setoneret
+-- * functions constfolding, codearith, codecomp are new
+-- * luaK:codebinop has been deleted
+-- * function luaK_setlist is new
+-- * OPR_MULT renamed to OPR_MUL
+----------------------------------------------------------------------]]
+
+-- requires luaP, luaX, luaY
+luaK = {}
+
+------------------------------------------------------------------------
+-- constants used by code generator
+------------------------------------------------------------------------
+-- maximum stack for a Lua function
+luaK.MAXSTACK = 250  -- (from llimits.h)
+
+--[[--------------------------------------------------------------------
+-- other functions
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- emulation of TValue macros (these are from lobject.h)
+-- * TValue is a table since lcode passes references around
+-- * tt member field removed, using Lua's type() instead
+-- * for setsvalue, sethvalue, parameter L (deleted here) in lobject.h
+--   is used in an assert for testing, see checkliveness(g,obj)
+------------------------------------------------------------------------
+function luaK:ttisnumber(o)
+  if o then return type(o.value) == "number" else return false end
+end
+function luaK:nvalue(o) return o.value end
+function luaK:setnilvalue(o) o.value = nil end
+function luaK:setsvalue(o, x) o.value = x end
+luaK.setnvalue = luaK.setsvalue
+luaK.sethvalue = luaK.setsvalue
+luaK.setbvalue = luaK.setsvalue
+
+------------------------------------------------------------------------
+-- The luai_num* macros define the primitive operations over numbers.
+-- * this is not the entire set of primitive operations from luaconf.h
+-- * used in luaK:constfolding()
+------------------------------------------------------------------------
+function luaK:numadd(a, b) return a + b end
+function luaK:numsub(a, b) return a - b end
+function luaK:nummul(a, b) return a * b end
+function luaK:numdiv(a, b) return a / b end
+function luaK:nummod(a, b) return a % b end
+  -- ((a) - floor((a)/(b))*(b)) /* actual, for reference */
+function luaK:numpow(a, b) return a ^ b end
+function luaK:numunm(a) return -a end
+function luaK:numisnan(a) return not a == a end
+  -- a NaN cannot equal another NaN
+
+--[[--------------------------------------------------------------------
+-- code generator functions
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- Marks the end of a patch list. It is an invalid value both as an absolute
+-- address, and as a list link (would link an element to itself).
+------------------------------------------------------------------------
+luaK.NO_JUMP = -1
+
+------------------------------------------------------------------------
+-- grep "ORDER OPR" if you change these enums
+------------------------------------------------------------------------
+luaK.BinOpr = {
+  OPR_ADD = 0, OPR_SUB = 1, OPR_MUL = 2, OPR_DIV = 3, OPR_MOD = 4, OPR_POW = 5,
+  OPR_CONCAT = 6,
+  OPR_NE = 7, OPR_EQ = 8,
+  OPR_LT = 9, OPR_LE = 10, OPR_GT = 11, OPR_GE = 12,
+  OPR_AND = 13, OPR_OR = 14,
+  OPR_NOBINOPR = 15,
+}
+
+-- * UnOpr is used by luaK:prefix's op argument, but not directly used
+--   because the function receives the symbols as strings, e.g. "OPR_NOT"
+luaK.UnOpr = {
+  OPR_MINUS = 0, OPR_NOT = 1, OPR_LEN = 2, OPR_NOUNOPR = 3
+}
+
+------------------------------------------------------------------------
+-- returns the instruction object for given e (expdesc), was a macro
+------------------------------------------------------------------------
+function luaK:getcode(fs, e)
+  return fs.f.code[e.info]
+end
+
+------------------------------------------------------------------------
+-- codes an instruction with a signed Bx (sBx) field, was a macro
+-- * used in luaK:jump(), (lparser) luaY:forbody()
+------------------------------------------------------------------------
+function luaK:codeAsBx(fs, o, A, sBx)
+  return self:codeABx(fs, o, A, sBx + luaP.MAXARG_sBx)
+end
+
+------------------------------------------------------------------------
+-- set the expdesc e instruction for multiple returns, was a macro
+------------------------------------------------------------------------
+function luaK:setmultret(fs, e)
+  self:setreturns(fs, e, luaY.LUA_MULTRET)
+end
+
+------------------------------------------------------------------------
+-- there is a jump if patch lists are not identical, was a macro
+-- * used in luaK:exp2reg(), luaK:exp2anyreg(), luaK:exp2val()
+------------------------------------------------------------------------
+function luaK:hasjumps(e)
+  return e.t ~= e.f
+end
+
+------------------------------------------------------------------------
+-- true if the expression is a constant number (for constant folding)
+-- * used in constfolding(), infix()
+------------------------------------------------------------------------
+function luaK:isnumeral(e)
+  return e.k == "VKNUM" and e.t == self.NO_JUMP and e.f == self.NO_JUMP
+end
+
+------------------------------------------------------------------------
+-- codes loading of nil, optimization done if consecutive locations
+-- * used in luaK:discharge2reg(), (lparser) luaY:adjust_assign()
+------------------------------------------------------------------------
+function luaK:_nil(fs, from, n)
+  if fs.pc > fs.lasttarget then  -- no jumps to current position?
+    if fs.pc == 0 then  -- function start?
+      if from >= fs.nactvar then
+        return  -- positions are already clean
+      end
+    else
+      local previous = fs.f.code[fs.pc - 1]
+      if luaP:GET_OPCODE(previous) == "OP_LOADNIL" then
+        local pfrom = luaP:GETARG_A(previous)
+        local pto = luaP:GETARG_B(previous)
+        if pfrom <= from and from <= pto + 1 then  -- can connect both?
+          if from + n - 1 > pto then
+            luaP:SETARG_B(previous, from + n - 1)
+          end
+          return
+        end
+      end
+    end
+  end
+  self:codeABC(fs, "OP_LOADNIL", from, from + n - 1, 0)  -- else no optimization
+end
+
+------------------------------------------------------------------------
+--
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaK:jump(fs)
+  local jpc = fs.jpc  -- save list of jumps to here
+  fs.jpc = self.NO_JUMP
+  local j = self:codeAsBx(fs, "OP_JMP", 0, self.NO_JUMP)
+  j = self:concat(fs, j, jpc)  -- keep them on hold
+  return j
+end
+
+------------------------------------------------------------------------
+-- codes a RETURN instruction
+-- * used in luaY:close_func(), luaY:retstat()
+------------------------------------------------------------------------
+function luaK:ret(fs, first, nret)
+  self:codeABC(fs, "OP_RETURN", first, nret + 1, 0)
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:jumponcond(), luaK:codecomp()
+------------------------------------------------------------------------
+function luaK:condjump(fs, op, A, B, C)
+  self:codeABC(fs, op, A, B, C)
+  return self:jump(fs)
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:patchlistaux(), luaK:concat()
+------------------------------------------------------------------------
+function luaK:fixjump(fs, pc, dest)
+  local jmp = fs.f.code[pc]
+  local offset = dest - (pc + 1)
+  lua_assert(dest ~= self.NO_JUMP)
+  if math.abs(offset) > luaP.MAXARG_sBx then
+    luaX:syntaxerror(fs.ls, "control structure too long")
+  end
+  luaP:SETARG_sBx(jmp, offset)
+end
+
+------------------------------------------------------------------------
+-- returns current 'pc' and marks it as a jump target (to avoid wrong
+-- optimizations with consecutive instructions not in the same basic block).
+-- * used in multiple locations
+-- * fs.lasttarget tested only by luaK:_nil() when optimizing OP_LOADNIL
+------------------------------------------------------------------------
+function luaK:getlabel(fs)
+  fs.lasttarget = fs.pc
+  return fs.pc
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:need_value(), luaK:removevalues(), luaK:patchlistaux(),
+--   luaK:concat()
+------------------------------------------------------------------------
+function luaK:getjump(fs, pc)
+  local offset = luaP:GETARG_sBx(fs.f.code[pc])
+  if offset == self.NO_JUMP then  -- point to itself represents end of list
+    return self.NO_JUMP  -- end of list
+  else
+    return (pc + 1) + offset  -- turn offset into absolute position
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:need_value(), luaK:patchtestreg(), luaK:invertjump()
+------------------------------------------------------------------------
+function luaK:getjumpcontrol(fs, pc)
+  local pi = fs.f.code[pc]
+  local ppi = fs.f.code[pc - 1]
+  if pc >= 1 and luaP:testTMode(luaP:GET_OPCODE(ppi)) ~= 0 then
+    return ppi
+  else
+    return pi
+  end
+end
+
+------------------------------------------------------------------------
+-- check whether list has any jump that do not produce a value
+-- (or produce an inverted value)
+-- * return value changed to boolean
+-- * used only in luaK:exp2reg()
+------------------------------------------------------------------------
+function luaK:need_value(fs, list)
+  while list ~= self.NO_JUMP do
+    local i = self:getjumpcontrol(fs, list)
+    if luaP:GET_OPCODE(i) ~= "OP_TESTSET" then return true end
+    list = self:getjump(fs, list)
+  end
+  return false  -- not found
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:removevalues(), luaK:patchlistaux()
+------------------------------------------------------------------------
+function luaK:patchtestreg(fs, node, reg)
+  local i = self:getjumpcontrol(fs, node)
+  if luaP:GET_OPCODE(i) ~= "OP_TESTSET" then
+    return false  -- cannot patch other instructions
+  end
+  if reg ~= luaP.NO_REG and reg ~= luaP:GETARG_B(i) then
+    luaP:SETARG_A(i, reg)
+  else  -- no register to put value or register already has the value
+    -- due to use of a table as i, i cannot be replaced by another table
+    -- so the following is required; there is no change to ARG_C
+    luaP:SET_OPCODE(i, "OP_TEST")
+    local b = luaP:GETARG_B(i)
+    luaP:SETARG_A(i, b)
+    luaP:SETARG_B(i, 0)
+    -- *i = CREATE_ABC(OP_TEST, GETARG_B(*i), 0, GETARG_C(*i)); /* C */
+  end
+  return true
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in luaK:codenot()
+------------------------------------------------------------------------
+function luaK:removevalues(fs, list)
+  while list ~= self.NO_JUMP do
+    self:patchtestreg(fs, list, luaP.NO_REG)
+    list = self:getjump(fs, list)
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:dischargejpc(), luaK:patchlist(), luaK:exp2reg()
+------------------------------------------------------------------------
+function luaK:patchlistaux(fs, list, vtarget, reg, dtarget)
+  while list ~= self.NO_JUMP do
+    local _next = self:getjump(fs, list)
+    if self:patchtestreg(fs, list, reg) then
+      self:fixjump(fs, list, vtarget)
+    else
+      self:fixjump(fs, list, dtarget)  -- jump to default target
+    end
+    list = _next
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in luaK:code()
+------------------------------------------------------------------------
+function luaK:dischargejpc(fs)
+  self:patchlistaux(fs, fs.jpc, fs.pc, luaP.NO_REG, fs.pc)
+  fs.jpc = self.NO_JUMP
+end
+
+------------------------------------------------------------------------
+--
+-- * used in (lparser) luaY:whilestat(), luaY:repeatstat(), luaY:forbody()
+------------------------------------------------------------------------
+function luaK:patchlist(fs, list, target)
+  if target == fs.pc then
+    self:patchtohere(fs, list)
+  else
+    lua_assert(target < fs.pc)
+    self:patchlistaux(fs, list, target, luaP.NO_REG, target)
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaK:patchtohere(fs, list)
+  self:getlabel(fs)
+  fs.jpc = self:concat(fs, fs.jpc, list)
+end
+
+------------------------------------------------------------------------
+-- * l1 was a pointer, now l1 is returned and callee assigns the value
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaK:concat(fs, l1, l2)
+  if l2 == self.NO_JUMP then return l1
+  elseif l1 == self.NO_JUMP then
+    return l2
+  else
+    local list = l1
+    local _next = self:getjump(fs, list)
+    while _next ~= self.NO_JUMP do  -- find last element
+      list = _next
+      _next = self:getjump(fs, list)
+    end
+    self:fixjump(fs, list, l2)
+  end
+  return l1
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:reserveregs(), (lparser) luaY:forlist()
+------------------------------------------------------------------------
+function luaK:checkstack(fs, n)
+  local newstack = fs.freereg + n
+  if newstack > fs.f.maxstacksize then
+    if newstack >= self.MAXSTACK then
+      luaX:syntaxerror(fs.ls, "function or expression too complex")
+    end
+    fs.f.maxstacksize = newstack
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaK:reserveregs(fs, n)
+  self:checkstack(fs, n)
+  fs.freereg = fs.freereg + n
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:freeexp(), luaK:dischargevars()
+------------------------------------------------------------------------
+function luaK:freereg(fs, reg)
+  if not luaP:ISK(reg) and reg >= fs.nactvar then
+    fs.freereg = fs.freereg - 1
+    lua_assert(reg == fs.freereg)
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaK:freeexp(fs, e)
+  if e.k == "VNONRELOC" then
+    self:freereg(fs, e.info)
+  end
+end
+
+------------------------------------------------------------------------
+-- * TODO NOTE implementation is not 100% correct, since the assert fails
+-- * luaH_set, setobj deleted; direct table access used instead
+-- * used in luaK:stringK(), luaK:numberK(), luaK:boolK(), luaK:nilK()
+------------------------------------------------------------------------
+function luaK:addk(fs, k, v)
+  local L = fs.L
+  local idx = fs.h[k.value]
+  --TValue *idx = luaH_set(L, fs->h, k); /* C */
+  local f = fs.f
+  if self:ttisnumber(idx) then
+    --TODO this assert currently FAILS (last tested for 5.0.2)
+    --lua_assert(fs.f.k[self:nvalue(idx)] == v)
+    --lua_assert(luaO_rawequalObj(&fs->f->k[cast_int(nvalue(idx))], v)); /* C */
+    return self:nvalue(idx)
+  else -- constant not found; create a new entry
+    idx = {}
+    self:setnvalue(idx, fs.nk)
+    fs.h[k.value] = idx
+    -- setnvalue(idx, cast_num(fs->nk)); /* C */
+    luaY:growvector(L, f.k, fs.nk, f.sizek, nil,
+                    luaP.MAXARG_Bx, "constant table overflow")
+    -- loop to initialize empty f.k positions not required
+    f.k[fs.nk] = v
+    -- setobj(L, &f->k[fs->nk], v); /* C */
+    -- luaC_barrier(L, f, v); /* GC */
+    local nk = fs.nk
+    fs.nk = fs.nk + 1
+    return nk
+  end
+
+end
+
+------------------------------------------------------------------------
+-- creates and sets a string object
+-- * used in (lparser) luaY:codestring(), luaY:singlevar()
+------------------------------------------------------------------------
+function luaK:stringK(fs, s)
+  local o = {}  -- TValue
+  self:setsvalue(o, s)
+  return self:addk(fs, o, o)
+end
+
+------------------------------------------------------------------------
+-- creates and sets a number object
+-- * used in luaK:prefix() for negative (or negation of) numbers
+-- * used in (lparser) luaY:simpleexp(), luaY:fornum()
+------------------------------------------------------------------------
+function luaK:numberK(fs, r)
+  local o = {}  -- TValue
+  self:setnvalue(o, r)
+  return self:addk(fs, o, o)
+end
+
+------------------------------------------------------------------------
+-- creates and sets a boolean object
+-- * used only in luaK:exp2RK()
+------------------------------------------------------------------------
+function luaK:boolK(fs, b)
+  local o = {}  -- TValue
+  self:setbvalue(o, b)
+  return self:addk(fs, o, o)
+end
+
+------------------------------------------------------------------------
+-- creates and sets a nil object
+-- * used only in luaK:exp2RK()
+------------------------------------------------------------------------
+function luaK:nilK(fs)
+  local k, v = {}, {}  -- TValue
+  self:setnilvalue(v)
+  -- cannot use nil as key; instead use table itself to represent nil
+  self:sethvalue(k, fs.h)
+  return self:addk(fs, k, v)
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:setmultret(), (lparser) luaY:adjust_assign()
+------------------------------------------------------------------------
+function luaK:setreturns(fs, e, nresults)
+  if e.k == "VCALL" then  -- expression is an open function call?
+    luaP:SETARG_C(self:getcode(fs, e), nresults + 1)
+  elseif e.k == "VVARARG" then
+    luaP:SETARG_B(self:getcode(fs, e), nresults + 1);
+    luaP:SETARG_A(self:getcode(fs, e), fs.freereg);
+    luaK:reserveregs(fs, 1)
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:dischargevars(), (lparser) luaY:assignment()
+------------------------------------------------------------------------
+function luaK:setoneret(fs, e)
+  if e.k == "VCALL" then  -- expression is an open function call?
+    e.k = "VNONRELOC"
+    e.info = luaP:GETARG_A(self:getcode(fs, e))
+  elseif e.k == "VVARARG" then
+    luaP:SETARG_B(self:getcode(fs, e), 2)
+    e.k = "VRELOCABLE"  -- can relocate its simple result
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaK:dischargevars(fs, e)
+  local k = e.k
+  if k == "VLOCAL" then
+    e.k = "VNONRELOC"
+  elseif k == "VUPVAL" then
+    e.info = self:codeABC(fs, "OP_GETUPVAL", 0, e.info, 0)
+    e.k = "VRELOCABLE"
+  elseif k == "VGLOBAL" then
+    e.info = self:codeABx(fs, "OP_GETGLOBAL", 0, e.info)
+    e.k = "VRELOCABLE"
+  elseif k == "VINDEXED" then
+    self:freereg(fs, e.aux)
+    self:freereg(fs, e.info)
+    e.info = self:codeABC(fs, "OP_GETTABLE", 0, e.info, e.aux)
+    e.k = "VRELOCABLE"
+  elseif k == "VVARARG" or k == "VCALL" then
+    self:setoneret(fs, e)
+  else
+    -- there is one value available (somewhere)
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in luaK:exp2reg()
+------------------------------------------------------------------------
+function luaK:code_label(fs, A, b, jump)
+  self:getlabel(fs)  -- those instructions may be jump targets
+  return self:codeABC(fs, "OP_LOADBOOL", A, b, jump)
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:discharge2anyreg(), luaK:exp2reg()
+------------------------------------------------------------------------
+function luaK:discharge2reg(fs, e, reg)
+  self:dischargevars(fs, e)
+  local k = e.k
+  if k == "VNIL" then
+    self:_nil(fs, reg, 1)
+  elseif k == "VFALSE" or k == "VTRUE" then
+    self:codeABC(fs, "OP_LOADBOOL", reg, (e.k == "VTRUE") and 1 or 0, 0)
+  elseif k == "VK" then
+    self:codeABx(fs, "OP_LOADK", reg, e.info)
+  elseif k == "VKNUM" then
+    self:codeABx(fs, "OP_LOADK", reg, self:numberK(fs, e.nval))
+  elseif k == "VRELOCABLE" then
+    local pc = self:getcode(fs, e)
+    luaP:SETARG_A(pc, reg)
+  elseif k == "VNONRELOC" then
+    if reg ~= e.info then
+      self:codeABC(fs, "OP_MOVE", reg, e.info, 0)
+    end
+  else
+    lua_assert(e.k == "VVOID" or e.k == "VJMP")
+    return  -- nothing to do...
+  end
+  e.info = reg
+  e.k = "VNONRELOC"
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:jumponcond(), luaK:codenot()
+------------------------------------------------------------------------
+function luaK:discharge2anyreg(fs, e)
+  if e.k ~= "VNONRELOC" then
+    self:reserveregs(fs, 1)
+    self:discharge2reg(fs, e, fs.freereg - 1)
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:exp2nextreg(), luaK:exp2anyreg(), luaK:storevar()
+------------------------------------------------------------------------
+function luaK:exp2reg(fs, e, reg)
+  self:discharge2reg(fs, e, reg)
+  if e.k == "VJMP" then
+    e.t = self:concat(fs, e.t, e.info)  -- put this jump in 't' list
+  end
+  if self:hasjumps(e) then
+    local final  -- position after whole expression
+    local p_f = self.NO_JUMP  -- position of an eventual LOAD false
+    local p_t = self.NO_JUMP  -- position of an eventual LOAD true
+    if self:need_value(fs, e.t) or self:need_value(fs, e.f) then
+      local fj = (e.k == "VJMP") and self.NO_JUMP or self:jump(fs)
+      p_f = self:code_label(fs, reg, 0, 1)
+      p_t = self:code_label(fs, reg, 1, 0)
+      self:patchtohere(fs, fj)
+    end
+    final = self:getlabel(fs)
+    self:patchlistaux(fs, e.f, final, reg, p_f)
+    self:patchlistaux(fs, e.t, final, reg, p_t)
+  end
+  e.f, e.t = self.NO_JUMP, self.NO_JUMP
+  e.info = reg
+  e.k = "VNONRELOC"
+end
+
+------------------------------------------------------------------------
+--
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaK:exp2nextreg(fs, e)
+  self:dischargevars(fs, e)
+  self:freeexp(fs, e)
+  self:reserveregs(fs, 1)
+  self:exp2reg(fs, e, fs.freereg - 1)
+end
+
+------------------------------------------------------------------------
+--
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaK:exp2anyreg(fs, e)
+  self:dischargevars(fs, e)
+  if e.k == "VNONRELOC" then
+    if not self:hasjumps(e) then  -- exp is already in a register
+      return e.info
+    end
+    if e.info >= fs.nactvar then  -- reg. is not a local?
+      self:exp2reg(fs, e, e.info)  -- put value on it
+      return e.info
+    end
+  end
+  self:exp2nextreg(fs, e)  -- default
+  return e.info
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:exp2RK(), luaK:prefix(), luaK:posfix()
+-- * used in (lparser) luaY:yindex()
+------------------------------------------------------------------------
+function luaK:exp2val(fs, e)
+  if self:hasjumps(e) then
+    self:exp2anyreg(fs, e)
+  else
+    self:dischargevars(fs, e)
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaK:exp2RK(fs, e)
+  self:exp2val(fs, e)
+  local k = e.k
+  if k == "VKNUM" or k == "VTRUE" or k == "VFALSE" or k == "VNIL" then
+    if fs.nk <= luaP.MAXINDEXRK then  -- constant fit in RK operand?
+      -- converted from a 2-deep ternary operator expression
+      if e.k == "VNIL" then
+        e.info = self:nilK(fs)
+      else
+        e.info = (e.k == "VKNUM") and self:numberK(fs, e.nval)
+                                  or self:boolK(fs, e.k == "VTRUE")
+      end
+      e.k = "VK"
+      return luaP:RKASK(e.info)
+    end
+  elseif k == "VK" then
+    if e.info <= luaP.MAXINDEXRK then  -- constant fit in argC?
+      return luaP:RKASK(e.info)
+    end
+  else
+    -- default
+  end
+  -- not a constant in the right range: put it in a register
+  return self:exp2anyreg(fs, e)
+end
+
+------------------------------------------------------------------------
+--
+-- * used in (lparser) luaY:assignment(), luaY:localfunc(), luaY:funcstat()
+------------------------------------------------------------------------
+function luaK:storevar(fs, var, ex)
+  local k = var.k
+  if k == "VLOCAL" then
+    self:freeexp(fs, ex)
+    self:exp2reg(fs, ex, var.info)
+    return
+  elseif k == "VUPVAL" then
+    local e = self:exp2anyreg(fs, ex)
+    self:codeABC(fs, "OP_SETUPVAL", e, var.info, 0)
+  elseif k == "VGLOBAL" then
+    local e = self:exp2anyreg(fs, ex)
+    self:codeABx(fs, "OP_SETGLOBAL", e, var.info)
+  elseif k == "VINDEXED" then
+    local e = self:exp2RK(fs, ex)
+    self:codeABC(fs, "OP_SETTABLE", var.info, var.aux, e)
+  else
+    lua_assert(0)  -- invalid var kind to store
+  end
+  self:freeexp(fs, ex)
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in (lparser) luaY:primaryexp()
+------------------------------------------------------------------------
+function luaK:_self(fs, e, key)
+  self:exp2anyreg(fs, e)
+  self:freeexp(fs, e)
+  local func = fs.freereg
+  self:reserveregs(fs, 2)
+  self:codeABC(fs, "OP_SELF", func, e.info, self:exp2RK(fs, key))
+  self:freeexp(fs, key)
+  e.info = func
+  e.k = "VNONRELOC"
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:goiftrue(), luaK:codenot()
+------------------------------------------------------------------------
+function luaK:invertjump(fs, e)
+  local pc = self:getjumpcontrol(fs, e.info)
+  lua_assert(luaP:testTMode(luaP:GET_OPCODE(pc)) ~= 0 and
+             luaP:GET_OPCODE(pc) ~= "OP_TESTSET" and
+             luaP:GET_OPCODE(pc) ~= "OP_TEST")
+  luaP:SETARG_A(pc, (luaP:GETARG_A(pc) == 0) and 1 or 0)
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:goiftrue(), luaK:goiffalse()
+------------------------------------------------------------------------
+function luaK:jumponcond(fs, e, cond)
+  if e.k == "VRELOCABLE" then
+    local ie = self:getcode(fs, e)
+    if luaP:GET_OPCODE(ie) == "OP_NOT" then
+      fs.pc = fs.pc - 1  -- remove previous OP_NOT
+      return self:condjump(fs, "OP_TEST", luaP:GETARG_B(ie), 0, cond and 0 or 1)
+    end
+    -- else go through
+  end
+  self:discharge2anyreg(fs, e)
+  self:freeexp(fs, e)
+  return self:condjump(fs, "OP_TESTSET", luaP.NO_REG, e.info, cond and 1 or 0)
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:infix(), (lparser) luaY:cond()
+------------------------------------------------------------------------
+function luaK:goiftrue(fs, e)
+  local pc  -- pc of last jump
+  self:dischargevars(fs, e)
+  local k = e.k
+  if k == "VK" or k == "VKNUM" or k == "VTRUE" then
+    pc = self.NO_JUMP  -- always true; do nothing
+  elseif k == "VFALSE" then
+    pc = self:jump(fs)  -- always jump
+  elseif k == "VJMP" then
+    self:invertjump(fs, e)
+    pc = e.info
+  else
+    pc = self:jumponcond(fs, e, false)
+  end
+  e.f = self:concat(fs, e.f, pc)  -- insert last jump in `f' list
+  self:patchtohere(fs, e.t)
+  e.t = self.NO_JUMP
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:infix()
+------------------------------------------------------------------------
+function luaK:goiffalse(fs, e)
+  local pc  -- pc of last jump
+  self:dischargevars(fs, e)
+  local k = e.k
+  if k == "VNIL" or k == "VFALSE"then
+    pc = self.NO_JUMP  -- always false; do nothing
+  elseif k == "VTRUE" then
+    pc = self:jump(fs)  -- always jump
+  elseif k == "VJMP" then
+    pc = e.info
+  else
+    pc = self:jumponcond(fs, e, true)
+  end
+  e.t = self:concat(fs, e.t, pc)  -- insert last jump in `t' list
+  self:patchtohere(fs, e.f)
+  e.f = self.NO_JUMP
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in luaK:prefix()
+------------------------------------------------------------------------
+function luaK:codenot(fs, e)
+  self:dischargevars(fs, e)
+  local k = e.k
+  if k == "VNIL" or k == "VFALSE" then
+    e.k = "VTRUE"
+  elseif k == "VK" or k == "VKNUM" or k == "VTRUE" then
+    e.k = "VFALSE"
+  elseif k == "VJMP" then
+    self:invertjump(fs, e)
+  elseif k == "VRELOCABLE" or k == "VNONRELOC" then
+    self:discharge2anyreg(fs, e)
+    self:freeexp(fs, e)
+    e.info = self:codeABC(fs, "OP_NOT", 0, e.info, 0)
+    e.k = "VRELOCABLE"
+  else
+    lua_assert(0)  -- cannot happen
+  end
+  -- interchange true and false lists
+  e.f, e.t = e.t, e.f
+  self:removevalues(fs, e.f)
+  self:removevalues(fs, e.t)
+end
+
+------------------------------------------------------------------------
+--
+-- * used in (lparser) luaY:field(), luaY:primaryexp()
+------------------------------------------------------------------------
+function luaK:indexed(fs, t, k)
+  t.aux = self:exp2RK(fs, k)
+  t.k = "VINDEXED"
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in luaK:codearith()
+------------------------------------------------------------------------
+function luaK:constfolding(op, e1, e2)
+  local r
+  if not self:isnumeral(e1) or not self:isnumeral(e2) then return false end
+  local v1 = e1.nval
+  local v2 = e2.nval
+  if op == "OP_ADD" then
+    r = self:numadd(v1, v2)
+  elseif op == "OP_SUB" then
+    r = self:numsub(v1, v2)
+  elseif op == "OP_MUL" then
+    r = self:nummul(v1, v2)
+  elseif op == "OP_DIV" then
+    if v2 == 0 then return false end  -- do not attempt to divide by 0
+    r = self:numdiv(v1, v2)
+  elseif op == "OP_MOD" then
+    if v2 == 0 then return false end  -- do not attempt to divide by 0
+    r = self:nummod(v1, v2)
+  elseif op == "OP_POW" then
+    r = self:numpow(v1, v2)
+  elseif op == "OP_UNM" then
+    r = self:numunm(v1)
+  elseif op == "OP_LEN" then
+    return false  -- no constant folding for 'len'
+  else
+    lua_assert(0)
+    r = 0
+  end
+  if self:numisnan(r) then return false end  -- do not attempt to produce NaN
+  e1.nval = r
+  return true
+end
+
+------------------------------------------------------------------------
+--
+-- * used in luaK:prefix(), luaK:posfix()
+------------------------------------------------------------------------
+function luaK:codearith(fs, op, e1, e2)
+  if self:constfolding(op, e1, e2) then
+    return
+  else
+    local o2 = (op ~= "OP_UNM" and op ~= "OP_LEN") and self:exp2RK(fs, e2) or 0
+    local o1 = self:exp2RK(fs, e1)
+    if o1 > o2 then
+      self:freeexp(fs, e1)
+      self:freeexp(fs, e2)
+    else
+      self:freeexp(fs, e2)
+      self:freeexp(fs, e1)
+    end
+    e1.info = self:codeABC(fs, op, 0, o1, o2)
+    e1.k = "VRELOCABLE"
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in luaK:posfix()
+------------------------------------------------------------------------
+function luaK:codecomp(fs, op, cond, e1, e2)
+  local o1 = self:exp2RK(fs, e1)
+  local o2 = self:exp2RK(fs, e2)
+  self:freeexp(fs, e2)
+  self:freeexp(fs, e1)
+  if cond == 0 and op ~= "OP_EQ" then
+    -- exchange args to replace by `<' or `<='
+    o1, o2 = o2, o1  -- o1 <==> o2
+    cond = 1
+  end
+  e1.info = self:condjump(fs, op, cond, o1, o2)
+  e1.k = "VJMP"
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in (lparser) luaY:subexpr()
+------------------------------------------------------------------------
+function luaK:prefix(fs, op, e)
+  local e2 = {}  -- expdesc
+  e2.t, e2.f = self.NO_JUMP, self.NO_JUMP
+  e2.k = "VKNUM"
+  e2.nval = 0
+  if op == "OPR_MINUS" then
+    if not self:isnumeral(e) then
+      self:exp2anyreg(fs, e)  -- cannot operate on non-numeric constants
+    end
+    self:codearith(fs, "OP_UNM", e, e2)
+  elseif op == "OPR_NOT" then
+    self:codenot(fs, e)
+  elseif op == "OPR_LEN" then
+    self:exp2anyreg(fs, e)  -- cannot operate on constants
+    self:codearith(fs, "OP_LEN", e, e2)
+  else
+    lua_assert(0)
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in (lparser) luaY:subexpr()
+------------------------------------------------------------------------
+function luaK:infix(fs, op, v)
+  if op == "OPR_AND" then
+    self:goiftrue(fs, v)
+  elseif op == "OPR_OR" then
+    self:goiffalse(fs, v)
+  elseif op == "OPR_CONCAT" then
+    self:exp2nextreg(fs, v)  -- operand must be on the 'stack'
+  elseif op == "OPR_ADD" or op == "OPR_SUB" or
+         op == "OPR_MUL" or op == "OPR_DIV" or
+         op == "OPR_MOD" or op == "OPR_POW" then
+    if not self:isnumeral(v) then self:exp2RK(fs, v) end
+  else
+    self:exp2RK(fs, v)
+  end
+end
+
+------------------------------------------------------------------------
+--
+-- * used only in (lparser) luaY:subexpr()
+------------------------------------------------------------------------
+-- table lookups to simplify testing
+luaK.arith_op = {
+  OPR_ADD = "OP_ADD", OPR_SUB = "OP_SUB", OPR_MUL = "OP_MUL",
+  OPR_DIV = "OP_DIV", OPR_MOD = "OP_MOD", OPR_POW = "OP_POW",
+}
+luaK.comp_op = {
+  OPR_EQ = "OP_EQ", OPR_NE = "OP_EQ", OPR_LT = "OP_LT",
+  OPR_LE = "OP_LE", OPR_GT = "OP_LT", OPR_GE = "OP_LE",
+}
+luaK.comp_cond = {
+  OPR_EQ = 1, OPR_NE = 0, OPR_LT = 1,
+  OPR_LE = 1, OPR_GT = 0, OPR_GE = 0,
+}
+function luaK:posfix(fs, op, e1, e2)
+  -- needed because e1 = e2 doesn't copy values...
+  -- * in 5.0.x, only k/info/aux/t/f copied, t for AND, f for OR
+  --   but here, all elements are copied for completeness' sake
+  local function copyexp(e1, e2)
+    e1.k = e2.k
+    e1.info = e2.info; e1.aux = e2.aux
+    e1.nval = e2.nval
+    e1.t = e2.t; e1.f = e2.f
+  end
+  if op == "OPR_AND" then
+    lua_assert(e1.t == self.NO_JUMP)  -- list must be closed
+    self:dischargevars(fs, e2)
+    e2.f = self:concat(fs, e2.f, e1.f)
+    copyexp(e1, e2)
+  elseif op == "OPR_OR" then
+    lua_assert(e1.f == self.NO_JUMP)  -- list must be closed
+    self:dischargevars(fs, e2)
+    e2.t = self:concat(fs, e2.t, e1.t)
+    copyexp(e1, e2)
+  elseif op == "OPR_CONCAT" then
+    self:exp2val(fs, e2)
+    if e2.k == "VRELOCABLE" and luaP:GET_OPCODE(self:getcode(fs, e2)) == "OP_CONCAT" then
+      lua_assert(e1.info == luaP:GETARG_B(self:getcode(fs, e2)) - 1)
+      self:freeexp(fs, e1)
+      luaP:SETARG_B(self:getcode(fs, e2), e1.info)
+      e1.k = "VRELOCABLE"
+      e1.info = e2.info
+    else
+      self:exp2nextreg(fs, e2)  -- operand must be on the 'stack'
+      self:codearith(fs, "OP_CONCAT", e1, e2)
+    end
+  else
+    -- the following uses a table lookup in place of conditionals
+    local arith = self.arith_op[op]
+    if arith then
+      self:codearith(fs, arith, e1, e2)
+    else
+      local comp = self.comp_op[op]
+      if comp then
+        self:codecomp(fs, comp, self.comp_cond[op], e1, e2)
+      else
+        lua_assert(0)
+      end
+    end--if arith
+  end--if op
+end
+
+------------------------------------------------------------------------
+-- adjusts debug information for last instruction written, in order to
+-- change the line where item comes into existence
+-- * used in (lparser) luaY:funcargs(), luaY:forbody(), luaY:funcstat()
+------------------------------------------------------------------------
+function luaK:fixline(fs, line)
+  fs.f.lineinfo[fs.pc - 1] = line
+end
+
+------------------------------------------------------------------------
+-- general function to write an instruction into the instruction buffer,
+-- sets debug information too
+-- * used in luaK:codeABC(), luaK:codeABx()
+-- * called directly by (lparser) luaY:whilestat()
+------------------------------------------------------------------------
+function luaK:code(fs, i, line)
+  local f = fs.f
+  self:dischargejpc(fs)  -- 'pc' will change
+  -- put new instruction in code array
+  luaY:growvector(fs.L, f.code, fs.pc, f.sizecode, nil,
+                  luaY.MAX_INT, "code size overflow")
+  f.code[fs.pc] = i
+  -- save corresponding line information
+  luaY:growvector(fs.L, f.lineinfo, fs.pc, f.sizelineinfo, nil,
+                  luaY.MAX_INT, "code size overflow")
+  f.lineinfo[fs.pc] = line
+  local pc = fs.pc
+  fs.pc = fs.pc + 1
+  return pc
+end
+
+------------------------------------------------------------------------
+-- writes an instruction of type ABC
+-- * calls luaK:code()
+------------------------------------------------------------------------
+function luaK:codeABC(fs, o, a, b, c)
+  lua_assert(luaP:getOpMode(o) == luaP.OpMode.iABC)
+  lua_assert(luaP:getBMode(o) ~= luaP.OpArgMask.OpArgN or b == 0)
+  lua_assert(luaP:getCMode(o) ~= luaP.OpArgMask.OpArgN or c == 0)
+  return self:code(fs, luaP:CREATE_ABC(o, a, b, c), fs.ls.lastline)
+end
+
+------------------------------------------------------------------------
+-- writes an instruction of type ABx
+-- * calls luaK:code(), called by luaK:codeAsBx()
+------------------------------------------------------------------------
+function luaK:codeABx(fs, o, a, bc)
+  lua_assert(luaP:getOpMode(o) == luaP.OpMode.iABx or
+             luaP:getOpMode(o) == luaP.OpMode.iAsBx)
+  lua_assert(luaP:getCMode(o) == luaP.OpArgMask.OpArgN)
+  return self:code(fs, luaP:CREATE_ABx(o, a, bc), fs.ls.lastline)
+end
+
+------------------------------------------------------------------------
+--
+-- * used in (lparser) luaY:closelistfield(), luaY:lastlistfield()
+------------------------------------------------------------------------
+function luaK:setlist(fs, base, nelems, tostore)
+  local c = math.floor((nelems - 1)/luaP.LFIELDS_PER_FLUSH) + 1
+  local b = (tostore == luaY.LUA_MULTRET) and 0 or tostore
+  lua_assert(tostore ~= 0)
+  if c <= luaP.MAXARG_C then
+    self:codeABC(fs, "OP_SETLIST", base, b, c)
+  else
+    self:codeABC(fs, "OP_SETLIST", base, b, 0)
+    self:code(fs, luaP:CREATE_Inst(c), fs.ls.lastline)
+  end
+  fs.freereg = base + 1  -- free registers with list values
+end
+
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/ldump.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/ldump.lua
new file mode 100644
index 0000000..b9380e1
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/ldump.lua
@@ -0,0 +1,372 @@
+--[[--------------------------------------------------------------------
+
+  ldump.lua
+  Save precompiled Lua chunks
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * WARNING! byte order (little endian) and data type sizes for header
+--   signature values hard-coded; see luaU:header
+-- * chunk writer generators are included, see below
+-- * one significant difference is that instructions are still in table
+--   form (with OP/A/B/C/Bx fields) and luaP:Instruction() is needed to
+--   convert them into 4-char strings
+--
+-- Not implemented:
+-- * DumpVar, DumpMem has been removed
+-- * DumpVector folded into folded into DumpDebug, DumpCode
+--
+-- Added:
+-- * for convenience, the following two functions have been added:
+--   luaU:make_setS: create a chunk writer that writes to a string
+--   luaU:make_setF: create a chunk writer that writes to a file
+--   (lua.h contains a typedef for lua_Writer/lua_Chunkwriter, and
+--    a Lua-based implementation exists, writer() in lstrlib.c)
+-- * luaU:ttype(o) (from lobject.h)
+-- * for converting number types to its binary equivalent:
+--   luaU:from_double(x): encode double value for writing
+--   luaU:from_int(x): encode integer value for writing
+--     (error checking is limited for these conversion functions)
+--     (double conversion does not support denormals or NaNs)
+--
+-- Changed in 5.1.x:
+-- * the dumper was mostly rewritten in Lua 5.1.x, so notes on the
+--   differences between 5.0.x and 5.1.x is limited
+-- * LUAC_VERSION bumped to 0x51, LUAC_FORMAT added
+-- * developer is expected to adjust LUAC_FORMAT in order to identify
+--   non-standard binary chunk formats
+-- * header signature code is smaller, has been simplified, and is
+--   tested as a single unit; its logic is shared with the undumper
+-- * no more endian conversion, invalid endianness mean rejection
+-- * opcode field sizes are no longer exposed in the header
+-- * code moved to front of a prototype, followed by constants
+-- * debug information moved to the end of the binary chunk, and the
+--   relevant functions folded into a single function
+-- * luaU:dump returns a writer status code
+-- * chunk writer now implements status code because dumper uses it
+-- * luaU:endianness removed
+----------------------------------------------------------------------]]
+
+--requires luaP
+luaU = {}
+
+-- mark for precompiled code ('<esc>Lua') (from lua.h)
+luaU.LUA_SIGNATURE = "\27Lua"
+
+-- constants used by dumper (from lua.h)
+luaU.LUA_TNUMBER  = 3
+luaU.LUA_TSTRING  = 4
+luaU.LUA_TNIL     = 0
+luaU.LUA_TBOOLEAN = 1
+luaU.LUA_TNONE    = -1
+
+-- constants for header of binary files (from lundump.h)
+luaU.LUAC_VERSION    = 0x51     -- this is Lua 5.1
+luaU.LUAC_FORMAT     = 0        -- this is the official format
+luaU.LUAC_HEADERSIZE = 12       -- size of header of binary files
+
+--[[--------------------------------------------------------------------
+-- Additional functions to handle chunk writing
+-- * to use make_setS and make_setF, see test_ldump.lua elsewhere
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- create a chunk writer that writes to a string
+-- * returns the writer function and a table containing the string
+-- * to get the final result, look in buff.data
+------------------------------------------------------------------------
+function luaU:make_setS()
+  local buff = {}
+        buff.data = ""
+  local writer =
+    function(s, buff)  -- chunk writer
+      if not s then return 0 end
+      buff.data = buff.data..s
+      return 0
+    end
+  return writer, buff
+end
+
+------------------------------------------------------------------------
+-- create a chunk writer that writes to a file
+-- * returns the writer function and a table containing the file handle
+-- * if a nil is passed, then writer should close the open file
+------------------------------------------------------------------------
+function luaU:make_setF(filename)
+  local buff = {}
+        buff.h = io.open(filename, "wb")
+  if not buff.h then return nil end
+  local writer =
+    function(s, buff)  -- chunk writer
+      if not buff.h then return 0 end
+      if not s then
+        if buff.h:close() then return 0 end
+      else
+        if buff.h:write(s) then return 0 end
+      end
+      return 1
+    end
+  return writer, buff
+end
+
+------------------------------------------------------------------------
+-- works like the lobject.h version except that TObject used in these
+-- scripts only has a 'value' field, no 'tt' field (native types used)
+------------------------------------------------------------------------
+function luaU:ttype(o)
+  local tt = type(o.value)
+  if tt == "number" then return self.LUA_TNUMBER
+  elseif tt == "string" then return self.LUA_TSTRING
+  elseif tt == "nil" then return self.LUA_TNIL
+  elseif tt == "boolean" then return self.LUA_TBOOLEAN
+  else
+    return self.LUA_TNONE  -- the rest should not appear
+  end
+end
+
+-----------------------------------------------------------------------
+-- converts a IEEE754 double number to an 8-byte little-endian string
+-- * luaU:from_double() and luaU:from_int() are adapted from ChunkBake
+-- * supports +/- Infinity, but not denormals or NaNs
+-----------------------------------------------------------------------
+function luaU:from_double(x)
+  local function grab_byte(v)
+    local c = v % 256
+    return (v - c) / 256, string.char(c)
+  end
+  local sign = 0
+  if x < 0 then sign = 1; x = -x end
+  local mantissa, exponent = math.frexp(x)
+  if x == 0 then -- zero
+    mantissa, exponent = 0, 0
+  elseif x == 1/0 then
+    mantissa, exponent = 0, 2047
+  else
+    mantissa = (mantissa * 2 - 1) * math.ldexp(0.5, 53)
+    exponent = exponent + 1022
+  end
+  local v, byte = "" -- convert to bytes
+  x = math.floor(mantissa)
+  for i = 1,6 do
+    x, byte = grab_byte(x); v = v..byte -- 47:0
+  end
+  x, byte = grab_byte(exponent * 16 + x); v = v..byte -- 55:48
+  x, byte = grab_byte(sign * 128 + x); v = v..byte -- 63:56
+  return v
+end
+
+-----------------------------------------------------------------------
+-- converts a number to a little-endian 32-bit integer string
+-- * input value assumed to not overflow, can be signed/unsigned
+-----------------------------------------------------------------------
+function luaU:from_int(x)
+  local v = ""
+  x = math.floor(x)
+  if x < 0 then x = 4294967296 + x end  -- ULONG_MAX+1
+  for i = 1, 4 do
+    local c = x % 256
+    v = v..string.char(c); x = math.floor(x / 256)
+  end
+  return v
+end
+
+--[[--------------------------------------------------------------------
+-- Functions to make a binary chunk
+-- * many functions have the size parameter removed, since output is
+--   in the form of a string and some sizes are implicit or hard-coded
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- struct DumpState:
+--   L  -- lua_State (not used in this script)
+--   writer  -- lua_Writer (chunk writer function)
+--   data  -- void* (chunk writer context or data already written)
+--   strip  -- if true, don't write any debug information
+--   status  -- if non-zero, an error has occured
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- dumps a block of bytes
+-- * lua_unlock(D.L), lua_lock(D.L) unused
+------------------------------------------------------------------------
+function luaU:DumpBlock(b, D)
+  if D.status == 0 then
+    -- lua_unlock(D->L);
+    D.status = D.write(b, D.data)
+    -- lua_lock(D->L);
+  end
+end
+
+------------------------------------------------------------------------
+-- dumps a char
+------------------------------------------------------------------------
+function luaU:DumpChar(y, D)
+  self:DumpBlock(string.char(y), D)
+end
+
+------------------------------------------------------------------------
+-- dumps a 32-bit signed or unsigned integer (for int) (hard-coded)
+------------------------------------------------------------------------
+function luaU:DumpInt(x, D)
+  self:DumpBlock(self:from_int(x), D)
+end
+
+------------------------------------------------------------------------
+-- dumps a lua_Number (hard-coded as a double)
+------------------------------------------------------------------------
+function luaU:DumpNumber(x, D)
+  self:DumpBlock(self:from_double(x), D)
+end
+
+------------------------------------------------------------------------
+-- dumps a Lua string (size type is hard-coded)
+------------------------------------------------------------------------
+function luaU:DumpString(s, D)
+  if s == nil then
+    self:DumpInt(0, D)
+  else
+    s = s.."\0"  -- include trailing '\0'
+    self:DumpInt(#s, D)
+    self:DumpBlock(s, D)
+  end
+end
+
+------------------------------------------------------------------------
+-- dumps instruction block from function prototype
+------------------------------------------------------------------------
+function luaU:DumpCode(f, D)
+  local n = f.sizecode
+  --was DumpVector
+  self:DumpInt(n, D)
+  for i = 0, n - 1 do
+    self:DumpBlock(luaP:Instruction(f.code[i]), D)
+  end
+end
+
+------------------------------------------------------------------------
+-- dump constant pool from function prototype
+-- * bvalue(o), nvalue(o) and rawtsvalue(o) macros removed
+------------------------------------------------------------------------
+function luaU:DumpConstants(f, D)
+  local n = f.sizek
+  self:DumpInt(n, D)
+  for i = 0, n - 1 do
+    local o = f.k[i]  -- TValue
+    local tt = self:ttype(o)
+    self:DumpChar(tt, D)
+    if tt == self.LUA_TNIL then
+    elseif tt == self.LUA_TBOOLEAN then
+      self:DumpChar(o.value and 1 or 0, D)
+    elseif tt == self.LUA_TNUMBER then
+      self:DumpNumber(o.value, D)
+    elseif tt == self.LUA_TSTRING then
+      self:DumpString(o.value, D)
+    else
+      --lua_assert(0)  -- cannot happen
+    end
+  end
+  n = f.sizep
+  self:DumpInt(n, D)
+  for i = 0, n - 1 do
+    self:DumpFunction(f.p[i], f.source, D)
+  end
+end
+
+------------------------------------------------------------------------
+-- dump debug information
+------------------------------------------------------------------------
+function luaU:DumpDebug(f, D)
+  local n
+  n = D.strip and 0 or f.sizelineinfo           -- dump line information
+  --was DumpVector
+  self:DumpInt(n, D)
+  for i = 0, n - 1 do
+    self:DumpInt(f.lineinfo[i], D)
+  end
+  n = D.strip and 0 or f.sizelocvars            -- dump local information
+  self:DumpInt(n, D)
+  for i = 0, n - 1 do
+    self:DumpString(f.locvars[i].varname, D)
+    self:DumpInt(f.locvars[i].startpc, D)
+    self:DumpInt(f.locvars[i].endpc, D)
+  end
+  n = D.strip and 0 or f.sizeupvalues           -- dump upvalue information
+  self:DumpInt(n, D)
+  for i = 0, n - 1 do
+    self:DumpString(f.upvalues[i], D)
+  end
+end
+
+------------------------------------------------------------------------
+-- dump child function prototypes from function prototype
+------------------------------------------------------------------------
+function luaU:DumpFunction(f, p, D)
+  local source = f.source
+  if source == p or D.strip then source = nil end
+  self:DumpString(source, D)
+  self:DumpInt(f.lineDefined, D)
+  self:DumpInt(f.lastlinedefined, D)
+  self:DumpChar(f.nups, D)
+  self:DumpChar(f.numparams, D)
+  self:DumpChar(f.is_vararg, D)
+  self:DumpChar(f.maxstacksize, D)
+  self:DumpCode(f, D)
+  self:DumpConstants(f, D)
+  self:DumpDebug(f, D)
+end
+
+------------------------------------------------------------------------
+-- dump Lua header section (some sizes hard-coded)
+------------------------------------------------------------------------
+function luaU:DumpHeader(D)
+  local h = self:header()
+  assert(#h == self.LUAC_HEADERSIZE) -- fixed buffer now an assert
+  self:DumpBlock(h, D)
+end
+
+------------------------------------------------------------------------
+-- make header (from lundump.c)
+-- returns the header string
+------------------------------------------------------------------------
+function luaU:header()
+ local x = 1
+ return self.LUA_SIGNATURE..
+        string.char(
+          self.LUAC_VERSION,
+          self.LUAC_FORMAT,
+          x,                    -- endianness (1=little)
+          4,                    -- sizeof(int)
+          4,                    -- sizeof(size_t)
+          4,                    -- sizeof(Instruction)
+          8,                    -- sizeof(lua_Number)
+          0)                    -- is lua_Number integral?
+end
+
+------------------------------------------------------------------------
+-- dump Lua function as precompiled chunk
+-- (lua_State* L, const Proto* f, lua_Writer w, void* data, int strip)
+-- * w, data are created from make_setS, make_setF
+------------------------------------------------------------------------
+function luaU:dump(L, f, w, data, strip)
+  local D = {}  -- DumpState
+  D.L = L
+  D.write = w
+  D.data = data
+  D.strip = strip
+  D.status = 0
+  self:DumpHeader(D)
+  self:DumpFunction(f, nil, D)
+  -- added: for a chunk writer writing to a file, this final call with
+  -- nil data is to indicate to the writer to close the file
+  D.write(nil, D.data)
+  return D.status
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/llex.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/llex.lua
new file mode 100644
index 0000000..7949326
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/llex.lua
@@ -0,0 +1,686 @@
+--[[--------------------------------------------------------------------
+
+  llex.lua
+  Lua lexical analyzer in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * intended to 'imitate' llex.c code; performance is not a concern
+-- * tokens are strings; code structure largely retained
+-- * deleted stuff (compared to llex.c) are noted, comments retained
+-- * nextc() returns the currently read character to simplify coding
+--   here; next() in llex.c does not return anything
+-- * compatibility code is marked with "--#" comments
+--
+-- Added:
+-- * luaX:chunkid (function luaO_chunkid from lobject.c)
+-- * luaX:str2d (function luaO_str2d from lobject.c)
+-- * luaX.LUA_QS used in luaX:lexerror (from luaconf.h)
+-- * luaX.LUA_COMPAT_LSTR in luaX:read_long_string (from luaconf.h)
+-- * luaX.MAX_INT used in luaX:inclinenumber (from llimits.h)
+--
+-- To use the lexer:
+-- (1) luaX:init() to initialize the lexer
+-- (2) luaX:setinput() to set the input stream to lex
+-- (3) call luaX:next() or luaX:luaX:lookahead() to get tokens,
+--     until "TK_EOS": luaX:next()
+-- * since EOZ is returned as a string, be careful when regexp testing
+--
+-- Not implemented:
+-- * luaX_newstring: not required by this Lua implementation
+-- * buffer MAX_SIZET size limit (from llimits.h) test not implemented
+--   in the interest of performance
+-- * locale-aware number handling is largely redundant as Lua's
+--   tonumber() function is already capable of this
+--
+-- Changed in 5.1.x:
+-- * TK_NAME token order moved down
+-- * string representation for TK_NAME, TK_NUMBER, TK_STRING changed
+-- * token struct renamed to lower case (LS -> ls)
+-- * LexState struct: removed nestlevel, added decpoint
+-- * error message functions have been greatly simplified
+-- * token2string renamed to luaX_tokens, exposed in llex.h
+-- * lexer now handles all kinds of newlines, including CRLF
+-- * shbang first line handling removed from luaX:setinput;
+--   it is now done in lauxlib.c (luaL_loadfile)
+-- * next(ls) macro renamed to nextc(ls) due to new luaX_next function
+-- * EXTRABUFF and MAXNOCHECK removed due to lexer changes
+-- * checkbuffer(ls, len) macro deleted
+-- * luaX:read_numeral now has 3 support functions: luaX:trydecpoint,
+--   luaX:buffreplace and (luaO_str2d from lobject.c) luaX:str2d
+-- * luaX:read_numeral is now more promiscuous in slurping characters;
+--   hexadecimal numbers was added, locale-aware decimal points too
+-- * luaX:skip_sep is new; used by luaX:read_long_string
+-- * luaX:read_long_string handles new-style long blocks, with some
+--   optional compatibility code
+-- * luaX:llex: parts changed to support new-style long blocks
+-- * luaX:llex: readname functionality has been folded in
+-- * luaX:llex: removed test for control characters
+----------------------------------------------------------------------]]
+
+luaX = {}
+
+-- FIRST_RESERVED is not required as tokens are manipulated as strings
+-- TOKEN_LEN deleted; maximum length of a reserved word not needed
+
+------------------------------------------------------------------------
+-- "ORDER RESERVED" deleted; enumeration in one place: luaX.RESERVED
+------------------------------------------------------------------------
+
+-- terminal symbols denoted by reserved words: TK_AND to TK_WHILE
+-- other terminal symbols: TK_NAME to TK_EOS
+luaX.RESERVED = [[
+TK_AND and
+TK_BREAK break
+TK_DO do
+TK_ELSE else
+TK_ELSEIF elseif
+TK_END end
+TK_FALSE false
+TK_FOR for
+TK_FUNCTION function
+TK_IF if
+TK_IN in
+TK_LOCAL local
+TK_NIL nil
+TK_NOT not
+TK_OR or
+TK_REPEAT repeat
+TK_RETURN return
+TK_THEN then
+TK_TRUE true
+TK_UNTIL until
+TK_WHILE while
+TK_CONCAT ..
+TK_DOTS ...
+TK_EQ ==
+TK_GE >=
+TK_LE <=
+TK_NE ~=
+TK_NAME <name>
+TK_NUMBER <number>
+TK_STRING <string>
+TK_EOS <eof>]]
+
+-- NUM_RESERVED is not required; number of reserved words
+
+--[[--------------------------------------------------------------------
+-- Instead of passing seminfo, the Token struct (e.g. ls.t) is passed
+-- so that lexer functions can use its table element, ls.t.seminfo
+--
+-- SemInfo (struct no longer needed, a mixed-type value is used)
+--
+-- Token (struct of ls.t and ls.lookahead):
+--   token  -- token symbol
+--   seminfo  -- semantics information
+--
+-- LexState (struct of ls; ls is initialized by luaX:setinput):
+--   current  -- current character (charint)
+--   linenumber  -- input line counter
+--   lastline  -- line of last token 'consumed'
+--   t  -- current token (table: struct Token)
+--   lookahead  -- look ahead token (table: struct Token)
+--   fs  -- 'FuncState' is private to the parser
+--   L -- LuaState
+--   z  -- input stream
+--   buff  -- buffer for tokens
+--   source  -- current source name
+--   decpoint -- locale decimal point
+--   nestlevel  -- level of nested non-terminals
+----------------------------------------------------------------------]]
+
+-- luaX.tokens (was luaX_tokens) is now a hash; see luaX:init
+
+luaX.MAXSRC = 80
+luaX.MAX_INT = 2147483645       -- constants from elsewhere (see above)
+luaX.LUA_QS = "'%s'"
+luaX.LUA_COMPAT_LSTR = 1
+--luaX.MAX_SIZET = 4294967293
+
+------------------------------------------------------------------------
+-- initialize lexer
+-- * original luaX_init has code to create and register token strings
+-- * luaX.tokens: TK_* -> token
+-- * luaX.enums:  token -> TK_* (used in luaX:llex)
+------------------------------------------------------------------------
+function luaX:init()
+  local tokens, enums = {}, {}
+  for v in string.gmatch(self.RESERVED, "[^\n]+") do
+    local _, _, tok, str = string.find(v, "(%S+)%s+(%S+)")
+    tokens[tok] = str
+    enums[str] = tok
+  end
+  self.tokens = tokens
+  self.enums = enums
+end
+
+------------------------------------------------------------------------
+-- returns a suitably-formatted chunk name or id
+-- * from lobject.c, used in llex.c and ldebug.c
+-- * the result, out, is returned (was first argument)
+------------------------------------------------------------------------
+function luaX:chunkid(source, bufflen)
+  local out
+  local first = string.sub(source, 1, 1)
+  if first == "=" then
+    out = string.sub(source, 2, bufflen)  -- remove first char
+  else  -- out = "source", or "...source"
+    if first == "@" then
+      source = string.sub(source, 2)  -- skip the '@'
+      bufflen = bufflen - #" '...' "
+      local l = #source
+      out = ""
+      if l > bufflen then
+        source = string.sub(source, 1 + l - bufflen)  -- get last part of file name
+        out = out.."..."
+      end
+      out = out..source
+    else  -- out = [string "string"]
+      local len = string.find(source, "[\n\r]")  -- stop at first newline
+      len = len and (len - 1) or #source
+      bufflen = bufflen - #(" [string \"...\"] ")
+      if len > bufflen then len = bufflen end
+      out = "[string \""
+      if len < #source then  -- must truncate?
+        out = out..string.sub(source, 1, len).."..."
+      else
+        out = out..source
+      end
+      out = out.."\"]"
+    end
+  end
+  return out
+end
+
+--[[--------------------------------------------------------------------
+-- Support functions for lexer
+-- * all lexer errors eventually reaches lexerror:
+     syntaxerror -> lexerror
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- look up token and return keyword if found (also called by parser)
+------------------------------------------------------------------------
+function luaX:token2str(ls, token)
+  if string.sub(token, 1, 3) ~= "TK_" then
+    if string.find(token, "%c") then
+      return string.format("char(%d)", string.byte(token))
+    end
+    return token
+  else
+    return self.tokens[token]
+  end
+end
+
+------------------------------------------------------------------------
+-- throws a lexer error
+-- * txtToken has been made local to luaX:lexerror
+-- * can't communicate LUA_ERRSYNTAX, so it is unimplemented
+------------------------------------------------------------------------
+function luaX:lexerror(ls, msg, token)
+  local function txtToken(ls, token)
+    if token == "TK_NAME" or
+       token == "TK_STRING" or
+       token == "TK_NUMBER" then
+      return ls.buff
+    else
+      return self:token2str(ls, token)
+    end
+  end
+  local buff = self:chunkid(ls.source, self.MAXSRC)
+  local msg = string.format("%s:%d: %s", buff, ls.linenumber, msg)
+  if token then
+    msg = string.format("%s near "..self.LUA_QS, msg, txtToken(ls, token))
+  end
+  -- luaD_throw(ls->L, LUA_ERRSYNTAX)
+  error(msg)
+end
+
+------------------------------------------------------------------------
+-- throws a syntax error (mainly called by parser)
+-- * ls.t.token has to be set by the function calling luaX:llex
+--   (see luaX:next and luaX:lookahead elsewhere in this file)
+------------------------------------------------------------------------
+function luaX:syntaxerror(ls, msg)
+  self:lexerror(ls, msg, ls.t.token)
+end
+
+------------------------------------------------------------------------
+-- move on to next line
+------------------------------------------------------------------------
+function luaX:currIsNewline(ls)
+  return ls.current == "\n" or ls.current == "\r"
+end
+
+function luaX:inclinenumber(ls)
+  local old = ls.current
+  -- lua_assert(currIsNewline(ls))
+  self:nextc(ls)  -- skip '\n' or '\r'
+  if self:currIsNewline(ls) and ls.current ~= old then
+    self:nextc(ls)  -- skip '\n\r' or '\r\n'
+  end
+  ls.linenumber = ls.linenumber + 1
+  if ls.linenumber >= self.MAX_INT then
+    self:syntaxerror(ls, "chunk has too many lines")
+  end
+end
+
+------------------------------------------------------------------------
+-- initializes an input stream for lexing
+-- * if ls (the lexer state) is passed as a table, then it is filled in,
+--   otherwise it has to be retrieved as a return value
+-- * LUA_MINBUFFER not used; buffer handling not required any more
+------------------------------------------------------------------------
+function luaX:setinput(L, ls, z, source)
+  if not ls then ls = {} end  -- create struct
+  if not ls.lookahead then ls.lookahead = {} end
+  if not ls.t then ls.t = {} end
+  ls.decpoint = "."
+  ls.L = L
+  ls.lookahead.token = "TK_EOS"  -- no look-ahead token
+  ls.z = z
+  ls.fs = nil
+  ls.linenumber = 1
+  ls.lastline = 1
+  ls.source = source
+  self:nextc(ls)  -- read first char
+end
+
+--[[--------------------------------------------------------------------
+-- LEXICAL ANALYZER
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- checks if current character read is found in the set 'set'
+------------------------------------------------------------------------
+function luaX:check_next(ls, set)
+  if not string.find(set, ls.current, 1, 1) then
+    return false
+  end
+  self:save_and_next(ls)
+  return true
+end
+
+------------------------------------------------------------------------
+-- retrieve next token, checking the lookahead buffer if necessary
+-- * note that the macro next(ls) in llex.c is now luaX:nextc
+-- * utilized used in lparser.c (various places)
+------------------------------------------------------------------------
+function luaX:next(ls)
+  ls.lastline = ls.linenumber
+  if ls.lookahead.token ~= "TK_EOS" then  -- is there a look-ahead token?
+    -- this must be copy-by-value
+    ls.t.seminfo = ls.lookahead.seminfo  -- use this one
+    ls.t.token = ls.lookahead.token
+    ls.lookahead.token = "TK_EOS"  -- and discharge it
+  else
+    ls.t.token = self:llex(ls, ls.t)  -- read next token
+  end
+end
+
+------------------------------------------------------------------------
+-- fill in the lookahead buffer
+-- * utilized used in lparser.c:constructor
+------------------------------------------------------------------------
+function luaX:lookahead(ls)
+  -- lua_assert(ls.lookahead.token == "TK_EOS")
+  ls.lookahead.token = self:llex(ls, ls.lookahead)
+end
+
+------------------------------------------------------------------------
+-- gets the next character and returns it
+-- * this is the next() macro in llex.c; see notes at the beginning
+------------------------------------------------------------------------
+function luaX:nextc(ls)
+  local c = luaZ:zgetc(ls.z)
+  ls.current = c
+  return c
+end
+
+------------------------------------------------------------------------
+-- saves the given character into the token buffer
+-- * buffer handling code removed, not used in this implementation
+-- * test for maximum token buffer length not used, makes things faster
+------------------------------------------------------------------------
+
+function luaX:save(ls, c)
+  local buff = ls.buff
+  -- if you want to use this, please uncomment luaX.MAX_SIZET further up
+  --if #buff > self.MAX_SIZET then
+  --  self:lexerror(ls, "lexical element too long")
+  --end
+  ls.buff = buff..c
+end
+
+------------------------------------------------------------------------
+-- save current character into token buffer, grabs next character
+-- * like luaX:nextc, returns the character read for convenience
+------------------------------------------------------------------------
+function luaX:save_and_next(ls)
+  self:save(ls, ls.current)
+  return self:nextc(ls)
+end
+
+------------------------------------------------------------------------
+-- LUA_NUMBER
+-- * luaX:read_numeral is the main lexer function to read a number
+-- * luaX:str2d, luaX:buffreplace, luaX:trydecpoint are support functions
+------------------------------------------------------------------------
+
+------------------------------------------------------------------------
+-- string to number converter (was luaO_str2d from lobject.c)
+-- * returns the number, nil if fails (originally returns a boolean)
+-- * conversion function originally lua_str2number(s,p), a macro which
+--   maps to the strtod() function by default (from luaconf.h)
+------------------------------------------------------------------------
+function luaX:str2d(s)
+  local result = tonumber(s)
+  if result then return result end
+  -- conversion failed
+  if string.lower(string.sub(s, 1, 2)) == "0x" then  -- maybe an hexadecimal constant?
+    result = tonumber(s, 16)
+    if result then return result end  -- most common case
+    -- Was: invalid trailing characters?
+    -- In C, this function then skips over trailing spaces.
+    -- true is returned if nothing else is found except for spaces.
+    -- If there is still something else, then it returns a false.
+    -- All this is not necessary using Lua's tonumber.
+  end
+  return nil
+end
+
+------------------------------------------------------------------------
+-- single-character replacement, for locale-aware decimal points
+------------------------------------------------------------------------
+function luaX:buffreplace(ls, from, to)
+  local result, buff = "", ls.buff
+  for p = 1, #buff do
+    local c = string.sub(buff, p, p)
+    if c == from then c = to end
+    result = result..c
+  end
+  ls.buff = result
+end
+
+------------------------------------------------------------------------
+-- Attempt to convert a number by translating '.' decimal points to
+-- the decimal point character used by the current locale. This is not
+-- needed in Yueliang as Lua's tonumber() is already locale-aware.
+-- Instead, the code is here in case the user implements localeconv().
+------------------------------------------------------------------------
+function luaX:trydecpoint(ls, Token)
+  -- format error: try to update decimal point separator
+  local old = ls.decpoint
+  -- translate the following to Lua if you implement localeconv():
+  -- struct lconv *cv = localeconv();
+  -- ls->decpoint = (cv ? cv->decimal_point[0] : '.');
+  self:buffreplace(ls, old, ls.decpoint)  -- try updated decimal separator
+  local seminfo = self:str2d(ls.buff)
+  Token.seminfo = seminfo
+  if not seminfo then
+    -- format error with correct decimal point: no more options
+    self:buffreplace(ls, ls.decpoint, ".")  -- undo change (for error message)
+    self:lexerror(ls, "malformed number", "TK_NUMBER")
+  end
+end
+
+------------------------------------------------------------------------
+-- main number conversion function
+-- * "^%w$" needed in the scan in order to detect "EOZ"
+------------------------------------------------------------------------
+function luaX:read_numeral(ls, Token)
+  -- lua_assert(string.find(ls.current, "%d"))
+  repeat
+    self:save_and_next(ls)
+  until string.find(ls.current, "%D") and ls.current ~= "."
+  if self:check_next(ls, "Ee") then  -- 'E'?
+    self:check_next(ls, "+-")  -- optional exponent sign
+  end
+  while string.find(ls.current, "^%w$") or ls.current == "_" do
+    self:save_and_next(ls)
+  end
+  self:buffreplace(ls, ".", ls.decpoint)  -- follow locale for decimal point
+  local seminfo = self:str2d(ls.buff)
+  Token.seminfo = seminfo
+  if not seminfo then  -- format error?
+    self:trydecpoint(ls, Token) -- try to update decimal point separator
+  end
+end
+
+------------------------------------------------------------------------
+-- count separators ("=") in a long string delimiter
+-- * used by luaX:read_long_string
+------------------------------------------------------------------------
+function luaX:skip_sep(ls)
+  local count = 0
+  local s = ls.current
+  -- lua_assert(s == "[" or s == "]")
+  self:save_and_next(ls)
+  while ls.current == "=" do
+    self:save_and_next(ls)
+    count = count + 1
+  end
+  return (ls.current == s) and count or (-count) - 1
+end
+
+------------------------------------------------------------------------
+-- reads a long string or long comment
+------------------------------------------------------------------------
+function luaX:read_long_string(ls, Token, sep)
+  local cont = 0
+  self:save_and_next(ls)  -- skip 2nd '['
+  if self:currIsNewline(ls) then  -- string starts with a newline?
+    self:inclinenumber(ls)  -- skip it
+  end
+  while true do
+    local c = ls.current
+    if c == "EOZ" then
+      self:lexerror(ls, Token and "unfinished long string" or
+                    "unfinished long comment", "TK_EOS")
+    elseif c == "[" then
+      --# compatibility code start
+      if self.LUA_COMPAT_LSTR then
+        if self:skip_sep(ls) == sep then
+          self:save_and_next(ls)  -- skip 2nd '['
+          cont = cont + 1
+          --# compatibility code start
+          if self.LUA_COMPAT_LSTR == 1 then
+            if sep == 0 then
+              self:lexerror(ls, "nesting of [[...]] is deprecated", "[")
+            end
+          end
+          --# compatibility code end
+        end
+      end
+      --# compatibility code end
+    elseif c == "]" then
+      if self:skip_sep(ls) == sep then
+        self:save_and_next(ls)  -- skip 2nd ']'
+        --# compatibility code start
+        if self.LUA_COMPAT_LSTR and self.LUA_COMPAT_LSTR == 2 then
+          cont = cont - 1
+          if sep == 0 and cont >= 0 then break end
+        end
+        --# compatibility code end
+        break
+      end
+    elseif self:currIsNewline(ls) then
+      self:save(ls, "\n")
+      self:inclinenumber(ls)
+      if not Token then ls.buff = "" end -- avoid wasting space
+    else  -- default
+      if Token then
+        self:save_and_next(ls)
+      else
+        self:nextc(ls)
+      end
+    end--if c
+  end--while
+  if Token then
+    local p = 3 + sep
+    Token.seminfo = string.sub(ls.buff, p, -p)
+  end
+end
+
+------------------------------------------------------------------------
+-- reads a string
+-- * has been restructured significantly compared to the original C code
+------------------------------------------------------------------------
+
+function luaX:read_string(ls, del, Token)
+  self:save_and_next(ls)
+  while ls.current ~= del do
+    local c = ls.current
+    if c == "EOZ" then
+      self:lexerror(ls, "unfinished string", "TK_EOS")
+    elseif self:currIsNewline(ls) then
+      self:lexerror(ls, "unfinished string", "TK_STRING")
+    elseif c == "\\" then
+      c = self:nextc(ls)  -- do not save the '\'
+      if self:currIsNewline(ls) then  -- go through
+        self:save(ls, "\n")
+        self:inclinenumber(ls)
+      elseif c ~= "EOZ" then -- will raise an error next loop
+        -- escapes handling greatly simplified here:
+        local i = string.find("abfnrtv", c, 1, 1)
+        if i then
+          self:save(ls, string.sub("\a\b\f\n\r\t\v", i, i))
+          self:nextc(ls)
+        elseif not string.find(c, "%d") then
+          self:save_and_next(ls)  -- handles \\, \", \', and \?
+        else  -- \xxx
+          c, i = 0, 0
+          repeat
+            c = 10 * c + ls.current
+            self:nextc(ls)
+            i = i + 1
+          until i >= 3 or not string.find(ls.current, "%d")
+          if c > 255 then  -- UCHAR_MAX
+            self:lexerror(ls, "escape sequence too large", "TK_STRING")
+          end
+          self:save(ls, string.char(c))
+        end
+      end
+    else
+      self:save_and_next(ls)
+    end--if c
+  end--while
+  self:save_and_next(ls)  -- skip delimiter
+  Token.seminfo = string.sub(ls.buff, 2, -2)
+end
+
+------------------------------------------------------------------------
+-- main lexer function
+------------------------------------------------------------------------
+function luaX:llex(ls, Token)
+  ls.buff = ""
+  while true do
+    local c = ls.current
+    ----------------------------------------------------------------
+    if self:currIsNewline(ls) then
+      self:inclinenumber(ls)
+    ----------------------------------------------------------------
+    elseif c == "-" then
+      c = self:nextc(ls)
+      if c ~= "-" then return "-" end
+      -- else is a comment
+      local sep = -1
+      if self:nextc(ls) == '[' then
+        sep = self:skip_sep(ls)
+        ls.buff = ""  -- 'skip_sep' may dirty the buffer
+      end
+      if sep >= 0 then
+        self:read_long_string(ls, nil, sep)  -- long comment
+        ls.buff = ""
+      else  -- else short comment
+        while not self:currIsNewline(ls) and ls.current ~= "EOZ" do
+          self:nextc(ls)
+        end
+      end
+    ----------------------------------------------------------------
+    elseif c == "[" then
+      local sep = self:skip_sep(ls)
+      if sep >= 0 then
+        self:read_long_string(ls, Token, sep)
+        return "TK_STRING"
+      elseif sep == -1 then
+        return "["
+      else
+        self:lexerror(ls, "invalid long string delimiter", "TK_STRING")
+      end
+    ----------------------------------------------------------------
+    elseif c == "=" then
+      c = self:nextc(ls)
+      if c ~= "=" then return "="
+      else self:nextc(ls); return "TK_EQ" end
+    ----------------------------------------------------------------
+    elseif c == "<" then
+      c = self:nextc(ls)
+      if c ~= "=" then return "<"
+      else self:nextc(ls); return "TK_LE" end
+    ----------------------------------------------------------------
+    elseif c == ">" then
+      c = self:nextc(ls)
+      if c ~= "=" then return ">"
+      else self:nextc(ls); return "TK_GE" end
+    ----------------------------------------------------------------
+    elseif c == "~" then
+      c = self:nextc(ls)
+      if c ~= "=" then return "~"
+      else self:nextc(ls); return "TK_NE" end
+    ----------------------------------------------------------------
+    elseif c == "\"" or c == "'" then
+      self:read_string(ls, c, Token)
+      return "TK_STRING"
+    ----------------------------------------------------------------
+    elseif c == "." then
+      c = self:save_and_next(ls)
+      if self:check_next(ls, ".") then
+        if self:check_next(ls, ".") then
+          return "TK_DOTS"   -- ...
+        else return "TK_CONCAT"   -- ..
+        end
+      elseif not string.find(c, "%d") then
+        return "."
+      else
+        self:read_numeral(ls, Token)
+        return "TK_NUMBER"
+      end
+    ----------------------------------------------------------------
+    elseif c == "EOZ" then
+      return "TK_EOS"
+    ----------------------------------------------------------------
+    else  -- default
+      if string.find(c, "%s") then
+        -- lua_assert(self:currIsNewline(ls))
+        self:nextc(ls)
+      elseif string.find(c, "%d") then
+        self:read_numeral(ls, Token)
+        return "TK_NUMBER"
+      elseif string.find(c, "[_%a]") then
+        -- identifier or reserved word
+        repeat
+          c = self:save_and_next(ls)
+        until c == "EOZ" or not string.find(c, "[_%w]")
+        local ts = ls.buff
+        local tok = self.enums[ts]
+        if tok then return tok end  -- reserved word?
+        Token.seminfo = ts
+        return "TK_NAME"
+      else
+        self:nextc(ls)
+        return c  -- single-char tokens (+ - / ...)
+      end
+    ----------------------------------------------------------------
+    end--if c
+  end--while
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/lopcodes.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/lopcodes.lua
new file mode 100644
index 0000000..e7dbbe8
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/lopcodes.lua
@@ -0,0 +1,432 @@
+--[[--------------------------------------------------------------------
+
+  lopcodes.lua
+  Lua 5 virtual machine opcodes in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * an Instruction is a table with OP, A, B, C, Bx elements; this
+--   makes the code easy to follow and should allow instruction handling
+--   to work with doubles and ints
+-- * WARNING luaP:Instruction outputs instructions encoded in little-
+--   endian form and field size and positions are hard-coded
+--
+-- Not implemented:
+-- *
+--
+-- Added:
+-- * luaP:CREATE_Inst(c): create an inst from a number (for OP_SETLIST)
+-- * luaP:Instruction(i): convert field elements to a 4-char string
+-- * luaP:DecodeInst(x): convert 4-char string into field elements
+--
+-- Changed in 5.1.x:
+-- * POS_OP added, instruction field positions changed
+-- * some symbol names may have changed, e.g. LUAI_BITSINT
+-- * new operators for RK indices: BITRK, ISK(x), INDEXK(r), RKASK(x)
+-- * OP_MOD, OP_LEN is new
+-- * OP_TEST is now OP_TESTSET, OP_TEST is new
+-- * OP_FORLOOP, OP_TFORLOOP adjusted, OP_FORPREP is new
+-- * OP_TFORPREP deleted
+-- * OP_SETLIST and OP_SETLISTO merged and extended
+-- * OP_VARARG is new
+-- * many changes to implementation of OpMode data
+----------------------------------------------------------------------]]
+
+luaP = {}
+
+--[[
+===========================================================================
+  We assume that instructions are unsigned numbers.
+  All instructions have an opcode in the first 6 bits.
+  Instructions can have the following fields:
+        'A' : 8 bits
+        'B' : 9 bits
+        'C' : 9 bits
+        'Bx' : 18 bits ('B' and 'C' together)
+        'sBx' : signed Bx
+
+  A signed argument is represented in excess K; that is, the number
+  value is the unsigned value minus K. K is exactly the maximum value
+  for that argument (so that -max is represented by 0, and +max is
+  represented by 2*max), which is half the maximum for the corresponding
+  unsigned argument.
+===========================================================================
+--]]
+
+luaP.OpMode = { iABC = 0, iABx = 1, iAsBx = 2 }  -- basic instruction format
+
+------------------------------------------------------------------------
+-- size and position of opcode arguments.
+-- * WARNING size and position is hard-coded elsewhere in this script
+------------------------------------------------------------------------
+luaP.SIZE_C  = 9
+luaP.SIZE_B  = 9
+luaP.SIZE_Bx = luaP.SIZE_C + luaP.SIZE_B
+luaP.SIZE_A  = 8
+
+luaP.SIZE_OP = 6
+
+luaP.POS_OP = 0
+luaP.POS_A  = luaP.POS_OP + luaP.SIZE_OP
+luaP.POS_C  = luaP.POS_A + luaP.SIZE_A
+luaP.POS_B  = luaP.POS_C + luaP.SIZE_C
+luaP.POS_Bx = luaP.POS_C
+
+------------------------------------------------------------------------
+-- limits for opcode arguments.
+-- we use (signed) int to manipulate most arguments,
+-- so they must fit in LUAI_BITSINT-1 bits (-1 for sign)
+------------------------------------------------------------------------
+-- removed "#if SIZE_Bx < BITS_INT-1" test, assume this script is
+-- running on a Lua VM with double or int as LUA_NUMBER
+
+luaP.MAXARG_Bx  = math.ldexp(1, luaP.SIZE_Bx) - 1
+luaP.MAXARG_sBx = math.floor(luaP.MAXARG_Bx / 2)  -- 'sBx' is signed
+
+luaP.MAXARG_A = math.ldexp(1, luaP.SIZE_A) - 1
+luaP.MAXARG_B = math.ldexp(1, luaP.SIZE_B) - 1
+luaP.MAXARG_C = math.ldexp(1, luaP.SIZE_C) - 1
+
+-- creates a mask with 'n' 1 bits at position 'p'
+-- MASK1(n,p) deleted, not required
+-- creates a mask with 'n' 0 bits at position 'p'
+-- MASK0(n,p) deleted, not required
+
+--[[--------------------------------------------------------------------
+  Visual representation for reference:
+
+   31    |    |     |            0      bit position
+    +-----+-----+-----+----------+
+    |  B  |  C  |  A  |  Opcode  |      iABC format
+    +-----+-----+-----+----------+
+    -  9  -  9  -  8  -    6     -      field sizes
+    +-----+-----+-----+----------+
+    |   [s]Bx   |  A  |  Opcode  |      iABx | iAsBx format
+    +-----+-----+-----+----------+
+
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- the following macros help to manipulate instructions
+-- * changed to a table object representation, very clean compared to
+--   the [nightmare] alternatives of using a number or a string
+-- * Bx is a separate element from B and C, since there is never a need
+--   to split Bx in the parser or code generator
+------------------------------------------------------------------------
+
+-- these accept or return opcodes in the form of string names
+function luaP:GET_OPCODE(i) return self.ROpCode[i.OP] end
+function luaP:SET_OPCODE(i, o) i.OP = self.OpCode[o] end
+
+function luaP:GETARG_A(i) return i.A end
+function luaP:SETARG_A(i, u) i.A = u end
+
+function luaP:GETARG_B(i) return i.B end
+function luaP:SETARG_B(i, b) i.B = b end
+
+function luaP:GETARG_C(i) return i.C end
+function luaP:SETARG_C(i, b) i.C = b end
+
+function luaP:GETARG_Bx(i) return i.Bx end
+function luaP:SETARG_Bx(i, b) i.Bx = b end
+
+function luaP:GETARG_sBx(i) return i.Bx - self.MAXARG_sBx end
+function luaP:SETARG_sBx(i, b) i.Bx = b + self.MAXARG_sBx end
+
+function luaP:CREATE_ABC(o,a,b,c)
+  return {OP = self.OpCode[o], A = a, B = b, C = c}
+end
+
+function luaP:CREATE_ABx(o,a,bc)
+  return {OP = self.OpCode[o], A = a, Bx = bc}
+end
+
+------------------------------------------------------------------------
+-- create an instruction from a number (for OP_SETLIST)
+------------------------------------------------------------------------
+function luaP:CREATE_Inst(c)
+  local o = c % 64
+  c = (c - o) / 64
+  local a = c % 256
+  c = (c - a) / 256
+  return self:CREATE_ABx(o, a, c)
+end
+
+------------------------------------------------------------------------
+-- returns a 4-char string little-endian encoded form of an instruction
+------------------------------------------------------------------------
+function luaP:Instruction(i)
+  if i.Bx then
+    -- change to OP/A/B/C format
+    i.C = i.Bx % 512
+    i.B = (i.Bx - i.C) / 512
+  end
+  local I = i.A * 64 + i.OP
+  local c0 = I % 256
+  I = i.C * 64 + (I - c0) / 256  -- 6 bits of A left
+  local c1 = I % 256
+  I = i.B * 128 + (I - c1) / 256  -- 7 bits of C left
+  local c2 = I % 256
+  local c3 = (I - c2) / 256
+  return string.char(c0, c1, c2, c3)
+end
+
+------------------------------------------------------------------------
+-- decodes a 4-char little-endian string into an instruction struct
+------------------------------------------------------------------------
+function luaP:DecodeInst(x)
+  local byte = string.byte
+  local i = {}
+  local I = byte(x, 1)
+  local op = I % 64
+  i.OP = op
+  I = byte(x, 2) * 4 + (I - op) / 64  -- 2 bits of c0 left
+  local a = I % 256
+  i.A = a
+  I = byte(x, 3) * 4 + (I - a) / 256  -- 2 bits of c1 left
+  local c = I % 512
+  i.C = c
+  i.B = byte(x, 4) * 2 + (I - c) / 512 -- 1 bits of c2 left
+  local opmode = self.OpMode[tonumber(string.sub(self.opmodes[op + 1], 7, 7))]
+  if opmode ~= "iABC" then
+    i.Bx = i.B * 512 + i.C
+  end
+  return i
+end
+
+------------------------------------------------------------------------
+-- Macros to operate RK indices
+-- * these use arithmetic instead of bit ops
+------------------------------------------------------------------------
+
+-- this bit 1 means constant (0 means register)
+luaP.BITRK = math.ldexp(1, luaP.SIZE_B - 1)
+
+-- test whether value is a constant
+function luaP:ISK(x) return x >= self.BITRK end
+
+-- gets the index of the constant
+function luaP:INDEXK(r) return x - self.BITRK end
+
+luaP.MAXINDEXRK = luaP.BITRK - 1
+
+-- code a constant index as a RK value
+function luaP:RKASK(x) return x + self.BITRK end
+
+------------------------------------------------------------------------
+-- invalid register that fits in 8 bits
+------------------------------------------------------------------------
+luaP.NO_REG = luaP.MAXARG_A
+
+------------------------------------------------------------------------
+-- R(x) - register
+-- Kst(x) - constant (in constant table)
+-- RK(x) == if ISK(x) then Kst(INDEXK(x)) else R(x)
+------------------------------------------------------------------------
+
+------------------------------------------------------------------------
+-- grep "ORDER OP" if you change these enums
+------------------------------------------------------------------------
+
+--[[--------------------------------------------------------------------
+Lua virtual machine opcodes (enum OpCode):
+------------------------------------------------------------------------
+name          args    description
+------------------------------------------------------------------------
+OP_MOVE       A B     R(A) := R(B)
+OP_LOADK      A Bx    R(A) := Kst(Bx)
+OP_LOADBOOL   A B C   R(A) := (Bool)B; if (C) pc++
+OP_LOADNIL    A B     R(A) := ... := R(B) := nil
+OP_GETUPVAL   A B     R(A) := UpValue[B]
+OP_GETGLOBAL  A Bx    R(A) := Gbl[Kst(Bx)]
+OP_GETTABLE   A B C   R(A) := R(B)[RK(C)]
+OP_SETGLOBAL  A Bx    Gbl[Kst(Bx)] := R(A)
+OP_SETUPVAL   A B     UpValue[B] := R(A)
+OP_SETTABLE   A B C   R(A)[RK(B)] := RK(C)
+OP_NEWTABLE   A B C   R(A) := {} (size = B,C)
+OP_SELF       A B C   R(A+1) := R(B); R(A) := R(B)[RK(C)]
+OP_ADD        A B C   R(A) := RK(B) + RK(C)
+OP_SUB        A B C   R(A) := RK(B) - RK(C)
+OP_MUL        A B C   R(A) := RK(B) * RK(C)
+OP_DIV        A B C   R(A) := RK(B) / RK(C)
+OP_MOD        A B C   R(A) := RK(B) % RK(C)
+OP_POW        A B C   R(A) := RK(B) ^ RK(C)
+OP_UNM        A B     R(A) := -R(B)
+OP_NOT        A B     R(A) := not R(B)
+OP_LEN        A B     R(A) := length of R(B)
+OP_CONCAT     A B C   R(A) := R(B).. ... ..R(C)
+OP_JMP        sBx     pc+=sBx
+OP_EQ         A B C   if ((RK(B) == RK(C)) ~= A) then pc++
+OP_LT         A B C   if ((RK(B) <  RK(C)) ~= A) then pc++
+OP_LE         A B C   if ((RK(B) <= RK(C)) ~= A) then pc++
+OP_TEST       A C     if not (R(A) <=> C) then pc++
+OP_TESTSET    A B C   if (R(B) <=> C) then R(A) := R(B) else pc++
+OP_CALL       A B C   R(A), ... ,R(A+C-2) := R(A)(R(A+1), ... ,R(A+B-1))
+OP_TAILCALL   A B C   return R(A)(R(A+1), ... ,R(A+B-1))
+OP_RETURN     A B     return R(A), ... ,R(A+B-2)  (see note)
+OP_FORLOOP    A sBx   R(A)+=R(A+2);
+                      if R(A) <?= R(A+1) then { pc+=sBx; R(A+3)=R(A) }
+OP_FORPREP    A sBx   R(A)-=R(A+2); pc+=sBx
+OP_TFORLOOP   A C     R(A+3), ... ,R(A+2+C) := R(A)(R(A+1), R(A+2));
+                      if R(A+3) ~= nil then R(A+2)=R(A+3) else pc++
+OP_SETLIST    A B C   R(A)[(C-1)*FPF+i] := R(A+i), 1 <= i <= B
+OP_CLOSE      A       close all variables in the stack up to (>=) R(A)
+OP_CLOSURE    A Bx    R(A) := closure(KPROTO[Bx], R(A), ... ,R(A+n))
+OP_VARARG     A B     R(A), R(A+1), ..., R(A+B-1) = vararg
+----------------------------------------------------------------------]]
+
+luaP.opnames = {}  -- opcode names
+luaP.OpCode = {}   -- lookup name -> number
+luaP.ROpCode = {}  -- lookup number -> name
+
+------------------------------------------------------------------------
+-- ORDER OP
+------------------------------------------------------------------------
+local i = 0
+for v in string.gmatch([[
+MOVE LOADK LOADBOOL LOADNIL GETUPVAL
+GETGLOBAL GETTABLE SETGLOBAL SETUPVAL SETTABLE
+NEWTABLE SELF ADD SUB MUL
+DIV MOD POW UNM NOT
+LEN CONCAT JMP EQ LT
+LE TEST TESTSET CALL TAILCALL
+RETURN FORLOOP FORPREP TFORLOOP SETLIST
+CLOSE CLOSURE VARARG
+]], "%S+") do
+  local n = "OP_"..v
+  luaP.opnames[i] = v
+  luaP.OpCode[n] = i
+  luaP.ROpCode[i] = n
+  i = i + 1
+end
+luaP.NUM_OPCODES = i
+
+--[[
+===========================================================================
+  Notes:
+  (*) In OP_CALL, if (B == 0) then B = top. C is the number of returns - 1,
+      and can be 0: OP_CALL then sets 'top' to last_result+1, so
+      next open instruction (OP_CALL, OP_RETURN, OP_SETLIST) may use 'top'.
+  (*) In OP_VARARG, if (B == 0) then use actual number of varargs and
+      set top (like in OP_CALL with C == 0).
+  (*) In OP_RETURN, if (B == 0) then return up to 'top'
+  (*) In OP_SETLIST, if (B == 0) then B = 'top';
+      if (C == 0) then next 'instruction' is real C
+  (*) For comparisons, A specifies what condition the test should accept
+      (true or false).
+  (*) All 'skips' (pc++) assume that next instruction is a jump
+===========================================================================
+--]]
+
+--[[--------------------------------------------------------------------
+  masks for instruction properties. The format is:
+  bits 0-1: op mode
+  bits 2-3: C arg mode
+  bits 4-5: B arg mode
+  bit 6: instruction set register A
+  bit 7: operator is a test
+
+  for OpArgMask:
+  OpArgN - argument is not used
+  OpArgU - argument is used
+  OpArgR - argument is a register or a jump offset
+  OpArgK - argument is a constant or register/constant
+----------------------------------------------------------------------]]
+
+-- was enum OpArgMask
+luaP.OpArgMask = { OpArgN = 0, OpArgU = 1, OpArgR = 2, OpArgK = 3 }
+
+------------------------------------------------------------------------
+-- e.g. to compare with symbols, luaP:getOpMode(...) == luaP.OpCode.iABC
+-- * accepts opcode parameter as strings, e.g. "OP_MOVE"
+------------------------------------------------------------------------
+
+function luaP:getOpMode(m)
+  return self.opmodes[self.OpCode[m]] % 4
+end
+
+function luaP:getBMode(m)
+  return math.floor(self.opmodes[self.OpCode[m]] / 16) % 4
+end
+
+function luaP:getCMode(m)
+  return math.floor(self.opmodes[self.OpCode[m]] / 4) % 4
+end
+
+function luaP:testAMode(m)
+  return math.floor(self.opmodes[self.OpCode[m]] / 64) % 2
+end
+
+function luaP:testTMode(m)
+  return math.floor(self.opmodes[self.OpCode[m]] / 128)
+end
+
+-- luaP_opnames[] is set above, as the luaP.opnames table
+
+-- number of list items to accumulate before a SETLIST instruction
+luaP.LFIELDS_PER_FLUSH = 50
+
+------------------------------------------------------------------------
+-- build instruction properties array
+-- * deliberately coded to look like the C equivalent
+------------------------------------------------------------------------
+local function opmode(t, a, b, c, m)
+  local luaP = luaP
+  return t * 128 + a * 64 +
+         luaP.OpArgMask[b] * 16 + luaP.OpArgMask[c] * 4 + luaP.OpMode[m]
+end
+
+-- ORDER OP
+luaP.opmodes = {
+-- T A B C mode opcode
+  opmode(0, 1, "OpArgK", "OpArgN", "iABx"),     -- OP_LOADK
+  opmode(0, 1, "OpArgU", "OpArgU", "iABC"),     -- OP_LOADBOOL
+  opmode(0, 1, "OpArgR", "OpArgN", "iABC"),     -- OP_LOADNIL
+  opmode(0, 1, "OpArgU", "OpArgN", "iABC"),     -- OP_GETUPVAL
+  opmode(0, 1, "OpArgK", "OpArgN", "iABx"),     -- OP_GETGLOBAL
+  opmode(0, 1, "OpArgR", "OpArgK", "iABC"),     -- OP_GETTABLE
+  opmode(0, 0, "OpArgK", "OpArgN", "iABx"),     -- OP_SETGLOBAL
+  opmode(0, 0, "OpArgU", "OpArgN", "iABC"),     -- OP_SETUPVAL
+  opmode(0, 0, "OpArgK", "OpArgK", "iABC"),     -- OP_SETTABLE
+  opmode(0, 1, "OpArgU", "OpArgU", "iABC"),     -- OP_NEWTABLE
+  opmode(0, 1, "OpArgR", "OpArgK", "iABC"),     -- OP_SELF
+  opmode(0, 1, "OpArgK", "OpArgK", "iABC"),     -- OP_ADD
+  opmode(0, 1, "OpArgK", "OpArgK", "iABC"),     -- OP_SUB
+  opmode(0, 1, "OpArgK", "OpArgK", "iABC"),     -- OP_MUL
+  opmode(0, 1, "OpArgK", "OpArgK", "iABC"),     -- OP_DIV
+  opmode(0, 1, "OpArgK", "OpArgK", "iABC"),     -- OP_MOD
+  opmode(0, 1, "OpArgK", "OpArgK", "iABC"),     -- OP_POW
+  opmode(0, 1, "OpArgR", "OpArgN", "iABC"),     -- OP_UNM
+  opmode(0, 1, "OpArgR", "OpArgN", "iABC"),     -- OP_NOT
+  opmode(0, 1, "OpArgR", "OpArgN", "iABC"),     -- OP_LEN
+  opmode(0, 1, "OpArgR", "OpArgR", "iABC"),     -- OP_CONCAT
+  opmode(0, 0, "OpArgR", "OpArgN", "iAsBx"),    -- OP_JMP
+  opmode(1, 0, "OpArgK", "OpArgK", "iABC"),     -- OP_EQ
+  opmode(1, 0, "OpArgK", "OpArgK", "iABC"),     -- OP_LT
+  opmode(1, 0, "OpArgK", "OpArgK", "iABC"),     -- OP_LE
+  opmode(1, 1, "OpArgR", "OpArgU", "iABC"),     -- OP_TEST
+  opmode(1, 1, "OpArgR", "OpArgU", "iABC"),     -- OP_TESTSET
+  opmode(0, 1, "OpArgU", "OpArgU", "iABC"),     -- OP_CALL
+  opmode(0, 1, "OpArgU", "OpArgU", "iABC"),     -- OP_TAILCALL
+  opmode(0, 0, "OpArgU", "OpArgN", "iABC"),     -- OP_RETURN
+  opmode(0, 1, "OpArgR", "OpArgN", "iAsBx"),    -- OP_FORLOOP
+  opmode(0, 1, "OpArgR", "OpArgN", "iAsBx"),    -- OP_FORPREP
+  opmode(1, 0, "OpArgN", "OpArgU", "iABC"),     -- OP_TFORLOOP
+  opmode(0, 0, "OpArgU", "OpArgU", "iABC"),     -- OP_SETLIST
+  opmode(0, 0, "OpArgN", "OpArgN", "iABC"),     -- OP_CLOSE
+  opmode(0, 1, "OpArgU", "OpArgN", "iABx"),     -- OP_CLOSURE
+  opmode(0, 1, "OpArgU", "OpArgN", "iABC"),     -- OP_VARARG
+}
+-- an awkward way to set a zero-indexed table...
+luaP.opmodes[0] =
+  opmode(0, 1, "OpArgR", "OpArgN", "iABC")      -- OP_MOVE
+
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/lparser.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/lparser.lua
new file mode 100644
index 0000000..2535056
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/lparser.lua
@@ -0,0 +1,1747 @@
+--[[--------------------------------------------------------------------
+
+  lparser.lua
+  Lua 5 parser in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2007 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * some unused C code that were not converted are kept as comments
+-- * LUA_COMPAT_VARARG option changed into a comment block
+-- * for value/size specific code added, look for 'NOTE: '
+--
+-- Not implemented:
+-- * luaX_newstring not needed by this Lua implementation
+-- * luaG_checkcode() in lua_assert is not currently implemented
+--
+-- Added:
+-- * some constants added from various header files
+-- * luaY.LUA_QS used in error_expected, check_match (from luaconf.h)
+-- * luaY:LUA_QL needed for error messages (from luaconf.h)
+-- * luaY:growvector (from lmem.h) -- skeleton only, limit checking
+-- * luaY.SHRT_MAX (from <limits.h>) for registerlocalvar
+-- * luaY:newproto (from lfunc.c)
+-- * luaY:int2fb (from lobject.c)
+-- * NOTE: HASARG_MASK, for implementing a VARARG_HASARG bit operation
+-- * NOTE: value-specific code for VARARG_NEEDSARG to replace a bitop
+--
+-- Changed in 5.1.x:
+-- * various code changes are not detailed...
+-- * names of constants may have changed, e.g. added a LUAI_ prefix
+-- * struct expkind: added VKNUM, VVARARG; VCALL's info changed?
+-- * struct expdesc: added nval
+-- * struct FuncState: upvalues data type changed to upvaldesc
+-- * macro hasmultret is new
+-- * function checklimit moved to parser from lexer
+-- * functions anchor_token, errorlimit, checknext are new
+-- * checknext is new, equivalent to 5.0.x's check, see check too
+-- * luaY:next and luaY:lookahead moved to lexer
+-- * break keyword no longer skipped in luaY:breakstat
+-- * function new_localvarstr replaced by new_localvarliteral
+-- * registerlocalvar limits local variables to SHRT_MAX
+-- * create_local deleted, new_localvarliteral used instead
+-- * constant LUAI_MAXUPVALUES increased to 60
+-- * constants MAXPARAMS, LUA_MAXPARSERLEVEL, MAXSTACK removed
+-- * function interface changed: singlevaraux, singlevar
+-- * enterlevel and leavelevel uses nCcalls to track call depth
+-- * added a name argument to main entry function, luaY:parser
+-- * function luaY_index changed to yindex
+-- * luaY:int2fb()'s table size encoding format has been changed
+-- * luaY:log2() no longer needed for table constructors
+-- * function code_params deleted, functionality folded in parlist
+-- * vararg flags handling (is_vararg) changes; also see VARARG_*
+-- * LUA_COMPATUPSYNTAX section for old-style upvalues removed
+-- * repeatstat() calls chunk() instead of block()
+-- * function interface changed: cond, test_then_block
+-- * while statement implementation considerably simplified; MAXEXPWHILE
+--   and EXTRAEXP no longer required, no limits to the complexity of a
+--   while condition
+-- * repeat, forbody statement implementation has major changes,
+--   mostly due to new scoping behaviour of local variables
+-- * OPR_MULT renamed to OPR_MUL
+----------------------------------------------------------------------]]
+
+--requires luaP, luaX, luaK
+luaY = {}
+
+--[[--------------------------------------------------------------------
+-- Expression descriptor
+-- * expkind changed to string constants; luaY:assignment was the only
+--   function to use a relational operator with this enumeration
+-- VVOID       -- no value
+-- VNIL        -- no value
+-- VTRUE       -- no value
+-- VFALSE      -- no value
+-- VK          -- info = index of constant in 'k'
+-- VKNUM       -- nval = numerical value
+-- VLOCAL      -- info = local register
+-- VUPVAL,     -- info = index of upvalue in 'upvalues'
+-- VGLOBAL     -- info = index of table; aux = index of global name in 'k'
+-- VINDEXED    -- info = table register; aux = index register (or 'k')
+-- VJMP        -- info = instruction pc
+-- VRELOCABLE  -- info = instruction pc
+-- VNONRELOC   -- info = result register
+-- VCALL       -- info = instruction pc
+-- VVARARG     -- info = instruction pc
+} ----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- * expdesc in Lua 5.1.x has a union u and another struct s; this Lua
+--   implementation ignores all instances of u and s usage
+-- struct expdesc:
+--   k  -- (enum: expkind)
+--   info, aux -- (int, int)
+--   nval -- (lua_Number)
+--   t  -- patch list of 'exit when true'
+--   f  -- patch list of 'exit when false'
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- struct upvaldesc:
+--   k  -- (lu_byte)
+--   info -- (lu_byte)
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- state needed to generate code for a given function
+-- struct FuncState:
+--   f  -- current function header (table: Proto)
+--   h  -- table to find (and reuse) elements in 'k' (table: Table)
+--   prev  -- enclosing function (table: FuncState)
+--   ls  -- lexical state (table: LexState)
+--   L  -- copy of the Lua state (table: lua_State)
+--   bl  -- chain of current blocks (table: BlockCnt)
+--   pc  -- next position to code (equivalent to 'ncode')
+--   lasttarget   -- 'pc' of last 'jump target'
+--   jpc  -- list of pending jumps to 'pc'
+--   freereg  -- first free register
+--   nk  -- number of elements in 'k'
+--   np  -- number of elements in 'p'
+--   nlocvars  -- number of elements in 'locvars'
+--   nactvar  -- number of active local variables
+--   upvalues[LUAI_MAXUPVALUES]  -- upvalues (table: upvaldesc)
+--   actvar[LUAI_MAXVARS]  -- declared-variable stack
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- constants used by parser
+-- * picks up duplicate values from luaX if required
+------------------------------------------------------------------------
+luaY.LUA_QS = luaX.LUA_QS or "'%s'"  -- (from luaconf.h)
+
+luaY.SHRT_MAX = 32767 -- (from <limits.h>)
+luaY.LUAI_MAXVARS = 200  -- (luaconf.h)
+luaY.LUAI_MAXUPVALUES = 60  -- (luaconf.h)
+luaY.MAX_INT = luaX.MAX_INT or 2147483645  -- (from llimits.h)
+  -- * INT_MAX-2 for 32-bit systems
+luaY.LUAI_MAXCCALLS = 200  -- (from luaconf.h)
+
+luaY.VARARG_HASARG = 1  -- (from lobject.h)
+-- NOTE: HASARG_MASK is value-specific
+luaY.HASARG_MASK = 2 -- this was added for a bitop in parlist()
+luaY.VARARG_ISVARARG = 2
+-- NOTE: there is some value-specific code that involves VARARG_NEEDSARG
+luaY.VARARG_NEEDSARG = 4
+
+luaY.LUA_MULTRET = -1  -- (lua.h)
+
+--[[--------------------------------------------------------------------
+-- other functions
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- LUA_QL describes how error messages quote program elements.
+-- CHANGE it if you want a different appearance. (from luaconf.h)
+------------------------------------------------------------------------
+function luaY:LUA_QL(x)
+  return "'"..x.."'"
+end
+
+------------------------------------------------------------------------
+-- this is a stripped-down luaM_growvector (from lmem.h) which is a
+-- macro based on luaM_growaux (in lmem.c); all the following does is
+-- reproduce the size limit checking logic of the original function
+-- so that error behaviour is identical; all arguments preserved for
+-- convenience, even those which are unused
+-- * set the t field to nil, since this originally does a sizeof(t)
+-- * size (originally a pointer) is never updated, their final values
+--   are set by luaY:close_func(), so overall things should still work
+------------------------------------------------------------------------
+function luaY:growvector(L, v, nelems, size, t, limit, e)
+  if nelems >= limit then
+    error(e)  -- was luaG_runerror
+  end
+end
+
+------------------------------------------------------------------------
+-- initialize a new function prototype structure (from lfunc.c)
+-- * used only in open_func()
+------------------------------------------------------------------------
+function luaY:newproto(L)
+  local f = {} -- Proto
+  -- luaC_link(L, obj2gco(f), LUA_TPROTO); /* GC */
+  f.k = {}
+  f.sizek = 0
+  f.p = {}
+  f.sizep = 0
+  f.code = {}
+  f.sizecode = 0
+  f.sizelineinfo = 0
+  f.sizeupvalues = 0
+  f.nups = 0
+  f.upvalues = {}
+  f.numparams = 0
+  f.is_vararg = 0
+  f.maxstacksize = 0
+  f.lineinfo = {}
+  f.sizelocvars = 0
+  f.locvars = {}
+  f.lineDefined = 0
+  f.lastlinedefined = 0
+  f.source = nil
+  return f
+end
+
+------------------------------------------------------------------------
+-- converts an integer to a "floating point byte", represented as
+-- (eeeeexxx), where the real value is (1xxx) * 2^(eeeee - 1) if
+-- eeeee != 0 and (xxx) otherwise.
+------------------------------------------------------------------------
+function luaY:int2fb(x)
+  local e = 0  -- exponent
+  while x >= 16 do
+    x = math.floor((x + 1) / 2)
+    e = e + 1
+  end
+  if x < 8 then
+    return x
+  else
+    return ((e + 1) * 8) + (x - 8)
+  end
+end
+
+--[[--------------------------------------------------------------------
+-- parser functions
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- true of the kind of expression produces multiple return values
+------------------------------------------------------------------------
+function luaY:hasmultret(k)
+  return k == "VCALL" or k == "VVARARG"
+end
+
+------------------------------------------------------------------------
+-- convenience function to access active local i, returns entry
+------------------------------------------------------------------------
+function luaY:getlocvar(fs, i)
+  return fs.f.locvars[ fs.actvar[i] ]
+end
+
+------------------------------------------------------------------------
+-- check a limit, string m provided as an error message
+------------------------------------------------------------------------
+function luaY:checklimit(fs, v, l, m)
+  if v > l then self:errorlimit(fs, l, m) end
+end
+
+--[[--------------------------------------------------------------------
+-- nodes for block list (list of active blocks)
+-- struct BlockCnt:
+--   previous  -- chain (table: BlockCnt)
+--   breaklist  -- list of jumps out of this loop
+--   nactvar  -- # active local variables outside the breakable structure
+--   upval  -- true if some variable in the block is an upvalue (boolean)
+--   isbreakable  -- true if 'block' is a loop (boolean)
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- prototypes for recursive non-terminal functions
+------------------------------------------------------------------------
+-- prototypes deleted; not required in Lua
+
+------------------------------------------------------------------------
+-- reanchor if last token is has a constant string, see close_func()
+-- * used only in close_func()
+------------------------------------------------------------------------
+function luaY:anchor_token(ls)
+  if ls.t.token == "TK_NAME" or ls.t.token == "TK_STRING" then
+    -- not relevant to Lua implementation of parser
+    -- local ts = ls.t.seminfo
+    -- luaX_newstring(ls, getstr(ts), ts->tsv.len); /* C */
+  end
+end
+
+------------------------------------------------------------------------
+-- throws a syntax error if token expected is not there
+------------------------------------------------------------------------
+function luaY:error_expected(ls, token)
+  luaX:syntaxerror(ls,
+    string.format(self.LUA_QS.." expected", luaX:token2str(ls, token)))
+end
+
+------------------------------------------------------------------------
+-- prepares error message for display, for limits exceeded
+-- * used only in checklimit()
+------------------------------------------------------------------------
+function luaY:errorlimit(fs, limit, what)
+  local msg = (fs.f.linedefined == 0) and
+    string.format("main function has more than %d %s", limit, what) or
+    string.format("function at line %d has more than %d %s",
+                  fs.f.linedefined, limit, what)
+  luaX:lexerror(fs.ls, msg, 0)
+end
+
+------------------------------------------------------------------------
+-- tests for a token, returns outcome
+-- * return value changed to boolean
+------------------------------------------------------------------------
+function luaY:testnext(ls, c)
+  if ls.t.token == c then
+    luaX:next(ls)
+    return true
+  else
+    return false
+  end
+end
+
+------------------------------------------------------------------------
+-- check for existence of a token, throws error if not found
+------------------------------------------------------------------------
+function luaY:check(ls, c)
+  if ls.t.token ~= c then
+    self:error_expected(ls, c)
+  end
+end
+
+------------------------------------------------------------------------
+-- verify existence of a token, then skip it
+------------------------------------------------------------------------
+function luaY:checknext(ls, c)
+  self:check(ls, c)
+  luaX:next(ls)
+end
+
+------------------------------------------------------------------------
+-- throws error if condition not matched
+------------------------------------------------------------------------
+function luaY:check_condition(ls, c, msg)
+  if not c then luaX:syntaxerror(ls, msg) end
+end
+
+------------------------------------------------------------------------
+-- verifies token conditions are met or else throw error
+------------------------------------------------------------------------
+function luaY:check_match(ls, what, who, where)
+  if not self:testnext(ls, what) then
+    if where == ls.linenumber then
+      self:error_expected(ls, what)
+    else
+      luaX:syntaxerror(ls, string.format(
+        self.LUA_QS.." expected (to close "..self.LUA_QS.." at line %d)",
+        luaX:token2str(ls, what), luaX:token2str(ls, who), where))
+    end
+  end
+end
+
+------------------------------------------------------------------------
+-- expect that token is a name, return the name
+------------------------------------------------------------------------
+function luaY:str_checkname(ls)
+  self:check(ls, "TK_NAME")
+  local ts = ls.t.seminfo
+  luaX:next(ls)
+  return ts
+end
+
+------------------------------------------------------------------------
+-- initialize a struct expdesc, expression description data structure
+------------------------------------------------------------------------
+function luaY:init_exp(e, k, i)
+  e.f, e.t = luaK.NO_JUMP, luaK.NO_JUMP
+  e.k = k
+  e.info = i
+end
+
+------------------------------------------------------------------------
+-- adds given string s in string pool, sets e as VK
+------------------------------------------------------------------------
+function luaY:codestring(ls, e, s)
+  self:init_exp(e, "VK", luaK:stringK(ls.fs, s))
+end
+
+------------------------------------------------------------------------
+-- consume a name token, adds it to string pool, sets e as VK
+------------------------------------------------------------------------
+function luaY:checkname(ls, e)
+  self:codestring(ls, e, self:str_checkname(ls))
+end
+
+------------------------------------------------------------------------
+-- creates struct entry for a local variable
+-- * used only in new_localvar()
+------------------------------------------------------------------------
+function luaY:registerlocalvar(ls, varname)
+  local fs = ls.fs
+  local f = fs.f
+  self:growvector(ls.L, f.locvars, fs.nlocvars, f.sizelocvars,
+                  nil, self.SHRT_MAX, "too many local variables")
+  -- loop to initialize empty f.locvar positions not required
+  f.locvars[fs.nlocvars] = {} -- LocVar
+  f.locvars[fs.nlocvars].varname = varname
+  -- luaC_objbarrier(ls.L, f, varname) /* GC */
+  local nlocvars = fs.nlocvars
+  fs.nlocvars = fs.nlocvars + 1
+  return nlocvars
+end
+
+------------------------------------------------------------------------
+-- creates a new local variable given a name and an offset from nactvar
+-- * used in fornum(), forlist(), parlist(), body()
+------------------------------------------------------------------------
+function luaY:new_localvarliteral(ls, v, n)
+  self:new_localvar(ls, v, n)
+end
+
+------------------------------------------------------------------------
+-- register a local variable, set in active variable list
+------------------------------------------------------------------------
+function luaY:new_localvar(ls, name, n)
+  local fs = ls.fs
+  self:checklimit(fs, fs.nactvar + n + 1, self.LUAI_MAXVARS, "local variables")
+  fs.actvar[fs.nactvar + n] = self:registerlocalvar(ls, name)
+end
+
+------------------------------------------------------------------------
+-- adds nvars number of new local variables, set debug information
+------------------------------------------------------------------------
+function luaY:adjustlocalvars(ls, nvars)
+  local fs = ls.fs
+  fs.nactvar = fs.nactvar + nvars
+  for i = nvars, 1, -1 do
+    self:getlocvar(fs, fs.nactvar - i).startpc = fs.pc
+  end
+end
+
+------------------------------------------------------------------------
+-- removes a number of locals, set debug information
+------------------------------------------------------------------------
+function luaY:removevars(ls, tolevel)
+  local fs = ls.fs
+  while fs.nactvar > tolevel do
+    fs.nactvar = fs.nactvar - 1
+    self:getlocvar(fs, fs.nactvar).endpc = fs.pc
+  end
+end
+
+------------------------------------------------------------------------
+-- returns an existing upvalue index based on the given name, or
+-- creates a new upvalue struct entry and returns the new index
+-- * used only in singlevaraux()
+------------------------------------------------------------------------
+function luaY:indexupvalue(fs, name, v)
+  local f = fs.f
+  for i = 0, f.nups - 1 do
+    if fs.upvalues[i].k == v.k and fs.upvalues[i].info == v.info then
+      lua_assert(f.upvalues[i] == name)
+      return i
+    end
+  end
+  -- new one
+  self:checklimit(fs, f.nups + 1, self.LUAI_MAXUPVALUES, "upvalues")
+  self:growvector(fs.L, f.upvalues, f.nups, f.sizeupvalues,
+                  nil, self.MAX_INT, "")
+  -- loop to initialize empty f.upvalues positions not required
+  f.upvalues[f.nups] = name
+  -- luaC_objbarrier(fs->L, f, name); /* GC */
+  lua_assert(v.k == "VLOCAL" or v.k == "VUPVAL")
+  -- this is a partial copy; only k & info fields used
+  fs.upvalues[f.nups] = { k = v.k, info = v.info }
+  local nups = f.nups
+  f.nups = f.nups + 1
+  return nups
+end
+
+------------------------------------------------------------------------
+-- search the local variable namespace of the given fs for a match
+-- * used only in singlevaraux()
+------------------------------------------------------------------------
+function luaY:searchvar(fs, n)
+  for i = fs.nactvar - 1, 0, -1 do
+    if n == self:getlocvar(fs, i).varname then
+      return i
+    end
+  end
+  return -1  -- not found
+end
+
+------------------------------------------------------------------------
+-- * mark upvalue flags in function states up to a given level
+-- * used only in singlevaraux()
+------------------------------------------------------------------------
+function luaY:markupval(fs, level)
+  local bl = fs.bl
+  while bl and bl.nactvar > level do bl = bl.previous end
+  if bl then bl.upval = true end
+end
+
+------------------------------------------------------------------------
+-- handle locals, globals and upvalues and related processing
+-- * search mechanism is recursive, calls itself to search parents
+-- * used only in singlevar()
+------------------------------------------------------------------------
+function luaY:singlevaraux(fs, n, var, base)
+  if fs == nil then  -- no more levels?
+    self:init_exp(var, "VGLOBAL", luaP.NO_REG)  -- default is global variable
+    return "VGLOBAL"
+  else
+    local v = self:searchvar(fs, n)  -- look up at current level
+    if v >= 0 then
+      self:init_exp(var, "VLOCAL", v)
+      if base == 0 then
+        self:markupval(fs, v)  -- local will be used as an upval
+      end
+      return "VLOCAL"
+    else  -- not found at current level; try upper one
+      if self:singlevaraux(fs.prev, n, var, 0) == "VGLOBAL" then
+        return "VGLOBAL"
+      end
+      var.info = self:indexupvalue(fs, n, var)  -- else was LOCAL or UPVAL
+      var.k = "VUPVAL"  -- upvalue in this level
+      return "VUPVAL"
+    end--if v
+  end--if fs
+end
+
+------------------------------------------------------------------------
+-- consume a name token, creates a variable (global|local|upvalue)
+-- * used in prefixexp(), funcname()
+------------------------------------------------------------------------
+function luaY:singlevar(ls, var)
+  local varname = self:str_checkname(ls)
+  local fs = ls.fs
+  if self:singlevaraux(fs, varname, var, 1) == "VGLOBAL" then
+    var.info = luaK:stringK(fs, varname)  -- info points to global name
+  end
+end
+
+------------------------------------------------------------------------
+-- adjust RHS to match LHS in an assignment
+-- * used in assignment(), forlist(), localstat()
+------------------------------------------------------------------------
+function luaY:adjust_assign(ls, nvars, nexps, e)
+  local fs = ls.fs
+  local extra = nvars - nexps
+  if self:hasmultret(e.k) then
+    extra = extra + 1  -- includes call itself
+    if extra <= 0 then extra = 0 end
+    luaK:setreturns(fs, e, extra)  -- last exp. provides the difference
+    if extra > 1 then luaK:reserveregs(fs, extra - 1) end
+  else
+    if e.k ~= "VVOID" then luaK:exp2nextreg(fs, e) end  -- close last expression
+    if extra > 0 then
+      local reg = fs.freereg
+      luaK:reserveregs(fs, extra)
+      luaK:_nil(fs, reg, extra)
+    end
+  end
+end
+
+------------------------------------------------------------------------
+-- tracks and limits parsing depth, assert check at end of parsing
+------------------------------------------------------------------------
+function luaY:enterlevel(ls)
+  ls.L.nCcalls = ls.L.nCcalls + 1
+  if ls.L.nCcalls > self.LUAI_MAXCCALLS then
+    luaX:lexerror(ls, "chunk has too many syntax levels", 0)
+  end
+end
+
+------------------------------------------------------------------------
+-- tracks parsing depth, a pair with luaY:enterlevel()
+------------------------------------------------------------------------
+function luaY:leavelevel(ls)
+  ls.L.nCcalls = ls.L.nCcalls - 1
+end
+
+------------------------------------------------------------------------
+-- enters a code unit, initializes elements
+------------------------------------------------------------------------
+function luaY:enterblock(fs, bl, isbreakable)
+  bl.breaklist = luaK.NO_JUMP
+  bl.isbreakable = isbreakable
+  bl.nactvar = fs.nactvar
+  bl.upval = false
+  bl.previous = fs.bl
+  fs.bl = bl
+  lua_assert(fs.freereg == fs.nactvar)
+end
+
+------------------------------------------------------------------------
+-- leaves a code unit, close any upvalues
+------------------------------------------------------------------------
+function luaY:leaveblock(fs)
+  local bl = fs.bl
+  fs.bl = bl.previous
+  self:removevars(fs.ls, bl.nactvar)
+  if bl.upval then
+    luaK:codeABC(fs, "OP_CLOSE", bl.nactvar, 0, 0)
+  end
+  -- a block either controls scope or breaks (never both)
+  lua_assert(not bl.isbreakable or not bl.upval)
+  lua_assert(bl.nactvar == fs.nactvar)
+  fs.freereg = fs.nactvar  -- free registers
+  luaK:patchtohere(fs, bl.breaklist)
+end
+
+------------------------------------------------------------------------
+-- implement the instantiation of a function prototype, append list of
+-- upvalues after the instantiation instruction
+-- * used only in body()
+------------------------------------------------------------------------
+function luaY:pushclosure(ls, func, v)
+  local fs = ls.fs
+  local f = fs.f
+  self:growvector(ls.L, f.p, fs.np, f.sizep, nil,
+                  luaP.MAXARG_Bx, "constant table overflow")
+  -- loop to initialize empty f.p positions not required
+  f.p[fs.np] = func.f
+  fs.np = fs.np + 1
+  -- luaC_objbarrier(ls->L, f, func->f); /* C */
+  self:init_exp(v, "VRELOCABLE", luaK:codeABx(fs, "OP_CLOSURE", 0, fs.np - 1))
+  for i = 0, func.f.nups - 1 do
+    local o = (func.upvalues[i].k == "VLOCAL") and "OP_MOVE" or "OP_GETUPVAL"
+    luaK:codeABC(fs, o, 0, func.upvalues[i].info, 0)
+  end
+end
+
+------------------------------------------------------------------------
+-- opening of a function
+------------------------------------------------------------------------
+function luaY:open_func(ls, fs)
+  local L = ls.L
+  local f = self:newproto(ls.L)
+  fs.f = f
+  fs.prev = ls.fs  -- linked list of funcstates
+  fs.ls = ls
+  fs.L = L
+  ls.fs = fs
+  fs.pc = 0
+  fs.lasttarget = -1
+  fs.jpc = luaK.NO_JUMP
+  fs.freereg = 0
+  fs.nk = 0
+  fs.np = 0
+  fs.nlocvars = 0
+  fs.nactvar = 0
+  fs.bl = nil
+  f.source = ls.source
+  f.maxstacksize = 2  -- registers 0/1 are always valid
+  fs.h = {}  -- constant table; was luaH_new call
+  -- anchor table of constants and prototype (to avoid being collected)
+  -- sethvalue2s(L, L->top, fs->h); incr_top(L); /* C */
+  -- setptvalue2s(L, L->top, f); incr_top(L);
+end
+
+------------------------------------------------------------------------
+-- closing of a function
+------------------------------------------------------------------------
+function luaY:close_func(ls)
+  local L = ls.L
+  local fs = ls.fs
+  local f = fs.f
+  self:removevars(ls, 0)
+  luaK:ret(fs, 0, 0)  -- final return
+  -- luaM_reallocvector deleted for f->code, f->lineinfo, f->k, f->p,
+  -- f->locvars, f->upvalues; not required for Lua table arrays
+  f.sizecode = fs.pc
+  f.sizelineinfo = fs.pc
+  f.sizek = fs.nk
+  f.sizep = fs.np
+  f.sizelocvars = fs.nlocvars
+  f.sizeupvalues = f.nups
+  --lua_assert(luaG_checkcode(f))  -- currently not implemented
+  lua_assert(fs.bl == nil)
+  ls.fs = fs.prev
+  -- the following is not required for this implementation; kept here
+  -- for completeness
+  -- L->top -= 2;  /* remove table and prototype from the stack */
+  -- last token read was anchored in defunct function; must reanchor it
+  if fs then self:anchor_token(ls) end
+end
+
+------------------------------------------------------------------------
+-- parser initialization function
+-- * note additional sub-tables needed for LexState, FuncState
+------------------------------------------------------------------------
+function luaY:parser(L, z, buff, name)
+  local lexstate = {}  -- LexState
+        lexstate.t = {}
+        lexstate.lookahead = {}
+  local funcstate = {}  -- FuncState
+        funcstate.upvalues = {}
+        funcstate.actvar = {}
+  -- the following nCcalls initialization added for convenience
+  L.nCcalls = 0
+  lexstate.buff = buff
+  luaX:setinput(L, lexstate, z, name)
+  self:open_func(lexstate, funcstate)
+  funcstate.f.is_vararg = self.VARARG_ISVARARG  -- main func. is always vararg
+  luaX:next(lexstate)  -- read first token
+  self:chunk(lexstate)
+  self:check(lexstate, "TK_EOS")
+  self:close_func(lexstate)
+  lua_assert(funcstate.prev == nil)
+  lua_assert(funcstate.f.nups == 0)
+  lua_assert(lexstate.fs == nil)
+  return funcstate.f
+end
+
+--[[--------------------------------------------------------------------
+-- GRAMMAR RULES
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- parse a function name suffix, for function call specifications
+-- * used in primaryexp(), funcname()
+------------------------------------------------------------------------
+function luaY:field(ls, v)
+  -- field -> ['.' | ':'] NAME
+  local fs = ls.fs
+  local key = {}  -- expdesc
+  luaK:exp2anyreg(fs, v)
+  luaX:next(ls)  -- skip the dot or colon
+  self:checkname(ls, key)
+  luaK:indexed(fs, v, key)
+end
+
+------------------------------------------------------------------------
+-- parse a table indexing suffix, for constructors, expressions
+-- * used in recfield(), primaryexp()
+------------------------------------------------------------------------
+function luaY:yindex(ls, v)
+  -- index -> '[' expr ']'
+  luaX:next(ls)  -- skip the '['
+  self:expr(ls, v)
+  luaK:exp2val(ls.fs, v)
+  self:checknext(ls, "]")
+end
+
+--[[--------------------------------------------------------------------
+-- Rules for Constructors
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- struct ConsControl:
+--   v  -- last list item read (table: struct expdesc)
+--   t  -- table descriptor (table: struct expdesc)
+--   nh  -- total number of 'record' elements
+--   na  -- total number of array elements
+--   tostore  -- number of array elements pending to be stored
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- parse a table record (hash) field
+-- * used in constructor()
+------------------------------------------------------------------------
+function luaY:recfield(ls, cc)
+  -- recfield -> (NAME | '['exp1']') = exp1
+  local fs = ls.fs
+  local reg = ls.fs.freereg
+  local key, val = {}, {}  -- expdesc
+  if ls.t.token == "TK_NAME" then
+    self:checklimit(fs, cc.nh, self.MAX_INT, "items in a constructor")
+    self:checkname(ls, key)
+  else  -- ls->t.token == '['
+    self:yindex(ls, key)
+  end
+  cc.nh = cc.nh + 1
+  self:checknext(ls, "=")
+  local rkkey = luaK:exp2RK(fs, key)
+  self:expr(ls, val)
+  luaK:codeABC(fs, "OP_SETTABLE", cc.t.info, rkkey, luaK:exp2RK(fs, val))
+  fs.freereg = reg  -- free registers
+end
+
+------------------------------------------------------------------------
+-- emit a set list instruction if enough elements (LFIELDS_PER_FLUSH)
+-- * used in constructor()
+------------------------------------------------------------------------
+function luaY:closelistfield(fs, cc)
+  if cc.v.k == "VVOID" then return end  -- there is no list item
+  luaK:exp2nextreg(fs, cc.v)
+  cc.v.k = "VVOID"
+  if cc.tostore == luaP.LFIELDS_PER_FLUSH then
+    luaK:setlist(fs, cc.t.info, cc.na, cc.tostore)  -- flush
+    cc.tostore = 0  -- no more items pending
+  end
+end
+
+------------------------------------------------------------------------
+-- emit a set list instruction at the end of parsing list constructor
+-- * used in constructor()
+------------------------------------------------------------------------
+function luaY:lastlistfield(fs, cc)
+  if cc.tostore == 0 then return end
+  if self:hasmultret(cc.v.k) then
+    luaK:setmultret(fs, cc.v)
+    luaK:setlist(fs, cc.t.info, cc.na, self.LUA_MULTRET)
+    cc.na = cc.na - 1  -- do not count last expression (unknown number of elements)
+  else
+    if cc.v.k ~= "VVOID" then
+      luaK:exp2nextreg(fs, cc.v)
+    end
+    luaK:setlist(fs, cc.t.info, cc.na, cc.tostore)
+  end
+end
+
+------------------------------------------------------------------------
+-- parse a table list (array) field
+-- * used in constructor()
+------------------------------------------------------------------------
+function luaY:listfield(ls, cc)
+  self:expr(ls, cc.v)
+  self:checklimit(ls.fs, cc.na, self.MAX_INT, "items in a constructor")
+  cc.na = cc.na + 1
+  cc.tostore = cc.tostore + 1
+end
+
+------------------------------------------------------------------------
+-- parse a table constructor
+-- * used in funcargs(), simpleexp()
+------------------------------------------------------------------------
+function luaY:constructor(ls, t)
+  -- constructor -> '{' [ field { fieldsep field } [ fieldsep ] ] '}'
+  -- field -> recfield | listfield
+  -- fieldsep -> ',' | ';'
+  local fs = ls.fs
+  local line = ls.linenumber
+  local pc = luaK:codeABC(fs, "OP_NEWTABLE", 0, 0, 0)
+  local cc = {}  -- ConsControl
+        cc.v = {}
+  cc.na, cc.nh, cc.tostore = 0, 0, 0
+  cc.t = t
+  self:init_exp(t, "VRELOCABLE", pc)
+  self:init_exp(cc.v, "VVOID", 0)  -- no value (yet)
+  luaK:exp2nextreg(ls.fs, t)  -- fix it at stack top (for gc)
+  self:checknext(ls, "{")
+  repeat
+    lua_assert(cc.v.k == "VVOID" or cc.tostore > 0)
+    if ls.t.token == "}" then break end
+    self:closelistfield(fs, cc)
+    local c = ls.t.token
+
+    if c == "TK_NAME" then  -- may be listfields or recfields
+      luaX:lookahead(ls)
+      if ls.lookahead.token ~= "=" then  -- expression?
+        self:listfield(ls, cc)
+      else
+        self:recfield(ls, cc)
+      end
+    elseif c == "[" then  -- constructor_item -> recfield
+      self:recfield(ls, cc)
+    else  -- constructor_part -> listfield
+      self:listfield(ls, cc)
+    end
+  until not self:testnext(ls, ",") and not self:testnext(ls, ";")
+  self:check_match(ls, "}", "{", line)
+  self:lastlistfield(fs, cc)
+  luaP:SETARG_B(fs.f.code[pc], self:int2fb(cc.na)) -- set initial array size
+  luaP:SETARG_C(fs.f.code[pc], self:int2fb(cc.nh)) -- set initial table size
+end
+
+-- }======================================================================
+
+------------------------------------------------------------------------
+-- parse the arguments (parameters) of a function declaration
+-- * used in body()
+------------------------------------------------------------------------
+function luaY:parlist(ls)
+  -- parlist -> [ param { ',' param } ]
+  local fs = ls.fs
+  local f = fs.f
+  local nparams = 0
+  f.is_vararg = 0
+  if ls.t.token ~= ")" then  -- is 'parlist' not empty?
+    repeat
+      local c = ls.t.token
+      if c == "TK_NAME" then  -- param -> NAME
+        self:new_localvar(ls, self:str_checkname(ls), nparams)
+        nparams = nparams + 1
+      elseif c == "TK_DOTS" then  -- param -> `...'
+        luaX:next(ls)
+-- [[
+-- #if defined(LUA_COMPAT_VARARG)
+        -- use `arg' as default name
+        self:new_localvarliteral(ls, "arg", nparams)
+        nparams = nparams + 1
+        f.is_vararg = self.VARARG_HASARG + self.VARARG_NEEDSARG
+-- #endif
+--]]
+        f.is_vararg = f.is_vararg + self.VARARG_ISVARARG
+      else
+        luaX:syntaxerror(ls, "<name> or "..self:LUA_QL("...").." expected")
+      end
+    until f.is_vararg ~= 0 or not self:testnext(ls, ",")
+  end--if
+  self:adjustlocalvars(ls, nparams)
+  -- NOTE: the following works only when HASARG_MASK is 2!
+  f.numparams = fs.nactvar - (f.is_vararg % self.HASARG_MASK)
+  luaK:reserveregs(fs, fs.nactvar)  -- reserve register for parameters
+end
+
+------------------------------------------------------------------------
+-- parse function declaration body
+-- * used in simpleexp(), localfunc(), funcstat()
+------------------------------------------------------------------------
+function luaY:body(ls, e, needself, line)
+  -- body ->  '(' parlist ')' chunk END
+  local new_fs = {}  -- FuncState
+        new_fs.upvalues = {}
+        new_fs.actvar = {}
+  self:open_func(ls, new_fs)
+  new_fs.f.lineDefined = line
+  self:checknext(ls, "(")
+  if needself then
+    self:new_localvarliteral(ls, "self", 0)
+    self:adjustlocalvars(ls, 1)
+  end
+  self:parlist(ls)
+  self:checknext(ls, ")")
+  self:chunk(ls)
+  new_fs.f.lastlinedefined = ls.linenumber
+  self:check_match(ls, "TK_END", "TK_FUNCTION", line)
+  self:close_func(ls)
+  self:pushclosure(ls, new_fs, e)
+end
+
+------------------------------------------------------------------------
+-- parse a list of comma-separated expressions
+-- * used is multiple locations
+------------------------------------------------------------------------
+function luaY:explist1(ls, v)
+  -- explist1 -> expr { ',' expr }
+  local n = 1  -- at least one expression
+  self:expr(ls, v)
+  while self:testnext(ls, ",") do
+    luaK:exp2nextreg(ls.fs, v)
+    self:expr(ls, v)
+    n = n + 1
+  end
+  return n
+end
+
+------------------------------------------------------------------------
+-- parse the parameters of a function call
+-- * contrast with parlist(), used in function declarations
+-- * used in primaryexp()
+------------------------------------------------------------------------
+function luaY:funcargs(ls, f)
+  local fs = ls.fs
+  local args = {}  -- expdesc
+  local nparams
+  local line = ls.linenumber
+  local c = ls.t.token
+  if c == "(" then  -- funcargs -> '(' [ explist1 ] ')'
+    if line ~= ls.lastline then
+      luaX:syntaxerror(ls, "ambiguous syntax (function call x new statement)")
+    end
+    luaX:next(ls)
+    if ls.t.token == ")" then  -- arg list is empty?
+      args.k = "VVOID"
+    else
+      self:explist1(ls, args)
+      luaK:setmultret(fs, args)
+    end
+    self:check_match(ls, ")", "(", line)
+  elseif c == "{" then  -- funcargs -> constructor
+    self:constructor(ls, args)
+  elseif c == "TK_STRING" then  -- funcargs -> STRING
+    self:codestring(ls, args, ls.t.seminfo)
+    luaX:next(ls)  -- must use 'seminfo' before 'next'
+  else
+    luaX:syntaxerror(ls, "function arguments expected")
+    return
+  end
+  lua_assert(f.k == "VNONRELOC")
+  local base = f.info  -- base register for call
+  if self:hasmultret(args.k) then
+    nparams = self.LUA_MULTRET  -- open call
+  else
+    if args.k ~= "VVOID" then
+      luaK:exp2nextreg(fs, args)  -- close last argument
+    end
+    nparams = fs.freereg - (base + 1)
+  end
+  self:init_exp(f, "VCALL", luaK:codeABC(fs, "OP_CALL", base, nparams + 1, 2))
+  luaK:fixline(fs, line)
+  fs.freereg = base + 1  -- call remove function and arguments and leaves
+                         -- (unless changed) one result
+end
+
+--[[--------------------------------------------------------------------
+-- Expression parsing
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- parses an expression in parentheses or a single variable
+-- * used in primaryexp()
+------------------------------------------------------------------------
+function luaY:prefixexp(ls, v)
+  -- prefixexp -> NAME | '(' expr ')'
+  local c = ls.t.token
+  if c == "(" then
+    local line = ls.linenumber
+    luaX:next(ls)
+    self:expr(ls, v)
+    self:check_match(ls, ")", "(", line)
+    luaK:dischargevars(ls.fs, v)
+  elseif c == "TK_NAME" then
+    self:singlevar(ls, v)
+  else
+    luaX:syntaxerror(ls, "unexpected symbol")
+  end--if c
+  return
+end
+
+------------------------------------------------------------------------
+-- parses a prefixexp (an expression in parentheses or a single variable)
+-- or a function call specification
+-- * used in simpleexp(), assignment(), exprstat()
+------------------------------------------------------------------------
+function luaY:primaryexp(ls, v)
+  -- primaryexp ->
+  --    prefixexp { '.' NAME | '[' exp ']' | ':' NAME funcargs | funcargs }
+  local fs = ls.fs
+  self:prefixexp(ls, v)
+  while true do
+    local c = ls.t.token
+    if c == "." then  -- field
+      self:field(ls, v)
+    elseif c == "[" then  -- '[' exp1 ']'
+      local key = {}  -- expdesc
+      luaK:exp2anyreg(fs, v)
+      self:yindex(ls, key)
+      luaK:indexed(fs, v, key)
+    elseif c == ":" then  -- ':' NAME funcargs
+      local key = {}  -- expdesc
+      luaX:next(ls)
+      self:checkname(ls, key)
+      luaK:_self(fs, v, key)
+      self:funcargs(ls, v)
+    elseif c == "(" or c == "TK_STRING" or c == "{" then  -- funcargs
+      luaK:exp2nextreg(fs, v)
+      self:funcargs(ls, v)
+    else
+      return
+    end--if c
+  end--while
+end
+
+------------------------------------------------------------------------
+-- parses general expression types, constants handled here
+-- * used in subexpr()
+------------------------------------------------------------------------
+function luaY:simpleexp(ls, v)
+  -- simpleexp -> NUMBER | STRING | NIL | TRUE | FALSE | ... |
+  --              constructor | FUNCTION body | primaryexp
+  local c = ls.t.token
+  if c == "TK_NUMBER" then
+    self:init_exp(v, "VKNUM", 0)
+    v.nval = ls.t.seminfo
+  elseif c == "TK_STRING" then
+    self:codestring(ls, v, ls.t.seminfo)
+  elseif c == "TK_NIL" then
+    self:init_exp(v, "VNIL", 0)
+  elseif c == "TK_TRUE" then
+    self:init_exp(v, "VTRUE", 0)
+  elseif c == "TK_FALSE" then
+    self:init_exp(v, "VFALSE", 0)
+  elseif c == "TK_DOTS" then  -- vararg
+    local fs = ls.fs
+    self:check_condition(ls, fs.f.is_vararg ~= 0,
+                    "cannot use "..self:LUA_QL("...").." outside a vararg function");
+    -- NOTE: the following substitutes for a bitop, but is value-specific
+    local is_vararg = fs.f.is_vararg
+    if is_vararg >= self.VARARG_NEEDSARG then
+      fs.f.is_vararg = is_vararg - self.VARARG_NEEDSARG  -- don't need 'arg'
+    end
+    self:init_exp(v, "VVARARG", luaK:codeABC(fs, "OP_VARARG", 0, 1, 0))
+  elseif c == "{" then  -- constructor
+    self:constructor(ls, v)
+    return
+  elseif c == "TK_FUNCTION" then
+    luaX:next(ls)
+    self:body(ls, v, false, ls.linenumber)
+    return
+  else
+    self:primaryexp(ls, v)
+    return
+  end--if c
+  luaX:next(ls)
+end
+
+------------------------------------------------------------------------
+-- Translates unary operators tokens if found, otherwise returns
+-- OPR_NOUNOPR. getunopr() and getbinopr() are used in subexpr().
+-- * used in subexpr()
+------------------------------------------------------------------------
+function luaY:getunopr(op)
+  if op == "TK_NOT" then
+    return "OPR_NOT"
+  elseif op == "-" then
+    return "OPR_MINUS"
+  elseif op == "#" then
+    return "OPR_LEN"
+  else
+    return "OPR_NOUNOPR"
+  end
+end
+
+------------------------------------------------------------------------
+-- Translates binary operator tokens if found, otherwise returns
+-- OPR_NOBINOPR. Code generation uses OPR_* style tokens.
+-- * used in subexpr()
+------------------------------------------------------------------------
+luaY.getbinopr_table = {
+  ["+"] = "OPR_ADD",
+  ["-"] = "OPR_SUB",
+  ["*"] = "OPR_MUL",
+  ["/"] = "OPR_DIV",
+  ["%"] = "OPR_MOD",
+  ["^"] = "OPR_POW",
+  ["TK_CONCAT"] = "OPR_CONCAT",
+  ["TK_NE"] = "OPR_NE",
+  ["TK_EQ"] = "OPR_EQ",
+  ["<"] = "OPR_LT",
+  ["TK_LE"] = "OPR_LE",
+  [">"] = "OPR_GT",
+  ["TK_GE"] = "OPR_GE",
+  ["TK_AND"] = "OPR_AND",
+  ["TK_OR"] = "OPR_OR",
+}
+function luaY:getbinopr(op)
+  local opr = self.getbinopr_table[op]
+  if opr then return opr else return "OPR_NOBINOPR" end
+end
+
+------------------------------------------------------------------------
+-- the following priority table consists of pairs of left/right values
+-- for binary operators (was a static const struct); grep for ORDER OPR
+-- * the following struct is replaced:
+--   static const struct {
+--     lu_byte left;  /* left priority for each binary operator */
+--     lu_byte right; /* right priority */
+--   } priority[] = {  /* ORDER OPR */
+------------------------------------------------------------------------
+luaY.priority = {
+  {6, 6}, {6, 6}, {7, 7}, {7, 7}, {7, 7}, -- `+' `-' `/' `%'
+  {10, 9}, {5, 4},                 -- power and concat (right associative)
+  {3, 3}, {3, 3},                  -- equality
+  {3, 3}, {3, 3}, {3, 3}, {3, 3},  -- order
+  {2, 2}, {1, 1}                   -- logical (and/or)
+}
+
+luaY.UNARY_PRIORITY = 8  -- priority for unary operators
+
+------------------------------------------------------------------------
+-- Parse subexpressions. Includes handling of unary operators and binary
+-- operators. A subexpr is given the rhs priority level of the operator
+-- immediately left of it, if any (limit is -1 if none,) and if a binop
+-- is found, limit is compared with the lhs priority level of the binop
+-- in order to determine which executes first.
+------------------------------------------------------------------------
+
+------------------------------------------------------------------------
+-- subexpr -> (simpleexp | unop subexpr) { binop subexpr }
+-- where 'binop' is any binary operator with a priority higher than 'limit'
+-- * for priority lookups with self.priority[], 1=left and 2=right
+-- * recursively called
+-- * used in expr()
+------------------------------------------------------------------------
+function luaY:subexpr(ls, v, limit)
+  self:enterlevel(ls)
+  local uop = self:getunopr(ls.t.token)
+  if uop ~= "OPR_NOUNOPR" then
+    luaX:next(ls)
+    self:subexpr(ls, v, self.UNARY_PRIORITY)
+    luaK:prefix(ls.fs, uop, v)
+  else
+    self:simpleexp(ls, v)
+  end
+  -- expand while operators have priorities higher than 'limit'
+  local op = self:getbinopr(ls.t.token)
+  while op ~= "OPR_NOBINOPR" and self.priority[luaK.BinOpr[op] + 1][1] > limit do
+    local v2 = {}  -- expdesc
+    luaX:next(ls)
+    luaK:infix(ls.fs, op, v)
+    -- read sub-expression with higher priority
+    local nextop = self:subexpr(ls, v2, self.priority[luaK.BinOpr[op] + 1][2])
+    luaK:posfix(ls.fs, op, v, v2)
+    op = nextop
+  end
+  self:leavelevel(ls)
+  return op  -- return first untreated operator
+end
+
+------------------------------------------------------------------------
+-- Expression parsing starts here. Function subexpr is entered with the
+-- left operator (which is non-existent) priority of -1, which is lower
+-- than all actual operators. Expr information is returned in parm v.
+-- * used in multiple locations
+------------------------------------------------------------------------
+function luaY:expr(ls, v)
+  self:subexpr(ls, v, 0)
+end
+
+-- }====================================================================
+
+--[[--------------------------------------------------------------------
+-- Rules for Statements
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- checks next token, used as a look-ahead
+-- * returns boolean instead of 0|1
+-- * used in retstat(), chunk()
+------------------------------------------------------------------------
+function luaY:block_follow(token)
+  if token == "TK_ELSE" or token == "TK_ELSEIF" or token == "TK_END"
+     or token == "TK_UNTIL" or token == "TK_EOS" then
+    return true
+  else
+    return false
+  end
+end
+
+------------------------------------------------------------------------
+-- parse a code block or unit
+-- * used in multiple functions
+------------------------------------------------------------------------
+function luaY:block(ls)
+  -- block -> chunk
+  local fs = ls.fs
+  local bl = {}  -- BlockCnt
+  self:enterblock(fs, bl, false)
+  self:chunk(ls)
+  lua_assert(bl.breaklist == luaK.NO_JUMP)
+  self:leaveblock(fs)
+end
+
+------------------------------------------------------------------------
+-- structure to chain all variables in the left-hand side of an
+-- assignment
+-- struct LHS_assign:
+--   prev  -- (table: struct LHS_assign)
+--   v  -- variable (global, local, upvalue, or indexed) (table: expdesc)
+------------------------------------------------------------------------
+
+------------------------------------------------------------------------
+-- check whether, in an assignment to a local variable, the local variable
+-- is needed in a previous assignment (to a table). If so, save original
+-- local value in a safe place and use this safe copy in the previous
+-- assignment.
+-- * used in assignment()
+------------------------------------------------------------------------
+function luaY:check_conflict(ls, lh, v)
+  local fs = ls.fs
+  local extra = fs.freereg  -- eventual position to save local variable
+  local conflict = false
+  while lh do
+    if lh.v.k == "VINDEXED" then
+      if lh.v.info == v.info then  -- conflict?
+        conflict = true
+        lh.v.info = extra  -- previous assignment will use safe copy
+      end
+      if lh.v.aux == v.info then  -- conflict?
+        conflict = true
+        lh.v.aux = extra  -- previous assignment will use safe copy
+      end
+    end
+    lh = lh.prev
+  end
+  if conflict then
+    luaK:codeABC(fs, "OP_MOVE", fs.freereg, v.info, 0)  -- make copy
+    luaK:reserveregs(fs, 1)
+  end
+end
+
+------------------------------------------------------------------------
+-- parse a variable assignment sequence
+-- * recursively called
+-- * used in exprstat()
+------------------------------------------------------------------------
+function luaY:assignment(ls, lh, nvars)
+  local e = {}  -- expdesc
+  -- test was: VLOCAL <= lh->v.k && lh->v.k <= VINDEXED
+  local c = lh.v.k
+  self:check_condition(ls, c == "VLOCAL" or c == "VUPVAL" or c == "VGLOBAL"
+                       or c == "VINDEXED", "syntax error")
+  if self:testnext(ls, ",") then  -- assignment -> ',' primaryexp assignment
+    local nv = {}  -- LHS_assign
+          nv.v = {}
+    nv.prev = lh
+    self:primaryexp(ls, nv.v)
+    if nv.v.k == "VLOCAL" then
+      self:check_conflict(ls, lh, nv.v)
+    end
+    self:checklimit(ls.fs, nvars, self.LUAI_MAXCCALLS - ls.L.nCcalls,
+                    "variables in assignment")
+    self:assignment(ls, nv, nvars + 1)
+  else  -- assignment -> '=' explist1
+    self:checknext(ls, "=")
+    local nexps = self:explist1(ls, e)
+    if nexps ~= nvars then
+      self:adjust_assign(ls, nvars, nexps, e)
+      if nexps > nvars then
+        ls.fs.freereg = ls.fs.freereg - (nexps - nvars)  -- remove extra values
+      end
+    else
+      luaK:setoneret(ls.fs, e)  -- close last expression
+      luaK:storevar(ls.fs, lh.v, e)
+      return  -- avoid default
+    end
+  end
+  self:init_exp(e, "VNONRELOC", ls.fs.freereg - 1)  -- default assignment
+  luaK:storevar(ls.fs, lh.v, e)
+end
+
+------------------------------------------------------------------------
+-- parse condition in a repeat statement or an if control structure
+-- * used in repeatstat(), test_then_block()
+------------------------------------------------------------------------
+function luaY:cond(ls)
+  -- cond -> exp
+  local v = {}  -- expdesc
+  self:expr(ls, v)  -- read condition
+  if v.k == "VNIL" then v.k = "VFALSE" end  -- 'falses' are all equal here
+  luaK:goiftrue(ls.fs, v)
+  return v.f
+end
+
+------------------------------------------------------------------------
+-- parse a break statement
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:breakstat(ls)
+  -- stat -> BREAK
+  local fs = ls.fs
+  local bl = fs.bl
+  local upval = false
+  while bl and not bl.isbreakable do
+    if bl.upval then upval = true end
+    bl = bl.previous
+  end
+  if not bl then
+    luaX:syntaxerror(ls, "no loop to break")
+  end
+  if upval then
+    luaK:codeABC(fs, "OP_CLOSE", bl.nactvar, 0, 0)
+  end
+  bl.breaklist = luaK:concat(fs, bl.breaklist, luaK:jump(fs))
+end
+
+------------------------------------------------------------------------
+-- parse a while-do control structure, body processed by block()
+-- * with dynamic array sizes, MAXEXPWHILE + EXTRAEXP limits imposed by
+--   the function's implementation can be removed
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:whilestat(ls, line)
+  -- whilestat -> WHILE cond DO block END
+  local fs = ls.fs
+  local bl = {}  -- BlockCnt
+  luaX:next(ls)  -- skip WHILE
+  local whileinit = luaK:getlabel(fs)
+  local condexit = self:cond(ls)
+  self:enterblock(fs, bl, true)
+  self:checknext(ls, "TK_DO")
+  self:block(ls)
+  luaK:patchlist(fs, luaK:jump(fs), whileinit)
+  self:check_match(ls, "TK_END", "TK_WHILE", line)
+  self:leaveblock(fs)
+  luaK:patchtohere(fs, condexit)  -- false conditions finish the loop
+end
+
+------------------------------------------------------------------------
+-- parse a repeat-until control structure, body parsed by chunk()
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:repeatstat(ls, line)
+  -- repeatstat -> REPEAT block UNTIL cond
+  local fs = ls.fs
+  local repeat_init = luaK:getlabel(fs)
+  local bl1, bl2 = {}, {}  -- BlockCnt
+  self:enterblock(fs, bl1, true)  -- loop block
+  self:enterblock(fs, bl2, false)  -- scope block
+  luaX:next(ls)  -- skip REPEAT
+  self:chunk(ls)
+  self:check_match(ls, "TK_UNTIL", "TK_REPEAT", line)
+  local condexit = self:cond(ls)  -- read condition (inside scope block)
+  if not bl2.upval then  -- no upvalues?
+    self:leaveblock(fs)  -- finish scope
+    luaK:patchlist(ls.fs, condexit, repeat_init)  -- close the loop
+  else  -- complete semantics when there are upvalues
+    self:breakstat(ls)  -- if condition then break
+    luaK:patchtohere(ls.fs, condexit)  -- else...
+    self:leaveblock(fs)  -- finish scope...
+    luaK:patchlist(ls.fs, luaK:jump(fs), repeat_init)  -- and repeat
+  end
+  self:leaveblock(fs)  -- finish loop
+end
+
+------------------------------------------------------------------------
+-- parse the single expressions needed in numerical for loops
+-- * used in fornum()
+------------------------------------------------------------------------
+function luaY:exp1(ls)
+  local e = {}  -- expdesc
+  self:expr(ls, e)
+  local k = e.k
+  luaK:exp2nextreg(ls.fs, e)
+  return k
+end
+
+------------------------------------------------------------------------
+-- parse a for loop body for both versions of the for loop
+-- * used in fornum(), forlist()
+------------------------------------------------------------------------
+function luaY:forbody(ls, base, line, nvars, isnum)
+  -- forbody -> DO block
+  local bl = {}  -- BlockCnt
+  local fs = ls.fs
+  self:adjustlocalvars(ls, 3)  -- control variables
+  self:checknext(ls, "TK_DO")
+  local prep = isnum and luaK:codeAsBx(fs, "OP_FORPREP", base, luaK.NO_JUMP)
+                     or luaK:jump(fs)
+  self:enterblock(fs, bl, false)  -- scope for declared variables
+  self:adjustlocalvars(ls, nvars)
+  luaK:reserveregs(fs, nvars)
+  self:block(ls)
+  self:leaveblock(fs)  -- end of scope for declared variables
+  luaK:patchtohere(fs, prep)
+  local endfor = isnum and luaK:codeAsBx(fs, "OP_FORLOOP", base, luaK.NO_JUMP)
+                       or luaK:codeABC(fs, "OP_TFORLOOP", base, 0, nvars)
+  luaK:fixline(fs, line)  -- pretend that `OP_FOR' starts the loop
+  luaK:patchlist(fs, isnum and endfor or luaK:jump(fs), prep + 1)
+end
+
+------------------------------------------------------------------------
+-- parse a numerical for loop, calls forbody()
+-- * used in forstat()
+------------------------------------------------------------------------
+function luaY:fornum(ls, varname, line)
+  -- fornum -> NAME = exp1,exp1[,exp1] forbody
+  local fs = ls.fs
+  local base = fs.freereg
+  self:new_localvarliteral(ls, "(for index)", 0)
+  self:new_localvarliteral(ls, "(for limit)", 1)
+  self:new_localvarliteral(ls, "(for step)", 2)
+  self:new_localvar(ls, varname, 3)
+  self:checknext(ls, '=')
+  self:exp1(ls)  -- initial value
+  self:checknext(ls, ",")
+  self:exp1(ls)  -- limit
+  if self:testnext(ls, ",") then
+    self:exp1(ls)  -- optional step
+  else  -- default step = 1
+    luaK:codeABx(fs, "OP_LOADK", fs.freereg, luaK:numberK(fs, 1))
+    luaK:reserveregs(fs, 1)
+  end
+  self:forbody(ls, base, line, 1, true)
+end
+
+------------------------------------------------------------------------
+-- parse a generic for loop, calls forbody()
+-- * used in forstat()
+------------------------------------------------------------------------
+function luaY:forlist(ls, indexname)
+  -- forlist -> NAME {,NAME} IN explist1 forbody
+  local fs = ls.fs
+  local e = {}  -- expdesc
+  local nvars = 0
+  local base = fs.freereg
+  -- create control variables
+  self:new_localvarliteral(ls, "(for generator)", nvars)
+  nvars = nvars + 1
+  self:new_localvarliteral(ls, "(for state)", nvars)
+  nvars = nvars + 1
+  self:new_localvarliteral(ls, "(for control)", nvars)
+  nvars = nvars + 1
+  -- create declared variables
+  self:new_localvar(ls, indexname, nvars)
+  nvars = nvars + 1
+  while self:testnext(ls, ",") do
+    self:new_localvar(ls, self:str_checkname(ls), nvars)
+    nvars = nvars + 1
+  end
+  self:checknext(ls, "TK_IN")
+  local line = ls.linenumber
+  self:adjust_assign(ls, 3, self:explist1(ls, e), e)
+  luaK:checkstack(fs, 3)  -- extra space to call generator
+  self:forbody(ls, base, line, nvars - 3, false)
+end
+
+------------------------------------------------------------------------
+-- initial parsing for a for loop, calls fornum() or forlist()
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:forstat(ls, line)
+  -- forstat -> FOR (fornum | forlist) END
+  local fs = ls.fs
+  local bl = {}  -- BlockCnt
+  self:enterblock(fs, bl, true)  -- scope for loop and control variables
+  luaX:next(ls)  -- skip `for'
+  local varname = self:str_checkname(ls)  -- first variable name
+  local c = ls.t.token
+  if c == "=" then
+    self:fornum(ls, varname, line)
+  elseif c == "," or c == "TK_IN" then
+    self:forlist(ls, varname)
+  else
+    luaX:syntaxerror(ls, self:LUA_QL("=").." or "..self:LUA_QL("in").." expected")
+  end
+  self:check_match(ls, "TK_END", "TK_FOR", line)
+  self:leaveblock(fs)  -- loop scope (`break' jumps to this point)
+end
+
+------------------------------------------------------------------------
+-- parse part of an if control structure, including the condition
+-- * used in ifstat()
+------------------------------------------------------------------------
+function luaY:test_then_block(ls)
+  -- test_then_block -> [IF | ELSEIF] cond THEN block
+  luaX:next(ls)  -- skip IF or ELSEIF
+  local condexit = self:cond(ls)
+  self:checknext(ls, "TK_THEN")
+  self:block(ls)  -- `then' part
+  return condexit
+end
+
+------------------------------------------------------------------------
+-- parse an if control structure
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:ifstat(ls, line)
+  -- ifstat -> IF cond THEN block {ELSEIF cond THEN block} [ELSE block] END
+  local fs = ls.fs
+  local escapelist = luaK.NO_JUMP
+  local flist = self:test_then_block(ls)  -- IF cond THEN block
+  while ls.t.token == "TK_ELSEIF" do
+    escapelist = luaK:concat(fs, escapelist, luaK:jump(fs))
+    luaK:patchtohere(fs, flist)
+    flist = self:test_then_block(ls)  -- ELSEIF cond THEN block
+  end
+  if ls.t.token == "TK_ELSE" then
+    escapelist = luaK:concat(fs, escapelist, luaK:jump(fs))
+    luaK:patchtohere(fs, flist)
+    luaX:next(ls)  -- skip ELSE (after patch, for correct line info)
+    self:block(ls)  -- 'else' part
+  else
+    escapelist = luaK:concat(fs, escapelist, flist)
+  end
+  luaK:patchtohere(fs, escapelist)
+  self:check_match(ls, "TK_END", "TK_IF", line)
+end
+
+------------------------------------------------------------------------
+-- parse a local function statement
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:localfunc(ls)
+  local v, b = {}, {}  -- expdesc
+  local fs = ls.fs
+  self:new_localvar(ls, self:str_checkname(ls), 0)
+  self:init_exp(v, "VLOCAL", fs.freereg)
+  luaK:reserveregs(fs, 1)
+  self:adjustlocalvars(ls, 1)
+  self:body(ls, b, false, ls.linenumber)
+  luaK:storevar(fs, v, b)
+  -- debug information will only see the variable after this point!
+  self:getlocvar(fs, fs.nactvar - 1).startpc = fs.pc
+end
+
+------------------------------------------------------------------------
+-- parse a local variable declaration statement
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:localstat(ls)
+  -- stat -> LOCAL NAME {',' NAME} ['=' explist1]
+  local nvars = 0
+  local nexps
+  local e = {}  -- expdesc
+  repeat
+    self:new_localvar(ls, self:str_checkname(ls), nvars)
+    nvars = nvars + 1
+  until not self:testnext(ls, ",")
+  if self:testnext(ls, "=") then
+    nexps = self:explist1(ls, e)
+  else
+    e.k = "VVOID"
+    nexps = 0
+  end
+  self:adjust_assign(ls, nvars, nexps, e)
+  self:adjustlocalvars(ls, nvars)
+end
+
+------------------------------------------------------------------------
+-- parse a function name specification
+-- * used in funcstat()
+------------------------------------------------------------------------
+function luaY:funcname(ls, v)
+  -- funcname -> NAME {field} [':' NAME]
+  local needself = false
+  self:singlevar(ls, v)
+  while ls.t.token == "." do
+    self:field(ls, v)
+  end
+  if ls.t.token == ":" then
+    needself = true
+    self:field(ls, v)
+  end
+  return needself
+end
+
+------------------------------------------------------------------------
+-- parse a function statement
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:funcstat(ls, line)
+  -- funcstat -> FUNCTION funcname body
+  local v, b = {}, {}  -- expdesc
+  luaX:next(ls)  -- skip FUNCTION
+  local needself = self:funcname(ls, v)
+  self:body(ls, b, needself, line)
+  luaK:storevar(ls.fs, v, b)
+  luaK:fixline(ls.fs, line)  -- definition 'happens' in the first line
+end
+
+------------------------------------------------------------------------
+-- parse a function call with no returns or an assignment statement
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:exprstat(ls)
+  -- stat -> func | assignment
+  local fs = ls.fs
+  local v = {}  -- LHS_assign
+        v.v = {}
+  self:primaryexp(ls, v.v)
+  if v.v.k == "VCALL" then  -- stat -> func
+    luaP:SETARG_C(luaK:getcode(fs, v.v), 1)  -- call statement uses no results
+  else  -- stat -> assignment
+    v.prev = nil
+    self:assignment(ls, v, 1)
+  end
+end
+
+------------------------------------------------------------------------
+-- parse a return statement
+-- * used in statements()
+------------------------------------------------------------------------
+function luaY:retstat(ls)
+  -- stat -> RETURN explist
+  local fs = ls.fs
+  local e = {}  -- expdesc
+  local first, nret  -- registers with returned values
+  luaX:next(ls)  -- skip RETURN
+  if self:block_follow(ls.t.token) or ls.t.token == ";" then
+    first, nret = 0, 0  -- return no values
+  else
+    nret = self:explist1(ls, e)  -- optional return values
+    if self:hasmultret(e.k) then
+      luaK:setmultret(fs, e)
+      if e.k == "VCALL" and nret == 1 then  -- tail call?
+        luaP:SET_OPCODE(luaK:getcode(fs, e), "OP_TAILCALL")
+        lua_assert(luaP:GETARG_A(luaK:getcode(fs, e)) == fs.nactvar)
+      end
+      first = fs.nactvar
+      nret = self.LUA_MULTRET  -- return all values
+    else
+      if nret == 1 then  -- only one single value?
+        first = luaK:exp2anyreg(fs, e)
+      else
+        luaK:exp2nextreg(fs, e)  -- values must go to the 'stack'
+        first = fs.nactvar  -- return all 'active' values
+        lua_assert(nret == fs.freereg - first)
+      end
+    end--if
+  end--if
+  luaK:ret(fs, first, nret)
+end
+
+------------------------------------------------------------------------
+-- initial parsing for statements, calls a lot of functions
+-- * returns boolean instead of 0|1
+-- * used in chunk()
+------------------------------------------------------------------------
+function luaY:statement(ls)
+  local line = ls.linenumber  -- may be needed for error messages
+  local c = ls.t.token
+  if c == "TK_IF" then  -- stat -> ifstat
+    self:ifstat(ls, line)
+    return false
+  elseif c == "TK_WHILE" then  -- stat -> whilestat
+    self:whilestat(ls, line)
+    return false
+  elseif c == "TK_DO" then  -- stat -> DO block END
+    luaX:next(ls)  -- skip DO
+    self:block(ls)
+    self:check_match(ls, "TK_END", "TK_DO", line)
+    return false
+  elseif c == "TK_FOR" then  -- stat -> forstat
+    self:forstat(ls, line)
+    return false
+  elseif c == "TK_REPEAT" then  -- stat -> repeatstat
+    self:repeatstat(ls, line)
+    return false
+  elseif c == "TK_FUNCTION" then  -- stat -> funcstat
+    self:funcstat(ls, line)
+    return false
+  elseif c == "TK_LOCAL" then  -- stat -> localstat
+    luaX:next(ls)  -- skip LOCAL
+    if self:testnext(ls, "TK_FUNCTION") then  -- local function?
+      self:localfunc(ls)
+    else
+      self:localstat(ls)
+    end
+    return false
+  elseif c == "TK_RETURN" then  -- stat -> retstat
+    self:retstat(ls)
+    return true  -- must be last statement
+  elseif c == "TK_BREAK" then  -- stat -> breakstat
+    luaX:next(ls)  -- skip BREAK
+    self:breakstat(ls)
+    return true  -- must be last statement
+  else
+    self:exprstat(ls)
+    return false  -- to avoid warnings
+  end--if c
+end
+
+------------------------------------------------------------------------
+-- parse a chunk, which consists of a bunch of statements
+-- * used in parser(), body(), block(), repeatstat()
+------------------------------------------------------------------------
+function luaY:chunk(ls)
+  -- chunk -> { stat [';'] }
+  local islast = false
+  self:enterlevel(ls)
+  while not islast and not self:block_follow(ls.t.token) do
+    islast = self:statement(ls)
+    self:testnext(ls, ";")
+    lua_assert(ls.fs.f.maxstacksize >= ls.fs.freereg and
+               ls.fs.freereg >= ls.fs.nactvar)
+    ls.fs.freereg = ls.fs.nactvar  -- free registers
+  end
+  self:leavelevel(ls)
+end
+
+-- }======================================================================
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/luac.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/luac.lua
new file mode 100644
index 0000000..5f12f79
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/luac.lua
@@ -0,0 +1,71 @@
+--[[--------------------------------------------------------------------
+
+  luac.lua
+  Primitive luac in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2007 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * based on luac.lua in the test directory of the 5.1.2 distribution
+-- * usage: lua luac.lua file.lua
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- load and initialize the required modules
+------------------------------------------------------------------------
+dofile("lzio.lua")
+dofile("llex.lua")
+dofile("lopcodes.lua")
+dofile("ldump.lua")
+dofile("lcode.lua")
+dofile("lparser.lua")
+
+luaX:init()  -- required by llex
+local LuaState = {}  -- dummy, not actually used, but retained since
+                     -- the intention is to complete a straight port
+
+------------------------------------------------------------------------
+-- interfacing to yueliang
+------------------------------------------------------------------------
+
+-- currently asserts are enabled because the codebase hasn't been tested
+-- much (if you don't want asserts, just comment them out)
+function lua_assert(test)
+  if not test then error("assertion failed!") end
+end
+
+function yloadfile(filename)
+  -- luaZ:make_getF returns a file chunk reader
+  -- luaZ:init returns a zio input stream
+  local zio = luaZ:init(luaZ:make_getF(filename), nil)
+  if not zio then return end
+  -- luaY:parser parses the input stream
+  -- func is the function prototype in tabular form; in C, func can
+  -- now be used directly by the VM, this can't be done in Lua
+  local func = luaY:parser(LuaState, zio, nil, "@"..filename)
+  -- luaU:make_setS returns a string chunk writer
+  local writer, buff = luaU:make_setS()
+  -- luaU:dump builds a binary chunk
+  luaU:dump(LuaState, func, writer, buff)
+  -- a string.dump equivalent in returned
+  return buff.data
+end
+
+------------------------------------------------------------------------
+-- command line interface
+------------------------------------------------------------------------
+
+assert(arg[1] ~= nil and arg[2] == nil, "usage: lua luac.lua file.lua")
+local f = assert(io.open("luac.out","wb"))
+assert(f:write(assert(yloadfile(arg[1]))))
+assert(io.close(f))
+
+--end
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/lzio.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/lzio.lua
new file mode 100644
index 0000000..b5ea985
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/lzio.lua
@@ -0,0 +1,125 @@
+--[[--------------------------------------------------------------------
+
+  lzio.lua
+  Lua buffered streams in Lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * EOZ is implemented as a string, "EOZ"
+-- * Format of z structure (ZIO)
+--     z.n       -- bytes still unread
+--     z.p       -- last read position position in buffer
+--     z.reader  -- chunk reader function
+--     z.data    -- additional data
+-- * Current position, p, is now last read index instead of a pointer
+--
+-- Not implemented:
+-- * luaZ_lookahead: used only in lapi.c:lua_load to detect binary chunk
+-- * luaZ_read: used only in lundump.c:ezread to read +1 bytes
+-- * luaZ_openspace: dropped; let Lua handle buffers as strings (used in
+--   lundump.c:LoadString & lvm.c:luaV_concat)
+-- * luaZ buffer macros: dropped; buffers are handled as strings
+-- * lauxlib.c:getF reader implementation has an extraline flag to
+--   skip over a shbang (#!) line, this is not implemented here
+--
+-- Added:
+-- (both of the following are vaguely adapted from lauxlib.c)
+-- * luaZ:make_getS: create Reader from a string
+-- * luaZ:make_getF: create Reader that reads from a file
+--
+-- Changed in 5.1.x:
+-- * Chunkreader renamed to Reader (ditto with Chunkwriter)
+-- * Zio struct: no more name string, added Lua state for reader
+--   (however, Yueliang readers do not require a Lua state)
+----------------------------------------------------------------------]]
+
+luaZ = {}
+
+------------------------------------------------------------------------
+-- * reader() should return a string, or nil if nothing else to parse.
+--   Additional data can be set only during stream initialization
+-- * Readers are handled in lauxlib.c, see luaL_load(file|buffer|string)
+-- * LUAL_BUFFERSIZE=BUFSIZ=512 in make_getF() (located in luaconf.h)
+-- * Original Reader typedef:
+--   const char * (*lua_Reader) (lua_State *L, void *ud, size_t *sz);
+-- * This Lua chunk reader implementation:
+--   returns string or nil, no arguments to function
+------------------------------------------------------------------------
+
+------------------------------------------------------------------------
+-- create a chunk reader from a source string
+------------------------------------------------------------------------
+function luaZ:make_getS(buff)
+  local b = buff
+  return function() -- chunk reader anonymous function here
+    if not b then return nil end
+    local data = b
+    b = nil
+    return data
+  end
+end
+
+------------------------------------------------------------------------
+-- create a chunk reader from a source file
+------------------------------------------------------------------------
+function luaZ:make_getF(filename)
+  local LUAL_BUFFERSIZE = 512
+  local h = io.open(filename, "r")
+  if not h then return nil end
+  return function() -- chunk reader anonymous function here
+    if not h or io.type(h) == "closed file" then return nil end
+    local buff = h:read(LUAL_BUFFERSIZE)
+    if not buff then h:close(); h = nil end
+    return buff
+  end
+end
+
+------------------------------------------------------------------------
+-- creates a zio input stream
+-- returns the ZIO structure, z
+------------------------------------------------------------------------
+function luaZ:init(reader, data)
+  if not reader then return end
+  local z = {}
+  z.reader = reader
+  z.data = data or ""
+  z.name = name
+  -- set up additional data for reading
+  if not data or data == "" then z.n = 0 else z.n = #data end
+  z.p = 0
+  return z
+end
+
+------------------------------------------------------------------------
+-- fill up input buffer
+------------------------------------------------------------------------
+function luaZ:fill(z)
+  local buff = z.reader()
+  z.data = buff
+  if not buff or buff == "" then return "EOZ" end
+  z.n, z.p = #buff - 1, 1
+  return string.sub(buff, 1, 1)
+end
+
+------------------------------------------------------------------------
+-- get next character from the input stream
+-- * local n, p are used to optimize code generation
+------------------------------------------------------------------------
+function luaZ:zgetc(z)
+  local n, p = z.n, z.p + 1
+  if n > 0 then
+    z.n, z.p = n - 1, p
+    return string.sub(z.data, p, p)
+  else
+    return self:fill(z)
+  end
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/bench_llex.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/bench_llex.lua
new file mode 100644
index 0000000..b904470
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/bench_llex.lua
@@ -0,0 +1,99 @@
+--[[--------------------------------------------------------------------
+
+  bench_llex.lua
+  Benchmark test for llex.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+dofile("../lzio.lua")
+dofile("../llex.lua")
+luaX:init()
+
+------------------------------------------------------------------------
+-- load in a standard set of sample files
+-- * file set is 5.0.3 front end set sans luac.lua
+------------------------------------------------------------------------
+
+local fileset, totalsize = {}, 0
+for fn in string.gmatch([[
+../../orig-5.0.3/lcode.lua
+../../orig-5.0.3/ldump.lua
+../../orig-5.0.3/llex.lua
+../../orig-5.0.3/lopcodes.lua
+../../orig-5.0.3/lparser.lua
+../../orig-5.0.3/lzio.lua
+]], "%S+") do
+  fileset[#fileset+1] = fn
+end
+
+for i = 1, #fileset do
+  local fn = fileset[i]
+  local inf = io.open(fn, "rb")
+  if not inf then
+    error("failed to open "..fn.." for reading")
+  end
+  local data = inf:read("*a")
+  local data_sz = #data
+  inf:close()
+  if not data or data_sz == 0 then
+    error("failed to read data from "..fn.." or file is zero-length")
+  end
+  totalsize = totalsize + data_sz
+  fileset[i] = data
+end
+
+------------------------------------------------------------------------
+-- benchmark tester
+------------------------------------------------------------------------
+
+local DURATION = 5      -- how long the benchmark should run
+
+local L = {} -- LuaState
+local LS = {} -- LexState
+
+local time = os.time
+local lexedsize = 0
+local tnow, elapsed = time(), 0
+
+while time() == tnow do end    -- wait for second to click over
+tnow = time()
+
+while true do
+  for i = 1, #fileset do
+    ------------------------------------------------------------
+    local chunk = fileset[i]
+    local z = luaZ:init(luaZ:make_getS(chunk), nil)
+    luaX:setinput(L, LS, z, "=string")
+    while true do
+      LS.t.token = luaX:llex(LS, LS.t)
+      local tok, seminfo = LS.t.token, LS.t.seminfo
+      if tok == "TK_EOS" then break end
+    end
+    ------------------------------------------------------------
+    lexedsize = lexedsize + #chunk
+    if time() > tnow then
+      tnow = time()
+      elapsed = elapsed + 1
+      if elapsed >= DURATION then
+        -- report performance of lexer
+        lexedsize = lexedsize / 1024
+        local speed = lexedsize / DURATION
+        print("Lexer performance:")
+        print("Size of data lexed (KB): "..string.format("%.1f", lexedsize))
+        print("Speed of lexer (KB/s): "..string.format("%.1f", speed))
+        -- repeat until user breaks program
+        elapsed = 0
+      end
+    end
+    ------------------------------------------------------------
+  end--for
+end--while
+
+-- end of script
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/sample.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/sample.lua
new file mode 100644
index 0000000..dc6eaee
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/sample.lua
@@ -0,0 +1,3 @@
+local a = 47
+local b = "hello, world!"
+print(a, b)
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/test_ldump.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/test_ldump.lua
new file mode 100644
index 0000000..2d113dd
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/test_ldump.lua
@@ -0,0 +1,99 @@
+--[[--------------------------------------------------------------------
+
+  test_ldump.lua
+  Test for ldump.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- test dump chunkwriter style
+------------------------------------------------------------------------
+
+dofile("../lopcodes.lua")
+dofile("../ldump.lua")
+
+-- Original typedef:
+--int (*lua_Chunkwriter) (lua_State *L, const void* p, size_t sz, void* ud);
+
+local MyWriter, MyBuff = luaU:make_setS()
+if not MyWriter then
+  error("failed to initialize using make_setS")
+end
+MyWriter("hello, ", MyBuff)
+MyWriter("world!", MyBuff)
+print(MyBuff.data)
+
+local MyWriter, MyBuff = luaU:make_setF("try.txt")
+if not MyWriter then
+  error("failed to initialize using make_setF")
+end
+MyWriter("hello, ", MyBuff)
+MyWriter("world!", MyBuff)
+MyWriter(nil, MyBuff)
+
+------------------------------------------------------------------------
+-- test output of a function prototype
+-- * data can be copied from a ChunkSpy listing output
+------------------------------------------------------------------------
+--   local a = 47
+--   local b = "hello, world!"
+--   print(a, b)
+------------------------------------------------------------------------
+
+local F = {}
+F.source = "sample.lua"
+F.lineDefined = 0
+F.lastlinedefined = 0
+F.nups = 0
+F.numparams = 0
+F.is_vararg = 2
+F.maxstacksize = 5
+F.sizecode = 7
+F.code = {}
+F.code[0] = { OP =  1, A = 0, Bx = 0 }
+F.code[1] = { OP =  1, A = 1, Bx = 1 }
+F.code[2] = { OP =  5, A = 2, Bx = 2 }
+F.code[3] = { OP =  0, A = 3, B = 0, C = 0 }
+F.code[4] = { OP =  0, A = 4, B = 1, C = 0 }
+F.code[5] = { OP = 28, A = 2, B = 3, C = 1 }
+F.code[6] = { OP = 30, A = 0, B = 1, C = 0 }
+F.sizek = 3
+F.k = {}
+F.k[0] = { value = 47 }
+F.k[1] = { value = "hello, world!" }
+F.k[2] = { value = "print" }
+F.sizep = 0
+F.p = {}
+F.sizelineinfo = 7
+F.lineinfo = {}
+F.lineinfo[0] = 1
+F.lineinfo[1] = 2
+F.lineinfo[2] = 3
+F.lineinfo[3] = 3
+F.lineinfo[4] = 3
+F.lineinfo[5] = 3
+F.lineinfo[6] = 3

+F.sizelocvars = 2
+F.locvars = {}
+F.locvars[0] = { varname = "a", startpc = 1, endpc = 6 }
+F.locvars[1] = { varname = "b", startpc = 2, endpc = 6 }
+F.sizeupvalues = 0
+F.upvalues = {}
+
+local L = {}
+--[[
+local Writer, Buff = luaU:make_setS()
+luaU:dump(L, F, Writer, Buff)
+for i = 1, string.len(Buff.data) do
+  io.stdout:write(string.byte(string.sub(Buff.data, i, i)).." ")
+end
+--]]
+local Writer, Buff = luaU:make_setF("try.out")
+luaU:dump(L, F, Writer, Buff)
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/test_llex.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/test_llex.lua
new file mode 100644
index 0000000..0548476
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/test_llex.lua
@@ -0,0 +1,580 @@
+--[[--------------------------------------------------------------------
+
+  test_llex.lua
+  Test for llex.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- if BRIEF is not set to false, auto-test will silently succeed
+------------------------------------------------------------------------
+BRIEF = true  -- if set to true, messages are less verbose
+
+dofile("../lzio.lua")
+dofile("../llex.lua")
+luaX:init()
+
+------------------------------------------------------------------------
+-- simple manual tests
+------------------------------------------------------------------------
+
+--[[
+local L = {} -- LuaState
+local LS = {} -- LexState
+
+local function dump(z)
+  luaX:setinput(L, LS, z, z.name)
+  while true do
+    LS.t.token = luaX:lex(LS, LS.t)
+    local tok, seminfo = LS.t.token, LS.t.seminfo
+    if tok == "TK_NAME" then
+      seminfo = " "..seminfo
+    elseif tok == "TK_NUMBER" then
+      seminfo = " "..seminfo
+    elseif tok == "TK_STRING" then
+      seminfo = " '"..seminfo.."'"
+    else
+      seminfo = ""
+    end
+    io.stdout:write(tok..seminfo.."\n")
+    if tok == "TK_EOS" then break end
+  end
+end
+
+local function try_string(chunk)
+  dump(luaZ:init(luaZ:make_getS(chunk), nil, "=string"))
+end
+local function try_file(filename)
+  dump(luaZ:init(luaZ:make_getF(filename), nil, filename))
+end
+
+z = try_string("local c = luaZ:zgetc(z)")
+z = try_file("test_lzio.lua")
+z = try_file("test_llex.lua")
+os.exit()
+--]]
+
+------------------------------------------------------------------------
+-- auto-testing of simple test cases to validate lexer behaviour:
+-- * NOTE coverage has not been checked; not comprehensive
+-- * only test cases with non-empty comments are processed
+-- * if no result, then the output is displayed for manual decision
+--   (output may be used to set expected success or fail text)
+-- * cases expected to be successful may be a partial match
+-- * cases expected to fail may also be a partial match
+------------------------------------------------------------------------
+
+-- [[
+local function auto_test()
+  local PASS, FAIL = true, false
+  ------------------------------------------------------------------
+  -- table of test cases
+  ------------------------------------------------------------------
+  local test_cases =
+  {
+    -------------------------------------------------------------
+  --{ "comment",  -- comment about the test
+  --  "chunk",    -- chunk to test
+  --  PASS,       -- PASS or FAIL outcome
+  --  "output",   -- output to compare against
+  --},
+    -------------------------------------------------------------
+    { "empty chunk string, test EOS",
+      "",
+      PASS, "1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "line number counting",
+      "\n\n\r\n",
+      PASS, "4 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "various whitespaces",
+      "  \n\t\t\n  \t  \t \n\n",
+      PASS, "5 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "short comment ending in EOS",
+      "-- moo moo",
+      PASS, "1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "short comment ending in newline",
+      "-- moo moo\n",
+      PASS, "2 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "several lines of short comments",
+      "--moo\n-- moo moo\n\n--\tmoo\n",
+      PASS, "5 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "basic block comment 1",
+      "--[[bovine]]",
+      PASS, "1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "basic block comment 2",
+      "--[=[bovine]=]",
+      PASS, "1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "basic block comment 3",
+      "--[====[-[[bovine]]-]====]",
+      PASS, "1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 1",
+      "--[[bovine",
+      FAIL, ":1: unfinished long comment near '<eof>'",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 2",
+      "--[==[bovine",
+      FAIL, ":1: unfinished long comment near '<eof>'",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 3",
+      "--[[bovine]",
+      FAIL, ":1: unfinished long comment near '<eof>'",
+    },
+    -------------------------------------------------------------
+    { "unterminated block comment 4",
+      "--[[bovine\nmoo moo\nwoof",
+      FAIL, ":3: unfinished long comment near '<eof>'",
+    },
+    -------------------------------------------------------------
+    { "basic long string 1",
+      "\n[[bovine]]\n",
+      PASS, "2 TK_STRING = bovine\n3 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "basic long string 2",
+      "\n[=[bovine]=]\n",
+      PASS, "2 TK_STRING = bovine\n3 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "first newline consumed in long string",
+      "[[\nmoo]]",
+      PASS, "2 TK_STRING = moo\n2 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "multiline long string 1",
+      "[[moo\nmoo moo\n]]",
+      PASS, "3 TK_STRING = moo\nmoo moo\n\n3 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "multiline long string 2",
+      "[===[moo\n[=[moo moo]=]\n]===]",
+      PASS, "3 TK_STRING = moo\n[=[moo moo]=]\n\n3 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "unterminated long string 1",
+      "\n[[\nbovine",
+      FAIL, ":3: unfinished long string near '<eof>'",
+    },
+    -------------------------------------------------------------
+    { "unterminated long string 2",
+      "[[bovine]",
+      FAIL, ":1: unfinished long string near '<eof>'",
+    },
+    -------------------------------------------------------------
+    { "unterminated long string 2",
+      "[==[bovine]==",
+      FAIL, ":1: unfinished long string near '<eof>'",
+    },
+    -------------------------------------------------------------
+    { "complex long string 1",
+      "[=[moo[[moo]]moo]=]",
+      PASS, "moo[[moo]]moo",
+    },
+    -------------------------------------------------------------
+    { "complex long string 2",
+      "[=[moo[[moo[[[[]]]]moo]]moo]=]",
+      PASS, "moo[[moo[[[[]]]]moo]]moo",
+    },
+    -------------------------------------------------------------
+    { "complex long string 3",
+      "[=[[[[[]]]][[[[]]]]]=]",
+      PASS, "[[[[]]]][[[[]]]]",
+    },
+    -------------------------------------------------------------
+    { "deprecated long string 1",
+      "[[moo[[moo]]moo]]",
+      FAIL, ":1: nesting of [[...]] is deprecated near '['",
+    },
+    -------------------------------------------------------------
+    { "deprecated long string 2",
+      "[[[[ \n",
+      FAIL, ":1: nesting of [[...]] is deprecated near '['",
+    },
+    -------------------------------------------------------------
+    { "deprecated long string 3",
+      "[[moo[[moo[[[[]]]]moo]]moo]]",
+      FAIL, ":1: nesting of [[...]] is deprecated near '['",
+    },
+    -------------------------------------------------------------
+    { "deprecated long string 4",
+      "[[[[[[]]]][[[[]]]]]]",
+      FAIL, ":1: nesting of [[...]] is deprecated near '['",
+    },
+    -------------------------------------------------------------
+    { "brackets in long strings 1",
+      "[[moo[moo]]",
+      PASS, "moo[moo",
+    },
+    -------------------------------------------------------------
+    { "brackets in long strings 2",
+      "[=[moo[[moo]moo]]moo]=]",
+      PASS, "moo[[moo]moo]]moo",
+    },
+    -------------------------------------------------------------
+    { "unprocessed escapes in long strings",
+      [[ [=[\a\b\f\n\r\t\v\123]=] ]],
+      PASS, [[\a\b\f\n\r\t\v\123]],
+    },
+    -------------------------------------------------------------
+    { "unbalanced long string",
+      "[[moo]]moo]]",
+      PASS, "1 TK_STRING = moo\n1 TK_NAME = moo\n1 CHAR = ']'\n1 CHAR = ']'\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "keywords 1",
+      "and break do else",
+      PASS, "1 TK_AND\n1 TK_BREAK\n1 TK_DO\n1 TK_ELSE\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "keywords 2",
+      "elseif end false for",
+      PASS, "1 TK_ELSEIF\n1 TK_END\n1 TK_FALSE\n1 TK_FOR\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "keywords 3",
+      "function if in local nil",
+      PASS, "1 TK_FUNCTION\n1 TK_IF\n1 TK_IN\n1 TK_LOCAL\n1 TK_NIL\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "keywords 4",
+      "not or repeat return",
+      PASS, "1 TK_NOT\n1 TK_OR\n1 TK_REPEAT\n1 TK_RETURN\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "keywords 5",
+      "then true until while",
+      PASS, "1 TK_THEN\n1 TK_TRUE\n1 TK_UNTIL\n1 TK_WHILE\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "concat and dots",
+      ".. ...",
+      PASS, "1 TK_CONCAT\n1 TK_DOTS\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    -- NOTE: in Lua 5.1.x, shbang handling is no longer performed
+    -- in the lexer; it is now done in lauxlib.c (luaL_loadfile)
+    -- so the following cannot be performed by the lexer...
+    -------------------------------------------------------------
+  --{ "shbang handling 1",
+  --  "#blahblah",
+  --  PASS, "1 TK_EOS",
+  --},
+    -------------------------------------------------------------
+  --{ "shbang handling 2",
+  --  "#blahblah\nmoo moo\n",
+  --  PASS, "2 TK_NAME = moo\n2 TK_NAME = moo\n3 TK_EOS",
+  --},
+    -------------------------------------------------------------
+    { "empty string",
+      [['']],
+      PASS, "1 TK_STRING = \n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "single-quoted string",
+      [['bovine']],
+      PASS, "1 TK_STRING = bovine\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "double-quoted string",
+      [["bovine"]],
+      PASS, "1 TK_STRING = bovine\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "unterminated string 1",
+      [['moo ]],
+      FAIL, ":1: unfinished string near '<eof>'",
+    },
+    -------------------------------------------------------------
+    { "unterminated string 2",
+      [["moo \n]],
+      FAIL, ":1: unfinished string near '<eof>'",
+    },
+    -------------------------------------------------------------
+    { "escaped newline in string, line number counted",
+      "\"moo\\\nmoo\\\nmoo\"",
+      PASS, "3 TK_STRING = moo\nmoo\nmoo\n3 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 1",
+      [["moo\amoo"]],
+      PASS, "1 TK_STRING = moo\amoo",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 2",
+      [["moo\bmoo"]],
+      PASS, "1 TK_STRING = moo\bmoo",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 3",
+      [["moo\f\n\r\t\vmoo"]],
+      PASS, "1 TK_STRING = moo\f\n\r\t\vmoo",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 4",
+      [["\\ \" \' \? \[ \]"]],
+      PASS, "1 TK_STRING = \\ \" \' \? \[ \]",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 5",
+      [["\z \k \: \;"]],
+      PASS, "1 TK_STRING = z k : ;",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 6",
+      [["\8 \65 \160 \180K \097097"]],
+      PASS, "1 TK_STRING = \8 \65 \160 \180K \097097\n",
+    },
+    -------------------------------------------------------------
+    { "escaped characters in string 7",
+      [["\666"]],
+      FAIL, ":1: escape sequence too large near '\"'",
+    },
+    -------------------------------------------------------------
+    { "simple numbers",
+      "123 123+",
+      PASS, "1 TK_NUMBER = 123\n1 TK_NUMBER = 123\n1 CHAR = '+'\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "longer numbers",
+      "1234567890 12345678901234567890",
+      PASS, "1 TK_NUMBER = 1234567890\n1 TK_NUMBER = 1.2345678901235e+19\n",
+    },
+    -------------------------------------------------------------
+    { "fractional numbers",
+      ".123 .12345678901234567890",
+      PASS, "1 TK_NUMBER = 0.123\n1 TK_NUMBER = 0.12345678901235\n",
+    },
+    -------------------------------------------------------------
+    { "more numbers with decimal points",
+      "12345.67890",
+      PASS, "1 TK_NUMBER = 12345.6789\n",
+    },
+    -------------------------------------------------------------
+    { "malformed number with decimal points",
+      "1.1.",
+      FAIL, ":1: malformed number near '1.1.'",
+    },
+    -------------------------------------------------------------
+    { "double decimal points",
+      ".1.1",
+      FAIL, ":1: malformed number near '.1.1'",
+    },
+    -------------------------------------------------------------
+    { "double dots within numbers",
+      "1..1",
+      FAIL, ":1: malformed number near '1..1'",
+    },
+    -------------------------------------------------------------
+    { "incomplete exponential numbers",
+      "123e",
+      FAIL, ":1: malformed number near '123e'",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 1",
+      "1234e5 1234e5.",
+      PASS, "1 TK_NUMBER = 123400000\n1 TK_NUMBER = 123400000\n1 CHAR = '.'",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 2",
+      "1234e56 1.23e123",
+      PASS, "1 TK_NUMBER = 1.234e+59\n1 TK_NUMBER = 1.23e+123\n",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 3",
+      "12.34e+",
+      FAIL, ":1: malformed number near '12.34e+'",
+    },
+    -------------------------------------------------------------
+    { "exponential numbers 4",
+      "12.34e+5 123.4e-5 1234.E+5",
+      PASS, "1 TK_NUMBER = 1234000\n1 TK_NUMBER = 0.001234\n1 TK_NUMBER = 123400000\n",
+    },
+    -------------------------------------------------------------
+    { "hexadecimal numbers",
+      "0x00FF 0X1234 0xDEADBEEF",
+      PASS, "1 TK_NUMBER = 255\n1 TK_NUMBER = 4660\n1 TK_NUMBER = 3735928559\n",
+    },
+    -------------------------------------------------------------
+    { "invalid hexadecimal numbers 1",
+      "0xFOO",
+      FAIL, ":1: malformed number near '0xFOO'",
+    },
+    -------------------------------------------------------------
+    { "invalid hexadecimal numbers 2",
+      "0.BAR",
+      FAIL, ":1: malformed number near '0.BAR'",
+    },
+    -------------------------------------------------------------
+    { "invalid hexadecimal numbers 3",
+      "0BAZ",
+      FAIL, ":1: malformed number near '0BAZ'",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 1",
+      "= > < ~ #",
+      PASS, "1 CHAR = '='\n1 CHAR = '>'\n1 CHAR = '<'\n1 CHAR = '~'\n1 CHAR = '#'\n",
+    },
+    -------------------------------------------------------------
+    { "double character symbols",
+      "== >= <= ~=",
+      PASS, "1 TK_EQ\n1 TK_GE\n1 TK_LE\n1 TK_NE\n",
+    },
+    -------------------------------------------------------------
+    { "simple identifiers",
+      "abc ABC",
+      PASS, "1 TK_NAME = abc\n1 TK_NAME = ABC\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "more identifiers",
+      "_abc _ABC",
+      PASS, "1 TK_NAME = _abc\n1 TK_NAME = _ABC\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    { "still more identifiers",
+      "_aB_ _123",
+      PASS, "1 TK_NAME = _aB_\n1 TK_NAME = _123\n1 TK_EOS",
+    },
+    -------------------------------------------------------------
+    -- NOTE: in Lua 5.1.x, this test is no longer performed
+    -------------------------------------------------------------
+  --{ "invalid control character",
+  --  "\4",
+  --  FAIL, ":1: invalid control char near 'char(4)'",
+  --},
+    -------------------------------------------------------------
+    { "single character symbols 2",
+      "` ! @ $ %",
+      PASS, "1 CHAR = '`'\n1 CHAR = '!'\n1 CHAR = '@'\n1 CHAR = '$'\n1 CHAR = '%'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 3",
+      "^ & * ( )",
+      PASS, "1 CHAR = '^'\n1 CHAR = '&'\n1 CHAR = '*'\n1 CHAR = '('\n1 CHAR = ')'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 4",
+      "_ - + \\ |",
+      PASS, "1 TK_NAME = _\n1 CHAR = '-'\n1 CHAR = '+'\n1 CHAR = '\\'\n1 CHAR = '|'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 5",
+      "{ } [ ] :",
+      PASS, "1 CHAR = '{'\n1 CHAR = '}'\n1 CHAR = '['\n1 CHAR = ']'\n1 CHAR = ':'\n",
+    },
+    -------------------------------------------------------------
+    { "single character symbols 6",
+      "; , . / ?",
+      PASS, "1 CHAR = ';'\n1 CHAR = ','\n1 CHAR = '.'\n1 CHAR = '/'\n1 CHAR = '?'\n",
+    },
+    -------------------------------------------------------------
+  }
+  ------------------------------------------------------------------
+  -- perform a test case
+  ------------------------------------------------------------------
+  function do_test_case(count, test_case)
+    if comment == "" then return end  -- skip empty entries
+    local comment, chunk, outcome, matcher = unpack(test_case)
+    local result = PASS
+    local output = ""
+    -- initialize lexer
+    local L, LS  = {}, {}
+    local z = luaZ:init(luaZ:make_getS(chunk), nil)
+    luaX:setinput(L, LS, z, "=test")
+    -- lexer test loop
+    repeat
+      -- protected call
+      local status, token = pcall(luaX.llex, luaX, LS, LS.t)
+      LS.t.token = token
+      output = output..LS.linenumber.." "
+      if status then
+        -- successful call
+        if string.len(token) > 1 then
+          if token == "TK_NAME"
+             or token == "TK_NUMBER"
+             or token == "TK_STRING" then
+            token = token.." = "..LS.t.seminfo
+          end
+        elseif string.byte(token) >= 32 then  -- displayable chars
+          token = "CHAR = '"..token.."'"
+        else  -- control characters
+          token = "CHAR = (".. string.byte(token)..")"
+        end
+        output = output..token.."\n"
+      else
+        -- failed call
+        output = output..token  -- token is the error message
+        result = FAIL
+        break
+      end
+    until LS.t.token == "TK_EOS"
+    -- decision making and reporting
+    local head = "Test "..count..": "..comment
+    if matcher == "" then
+      -- nothing to check against, display for manual check
+      print(head.."\nMANUAL please check manually"..
+            "\n--chunk---------------------------------\n"..chunk..
+            "\n--actual--------------------------------\n"..output..
+            "\n\n")
+      return
+    else
+      if outcome == PASS then
+        -- success expected, may be a partial match
+        if string.find(output, matcher, 1, 1) and result == PASS then
+          if not BRIEF then print(head.."\nOK expected success\n") end
+          return
+        end
+      else
+        -- failure expected, may be a partial match
+        if string.find(output, matcher, 1, 1) and result == FAIL then
+          if not BRIEF then print(head.."\nOK expected failure\n") end
+          return
+        end
+      end
+      -- failed because of unmatched string or boolean result
+      local function passfail(status)
+        if status == PASS then return "PASS" else return "FAIL" end
+      end
+      print(head.." *FAILED*"..
+            "\noutcome="..passfail(outcome)..
+            "\nactual= "..passfail(result)..
+            "\n--chunk---------------------------------\n"..chunk..
+            "\n--expected------------------------------\n"..matcher..
+            "\n--actual--------------------------------\n"..output..
+            "\n\n")
+    end
+  end
+  ------------------------------------------------------------------
+  -- perform auto testing
+  ------------------------------------------------------------------
+  for i,test_case in ipairs(test_cases) do
+    do_test_case(i, test_case)
+  end
+end
+
+auto_test()
+--]]
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/test_lparser.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/test_lparser.lua
new file mode 100644
index 0000000..8c7abf4
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/test_lparser.lua
@@ -0,0 +1,59 @@
+--[[--------------------------------------------------------------------
+
+  test_lparser.lua
+  Test for lparser.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- test the whole kaboodle
+------------------------------------------------------------------------
+
+dofile("../lzio.lua")
+dofile("../llex.lua")
+dofile("../lopcodes.lua")
+dofile("../ldump.lua")
+dofile("../lcode.lua")
+dofile("../lparser.lua")
+
+function lua_assert(test)
+  if not test then error("assertion failed!") end
+end
+
+luaX:init()
+
+------------------------------------------------------------------------
+-- try 1
+------------------------------------------------------------------------
+local zio = luaZ:init(luaZ:make_getS("local a = 1"), nil)
+local LuaState = {}
+local Func = luaY:parser(LuaState, zio, nil, "=string")
+
+--[[
+for i, v in Func do
+  if type(v) == "string" or type(v) == "number" then
+    print(i, v)
+  elseif type(v) == "table" then
+    print(i, "TABLE")
+  end
+end
+--]]
+
+local Writer, Buff = luaU:make_setF("parse1.out")
+luaU:dump(LuaState, Func, Writer, Buff)
+
+------------------------------------------------------------------------
+-- try 2
+------------------------------------------------------------------------
+
+zio = luaZ:init(luaZ:make_getF("sample.lua"), nil)
+Func = luaY:parser(LuaState, zio, nil, "@sample.lua")
+Writer, Buff = luaU:make_setF("parse2.out")
+luaU:dump(LuaState, Func, Writer, Buff)
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/test_lparser2.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/test_lparser2.lua
new file mode 100644
index 0000000..e9fa188
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/test_lparser2.lua
@@ -0,0 +1,202 @@
+--[[--------------------------------------------------------------------
+
+  test_lparser2.lua
+  Test for lparser.lua, using the test case file
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * the test cases are in the test_lua directory (test_parser-5.1.lua)
+----------------------------------------------------------------------]]
+
+-- * true if you want an output of all failure cases in native Lua,
+--   for checking whether test cases fail where you intend them to
+local DEBUG_FAILS = false
+
+------------------------------------------------------------------------
+-- test the whole kaboodle
+------------------------------------------------------------------------
+
+dofile("../lzio.lua")
+dofile("../llex.lua")
+dofile("../lopcodes.lua")
+dofile("../ldump.lua")
+dofile("../lcode.lua")
+dofile("../lparser.lua")
+
+function lua_assert(test)
+  if not test then error("assertion failed!") end
+end
+
+luaX:init()
+
+------------------------------------------------------------------------
+-- load test cases
+------------------------------------------------------------------------
+
+dofile("../../test_lua/test_parser-5.1.lua")
+
+local test, expect, heading = {}, {}, {}
+local total, total_pass, total_fail = 0, 0, 0
+
+for ln in string.gmatch(tests_source, "([^\n]*)\n") do
+  if string.find(ln, "^%s*%-%-") then
+    -- comment, ignore
+  else
+    local m, _, head = string.find(ln, "^%s*(TESTS:%s*.*)$")
+    if m then
+      heading[total + 1] = head         -- informational heading
+    else
+      total = total + 1
+      local n, _, flag = string.find(ln, "%s*%-%-%s*FAIL%s*$")
+      if n then                         -- FAIL test case
+        ln = string.sub(ln, 1, n - 1)   -- remove comment
+        expect[total] = "FAIL"
+        total_fail = total_fail + 1
+      else                              -- PASS test case
+        expect[total] = "PASS"
+        total_pass = total_pass + 1
+      end--n
+      test[total] = ln
+    end--m
+  end--ln
+end--for
+
+print("Tests loaded: "..total.." (total), "
+                      ..total_pass.." (passes), "
+                      ..total_fail.." (fails)")
+
+------------------------------------------------------------------------
+-- verify test cases using native Lua
+------------------------------------------------------------------------
+
+local last_head = "TESTS: no heading yet"
+for i = 1, total do
+  local test_case, expected, head = test[i], expect[i], heading[i]
+  -- show progress
+  if head then
+    last_head = head
+    if DEBUG_FAILS then print("\n"..head.."\n") end
+  end
+  ------------------------------------------------------------------
+  -- perform test
+  local f, err = loadstring(test_case)
+  -- look at outcome
+  ------------------------------------------------------------------
+  if f then-- actual PASS
+    if expected == "FAIL" then
+      print("\nVerified as PASS but expected to FAIL"..
+            "\n-------------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      os.exit()
+    end
+  ------------------------------------------------------------------
+  else-- actual FAIL
+    if expected == "PASS" then
+      print("\nVerified as FAIL but expected to PASS"..
+            "\n-------------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      print("ERROR: "..err)
+      os.exit()
+    end
+    if DEBUG_FAILS then
+      print("TEST: "..test_case)
+      print("ERROR: "..err.."\n")
+    end
+  ------------------------------------------------------------------
+  end--f
+end--for
+
+print("Test cases verified using native Lua, no anomalies.")
+
+------------------------------------------------------------------------
+-- dump binary chunks to a file if something goes wrong
+------------------------------------------------------------------------
+local function Dump(data, filename)
+  h = io.open(filename, "wb")
+  if not h then error("failed to open "..filename.." for writing") end
+  h:write(data)
+  h:close()
+end
+
+------------------------------------------------------------------------
+-- test using Yueliang front end
+------------------------------------------------------------------------
+
+local last_head = "TESTS: no heading yet"
+for i = 1, total do
+  local test_case, expected, head = test[i], expect[i], heading[i]
+  -- show progress
+  if head then last_head = head end
+  ------------------------------------------------------------------
+  -- perform test
+  local LuaState = {}
+  local zio = luaZ:init(luaZ:make_getS(test_case), nil)
+  local status, func = pcall(luaY.parser, luaY, LuaState, zio, nil, "test")
+  -- look at outcome
+  ------------------------------------------------------------------
+  if status then-- actual PASS
+    if expected == "PASS" then
+      -- actual PASS and expected PASS, so check binary chunks
+      local writer, buff = luaU:make_setS()
+      luaU:dump(LuaState, func, writer, buff)
+      local bc1 = buff.data  -- Yueliang's output
+      local f = loadstring(test_case, "test")
+      local bc2 = string.dump(f)  -- Lua's output
+      local die
+      -- compare outputs
+      if #bc1 ~= #bc2 then
+        Dump(bc1, "bc1.out")
+        Dump(bc2, "bc2.out")
+        die = "binary chunk sizes different"
+      elseif bc1 ~= bc2 then
+        Dump(bc1, "bc1.out")
+        Dump(bc2, "bc2.out")
+        die = "binary chunks different"
+      else
+        -- everything checks out!
+      end
+      if die then
+        print("\nTested PASS and expected to PASS, but chunks different"..
+              "\n------------------------------------------------------")
+        print("Reason: "..die)
+        print("Lastest heading: "..last_head)
+        print("TEST: "..test_case)
+        os.exit()
+      end
+    else-- expected FAIL
+      print("\nTested as PASS but expected to FAIL"..
+            "\n-----------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      os.exit()
+    end
+  ------------------------------------------------------------------
+  else-- actual FAIL
+    if expected == "PASS" then
+      print("\nTested as FAIL but expected to PASS"..
+            "\n-----------------------------------")
+      print("Lastest heading: "..last_head)
+      print("TEST: "..test_case)
+      print("ERROR: "..err)
+      os.exit()
+    end
+  ------------------------------------------------------------------
+  end--status
+  io.stdout:write("\rTesting ["..i.."]...")
+end--for
+print(" done.")
+
+print("Test cases run on Yueliang, no anomalies.")
+
+-- end
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/test_lzio.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/test_lzio.lua
new file mode 100644
index 0000000..c3879f1
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/test_lzio.lua
@@ -0,0 +1,41 @@
+--[[--------------------------------------------------------------------
+
+  test_lzio.lua
+  Test for lzio.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+-- manual test for lzio.lua lua-style chunk reader
+
+dofile("../lzio.lua")
+
+local z
+function dump(z)
+  while true do
+    local c = luaZ:zgetc(z)
+    io.stdout:write("("..c..")")
+    if c == "EOZ" then break end
+  end
+  io.stdout:write("\n")
+end
+
+-- luaZ:make_getS or luaZ:make_getF creates a chunk reader
+-- luaZ:init makes a zio stream
+
+-- [[
+z = luaZ:init(luaZ:make_getS("hello, world!"), nil, "=string")
+dump(z)
+z = luaZ:init(luaZ:make_getS(", world!"), "hello", "=string")
+dump(z)
+z = luaZ:init(luaZ:make_getS("line1\nline2\n"), "", "=string")
+dump(z)
+z = luaZ:init(luaZ:make_getF("test_lzio.lua"), nil, "=string")
+dump(z)
+--]]
diff --git a/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/test_number.lua b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/test_number.lua
new file mode 100644
index 0000000..2c94f40
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/orig-5.1.3/test/test_number.lua
@@ -0,0 +1,174 @@
+--[[--------------------------------------------------------------------
+
+  test_number.lua
+  Test for Lua-based number conversion functions in ldump.lua
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * luaU:from_int(value) does not have overflow checks, but this
+--   can presumably be put in for debugging purposes.
+-- * TODO: double conversion does not support denormals or NaNs
+-- * apparently 0/0 == 0/0 is false (Lua 5.0.2 on Win32/Mingw), so
+--   can't use to check for NaNs
+----------------------------------------------------------------------]]
+
+dofile("../ldump.lua")
+
+------------------------------------------------------------------------
+-- convert hex string representation to a byte string
+-- * must have an even number of hex digits
+------------------------------------------------------------------------
+local function from_hexstring(s)
+  local bs = ""
+  for i = 1, string.len(s), 2 do
+    local asc = tonumber(string.sub(s, i, i + 1), 16)
+    bs = bs..string.char(asc)
+  end
+  return bs
+end
+
+------------------------------------------------------------------------
+-- convert a byte string to a hex string representation
+-- * big-endian, easier to grok
+------------------------------------------------------------------------
+local function to_hexstring(s)
+  local hs = ""
+  for i = string.len(s), 1, -1 do
+    local c = string.byte(string.sub(s, i, i))
+    hs = hs..string.format("%02X", c)
+  end
+  return hs
+end
+
+------------------------------------------------------------------------
+-- tests for 32-bit signed/unsigned integer
+------------------------------------------------------------------------
+local function test_int(value, expected)
+  local actual = to_hexstring(luaU:from_int(value))
+  if not expected or expected == "" then
+    print(value..": "..actual)
+  elseif actual ~= expected then
+    print(value..": FAILED!\n"..
+          "Converted: "..actual.."\n"..
+          "Expected:  "..expected)
+    return true
+  end
+  return false
+end
+
+local table_int = {
+  ["0"]           = "00000000",
+  ["1"]           = "00000001",
+  ["256"]         = "00000100",
+  ["-256"]        = "FFFFFF00",
+  ["-1"]          = "FFFFFFFF",
+  ["2147483647"]  = "7FFFFFFF", -- LONG_MAX
+  ["-2147483648"] = "80000000", -- LONG_MIN
+  ["4294967295"]  = "FFFFFFFF", -- ULONG_MAX
+  --[""] = "",
+}
+
+local success = true
+print("Testing luaU:from_int():")
+for i, v in pairs(table_int) do
+  local test_value = tonumber(i)
+  local expected = v
+  if test_int(test_value, expected) then
+    success = false
+  end
+end
+if success then
+  print("All test numbers passed okay.\n")
+else
+  print("There were one or more failures.\n")
+end
+
+------------------------------------------------------------------------
+-- tests for IEEE 754 64-bit double
+------------------------------------------------------------------------
+
+local function test_double(value, expected)
+  local actual = to_hexstring(luaU:from_double(value))
+  if not expected or expected == "" then
+    print(value..": "..actual)
+  elseif actual ~= expected then
+    print(value..": FAILED!\n"..
+          "Converted: "..actual.."\n"..
+          "Expected:  "..expected)
+    return true
+  end
+  return false
+end
+
+-- special values, see testing loop for actual lookup
+Infinity = 1/0
+Infinity_neg = -1/0
+
+-- can't seem to do a comparison test with NaN, so leave them
+-- (need to check the IEEE standard on this...)
+NaN = 0/0
+NaN_neg = -0/0
+--["NaN"] = "", -- 7FF8000000000000 (djgpp)
+--["NaN_neg"] = "", -- FFF8000000000000 (djgpp)
+
+local table_double = {
+  -- 0 for exponent, 0 for mantissa
+  ["0"] = "0000000000000000",
+  -- 3FF is bias of 1023, so (-1)^0 * (1+0) * 2^0
+  ["1"] = "3FF0000000000000",
+  -- BFF has sign bit on, so (-1)^1 * (1+0) * 2^0
+  ["-1"] = "BFF0000000000000",
+  -- 3FC is bias of 1020, so (-1)^0 * (1+0) * 2^-3
+  ["0.125"] = "3FC0000000000000",
+  ["0.250"] = "3FD0000000000000",
+  ["0.500"] = "3FE0000000000000",
+  -- 40F is bias of 1039, so (-1)^0 * (1+0) * 2^16
+  ["65536"] = "40F0000000000000",
+  -- 7FF is bias of 2047, 0 for mantissa
+  ["Infinity"] = "7FF0000000000000",
+  -- FFF has sign bit on, 0 for mantissa
+  ["Infinity_neg"] = "FFF0000000000000",
+  -- DBL_MIN, exponent=001 (   1), mantissa=0000000000000
+  ["2.2250738585072014e-308"] = "0010000000000000",
+  -- DBL_MAX, exponent=7FE (2046), mantissa=FFFFFFFFFFFFF
+  ["1.7976931348623157e+308"] = "7FEFFFFFFFFFFFFF",
+--[[
+  -- * the following is for float numbers only *
+  -- FLT_MIN, exponent=01 (  1), mantissa=000000
+  -- altervative value for FLT_MIN: 1.17549435e-38F
+  ["1.1754943508222875081e-38"] = "00800000",
+  -- FLT_MAX, exponent=FE (254), mantissa=7FFFFF
+  -- altervative value for FLT_MAX: 3.402823466e+38F
+  ["3.4028234663852885982e+38"] = "7F7FFFFF",
+--]]
+  --[""] = "",
+}
+
+local success = true
+print("Testing luaU:from_double():")
+for i, v in pairs(table_double) do
+  local test_value
+  if not string.find(i, "%d") then
+    test_value = _G[i]
+  else
+    test_value = tonumber(i)
+  end
+  local expected = v
+  if test_double(test_value, expected) then
+    success = false
+  end
+end
+if success then
+  print("All test numbers passed okay.\n")
+else
+  print("There were one or more failures.\n")
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/bisect.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/bisect.lua
new file mode 100644
index 0000000..f91e69b
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/bisect.lua
@@ -0,0 +1,27 @@
+-- bisection method for solving non-linear equations
+
+delta=1e-6      -- tolerance
+
+function bisect(f,a,b,fa,fb)
+ local c=(a+b)/2
+ io.write(n," c=",c," a=",a," b=",b,"\n")
+ if c==a or c==b or math.abs(a-b)<delta then return c,b-a end
+ n=n+1
+ local fc=f(c)
+ if fa*fc<0 then return bisect(f,a,c,fa,fc) else return bisect(f,c,b,fc,fb) end
+end
+
+-- find root of f in the inverval [a,b]. needs f(a)*f(b)<0
+function solve(f,a,b)
+ n=0
+ local z,e=bisect(f,a,b,f(a),f(b))
+ io.write(string.format("after %d steps, root is %.17g with error %.1e, f=%.1e\n",n,z,e,f(z)))
+end
+
+-- our function
+function f(x)
+ return x*x*x-x-1
+end
+
+-- find zero in [1,2]
+solve(f,1,2)
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/cf.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/cf.lua
new file mode 100644
index 0000000..8cda54b
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/cf.lua
@@ -0,0 +1,16 @@
+-- temperature conversion table (celsius to farenheit)
+
+for c0=-20,50-1,10 do
+        io.write("C ")
+        for c=c0,c0+10-1 do
+                io.write(string.format("%3.0f ",c))
+        end
+        io.write("\n")
+        
+        io.write("F ")
+        for c=c0,c0+10-1 do
+                f=(9/5)*c+32
+                io.write(string.format("%3.0f ",f))
+        end
+        io.write("\n\n")
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/echo.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/echo.lua
new file mode 100644
index 0000000..4313439
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/echo.lua
@@ -0,0 +1,5 @@
+-- echo command line arguments
+
+for i=0,table.getn(arg) do
+ print(i,arg[i])
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/env.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/env.lua
new file mode 100644
index 0000000..9e62a57
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/env.lua
@@ -0,0 +1,7 @@
+-- read environment variables as if they were global variables
+
+local f=function (t,i) return os.getenv(i) end
+setmetatable(getfenv(),{__index=f})
+
+-- an example
+print(a,USER,PATH)
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/factorial.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/factorial.lua
new file mode 100644
index 0000000..7c4cf0f
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/factorial.lua
@@ -0,0 +1,32 @@
+-- function closures are powerful
+
+-- traditional fixed-point operator from functional programming
+Y = function (g)
+      local a = function (f) return f(f) end
+      return a(function (f)
+                 return g(function (x)
+                             local c=f(f)
+                             return c(x)
+                           end)
+               end)
+end
+
+
+-- factorial without recursion
+F = function (f)
+      return function (n)
+               if n == 0 then return 1
+               else return n*f(n-1) end
+             end
+    end
+
+factorial = Y(F)   -- factorial is the fixed point of F
+
+-- now test it
+function test(x)
+        io.write(x,"! = ",factorial(x),"\n")
+end
+
+for n=0,16 do
+        test(n)
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/fib.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/fib.lua
new file mode 100644
index 0000000..97a921b
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/fib.lua
@@ -0,0 +1,40 @@
+-- fibonacci function with cache
+
+-- very inefficient fibonacci function
+function fib(n)
+        N=N+1
+        if n<2 then
+                return n
+        else
+                return fib(n-1)+fib(n-2)
+        end
+end
+
+-- a general-purpose value cache
+function cache(f)
+        local c={}
+        return function (x)
+                local y=c[x]
+                if not y then
+                        y=f(x)
+                        c[x]=y
+                end
+                return y
+        end
+end
+
+-- run and time it
+function test(s,f)
+        N=0
+        local c=os.clock()
+        local v=f(n)
+        local t=os.clock()-c
+        print(s,n,v,t,N)
+end
+
+n=arg[1] or 24          -- for other values, do lua fib.lua XX
+n=tonumber(n)
+print("","n","value","time","evals")
+test("plain",fib)
+fib=cache(fib)
+test("cached",fib)
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/fibfor.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/fibfor.lua
new file mode 100644
index 0000000..19bb34b
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/fibfor.lua
@@ -0,0 +1,13 @@
+-- example of for with generator functions
+
+function generatefib (n)
+  return coroutine.wrap(function ()
+    local a,b = 1, 1
+    while a <= n do
+      coroutine.yield(a)
+      a, b = b, a+b
+    end
+  end, n)
+end
+
+for i in generatefib(1000) do print(i) end
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/globals.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/globals.lua
new file mode 100644
index 0000000..d4c20e1
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/globals.lua
@@ -0,0 +1,13 @@
+-- reads luac listings and reports global variable usage
+-- lines where a global is written to are marked with "*"
+-- typical usage: luac -p -l file.lua | lua globals.lua | sort | lua table.lua
+
+while 1 do
+ local s=io.read()
+ if s==nil then break end
+ local ok,_,l,op,g=string.find(s,"%[%-?(%d*)%]%s*([GS])ETGLOBAL.-;%s+(.*)$")
+ if ok then
+  if op=="S" then op="*" else op="" end
+  io.write(g,"\t",l,op,"\n")
+ end
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/hello.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/hello.lua
new file mode 100644
index 0000000..0925498
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/hello.lua
@@ -0,0 +1,3 @@
+-- the first program in every language
+
+io.write("Hello world, from ",_VERSION,"!\n")
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/life.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/life.lua
new file mode 100644
index 0000000..911d9fe
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/life.lua
@@ -0,0 +1,111 @@
+-- life.lua
+-- original by Dave Bollinger <DBollinger@compuserve.com> posted to lua-l
+-- modified to use ANSI terminal escape sequences
+-- modified to use for instead of while
+
+local write=io.write
+
+ALIVE="¥"       DEAD="þ"
+ALIVE="O"       DEAD="-"
+
+function delay() -- NOTE: SYSTEM-DEPENDENT, adjust as necessary
+  for i=1,10000 do end
+  -- local i=os.clock()+1 while(os.clock()<i) do end
+end
+
+function ARRAY2D(w,h)
+  local t = {w=w,h=h}
+  for y=1,h do
+    t[y] = {}
+    for x=1,w do
+      t[y][x]=0
+    end
+  end
+  return t
+end
+
+_CELLS = {}
+
+-- give birth to a "shape" within the cell array
+function _CELLS:spawn(shape,left,top)
+  for y=0,shape.h-1 do
+    for x=0,shape.w-1 do
+      self[top+y][left+x] = shape[y*shape.w+x+1]
+    end
+  end
+end
+
+-- run the CA and produce the next generation
+function _CELLS:evolve(next)
+  local ym1,y,yp1,yi=self.h-1,self.h,1,self.h
+  while yi > 0 do
+    local xm1,x,xp1,xi=self.w-1,self.w,1,self.w
+    while xi > 0 do
+      local sum = self[ym1][xm1] + self[ym1][x] + self[ym1][xp1] +
+                  self[y][xm1] + self[y][xp1] +
+                  self[yp1][xm1] + self[yp1][x] + self[yp1][xp1]
+      next[y][x] = ((sum==2) and self[y][x]) or ((sum==3) and 1) or 0
+      xm1,x,xp1,xi = x,xp1,xp1+1,xi-1
+    end
+    ym1,y,yp1,yi = y,yp1,yp1+1,yi-1
+  end
+end
+
+-- output the array to screen
+function _CELLS:draw()
+  local out="" -- accumulate to reduce flicker
+  for y=1,self.h do
+   for x=1,self.w do
+      out=out..(((self[y][x]>0) and ALIVE) or DEAD)
+    end
+    out=out.."\n"
+  end
+  write(out)
+end
+
+-- constructor
+function CELLS(w,h)
+  local c = ARRAY2D(w,h)
+  c.spawn = _CELLS.spawn
+  c.evolve = _CELLS.evolve
+  c.draw = _CELLS.draw
+  return c
+end
+
+--
+-- shapes suitable for use with spawn() above
+--
+HEART = { 1,0,1,1,0,1,1,1,1; w=3,h=3 }
+GLIDER = { 0,0,1,1,0,1,0,1,1; w=3,h=3 }
+EXPLODE = { 0,1,0,1,1,1,1,0,1,0,1,0; w=3,h=4 }
+FISH = { 0,1,1,1,1,1,0,0,0,1,0,0,0,0,1,1,0,0,1,0; w=5,h=4 }
+BUTTERFLY = { 1,0,0,0,1,0,1,1,1,0,1,0,0,0,1,1,0,1,0,1,1,0,0,0,1; w=5,h=5 }
+
+-- the main routine
+function LIFE(w,h)
+  -- create two arrays
+  local thisgen = CELLS(w,h)
+  local nextgen = CELLS(w,h)
+
+  -- create some life
+  -- about 1000 generations of fun, then a glider steady-state
+  thisgen:spawn(GLIDER,5,4)
+  thisgen:spawn(EXPLODE,25,10)
+  thisgen:spawn(FISH,4,12)
+
+  -- run until break
+  local gen=1
+  write("\027[2J")      -- ANSI clear screen
+  while 1 do
+    thisgen:evolve(nextgen)
+    thisgen,nextgen = nextgen,thisgen
+    write("\027[H")     -- ANSI home cursor
+    thisgen:draw()
+    write("Life - generation ",gen,"\n")
+    gen=gen+1
+    if gen>2000 then break end
+    --delay()           -- no delay
+  end
+end
+
+LIFE(40,20)
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/luac.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/luac.lua
new file mode 100644
index 0000000..b009ae9
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/luac.lua
@@ -0,0 +1,7 @@
+-- bare-bones luac in Lua
+-- usage: lua luac.lua file.lua
+
+assert(arg[1]~=nil and arg[2]==nil,"usage: lua luac.lua file.lua")
+f=assert(io.open("luac.out","wb"))
+f:write(string.dump(assert(loadfile(arg[1]))))
+io.close(f)
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/printf.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/printf.lua
new file mode 100644
index 0000000..66dfda6
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/printf.lua
@@ -0,0 +1,7 @@
+-- an implementation of printf
+
+function printf(...)
+ io.write(string.format(unpack(arg)))
+end
+
+printf("Hello %s from %s on %s\n",os.getenv"USER" or "there",_VERSION,os.date())
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/readonly.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/readonly.lua
new file mode 100644
index 0000000..85c0b4e
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/readonly.lua
@@ -0,0 +1,12 @@
+-- make global variables readonly
+
+local f=function (t,i) error("cannot redefine global variable `"..i.."'",2) end
+local g={}
+local G=getfenv()
+setmetatable(g,{__index=G,__newindex=f})
+setfenv(1,g)
+
+-- an example
+rawset(g,"x",3)
+x=2
+y=1     -- cannot redefine `y'
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/sieve.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/sieve.lua
new file mode 100644
index 0000000..0871bb2
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/sieve.lua
@@ -0,0 +1,29 @@
+-- the sieve of of Eratosthenes programmed with coroutines
+-- typical usage: lua -e N=1000 sieve.lua | column
+
+-- generate all the numbers from 2 to n
+function gen (n)
+  return coroutine.wrap(function ()
+    for i=2,n do coroutine.yield(i) end
+  end)
+end
+
+-- filter the numbers generated by `g', removing multiples of `p'
+function filter (p, g)
+  return coroutine.wrap(function ()
+    while 1 do
+      local n = g()
+      if n == nil then return end
+      if math.mod(n, p) ~= 0 then coroutine.yield(n) end
+    end
+  end)
+end
+
+N=N or 1000             -- from command line
+x = gen(N)              -- generate primes up to N
+while 1 do
+  local n = x()         -- pick a number until done
+  if n == nil then break end
+  print(n)              -- must be a prime number
+  x = filter(n, x)      -- now remove its multiples
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/sort.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/sort.lua
new file mode 100644
index 0000000..0bcb15f
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/sort.lua
@@ -0,0 +1,66 @@
+-- two implementations of a sort function
+-- this is an example only. Lua has now a built-in function "sort"
+
+-- extracted from Programming Pearls, page 110
+function qsort(x,l,u,f)
+ if l<u then
+  local m=math.random(u-(l-1))+l-1      -- choose a random pivot in range l..u
+  x[l],x[m]=x[m],x[l]                   -- swap pivot to first position
+  local t=x[l]                          -- pivot value
+  m=l
+  local i=l+1
+  while i<=u do
+    -- invariant: x[l+1..m] < t <= x[m+1..i-1]
+    if f(x[i],t) then
+      m=m+1
+      x[m],x[i]=x[i],x[m]               -- swap x[i] and x[m]
+    end
+    i=i+1
+  end
+  x[l],x[m]=x[m],x[l]                   -- swap pivot to a valid place
+  -- x[l+1..m-1] < x[m] <= x[m+1..u]
+  qsort(x,l,m-1,f)
+  qsort(x,m+1,u,f)
+ end
+end
+
+function selectionsort(x,n,f)
+ local i=1
+ while i<=n do
+  local m,j=i,i+1
+  while j<=n do
+   if f(x[j],x[m]) then m=j end
+   j=j+1
+  end
+ x[i],x[m]=x[m],x[i]                    -- swap x[i] and x[m]
+ i=i+1
+ end
+end
+
+function show(m,x)
+ io.write(m,"\n\t")
+ local i=1
+ while x[i] do
+  io.write(x[i])
+  i=i+1
+  if x[i] then io.write(",") end
+ end
+ io.write("\n")
+end
+
+function testsorts(x)
+ local n=1
+ while x[n] do n=n+1 end; n=n-1         -- count elements
+ show("original",x)
+ qsort(x,1,n,function (x,y) return x<y end)
+ show("after quicksort",x)
+ selectionsort(x,n,function (x,y) return x>y end)
+ show("after reverse selection sort",x)
+ qsort(x,1,n,function (x,y) return x<y end)
+ show("after quicksort again",x)
+end
+
+-- array to be sorted
+x={"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"}
+
+testsorts(x)
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/table.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/table.lua
new file mode 100644
index 0000000..235089c
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/table.lua
@@ -0,0 +1,12 @@
+-- make table, grouping all data for the same item
+-- input is 2 columns (item, data)
+
+local A
+while 1 do
+ local l=io.read()
+ if l==nil then break end
+ local _,_,a,b=string.find(l,'"?([_%w]+)"?%s*(.*)$')
+ if a~=A then A=a io.write("\n",a,":") end
+ io.write(" ",b)
+end
+io.write("\n")
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/trace-calls.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/trace-calls.lua
new file mode 100644
index 0000000..63c8b8f
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/trace-calls.lua
@@ -0,0 +1,32 @@
+-- trace calls
+-- example: lua -ltrace-calls.lua bisect.lua
+
+local level=0
+
+function hook(event)
+ local t=debug.getinfo(3)
+ io.write(level," >>> ",string.rep(" ",level))
+ if t~=nil and t.currentline>=0 then io.write(t.short_src,":",t.currentline," ") end
+ t=debug.getinfo(2)
+ if event=="call" then
+  level=level+1
+ else
+  level=level-1 if level<0 then level=0 end
+ end
+ if t.what=="main" then
+  if event=="call" then
+   io.write("begin ",t.short_src)
+  else
+   io.write("end ",t.short_src)
+  end
+ elseif t.what=="Lua" then
+-- table.foreach(t,print)
+  io.write(event," ",t.name or "(Lua)"," <",t.linedefined,":",t.short_src,">")
+ else
+ io.write(event," ",t.name or "(C)"," [",t.what,"] ")
+ end
+ io.write("\n")
+end
+
+debug.sethook(hook,"cr")
+level=0
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/trace-globals.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/trace-globals.lua
new file mode 100644
index 0000000..295e670
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/trace-globals.lua
@@ -0,0 +1,38 @@
+-- trace assigments to global variables
+
+do
+ -- a tostring that quotes strings. note the use of the original tostring.
+ local _tostring=tostring
+ local tostring=function(a)
+  if type(a)=="string" then
+   return string.format("%q",a)
+  else
+   return _tostring(a)
+  end
+ end
+
+ local log=function (name,old,new)
+  local t=debug.getinfo(3,"Sl")
+  local line=t.currentline
+  io.write(t.short_src)
+  if line>=0 then io.write(":",line) end
+  io.write(": ",name," is now ",tostring(new)," (was ",tostring(old),")","\n")
+ end
+
+ local g={}
+ local set=function (t,name,value)
+  log(name,g[name],value)
+  g[name]=value
+ end
+ setmetatable(getfenv(),{__index=g,__newindex=set})
+end
+
+-- an example
+
+a=1
+b=2
+a=10
+b=20
+b=nil
+b=200
+print(a,b,c)
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/undefined.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/undefined.lua
new file mode 100644
index 0000000..efe5f24
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/undefined.lua
@@ -0,0 +1,9 @@
+-- catch "undefined" global variables
+
+local f=function (t,i) error("undefined global variable `"..i.."'",2) end
+setmetatable(getfenv(),{__index=f})
+
+-- an example
+a=1
+c=3
+print(a,b,c)    -- `b' is undefined
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/xd.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/xd.lua
new file mode 100644
index 0000000..32331dc
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.0/xd.lua
@@ -0,0 +1,14 @@
+-- hex dump
+-- usage: lua xd.lua < file
+
+local offset=0
+
+while 1 do
+ local s=io.read(16)
+ if s==nil then return end
+ io.write(string.format("%08X  ",offset))
+ string.gsub(s,"(.)",function (c) io.write(string.format("%02X ",string.byte(c))) end)
+ io.write(string.rep(" ",3*(16-string.len(s))))
+ io.write(" ",string.gsub(s,"%c","."),"\n") 
+ offset=offset+16
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/bisect.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/bisect.lua
new file mode 100644
index 0000000..f91e69b
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/bisect.lua
@@ -0,0 +1,27 @@
+-- bisection method for solving non-linear equations
+
+delta=1e-6      -- tolerance
+
+function bisect(f,a,b,fa,fb)
+ local c=(a+b)/2
+ io.write(n," c=",c," a=",a," b=",b,"\n")
+ if c==a or c==b or math.abs(a-b)<delta then return c,b-a end
+ n=n+1
+ local fc=f(c)
+ if fa*fc<0 then return bisect(f,a,c,fa,fc) else return bisect(f,c,b,fc,fb) end
+end
+
+-- find root of f in the inverval [a,b]. needs f(a)*f(b)<0
+function solve(f,a,b)
+ n=0
+ local z,e=bisect(f,a,b,f(a),f(b))
+ io.write(string.format("after %d steps, root is %.17g with error %.1e, f=%.1e\n",n,z,e,f(z)))
+end
+
+-- our function
+function f(x)
+ return x*x*x-x-1
+end
+
+-- find zero in [1,2]
+solve(f,1,2)
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/cf.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/cf.lua
new file mode 100644
index 0000000..8cda54b
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/cf.lua
@@ -0,0 +1,16 @@
+-- temperature conversion table (celsius to farenheit)
+
+for c0=-20,50-1,10 do
+        io.write("C ")
+        for c=c0,c0+10-1 do
+                io.write(string.format("%3.0f ",c))
+        end
+        io.write("\n")
+        
+        io.write("F ")
+        for c=c0,c0+10-1 do
+                f=(9/5)*c+32
+                io.write(string.format("%3.0f ",f))
+        end
+        io.write("\n\n")
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/echo.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/echo.lua
new file mode 100644
index 0000000..4313439
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/echo.lua
@@ -0,0 +1,5 @@
+-- echo command line arguments
+
+for i=0,table.getn(arg) do
+ print(i,arg[i])
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/env.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/env.lua
new file mode 100644
index 0000000..9e62a57
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/env.lua
@@ -0,0 +1,7 @@
+-- read environment variables as if they were global variables
+
+local f=function (t,i) return os.getenv(i) end
+setmetatable(getfenv(),{__index=f})
+
+-- an example
+print(a,USER,PATH)
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/factorial.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/factorial.lua
new file mode 100644
index 0000000..7c4cf0f
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/factorial.lua
@@ -0,0 +1,32 @@
+-- function closures are powerful
+
+-- traditional fixed-point operator from functional programming
+Y = function (g)
+      local a = function (f) return f(f) end
+      return a(function (f)
+                 return g(function (x)
+                             local c=f(f)
+                             return c(x)
+                           end)
+               end)
+end
+
+
+-- factorial without recursion
+F = function (f)
+      return function (n)
+               if n == 0 then return 1
+               else return n*f(n-1) end
+             end
+    end
+
+factorial = Y(F)   -- factorial is the fixed point of F
+
+-- now test it
+function test(x)
+        io.write(x,"! = ",factorial(x),"\n")
+end
+
+for n=0,16 do
+        test(n)
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/fib.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/fib.lua
new file mode 100644
index 0000000..97a921b
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/fib.lua
@@ -0,0 +1,40 @@
+-- fibonacci function with cache
+
+-- very inefficient fibonacci function
+function fib(n)
+        N=N+1
+        if n<2 then
+                return n
+        else
+                return fib(n-1)+fib(n-2)
+        end
+end
+
+-- a general-purpose value cache
+function cache(f)
+        local c={}
+        return function (x)
+                local y=c[x]
+                if not y then
+                        y=f(x)
+                        c[x]=y
+                end
+                return y
+        end
+end
+
+-- run and time it
+function test(s,f)
+        N=0
+        local c=os.clock()
+        local v=f(n)
+        local t=os.clock()-c
+        print(s,n,v,t,N)
+end
+
+n=arg[1] or 24          -- for other values, do lua fib.lua XX
+n=tonumber(n)
+print("","n","value","time","evals")
+test("plain",fib)
+fib=cache(fib)
+test("cached",fib)
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/fibfor.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/fibfor.lua
new file mode 100644
index 0000000..8bbba39
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/fibfor.lua
@@ -0,0 +1,13 @@
+-- example of for with generator functions
+
+function generatefib (n)
+  return coroutine.wrap(function ()
+    local a,b = 1, 1
+    while a <= n do
+      coroutine.yield(a)
+      a, b = b, a+b
+    end
+  end)
+end
+
+for i in generatefib(1000) do print(i) end
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/globals.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/globals.lua
new file mode 100644
index 0000000..d4c20e1
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/globals.lua
@@ -0,0 +1,13 @@
+-- reads luac listings and reports global variable usage
+-- lines where a global is written to are marked with "*"
+-- typical usage: luac -p -l file.lua | lua globals.lua | sort | lua table.lua
+
+while 1 do
+ local s=io.read()
+ if s==nil then break end
+ local ok,_,l,op,g=string.find(s,"%[%-?(%d*)%]%s*([GS])ETGLOBAL.-;%s+(.*)$")
+ if ok then
+  if op=="S" then op="*" else op="" end
+  io.write(g,"\t",l,op,"\n")
+ end
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/hello.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/hello.lua
new file mode 100644
index 0000000..0925498
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/hello.lua
@@ -0,0 +1,3 @@
+-- the first program in every language
+
+io.write("Hello world, from ",_VERSION,"!\n")
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/life.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/life.lua
new file mode 100644
index 0000000..911d9fe
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/life.lua
@@ -0,0 +1,111 @@
+-- life.lua
+-- original by Dave Bollinger <DBollinger@compuserve.com> posted to lua-l
+-- modified to use ANSI terminal escape sequences
+-- modified to use for instead of while
+
+local write=io.write
+
+ALIVE="¥"       DEAD="þ"
+ALIVE="O"       DEAD="-"
+
+function delay() -- NOTE: SYSTEM-DEPENDENT, adjust as necessary
+  for i=1,10000 do end
+  -- local i=os.clock()+1 while(os.clock()<i) do end
+end
+
+function ARRAY2D(w,h)
+  local t = {w=w,h=h}
+  for y=1,h do
+    t[y] = {}
+    for x=1,w do
+      t[y][x]=0
+    end
+  end
+  return t
+end
+
+_CELLS = {}
+
+-- give birth to a "shape" within the cell array
+function _CELLS:spawn(shape,left,top)
+  for y=0,shape.h-1 do
+    for x=0,shape.w-1 do
+      self[top+y][left+x] = shape[y*shape.w+x+1]
+    end
+  end
+end
+
+-- run the CA and produce the next generation
+function _CELLS:evolve(next)
+  local ym1,y,yp1,yi=self.h-1,self.h,1,self.h
+  while yi > 0 do
+    local xm1,x,xp1,xi=self.w-1,self.w,1,self.w
+    while xi > 0 do
+      local sum = self[ym1][xm1] + self[ym1][x] + self[ym1][xp1] +
+                  self[y][xm1] + self[y][xp1] +
+                  self[yp1][xm1] + self[yp1][x] + self[yp1][xp1]
+      next[y][x] = ((sum==2) and self[y][x]) or ((sum==3) and 1) or 0
+      xm1,x,xp1,xi = x,xp1,xp1+1,xi-1
+    end
+    ym1,y,yp1,yi = y,yp1,yp1+1,yi-1
+  end
+end
+
+-- output the array to screen
+function _CELLS:draw()
+  local out="" -- accumulate to reduce flicker
+  for y=1,self.h do
+   for x=1,self.w do
+      out=out..(((self[y][x]>0) and ALIVE) or DEAD)
+    end
+    out=out.."\n"
+  end
+  write(out)
+end
+
+-- constructor
+function CELLS(w,h)
+  local c = ARRAY2D(w,h)
+  c.spawn = _CELLS.spawn
+  c.evolve = _CELLS.evolve
+  c.draw = _CELLS.draw
+  return c
+end
+
+--
+-- shapes suitable for use with spawn() above
+--
+HEART = { 1,0,1,1,0,1,1,1,1; w=3,h=3 }
+GLIDER = { 0,0,1,1,0,1,0,1,1; w=3,h=3 }
+EXPLODE = { 0,1,0,1,1,1,1,0,1,0,1,0; w=3,h=4 }
+FISH = { 0,1,1,1,1,1,0,0,0,1,0,0,0,0,1,1,0,0,1,0; w=5,h=4 }
+BUTTERFLY = { 1,0,0,0,1,0,1,1,1,0,1,0,0,0,1,1,0,1,0,1,1,0,0,0,1; w=5,h=5 }
+
+-- the main routine
+function LIFE(w,h)
+  -- create two arrays
+  local thisgen = CELLS(w,h)
+  local nextgen = CELLS(w,h)
+
+  -- create some life
+  -- about 1000 generations of fun, then a glider steady-state
+  thisgen:spawn(GLIDER,5,4)
+  thisgen:spawn(EXPLODE,25,10)
+  thisgen:spawn(FISH,4,12)
+
+  -- run until break
+  local gen=1
+  write("\027[2J")      -- ANSI clear screen
+  while 1 do
+    thisgen:evolve(nextgen)
+    thisgen,nextgen = nextgen,thisgen
+    write("\027[H")     -- ANSI home cursor
+    thisgen:draw()
+    write("Life - generation ",gen,"\n")
+    gen=gen+1
+    if gen>2000 then break end
+    --delay()           -- no delay
+  end
+end
+
+LIFE(40,20)
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/luac.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/luac.lua
new file mode 100644
index 0000000..96a0a97
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/luac.lua
@@ -0,0 +1,7 @@
+-- bare-bones luac in Lua
+-- usage: lua luac.lua file.lua
+
+assert(arg[1]~=nil and arg[2]==nil,"usage: lua luac.lua file.lua")
+f=assert(io.open("luac.out","wb"))
+assert(f:write(string.dump(assert(loadfile(arg[1])))))
+assert(f:close())
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/printf.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/printf.lua
new file mode 100644
index 0000000..58c63ff
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/printf.lua
@@ -0,0 +1,7 @@
+-- an implementation of printf
+
+function printf(...)
+ io.write(string.format(...))
+end
+
+printf("Hello %s from %s on %s\n",os.getenv"USER" or "there",_VERSION,os.date())
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/readonly.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/readonly.lua
new file mode 100644
index 0000000..85c0b4e
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/readonly.lua
@@ -0,0 +1,12 @@
+-- make global variables readonly
+
+local f=function (t,i) error("cannot redefine global variable `"..i.."'",2) end
+local g={}
+local G=getfenv()
+setmetatable(g,{__index=G,__newindex=f})
+setfenv(1,g)
+
+-- an example
+rawset(g,"x",3)
+x=2
+y=1     -- cannot redefine `y'
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/sieve.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/sieve.lua
new file mode 100644
index 0000000..0871bb2
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/sieve.lua
@@ -0,0 +1,29 @@
+-- the sieve of of Eratosthenes programmed with coroutines
+-- typical usage: lua -e N=1000 sieve.lua | column
+
+-- generate all the numbers from 2 to n
+function gen (n)
+  return coroutine.wrap(function ()
+    for i=2,n do coroutine.yield(i) end
+  end)
+end
+
+-- filter the numbers generated by `g', removing multiples of `p'
+function filter (p, g)
+  return coroutine.wrap(function ()
+    while 1 do
+      local n = g()
+      if n == nil then return end
+      if math.mod(n, p) ~= 0 then coroutine.yield(n) end
+    end
+  end)
+end
+
+N=N or 1000             -- from command line
+x = gen(N)              -- generate primes up to N
+while 1 do
+  local n = x()         -- pick a number until done
+  if n == nil then break end
+  print(n)              -- must be a prime number
+  x = filter(n, x)      -- now remove its multiples
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/sort.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/sort.lua
new file mode 100644
index 0000000..0bcb15f
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/sort.lua
@@ -0,0 +1,66 @@
+-- two implementations of a sort function
+-- this is an example only. Lua has now a built-in function "sort"
+
+-- extracted from Programming Pearls, page 110
+function qsort(x,l,u,f)
+ if l<u then
+  local m=math.random(u-(l-1))+l-1      -- choose a random pivot in range l..u
+  x[l],x[m]=x[m],x[l]                   -- swap pivot to first position
+  local t=x[l]                          -- pivot value
+  m=l
+  local i=l+1
+  while i<=u do
+    -- invariant: x[l+1..m] < t <= x[m+1..i-1]
+    if f(x[i],t) then
+      m=m+1
+      x[m],x[i]=x[i],x[m]               -- swap x[i] and x[m]
+    end
+    i=i+1
+  end
+  x[l],x[m]=x[m],x[l]                   -- swap pivot to a valid place
+  -- x[l+1..m-1] < x[m] <= x[m+1..u]
+  qsort(x,l,m-1,f)
+  qsort(x,m+1,u,f)
+ end
+end
+
+function selectionsort(x,n,f)
+ local i=1
+ while i<=n do
+  local m,j=i,i+1
+  while j<=n do
+   if f(x[j],x[m]) then m=j end
+   j=j+1
+  end
+ x[i],x[m]=x[m],x[i]                    -- swap x[i] and x[m]
+ i=i+1
+ end
+end
+
+function show(m,x)
+ io.write(m,"\n\t")
+ local i=1
+ while x[i] do
+  io.write(x[i])
+  i=i+1
+  if x[i] then io.write(",") end
+ end
+ io.write("\n")
+end
+
+function testsorts(x)
+ local n=1
+ while x[n] do n=n+1 end; n=n-1         -- count elements
+ show("original",x)
+ qsort(x,1,n,function (x,y) return x<y end)
+ show("after quicksort",x)
+ selectionsort(x,n,function (x,y) return x>y end)
+ show("after reverse selection sort",x)
+ qsort(x,1,n,function (x,y) return x<y end)
+ show("after quicksort again",x)
+end
+
+-- array to be sorted
+x={"Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"}
+
+testsorts(x)
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/table.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/table.lua
new file mode 100644
index 0000000..235089c
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/table.lua
@@ -0,0 +1,12 @@
+-- make table, grouping all data for the same item
+-- input is 2 columns (item, data)
+
+local A
+while 1 do
+ local l=io.read()
+ if l==nil then break end
+ local _,_,a,b=string.find(l,'"?([_%w]+)"?%s*(.*)$')
+ if a~=A then A=a io.write("\n",a,":") end
+ io.write(" ",b)
+end
+io.write("\n")
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/trace-calls.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/trace-calls.lua
new file mode 100644
index 0000000..6d7a7b3
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/trace-calls.lua
@@ -0,0 +1,32 @@
+-- trace calls
+-- example: lua -ltrace-calls bisect.lua
+
+local level=0
+
+local function hook(event)
+ local t=debug.getinfo(3)
+ io.write(level," >>> ",string.rep(" ",level))
+ if t~=nil and t.currentline>=0 then io.write(t.short_src,":",t.currentline," ") end
+ t=debug.getinfo(2)
+ if event=="call" then
+  level=level+1
+ else
+  level=level-1 if level<0 then level=0 end
+ end
+ if t.what=="main" then
+  if event=="call" then
+   io.write("begin ",t.short_src)
+  else
+   io.write("end ",t.short_src)
+  end
+ elseif t.what=="Lua" then
+-- table.foreach(t,print)
+  io.write(event," ",t.name or "(Lua)"," <",t.linedefined,":",t.short_src,">")
+ else
+ io.write(event," ",t.name or "(C)"," [",t.what,"] ")
+ end
+ io.write("\n")
+end
+
+debug.sethook(hook,"cr")
+level=0
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/trace-globals.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/trace-globals.lua
new file mode 100644
index 0000000..295e670
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/trace-globals.lua
@@ -0,0 +1,38 @@
+-- trace assigments to global variables
+
+do
+ -- a tostring that quotes strings. note the use of the original tostring.
+ local _tostring=tostring
+ local tostring=function(a)
+  if type(a)=="string" then
+   return string.format("%q",a)
+  else
+   return _tostring(a)
+  end
+ end
+
+ local log=function (name,old,new)
+  local t=debug.getinfo(3,"Sl")
+  local line=t.currentline
+  io.write(t.short_src)
+  if line>=0 then io.write(":",line) end
+  io.write(": ",name," is now ",tostring(new)," (was ",tostring(old),")","\n")
+ end
+
+ local g={}
+ local set=function (t,name,value)
+  log(name,g[name],value)
+  g[name]=value
+ end
+ setmetatable(getfenv(),{__index=g,__newindex=set})
+end
+
+-- an example
+
+a=1
+b=2
+a=10
+b=20
+b=nil
+b=200
+print(a,b,c)
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/xd.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/xd.lua
new file mode 100644
index 0000000..ebc3eff
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/5.1/xd.lua
@@ -0,0 +1,14 @@
+-- hex dump
+-- usage: lua xd.lua < file
+
+local offset=0
+while true do
+ local s=io.read(16)
+ if s==nil then return end
+ io.write(string.format("%08X  ",offset))
+ string.gsub(s,"(.)",
+        function (c) io.write(string.format("%02X ",string.byte(c))) end)
+ io.write(string.rep(" ",3*(16-string.len(s))))
+ io.write(" ",string.gsub(s,"%c","."),"\n") 
+ offset=offset+16
+end
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/README b/LuaSL/testLua/yueliang-0.4.1/test_lua/README
new file mode 100644
index 0000000..07d9eb2
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/README
@@ -0,0 +1,65 @@
+test_scripts-5.*.lua
+----------------------
+
+The scripts test_scripts*.lua are for exercising the frontends. Such
+testing is non-exhaustive, but useful all the same.
+
+The files in the 5.0 directory are the sample scripts from the Lua 5.0.x
+test directory. Ditto for the 5.1 directory. See the COPYRIGHT_Lua5 for
+the copyright notice.
+
+For example, to run the 5.0.x script tester:
+
+        >lua test_scripts-5.0.lua
+
+Or, if you have both Lua 5.0.x and Lua 5.1.x, you can prepare two
+binaries and run them like this:
+
+        >lua5.0 test_scripts-5.0.lua
+        >lua5.1 test_scripts-5.1.lua
+
+If the compilation result is exact, "CORRECT" is printed, otherwise both
+binary chunks are written to the current directory as bc1.out and
+bc2.out. You can use a disassembly tool like ChunkSpy to generate
+listings for both files, then they can be compared with a visual diff
+tool. ChunkSpy 0.9.8 supports 5.0.x and 5.1.x.
+
+For testing additional files, add the argument "ALL" like this:
+
+        >lua test_scripts-5.0.lua ALL
+
+This will pull in additional personal script files for testing. But in
+order to do so, you'd have to adjust the files files-other-*.txt.
+
+Current status:
+
+Frontend version        File set                        Result
+---------------------------------------------------------------------
+Yueliang 5.0.3          files-lua-5.0.txt               ALL CORRECT
+                        files-yueliang-5.0.txt          ALL CORRECT
+Yueliang 5.1.2          files-lua-5.1.txt               ALL CORRECT
+                        files-yueliang-5.1.txt          ALL CORRECT
+---------------------------------------------------------------------
+
+test_parser-5.x.lua
+-------------------
+
+The script files test_parser-5.0.lua and test_parser-5.1.lua contains
+many test cases for both parsers. There are a lot of failure cases as
+well as pass cases in order to exercise the parsers well, though the
+test list is not exhaustive.
+
+        test_parser-5.0.lua     503 test cases
+        test_parser-5.1.lua     524 test cases
+
+For the actual test scripts, see test_lparser2.lua in the respective
+test directories of each front end. The 5.0.x front end of Yueliang
+passed all the tests in test_parser-5.0.lua without any failures, while
+testing of the 5.1.x front end using test_parser-5.1.lua led to one
+bug found and fixed.
+
+For Lua 5.0.2, see Yueliang 0.1.3, which was the last release of Lua
+5.0.2 material.
+
+For Lua 5.1.1, see Yueliang 0.2.1, which was the last release of Lua
+5.1.1 material.
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/files-lua-5.0.txt b/LuaSL/testLua/yueliang-0.4.1/test_lua/files-lua-5.0.txt
new file mode 100644
index 0000000..d6b0c3c
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/files-lua-5.0.txt
@@ -0,0 +1,21 @@
+# these are the sample scripts found in Lua 5.0.x
+5.0/bisect.lua
+5.0/cf.lua
+5.0/echo.lua
+5.0/env.lua
+5.0/factorial.lua
+5.0/fib.lua
+5.0/fibfor.lua
+5.0/globals.lua
+5.0/hello.lua
+5.0/life.lua
+5.0/luac.lua
+5.0/printf.lua
+5.0/readonly.lua
+5.0/sieve.lua
+5.0/sort.lua
+5.0/table.lua
+5.0/trace-calls.lua
+5.0/trace-globals.lua
+5.0/undefined.lua
+5.0/xd.lua
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/files-lua-5.1.txt b/LuaSL/testLua/yueliang-0.4.1/test_lua/files-lua-5.1.txt
new file mode 100644
index 0000000..a11d670
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/files-lua-5.1.txt
@@ -0,0 +1,20 @@
+# these are the sample scripts found in Lua 5.1.x
+5.1/bisect.lua
+5.1/cf.lua
+5.1/echo.lua
+5.1/env.lua
+5.1/factorial.lua
+5.1/fib.lua
+5.1/fibfor.lua
+5.1/globals.lua
+5.1/hello.lua
+5.1/life.lua
+5.1/luac.lua
+5.1/printf.lua
+5.1/readonly.lua
+5.1/sieve.lua
+5.1/sort.lua
+5.1/table.lua
+5.1/trace-calls.lua
+5.1/trace-globals.lua
+5.1/xd.lua
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/files-other-5.0.txt b/LuaSL/testLua/yueliang-0.4.1/test_lua/files-other-5.0.txt
new file mode 100644
index 0000000..a661bc5
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/files-other-5.0.txt
@@ -0,0 +1,21 @@
+# these are other 5.0.x scripts found in my project directories
+# WARNING currently out of date...
+
+../../SciTELuaExporters/SciTE_ExportBase.lua
+../../SciTELuaExporters/SciTE_ExporterABW.lua
+../../SciTELuaExporters/SciTE_ExporterHTML.lua
+../../SciTELuaExporters/SciTE_ExporterHTMLPlus.lua
+../../SciTELuaExporters/SciTE_ExporterODT.lua
+../../SciTELuaExporters/SciTE_ExporterPDF.lua
+../../SciTELuaExporters/SciTE_ExporterPDFPlus.lua
+../../SciTELuaExporters/SciTE_ExporterRTF.lua
+../../SciTELuaExporters/SciTE_ExporterSXW.lua
+../../SciTELuaExporters/SciTE_ExporterTeX.lua
+../../SciTELuaExporters/SciTE_ExporterTemplate.lua
+../../SciTELuaExporters/SciTE_ExporterXML.lua
+../../LuaSrcDiet/LuaSrcDiet.lua
+../../LuaSrcDiet/LuaSrcDiet_.lua
+../../ChunkBake/ChunkBake.lua
+../../ChunkBake/misc/TestRig.lua
+../../ChunkSpy/5.0.2/ChunkSpy.lua
+../../ChunkSpy/5.1-work4/ChunkSpy.lua
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/files-other-5.1.txt b/LuaSL/testLua/yueliang-0.4.1/test_lua/files-other-5.1.txt
new file mode 100644
index 0000000..fa5827d
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/files-other-5.1.txt
@@ -0,0 +1,3 @@
+# these are other 5.1.x scripts found in my project directories
+# WARNING currently out of date...
+
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/files-yueliang-5.0.txt b/LuaSL/testLua/yueliang-0.4.1/test_lua/files-yueliang-5.0.txt
new file mode 100644
index 0000000..72e1da9
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/files-yueliang-5.0.txt
@@ -0,0 +1,34 @@
+# these are yueliang files for 5.0.x
+
+test_scripts-5.0.lua
+
+../orig-5.0.3/lzio.lua
+../orig-5.0.3/ldump.lua
+../orig-5.0.3/lopcodes.lua
+../orig-5.0.3/llex.lua
+../orig-5.0.3/lparser.lua
+../orig-5.0.3/lcode.lua
+../orig-5.0.3/luac.lua
+
+../orig-5.0.3/test/test_lzio.lua
+../orig-5.0.3/test/test_ldump.lua
+../orig-5.0.3/test/test_llex.lua
+../orig-5.0.3/test/test_lparser.lua
+../orig-5.0.3/test/test_number.lua
+../orig-5.0.3/test/bench_llex.lua
+../orig-5.0.3/tools/call_graph.lua
+../orig-5.0.3/tools/sample_expr.lua
+
+../nat-5.0.3/lzio_mk2.lua
+../nat-5.0.3/lzio_mk4.lua
+../nat-5.0.3/llex_mk2.lua
+../nat-5.0.3/llex_mk3.lua
+../nat-5.0.3/llex_mk4.lua
+
+../nat-5.0.3/test/test_lzio_mk2.lua
+../nat-5.0.3/test/test_llex_mk2.lua
+../nat-5.0.3/test/test_llex_mk3.lua
+../nat-5.0.3/test/test_llex_mk4.lua
+../nat-5.0.3/test/bench_llex_mk2.lua
+../nat-5.0.3/test/bench_llex_mk3.lua
+../nat-5.0.3/test/bench_llex_mk4.lua
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/files-yueliang-5.1.txt b/LuaSL/testLua/yueliang-0.4.1/test_lua/files-yueliang-5.1.txt
new file mode 100644
index 0000000..6a112d9
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/files-yueliang-5.1.txt
@@ -0,0 +1,19 @@
+# these are yueliang files for 5.1.x
+
+test_scripts-5.1.lua
+
+../orig-5.1.3/lzio.lua
+../orig-5.1.3/ldump.lua
+../orig-5.1.3/lopcodes.lua
+../orig-5.1.3/llex.lua
+../orig-5.1.3/lparser.lua
+../orig-5.1.3/lcode.lua
+../orig-5.1.3/luac.lua
+
+../orig-5.1.3/test/test_lzio.lua
+../orig-5.1.3/test/test_ldump.lua
+../orig-5.1.3/test/test_llex.lua
+../orig-5.1.3/test/test_lparser.lua
+../orig-5.1.3/test/test_number.lua
+../orig-5.1.3/test/bench_llex.lua
+
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/test_parser-5.0.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/test_parser-5.0.lua
new file mode 100644
index 0000000..b563ed3
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/test_parser-5.0.lua
@@ -0,0 +1,761 @@
+--[[--------------------------------------------------------------------
+
+  test_parser-5.0.lua
+  Lua 5.0.x parser test cases
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * there is no intention of properly specifying a grammar; the notes
+--   are meant to reflect the structure of lparser so that it is easy
+--   to locate and modify lparser if so desired
+-- * some test may have invalid expressions but will compile, this
+--   is because the chunk hasn't been executed yet
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- lparser parsing structure, the Lua 5.0.x version...
+----------------------------------------------------------------------]]
+  --------------------------------------------------------------------
+  -- chunk -> { stat [';'] }
+  --------------------------------------------------------------------
+  -- stat -> DO block END
+  -- block -> chunk
+  --------------------------------------------------------------------
+  -- stat -> breakstat
+  -- breakstat -> BREAK
+  -- * must have a loop to break
+  -- * must be last statement in a block
+  --------------------------------------------------------------------
+  -- stat -> retstat
+  -- retstat -> RETURN explist
+  -- * must be last statement in a block
+  --------------------------------------------------------------------
+  -- stat -> exprstat
+  -- exprstat -> primaryexp
+  --         (-> func | assignment)
+  -- * if LHS is VCALL then func, otherwise assignment
+  -- * for func, LHS is VCALL if funcargs in expression
+  --------------------------------------------------------------------
+  -- stat -> funcstat
+  -- funcstat -> FUNCTION funcname body
+  -- funcname -> NAME {'.' NAME} [':' NAME]
+  --------------------------------------------------------------------
+  -- body ->  '(' parlist ')' chunk END
+  -- parlist -> [ param { ',' param } ]
+  -- param -> NAME
+  -- * DOTS must be the last parameter in a parlist
+  --------------------------------------------------------------------
+  -- stat -> LOCAL localstat
+  -- LOCAL localstat -> LOCAL NAME {',' NAME} ['=' explist1]
+  -- explist1 -> expr { ',' expr }
+  --------------------------------------------------------------------
+  -- stat -> LOCAL FUNCTION localfunc
+  -- LOCAL FUNCTION localfunc -> LOCAL FUNCTION NAME body
+  --------------------------------------------------------------------
+  -- stat -> ifstat
+  -- ifstat -> IF cond THEN block
+  --           {ELSEIF cond THEN block}
+  --           [ELSE block] END
+  -- block -> chunk
+  -- cond -> expr
+  --------------------------------------------------------------------
+  -- stat -> forstat
+  -- forstat -> fornum | forlist
+  -- forlist -> NAME {,NAME} IN explist1 forbody END
+  -- fornum -> NAME = exp1,exp1[,exp1] forbody END
+  -- forbody -> DO block
+  -- block -> chunk
+  --------------------------------------------------------------------
+  -- stat -> whilestat
+  -- whilestat -> WHILE cond DO block END
+  -- block -> chunk
+  -- cond -> expr
+  --------------------------------------------------------------------
+  -- stat -> repeatstat
+  -- repeatstat -> REPEAT block UNTIL cond
+  -- block -> chunk
+  -- cond -> expr
+  --------------------------------------------------------------------
+  -- assignment -> ',' primaryexp assignment
+  --             | '=' explist1
+  -- explist1 -> expr { ',' expr }
+  -- * for assignment, LHS must be LOCAL, UPVAL, GLOBAL or INDEXED
+  --------------------------------------------------------------------
+  -- primaryexp -> prefixexp { '.' NAME | '[' exp ']' | ':' NAME funcargs | funcargs }
+  -- prefixexp -> NAME | '(' expr ')'
+  -- funcargs -> '(' [ explist1 ] ')' | constructor | STRING
+  -- * funcargs turn an expr into a function call
+  --------------------------------------------------------------------
+  -- expr -> subexpr
+  -- subexpr -> (UNOPR subexpr | simpleexp) { BINOPR subexpr }
+  -- simpleexp -> NUMBER | STRING | NIL | TRUE | FALSE
+  --            | constructor | FUNCTION body | primaryexp
+  --------------------------------------------------------------------
+  -- constructor -> '{' [ field { fieldsep field } [ fieldsep ] ] '}'
+  -- fieldsep -> ',' | ';'
+  -- field -> recfield | listfield
+  -- recfield -> ( NAME | '[' exp1 ']' ) = exp1
+  -- listfield -> expr
+  --------------------------------------------------------------------
+
+--[[--------------------------------------------------------------------
+-- parser test cases, Lua 5.0.x
+-- * uncomment string delimiter to enable syntax highlighting...
+-- * anything that matches "^%s*%-%-" is a comment
+-- * headings to display are "^%s*TESTS:%s*(.*)$"
+-- * FAIL test cases should match "%s*%-%-%s*FAIL%s*$"
+----------------------------------------------------------------------]]
+tests_source = [[
+  --------------------------------------------------------------------
+  TESTS: empty chunks
+  --------------------------------------------------------------------
+  -- chunk -> { stat [';'] }
+  --------------------------------------------------------------------
+
+;                                       -- FAIL
+  --------------------------------------------------------------------
+  TESTS: optional semicolon, simple local statements
+  --------------------------------------------------------------------
+  -- stat -> LOCAL localstat
+  -- LOCAL localstat -> LOCAL NAME {',' NAME} ['=' explist1]
+  -- explist1 -> expr { ',' expr }
+  --------------------------------------------------------------------
+local                                   -- FAIL
+local;                                  -- FAIL
+local =                                 -- FAIL
+local end                               -- FAIL
+local a
+local a;
+local a, b, c
+local a; local b local c;
+local a = 1
+local a local b = a
+local a, b = 1, 2
+local a, b, c = 1, 2, 3
+local a, b, c = 1
+local a = 1, 2, 3
+local a, local                          -- FAIL
+local 1                                 -- FAIL
+local "foo"                             -- FAIL
+local a = local                         -- FAIL
+local a, b, =                           -- FAIL
+local a, b = 1, local                   -- FAIL
+local a, b = , local                    -- FAIL
+  --------------------------------------------------------------------
+  TESTS: simple DO blocks
+  --------------------------------------------------------------------
+  -- stat -> DO block END
+  -- block -> chunk
+  --------------------------------------------------------------------
+do                                      -- FAIL
+end                                     -- FAIL
+do end
+do ; end                                -- FAIL
+do 1 end                                -- FAIL
+do "foo" end                            -- FAIL
+do local a, b end
+do local a local b end
+do local a; local b; end
+do local a = 1 end
+do do end end
+do do end; end
+do do do end end end
+do do do end; end; end
+do do do return end end end
+do end do                               -- FAIL
+do end end                              -- FAIL
+do return end
+do return return end                    -- FAIL
+do break end                            -- FAIL
+  --------------------------------------------------------------------
+  TESTS: simple WHILE loops
+  --------------------------------------------------------------------
+  -- stat -> whilestat
+  -- whilestat -> WHILE cond DO block END
+  -- block -> chunk
+  -- cond -> expr
+  --------------------------------------------------------------------
+while                                   -- FAIL
+while do                                -- FAIL
+while =                                 -- FAIL
+while 1 do                              -- FAIL
+while 1 do end
+while 1 do local a end
+while 1 do local a local b end
+while 1 do local a; local b; end
+while 1 do 2 end                        -- FAIL
+while 1 do "foo" end                    -- FAIL
+while true do end
+while 1 do ; end                        -- FAIL
+while 1 do while                        -- FAIL
+while 1 end                             -- FAIL
+while 1 2 do                            -- FAIL
+while 1 = 2 do                          -- FAIL
+while 1 do return end
+while 1 do return return end            -- FAIL
+while 1 do do end end
+while 1 do do return end end
+while 1 do break end
+while 1 do break break end              -- FAIL
+while 1 do do break end end
+  --------------------------------------------------------------------
+  TESTS: simple REPEAT loops
+  --------------------------------------------------------------------
+  -- stat -> repeatstat
+  -- repeatstat -> REPEAT block UNTIL cond
+  -- block -> chunk
+  -- cond -> expr
+  --------------------------------------------------------------------
+repeat                                  -- FAIL
+repeat until                            -- FAIL
+repeat until 0
+repeat until false
+repeat until local                      -- FAIL
+repeat end                              -- FAIL
+repeat 1                                -- FAIL
+repeat =                                -- FAIL
+repeat local a until 1
+repeat local a local b until 0
+repeat local a; local b; until 0
+repeat ; until 1                        -- FAIL
+repeat 2 until 1                        -- FAIL
+repeat "foo" until 1                    -- FAIL
+repeat return until 0
+repeat return return until 0            -- FAIL
+repeat break until 0
+repeat break break until 0              -- FAIL
+repeat do end until 0
+repeat do return end until 0
+repeat do break end until 0
+  --------------------------------------------------------------------
+  TESTS: simple FOR loops
+  --------------------------------------------------------------------
+  -- stat -> forstat
+  -- forstat -> fornum | forlist
+  -- forlist -> NAME {,NAME} IN explist1 forbody END
+  -- fornum -> NAME = exp1,exp1[,exp1] forbody END
+  -- forbody -> DO block
+  -- block -> chunk
+  --------------------------------------------------------------------
+for                                     -- FAIL
+for do                                  -- FAIL
+for end                                 -- FAIL
+for 1                                   -- FAIL
+for a                                   -- FAIL
+for true                                -- FAIL
+for a, in                               -- FAIL
+for a in                                -- FAIL
+for a do                                -- FAIL
+for a in do                             -- FAIL
+for a in b do                           -- FAIL
+for a in b end                          -- FAIL
+for a in b, do                          -- FAIL
+for a in b do end
+for a in b do local a local b end
+for a in b do local a; local b; end
+for a in b do 1 end                     -- FAIL
+for a in b do "foo" end                 -- FAIL
+for a b in                              -- FAIL
+for a, b, c in p do end
+for a, b, c in p, q, r do end
+for a in 1 do end
+for a in true do end
+for a in "foo" do end
+for a in b do break end
+for a in b do break break end           -- FAIL
+for a in b do return end
+for a in b do return return end         -- FAIL
+for a in b do do end end
+for a in b do do break end end
+for a in b do do return end end
+for =                                   -- FAIL
+for a =                                 -- FAIL
+for a, b =                              -- FAIL
+for a = do                              -- FAIL
+for a = 1, do                           -- FAIL
+for a = p, q, do                        -- FAIL
+for a = p q do                          -- FAIL
+for a = b do end                        -- FAIL
+for a = 1, 2, 3, 4 do end               -- FAIL
+for a = p, q do end
+for a = 1, 2 do end
+for a = 1, 2 do local a local b end
+for a = 1, 2 do local a; local b; end
+for a = 1, 2 do 3 end                   -- FAIL
+for a = 1, 2 do "foo" end               -- FAIL
+for a = p, q, r do end
+for a = 1, 2, 3 do end
+for a = p, q do break end
+for a = p, q do break break end         -- FAIL
+for a = 1, 2 do return end
+for a = 1, 2 do return return end       -- FAIL
+for a = p, q do do end end
+for a = p, q do do break end end
+for a = p, q do do return end end
+  --------------------------------------------------------------------
+  TESTS: break statement
+  --------------------------------------------------------------------
+  -- stat -> breakstat
+  -- breakstat -> BREAK
+  -- * must have a loop to break
+  -- * must be last statement in a block
+  --------------------------------------------------------------------
+break                                   -- FAIL
+  --------------------------------------------------------------------
+  TESTS: return statement
+  --------------------------------------------------------------------
+  -- stat -> retstat
+  -- retstat -> RETURN explist
+  -- * must be last statement in a block
+  --------------------------------------------------------------------
+return
+return;
+return return                           -- FAIL
+return 1
+return local                            -- FAIL
+return "foo"
+return 1,                               -- FAIL
+return 1,2,3
+return a,b,c,d
+return 1,2;
+  --------------------------------------------------------------------
+  TESTS: conditional statements
+  --------------------------------------------------------------------
+  -- stat -> ifstat
+  -- ifstat -> IF cond THEN block
+  --           {ELSEIF cond THEN block}
+  --           [ELSE block] END
+  -- block -> chunk
+  -- cond -> expr
+  --------------------------------------------------------------------
+if                                      -- FAIL
+elseif                                  -- FAIL
+else                                    -- FAIL
+then                                    -- FAIL
+if then                                 -- FAIL
+if 1                                    -- FAIL
+if 1 then                               -- FAIL
+if 1 else                               -- FAIL
+if 1 then else                          -- FAIL
+if 1 then elseif                        -- FAIL
+if 1 then end
+if 1 then local a end
+if 1 then local a local b end
+if 1 then local a; local b; end
+if 1 then else end
+if 1 then local a else local b end
+if 1 then local a; else local b; end
+if 1 then elseif 2                      -- FAIL
+if 1 then elseif 2 then                 -- FAIL
+if 1 then elseif 2 then end
+if 1 then local a elseif 2 then local b end
+if 1 then local a; elseif 2 then local b; end
+if 1 then elseif 2 then else end
+if 1 then else if 2 then end end
+if 1 then else if 2 then end            -- FAIL
+if 1 then break end                     -- FAIL
+if 1 then return end
+if 1 then return return end             -- FAIL
+if 1 then end; if 1 then end;
+  --------------------------------------------------------------------
+  TESTS: function statements
+  --------------------------------------------------------------------
+  -- stat -> funcstat
+  -- funcstat -> FUNCTION funcname body
+  -- funcname -> NAME {'.' NAME} [':' NAME]
+  --------------------------------------------------------------------
+  -- body ->  '(' parlist ')' chunk END
+  -- parlist -> [ param { ',' param } ]
+  -- param -> NAME
+  -- * DOTS must be the last parameter in a parlist
+  --------------------------------------------------------------------
+function                                -- FAIL
+function 1                              -- FAIL
+function end                            -- FAIL
+function a                              -- FAIL
+function a end                          -- FAIL
+function a( end                         -- FAIL
+function a() end
+function a(1                            -- FAIL
+function a("foo"                        -- FAIL
+function a(p                            -- FAIL
+function a(p,)                          -- FAIL
+function a(p q                          -- FAIL
+function a(p) end
+function a(p,q,) end                    -- FAIL
+function a(p,q,r) end
+function a(p,q,1                        -- FAIL
+function a(p) do                        -- FAIL
+function a(p) 1 end                     -- FAIL
+function a(p) return end
+function a(p) break end                 -- FAIL
+function a(p) return return end         -- FAIL
+function a(p) do end end
+function a.(                            -- FAIL
+function a.1                            -- FAIL
+function a.b() end
+function a.b,                           -- FAIL
+function a.b.(                          -- FAIL
+function a.b.c.d() end
+function a:                             -- FAIL
+function a:1                            -- FAIL
+function a:b() end
+function a:b:                           -- FAIL
+function a:b.                           -- FAIL
+function a.b.c:d() end
+function a(...) end
+function a(...,                         -- FAIL
+function a(p,...) end
+function a(p,q,r,...) end
+function a() local a local b end
+function a() local a; local b; end
+function a() end; function a() end;
+  --------------------------------------------------------------------
+  TESTS: local function statements
+  --------------------------------------------------------------------
+  -- stat -> LOCAL FUNCTION localfunc
+  -- LOCAL FUNCTION localfunc -> LOCAL FUNCTION NAME body
+  --------------------------------------------------------------------
+local function                          -- FAIL
+local function 1                        -- FAIL
+local function end                      -- FAIL
+local function a                        -- FAIL
+local function a end                    -- FAIL
+local function a( end                   -- FAIL
+local function a() end
+local function a(1                      -- FAIL
+local function a("foo"                  -- FAIL
+local function a(p                      -- FAIL
+local function a(p,)                    -- FAIL
+local function a(p q                    -- FAIL
+local function a(p) end
+local function a(p,q,) end              -- FAIL
+local function a(p,q,r) end
+local function a(p,q,1                  -- FAIL
+local function a(p) do                  -- FAIL
+local function a(p) 1 end               -- FAIL
+local function a(p) return end
+local function a(p) break end           -- FAIL
+local function a(p) return return end   -- FAIL
+local function a(p) do end end
+local function a.                       -- FAIL
+local function a:                       -- FAIL
+local function a(...) end
+local function a(...,                   -- FAIL
+local function a(p,...) end
+local function a(p,q,r,...) end
+local function a() local a local b end
+local function a() local a; local b; end
+local function a() end; local function a() end;
+  --------------------------------------------------------------------
+  -- stat -> exprstat
+  -- exprstat -> primaryexp
+  --         (-> func | assignment)
+  -- * if LHS is VCALL then func, otherwise assignment
+  -- * for func, LHS is VCALL if funcargs in expression
+  --------------------------------------------------------------------
+  TESTS: assignments
+  --------------------------------------------------------------------
+  -- assignment -> ',' primaryexp assignment
+  --             | '=' explist1
+  -- explist1 -> expr { ',' expr }
+  -- * for assignment, LHS must be LOCAL, UPVAL, GLOBAL or INDEXED
+  --------------------------------------------------------------------
+a                                       -- FAIL
+a,                                      -- FAIL
+a,b,c                                   -- FAIL
+a,b =                                   -- FAIL
+a = 1
+a = 1,2,3
+a,b,c = 1
+a,b,c = 1,2,3
+a.b = 1
+a.b.c = 1
+a[b] = 1
+a[b][c] = 1
+a.b[c] = 1
+a[b].c = 1
+0 =                                     -- FAIL
+"foo" =                                 -- FAIL
+true =                                  -- FAIL
+(a) =                                   -- FAIL
+{} =                                    -- FAIL
+a:b() =                                 -- FAIL
+a() =                                   -- FAIL
+a.b:c() =                               -- FAIL
+a[b]() =                                -- FAIL
+a = a b                                 -- FAIL
+a = 1 2                                 -- FAIL
+a = a = 1                               -- FAIL
+  --------------------------------------------------------------------
+  TESTS: function calls
+  --------------------------------------------------------------------
+  -- primaryexp -> prefixexp { '.' NAME | '[' exp ']' | ':' NAME funcargs | funcargs }
+  -- prefixexp -> NAME | '(' expr ')'
+  -- funcargs -> '(' [ explist1 ] ')' | constructor | STRING
+  -- * funcargs turn an expr into a function call
+  --------------------------------------------------------------------
+a(                                      -- FAIL
+a()
+a(1)
+a(1,)                                   -- FAIL
+a(1,2,3)
+1()                                     -- FAIL
+a()()
+a.b()
+a[b]()
+a.1                                     -- FAIL
+a.b                                     -- FAIL
+a[b]                                    -- FAIL
+a.b.(                                   -- FAIL
+a.b.c()
+a[b][c]()
+a[b].c()
+a.b[c]()
+a:b()
+a:b                                     -- FAIL
+a:1                                     -- FAIL
+a.b:c()
+a[b]:c()
+a:b:                                    -- FAIL
+a:b():c()
+a:b().c[d]:e()
+a:b()[c].d:e()
+(a)()
+()()                                    -- FAIL
+(1)()
+("foo")()
+(true)()
+(a)()()
+(a.b)()
+(a[b])()
+(a).b()
+(a)[b]()
+(a):b()
+(a).b[c]:d()
+(a)[b].c:d()
+(a):b():c()
+(a):b().c[d]:e()
+(a):b()[c].d:e()
+  --------------------------------------------------------------------
+  TESTS: more function calls
+  --------------------------------------------------------------------
+a"foo"
+a[[foo]]
+a.b"foo"
+a[b]"foo"
+a:b"foo"
+a{}
+a.b{}
+a[b]{}
+a:b{}
+a()"foo"
+a"foo"()
+a"foo".b()
+a"foo"[b]()
+a"foo":c()
+a"foo""bar"
+a"foo"{}
+(a):b"foo".c[d]:e"bar"
+(a):b"foo"[c].d:e"bar"
+a(){}
+a{}()
+a{}.b()
+a{}[b]()
+a{}:c()
+a{}"foo"
+a{}{}
+(a):b{}.c[d]:e{}
+(a):b{}[c].d:e{}
+  --------------------------------------------------------------------
+  TESTS: simple expressions
+  --------------------------------------------------------------------
+  -- simpleexp -> NUMBER | STRING | NIL | TRUE | FALSE
+  --            | constructor | FUNCTION body | primaryexp
+  --------------------------------------------------------------------
+a =                                     -- FAIL
+a = a
+a = nil
+a = false
+a = 1
+a = "foo"
+a = [[foo]]
+a = {}
+a = (a)
+a = (nil)
+a = (true)
+a = (1)
+a = ("foo")
+a = ([[foo]])
+a = ({})
+a = a.b
+a = a.b.                                -- FAIL
+a = a.b.c
+a = a:b                                 -- FAIL
+a = a[b]
+a = a[1]
+a = a["foo"]
+a = a[b][c]
+a = a.b[c]
+a = a[b].c
+a = (a)[b]
+a = (a).c
+a = ()                                  -- FAIL
+a = a()
+a = a.b()
+a = a[b]()
+a = a:b()
+a = (a)()
+a = (a).b()
+a = (a)[b]()
+a = (a):b()
+a = a"foo"
+a = a{}
+a = function                            -- FAIL
+a = function 1                          -- FAIL
+a = function a                          -- FAIL
+a = function end                        -- FAIL
+a = function(                           -- FAIL
+a = function() end
+a = function(1                          -- FAIL
+a = function(p) end
+a = function(p,)                        -- FAIL
+a = function(p q                        -- FAIL
+a = function(p,q,r) end
+a = function(p,q,1                      -- FAIL
+a = function(...) end
+a = function(...,                       -- FAIL
+a = function(p,...) end
+a = function(p,q,r,...) end
+  --------------------------------------------------------------------
+  TESTS: operators
+  --------------------------------------------------------------------
+  -- expr -> subexpr
+  -- subexpr -> (UNOPR subexpr | simpleexp) { BINOPR subexpr }
+  -- simpleexp -> NUMBER | STRING | NIL | TRUE | FALSE
+  --            | constructor | FUNCTION body | primaryexp
+  --------------------------------------------------------------------
+a = -10
+a = -"foo"
+a = -a
+a = -nil
+a = -true
+a = -{}
+a = -function() end
+a = -a()
+a = -(a)
+a = -                                   -- FAIL
+a = not 10
+a = not "foo"
+a = not a
+a = not nil
+a = not true
+a = not {}
+a = not function() end
+a = not a()
+a = not (a)
+a = not                                 -- FAIL
+a = 1 + 2; a = 1 - 2
+a = 1 * 2; a = 1 / 2
+a = 1 ^ 2; a = 1 .. 2
+a = 1 +                                 -- FAIL
+a = 1 ..                                -- FAIL
+a = 1 * /                               -- FAIL
+a = 1 + -2; a = 1 - -2
+a = 1 * -                               -- FAIL
+a = 1 * not 2; a = 1 / not 2
+a = 1 / not                             -- FAIL
+a = 1 + 2 - 3 * 4 / 5 ^ 6
+a = ((1 + 2) - 3) * (4 / (5 ^ 6))
+a = (1 + (2 - (3 * (4 / (5 ^ ((6)))))))
+a = ((1                                 -- FAIL
+a = ((1 + 2)                            -- FAIL
+a = 1)                                  -- FAIL
+a = a + b - c
+a = "foo" + "bar"
+a = "foo".."bar".."baz"
+a = true + false - nil
+a = {} * {}
+a = function() end / function() end
+a = a() ^ b()
+  --------------------------------------------------------------------
+  TESTS: more operators
+  --------------------------------------------------------------------
+a = 1 == 2; a = 1 ~= 2
+a = 1 < 2; a = 1 <= 2
+a = 1 > 2; a = 1 >= 2
+a = 1 < 2 < 3
+a = 1 >= 2 >= 3
+a = 1 ==                                -- FAIL
+a = ~= 2                                -- FAIL
+a = "foo" == "bar"
+a = "foo" > "bar"
+a = a ~= b
+a = true == false
+a = 1 and 2; a = 1 or 2
+a = 1 and                               -- FAIL
+a = or 1                                -- FAIL
+a = 1 and 2 and 3
+a = 1 or 2 or 3
+a = 1 and 2 or 3
+a = a and b or c
+a = a() and (b)() or c.d
+a = "foo" and "bar"
+a = true or false
+a = {} and {} or {}
+a = (1) and ("foo") or (nil)
+a = function() end == function() end
+a = function() end or function() end
+  --------------------------------------------------------------------
+  TESTS: constructors
+  --------------------------------------------------------------------
+  -- constructor -> '{' [ field { fieldsep field } [ fieldsep ] ] '}'
+  -- fieldsep -> ',' | ';'
+  -- field -> recfield | listfield
+  -- recfield -> ( NAME | '[' exp1 ']' ) = exp1
+  -- listfield -> expr
+  --------------------------------------------------------------------
+a = {                                   -- FAIL
+a = {}
+a = {,}                                 -- FAIL
+a = {;}
+a = {,,}                                -- FAIL
+a = {;;}                                -- FAIL
+a = {{                                  -- FAIL
+a = {{{}}}
+a = {{},{},{{}},}
+a = { 1 }
+a = { 1, }
+a = { 1; }
+a = { 1, 2 }
+a = { a, b, c, }
+a = { true; false, nil; }
+a = { a.b, a[b]; a:c(), }
+a = { 1 + 2, a > b, "a" or "b" }
+a = { a=1, }
+a = { a=1, b="foo", c=nil }
+a = { a                                 -- FAIL
+a = { a=                                -- FAIL
+a = { a=,                               -- FAIL
+a = { a=;                               -- FAIL
+a = { 1, a="foo"                        -- FAIL
+a = { 1, a="foo"; b={}, d=true; }
+a = { [                                 -- FAIL
+a = { [1                                -- FAIL
+a = { [1]                               -- FAIL
+a = { [a]=                              -- FAIL
+a = { ["foo"]="bar" }
+a = { [1]=a, [2]=b, }
+a = { true, a=1; ["foo"]="bar", }
+]]
+
+-- end of script
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/test_parser-5.1.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/test_parser-5.1.lua
new file mode 100644
index 0000000..0809652
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/test_parser-5.1.lua
@@ -0,0 +1,783 @@
+--[[--------------------------------------------------------------------
+
+  test_parser-5.1.lua
+  Lua 5.1.x parser test cases
+  This file is part of Yueliang.
+
+  Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- Notes:
+-- * there is no intention of properly specifying a grammar; the notes
+--   are meant to reflect the structure of lparser so that it is easy
+--   to locate and modify lparser if so desired
+-- * some test may have invalid expressions but will compile, this
+--   is because the chunk hasn't been executed yet
+--
+-- Changed in 5.1.x:
+-- * added ..., %, # cases
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- lparser parsing structure, the Lua 5.1.x version...
+----------------------------------------------------------------------]]
+  --------------------------------------------------------------------
+  -- chunk -> { stat [';'] }
+  --------------------------------------------------------------------
+  -- stat -> DO block END
+  -- block -> chunk
+  --------------------------------------------------------------------
+  -- stat -> breakstat
+  -- breakstat -> BREAK
+  -- * must have a loop to break
+  -- * must be last statement in a block
+  --------------------------------------------------------------------
+  -- stat -> retstat
+  -- retstat -> RETURN explist
+  -- * must be last statement in a block
+  --------------------------------------------------------------------
+  -- stat -> exprstat
+  -- exprstat -> primaryexp
+  --         (-> func | assignment)
+  -- * if LHS is VCALL then func, otherwise assignment
+  -- * for func, LHS is VCALL if funcargs in expression
+  --------------------------------------------------------------------
+  -- stat -> funcstat
+  -- funcstat -> FUNCTION funcname body
+  -- funcname -> NAME {'.' NAME} [':' NAME]
+  --------------------------------------------------------------------
+  -- body ->  '(' parlist ')' chunk END
+  -- parlist -> [ param { ',' param } ]
+  -- param -> NAME
+  -- * DOTS must be the last parameter in a parlist
+  --------------------------------------------------------------------
+  -- stat -> LOCAL localstat
+  -- LOCAL localstat -> LOCAL NAME {',' NAME} ['=' explist1]
+  -- explist1 -> expr { ',' expr }
+  --------------------------------------------------------------------
+  -- stat -> LOCAL FUNCTION localfunc
+  -- LOCAL FUNCTION localfunc -> LOCAL FUNCTION NAME body
+  --------------------------------------------------------------------
+  -- stat -> ifstat
+  -- ifstat -> IF cond THEN block
+  --           {ELSEIF cond THEN block}
+  --           [ELSE block] END
+  -- block -> chunk
+  -- cond -> expr
+  --------------------------------------------------------------------
+  -- stat -> forstat
+  -- forstat -> fornum | forlist
+  -- forlist -> NAME {,NAME} IN explist1 forbody END
+  -- fornum -> NAME = exp1,exp1[,exp1] forbody END
+  -- forbody -> DO block
+  -- block -> chunk
+  --------------------------------------------------------------------
+  -- stat -> whilestat
+  -- whilestat -> WHILE cond DO block END
+  -- block -> chunk
+  -- cond -> expr
+  --------------------------------------------------------------------
+  -- stat -> repeatstat
+  -- repeatstat -> REPEAT chunk UNTIL cond
+  -- cond -> expr
+  --------------------------------------------------------------------
+  -- assignment -> ',' primaryexp assignment
+  --             | '=' explist1
+  -- explist1 -> expr { ',' expr }
+  -- * for assignment, LHS must be LOCAL, UPVAL, GLOBAL or INDEXED
+  --------------------------------------------------------------------
+  -- primaryexp -> prefixexp { '.' NAME | '[' exp ']' | ':' NAME funcargs | funcargs }
+  -- prefixexp -> NAME | '(' expr ')'
+  -- funcargs -> '(' [ explist1 ] ')' | constructor | STRING
+  -- * funcargs turn an expr into a function call
+  --------------------------------------------------------------------
+  -- expr -> subexpr
+  -- subexpr -> (UNOPR subexpr | simpleexp) { BINOPR subexpr }
+  -- simpleexp -> NUMBER | STRING | NIL | TRUE | FALSE | ...
+  --            | constructor | FUNCTION body | primaryexp
+  --------------------------------------------------------------------
+  -- constructor -> '{' [ field { fieldsep field } [ fieldsep ] ] '}'
+  -- fieldsep -> ',' | ';'
+  -- field -> recfield | listfield
+  -- recfield -> ( NAME | '[' exp1 ']' ) = exp1
+  -- listfield -> expr
+  --------------------------------------------------------------------
+
+--[[--------------------------------------------------------------------
+-- parser test cases, Lua 5.1.x
+-- * uncomment string delimiter to enable syntax highlighting...
+-- * anything that matches "^%s*%-%-" is a comment
+-- * headings to display are "^%s*TESTS:%s*(.*)$"
+-- * FAIL test cases should match "%s*%-%-%s*FAIL%s*$"
+----------------------------------------------------------------------]]
+tests_source = [=[
+  --------------------------------------------------------------------
+  TESTS: empty chunks
+  --------------------------------------------------------------------
+  -- chunk -> { stat [';'] }
+  --------------------------------------------------------------------
+
+;                                       -- FAIL
+  --------------------------------------------------------------------
+  TESTS: optional semicolon, simple local statements
+  --------------------------------------------------------------------
+  -- stat -> LOCAL localstat
+  -- LOCAL localstat -> LOCAL NAME {',' NAME} ['=' explist1]
+  -- explist1 -> expr { ',' expr }
+  --------------------------------------------------------------------
+local                                   -- FAIL
+local;                                  -- FAIL
+local =                                 -- FAIL
+local end                               -- FAIL
+local a
+local a;
+local a, b, c
+local a; local b local c;
+local a = 1
+local a local b = a
+local a, b = 1, 2
+local a, b, c = 1, 2, 3
+local a, b, c = 1
+local a = 1, 2, 3
+local a, local                          -- FAIL
+local 1                                 -- FAIL
+local "foo"                             -- FAIL
+local a = local                         -- FAIL
+local a, b, =                           -- FAIL
+local a, b = 1, local                   -- FAIL
+local a, b = , local                    -- FAIL
+  --------------------------------------------------------------------
+  TESTS: simple DO blocks
+  --------------------------------------------------------------------
+  -- stat -> DO block END
+  -- block -> chunk
+  --------------------------------------------------------------------
+do                                      -- FAIL
+end                                     -- FAIL
+do end
+do ; end                                -- FAIL
+do 1 end                                -- FAIL
+do "foo" end                            -- FAIL
+do local a, b end
+do local a local b end
+do local a; local b; end
+do local a = 1 end
+do do end end
+do do end; end
+do do do end end end
+do do do end; end; end
+do do do return end end end
+do end do                               -- FAIL
+do end end                              -- FAIL
+do return end
+do return return end                    -- FAIL
+do break end                            -- FAIL
+  --------------------------------------------------------------------
+  TESTS: simple WHILE loops
+  --------------------------------------------------------------------
+  -- stat -> whilestat
+  -- whilestat -> WHILE cond DO block END
+  -- block -> chunk
+  -- cond -> expr
+  --------------------------------------------------------------------
+while                                   -- FAIL
+while do                                -- FAIL
+while =                                 -- FAIL
+while 1 do                              -- FAIL
+while 1 do end
+while 1 do local a end
+while 1 do local a local b end
+while 1 do local a; local b; end
+while 1 do 2 end                        -- FAIL
+while 1 do "foo" end                    -- FAIL
+while true do end
+while 1 do ; end                        -- FAIL
+while 1 do while                        -- FAIL
+while 1 end                             -- FAIL
+while 1 2 do                            -- FAIL
+while 1 = 2 do                          -- FAIL
+while 1 do return end
+while 1 do return return end            -- FAIL
+while 1 do do end end
+while 1 do do return end end
+while 1 do break end
+while 1 do break break end              -- FAIL
+while 1 do do break end end
+  --------------------------------------------------------------------
+  TESTS: simple REPEAT loops
+  --------------------------------------------------------------------
+  -- stat -> repeatstat
+  -- repeatstat -> REPEAT chunk UNTIL cond
+  -- cond -> expr
+  --------------------------------------------------------------------
+repeat                                  -- FAIL
+repeat until                            -- FAIL
+repeat until 0
+repeat until false
+repeat until local                      -- FAIL
+repeat end                              -- FAIL
+repeat 1                                -- FAIL
+repeat =                                -- FAIL
+repeat local a until 1
+repeat local a local b until 0
+repeat local a; local b; until 0
+repeat ; until 1                        -- FAIL
+repeat 2 until 1                        -- FAIL
+repeat "foo" until 1                    -- FAIL
+repeat return until 0
+repeat return return until 0            -- FAIL
+repeat break until 0
+repeat break break until 0              -- FAIL
+repeat do end until 0
+repeat do return end until 0
+repeat do break end until 0
+  --------------------------------------------------------------------
+  TESTS: simple FOR loops
+  --------------------------------------------------------------------
+  -- stat -> forstat
+  -- forstat -> fornum | forlist
+  -- forlist -> NAME {,NAME} IN explist1 forbody END
+  -- fornum -> NAME = exp1,exp1[,exp1] forbody END
+  -- forbody -> DO block
+  -- block -> chunk
+  --------------------------------------------------------------------
+for                                     -- FAIL
+for do                                  -- FAIL
+for end                                 -- FAIL
+for 1                                   -- FAIL
+for a                                   -- FAIL
+for true                                -- FAIL
+for a, in                               -- FAIL
+for a in                                -- FAIL
+for a do                                -- FAIL
+for a in do                             -- FAIL
+for a in b do                           -- FAIL
+for a in b end                          -- FAIL
+for a in b, do                          -- FAIL
+for a in b do end
+for a in b do local a local b end
+for a in b do local a; local b; end
+for a in b do 1 end                     -- FAIL
+for a in b do "foo" end                 -- FAIL
+for a b in                              -- FAIL
+for a, b, c in p do end
+for a, b, c in p, q, r do end
+for a in 1 do end
+for a in true do end
+for a in "foo" do end
+for a in b do break end
+for a in b do break break end           -- FAIL
+for a in b do return end
+for a in b do return return end         -- FAIL
+for a in b do do end end
+for a in b do do break end end
+for a in b do do return end end
+for =                                   -- FAIL
+for a =                                 -- FAIL
+for a, b =                              -- FAIL
+for a = do                              -- FAIL
+for a = 1, do                           -- FAIL
+for a = p, q, do                        -- FAIL
+for a = p q do                          -- FAIL
+for a = b do end                        -- FAIL
+for a = 1, 2, 3, 4 do end               -- FAIL
+for a = p, q do end
+for a = 1, 2 do end
+for a = 1, 2 do local a local b end
+for a = 1, 2 do local a; local b; end
+for a = 1, 2 do 3 end                   -- FAIL
+for a = 1, 2 do "foo" end               -- FAIL
+for a = p, q, r do end
+for a = 1, 2, 3 do end
+for a = p, q do break end
+for a = p, q do break break end         -- FAIL
+for a = 1, 2 do return end
+for a = 1, 2 do return return end       -- FAIL
+for a = p, q do do end end
+for a = p, q do do break end end
+for a = p, q do do return end end
+  --------------------------------------------------------------------
+  TESTS: break statement
+  --------------------------------------------------------------------
+  -- stat -> breakstat
+  -- breakstat -> BREAK
+  -- * must have a loop to break
+  -- * must be last statement in a block
+  --------------------------------------------------------------------
+break                                   -- FAIL
+  --------------------------------------------------------------------
+  TESTS: return statement
+  --------------------------------------------------------------------
+  -- stat -> retstat
+  -- retstat -> RETURN explist
+  -- * must be last statement in a block
+  --------------------------------------------------------------------
+return
+return;
+return return                           -- FAIL
+return 1
+return local                            -- FAIL
+return "foo"
+return 1,                               -- FAIL
+return 1,2,3
+return a,b,c,d
+return 1,2;
+return ...
+return 1,a,...
+  --------------------------------------------------------------------
+  TESTS: conditional statements
+  --------------------------------------------------------------------
+  -- stat -> ifstat
+  -- ifstat -> IF cond THEN block
+  --           {ELSEIF cond THEN block}
+  --           [ELSE block] END
+  -- block -> chunk
+  -- cond -> expr
+  --------------------------------------------------------------------
+if                                      -- FAIL
+elseif                                  -- FAIL
+else                                    -- FAIL
+then                                    -- FAIL
+if then                                 -- FAIL
+if 1                                    -- FAIL
+if 1 then                               -- FAIL
+if 1 else                               -- FAIL
+if 1 then else                          -- FAIL
+if 1 then elseif                        -- FAIL
+if 1 then end
+if 1 then local a end
+if 1 then local a local b end
+if 1 then local a; local b; end
+if 1 then else end
+if 1 then local a else local b end
+if 1 then local a; else local b; end
+if 1 then elseif 2                      -- FAIL
+if 1 then elseif 2 then                 -- FAIL
+if 1 then elseif 2 then end
+if 1 then local a elseif 2 then local b end
+if 1 then local a; elseif 2 then local b; end
+if 1 then elseif 2 then else end
+if 1 then else if 2 then end end
+if 1 then else if 2 then end            -- FAIL
+if 1 then break end                     -- FAIL
+if 1 then return end
+if 1 then return return end             -- FAIL
+if 1 then end; if 1 then end;
+  --------------------------------------------------------------------
+  TESTS: function statements
+  --------------------------------------------------------------------
+  -- stat -> funcstat
+  -- funcstat -> FUNCTION funcname body
+  -- funcname -> NAME {'.' NAME} [':' NAME]
+  --------------------------------------------------------------------
+  -- body ->  '(' parlist ')' chunk END
+  -- parlist -> [ param { ',' param } ]
+  -- param -> NAME
+  -- * DOTS must be the last parameter in a parlist
+  --------------------------------------------------------------------
+function                                -- FAIL
+function 1                              -- FAIL
+function end                            -- FAIL
+function a                              -- FAIL
+function a end                          -- FAIL
+function a( end                         -- FAIL
+function a() end
+function a(1                            -- FAIL
+function a("foo"                        -- FAIL
+function a(p                            -- FAIL
+function a(p,)                          -- FAIL
+function a(p q                          -- FAIL
+function a(p) end
+function a(p,q,) end                    -- FAIL
+function a(p,q,r) end
+function a(p,q,1                        -- FAIL
+function a(p) do                        -- FAIL
+function a(p) 1 end                     -- FAIL
+function a(p) return end
+function a(p) break end                 -- FAIL
+function a(p) return return end         -- FAIL
+function a(p) do end end
+function a.(                            -- FAIL
+function a.1                            -- FAIL
+function a.b() end
+function a.b,                           -- FAIL
+function a.b.(                          -- FAIL
+function a.b.c.d() end
+function a:                             -- FAIL
+function a:1                            -- FAIL
+function a:b() end
+function a:b:                           -- FAIL
+function a:b.                           -- FAIL
+function a.b.c:d() end
+function a(...) end
+function a(...,                         -- FAIL
+function a(p,...) end
+function a(p,q,r,...) end
+function a() local a local b end
+function a() local a; local b; end
+function a() end; function a() end;
+  --------------------------------------------------------------------
+  TESTS: local function statements
+  --------------------------------------------------------------------
+  -- stat -> LOCAL FUNCTION localfunc
+  -- LOCAL FUNCTION localfunc -> LOCAL FUNCTION NAME body
+  --------------------------------------------------------------------
+local function                          -- FAIL
+local function 1                        -- FAIL
+local function end                      -- FAIL
+local function a                        -- FAIL
+local function a end                    -- FAIL
+local function a( end                   -- FAIL
+local function a() end
+local function a(1                      -- FAIL
+local function a("foo"                  -- FAIL
+local function a(p                      -- FAIL
+local function a(p,)                    -- FAIL
+local function a(p q                    -- FAIL
+local function a(p) end
+local function a(p,q,) end              -- FAIL
+local function a(p,q,r) end
+local function a(p,q,1                  -- FAIL
+local function a(p) do                  -- FAIL
+local function a(p) 1 end               -- FAIL
+local function a(p) return end
+local function a(p) break end           -- FAIL
+local function a(p) return return end   -- FAIL
+local function a(p) do end end
+local function a.                       -- FAIL
+local function a:                       -- FAIL
+local function a(...) end
+local function a(...,                   -- FAIL
+local function a(p,...) end
+local function a(p,q,r,...) end
+local function a() local a local b end
+local function a() local a; local b; end
+local function a() end; local function a() end;
+  --------------------------------------------------------------------
+  -- stat -> exprstat
+  -- exprstat -> primaryexp
+  --         (-> func | assignment)
+  -- * if LHS is VCALL then func, otherwise assignment
+  -- * for func, LHS is VCALL if funcargs in expression
+  --------------------------------------------------------------------
+  TESTS: assignments
+  --------------------------------------------------------------------
+  -- assignment -> ',' primaryexp assignment
+  --             | '=' explist1
+  -- explist1 -> expr { ',' expr }
+  -- * for assignment, LHS must be LOCAL, UPVAL, GLOBAL or INDEXED
+  --------------------------------------------------------------------
+a                                       -- FAIL
+a,                                      -- FAIL
+a,b,c                                   -- FAIL
+a,b =                                   -- FAIL
+a = 1
+a = 1,2,3
+a,b,c = 1
+a,b,c = 1,2,3
+a.b = 1
+a.b.c = 1
+a[b] = 1
+a[b][c] = 1
+a.b[c] = 1
+a[b].c = 1
+0 =                                     -- FAIL
+"foo" =                                 -- FAIL
+true =                                  -- FAIL
+(a) =                                   -- FAIL
+{} =                                    -- FAIL
+a:b() =                                 -- FAIL
+a() =                                   -- FAIL
+a.b:c() =                               -- FAIL
+a[b]() =                                -- FAIL
+a = a b                                 -- FAIL
+a = 1 2                                 -- FAIL
+a = a = 1                               -- FAIL
+  --------------------------------------------------------------------
+  TESTS: function calls
+  --------------------------------------------------------------------
+  -- primaryexp -> prefixexp { '.' NAME | '[' exp ']' | ':' NAME funcargs | funcargs }
+  -- prefixexp -> NAME | '(' expr ')'
+  -- funcargs -> '(' [ explist1 ] ')' | constructor | STRING
+  -- * funcargs turn an expr into a function call
+  --------------------------------------------------------------------
+a(                                      -- FAIL
+a()
+a(1)
+a(1,)                                   -- FAIL
+a(1,2,3)
+1()                                     -- FAIL
+a()()
+a.b()
+a[b]()
+a.1                                     -- FAIL
+a.b                                     -- FAIL
+a[b]                                    -- FAIL
+a.b.(                                   -- FAIL
+a.b.c()
+a[b][c]()
+a[b].c()
+a.b[c]()
+a:b()
+a:b                                     -- FAIL
+a:1                                     -- FAIL
+a.b:c()
+a[b]:c()
+a:b:                                    -- FAIL
+a:b():c()
+a:b().c[d]:e()
+a:b()[c].d:e()
+(a)()
+()()                                    -- FAIL
+(1)()
+("foo")()
+(true)()
+(a)()()
+(a.b)()
+(a[b])()
+(a).b()
+(a)[b]()
+(a):b()
+(a).b[c]:d()
+(a)[b].c:d()
+(a):b():c()
+(a):b().c[d]:e()
+(a):b()[c].d:e()
+  --------------------------------------------------------------------
+  TESTS: more function calls
+  --------------------------------------------------------------------
+a"foo"
+a[[foo]]
+a.b"foo"
+a[b]"foo"
+a:b"foo"
+a{}
+a.b{}
+a[b]{}
+a:b{}
+a()"foo"
+a"foo"()
+a"foo".b()
+a"foo"[b]()
+a"foo":c()
+a"foo""bar"
+a"foo"{}
+(a):b"foo".c[d]:e"bar"
+(a):b"foo"[c].d:e"bar"
+a(){}
+a{}()
+a{}.b()
+a{}[b]()
+a{}:c()
+a{}"foo"
+a{}{}
+(a):b{}.c[d]:e{}
+(a):b{}[c].d:e{}
+  --------------------------------------------------------------------
+  TESTS: simple expressions
+  --------------------------------------------------------------------
+  -- simpleexp -> NUMBER | STRING | NIL | TRUE | FALSE | ...
+  --            | constructor | FUNCTION body | primaryexp
+  --------------------------------------------------------------------
+a =                                     -- FAIL
+a = a
+a = nil
+a = false
+a = 1
+a = "foo"
+a = [[foo]]
+a = {}
+a = (a)
+a = (nil)
+a = (true)
+a = (1)
+a = ("foo")
+a = ([[foo]])
+a = ({})
+a = a.b
+a = a.b.                                -- FAIL
+a = a.b.c
+a = a:b                                 -- FAIL
+a = a[b]
+a = a[1]
+a = a["foo"]
+a = a[b][c]
+a = a.b[c]
+a = a[b].c
+a = (a)[b]
+a = (a).c
+a = ()                                  -- FAIL
+a = a()
+a = a.b()
+a = a[b]()
+a = a:b()
+a = (a)()
+a = (a).b()
+a = (a)[b]()
+a = (a):b()
+a = a"foo"
+a = a{}
+a = function                            -- FAIL
+a = function 1                          -- FAIL
+a = function a                          -- FAIL
+a = function end                        -- FAIL
+a = function(                           -- FAIL
+a = function() end
+a = function(1                          -- FAIL
+a = function(p) end
+a = function(p,)                        -- FAIL
+a = function(p q                        -- FAIL
+a = function(p,q,r) end
+a = function(p,q,1                      -- FAIL
+a = function(...) end
+a = function(...,                       -- FAIL
+a = function(p,...) end
+a = function(p,q,r,...) end
+a = ...
+a = a, b, ...
+a = (...)
+a = ..., 1, 2
+a = function() return ... end           -- FAIL
+  --------------------------------------------------------------------
+  TESTS: operators
+  --------------------------------------------------------------------
+  -- expr -> subexpr
+  -- subexpr -> (UNOPR subexpr | simpleexp) { BINOPR subexpr }
+  -- simpleexp -> NUMBER | STRING | NIL | TRUE | FALSE | ...
+  --            | constructor | FUNCTION body | primaryexp
+  --------------------------------------------------------------------
+a = -10
+a = -"foo"
+a = -a
+a = -nil
+a = -true
+a = -{}
+a = -function() end
+a = -a()
+a = -(a)
+a = -                                   -- FAIL
+a = not 10
+a = not "foo"
+a = not a
+a = not nil
+a = not true
+a = not {}
+a = not function() end
+a = not a()
+a = not (a)
+a = not                                 -- FAIL
+a = #10
+a = #"foo"
+a = #a
+a = #nil
+a = #true
+a = #{}
+a = #function() end
+a = #a()
+a = #(a)
+a = #                                   -- FAIL
+a = 1 + 2; a = 1 - 2
+a = 1 * 2; a = 1 / 2
+a = 1 ^ 2; a = 1 % 2
+a = 1 .. 2
+a = 1 +                                 -- FAIL
+a = 1 ..                                -- FAIL
+a = 1 * /                               -- FAIL
+a = 1 + -2; a = 1 - -2
+a = 1 * -                               -- FAIL
+a = 1 * not 2; a = 1 / not 2
+a = 1 / not                             -- FAIL
+a = 1 * #"foo"; a = 1 / #"foo"
+a = 1 / #                               -- FAIL
+a = 1 + 2 - 3 * 4 / 5 % 6 ^ 7
+a = ((1 + 2) - 3) * (4 / (5 % 6 ^ 7))
+a = (1 + (2 - (3 * (4 / (5 % 6 ^ ((7)))))))
+a = ((1                                 -- FAIL
+a = ((1 + 2)                            -- FAIL
+a = 1)                                  -- FAIL
+a = a + b - c
+a = "foo" + "bar"
+a = "foo".."bar".."baz"
+a = true + false - nil
+a = {} * {}
+a = function() end / function() end
+a = a() ^ b()
+a = ... % ...
+  --------------------------------------------------------------------
+  TESTS: more operators
+  --------------------------------------------------------------------
+a = 1 == 2; a = 1 ~= 2
+a = 1 < 2; a = 1 <= 2
+a = 1 > 2; a = 1 >= 2
+a = 1 < 2 < 3
+a = 1 >= 2 >= 3
+a = 1 ==                                -- FAIL
+a = ~= 2                                -- FAIL
+a = "foo" == "bar"
+a = "foo" > "bar"
+a = a ~= b
+a = true == false
+a = 1 and 2; a = 1 or 2
+a = 1 and                               -- FAIL
+a = or 1                                -- FAIL
+a = 1 and 2 and 3
+a = 1 or 2 or 3
+a = 1 and 2 or 3
+a = a and b or c
+a = a() and (b)() or c.d
+a = "foo" and "bar"
+a = true or false
+a = {} and {} or {}
+a = (1) and ("foo") or (nil)
+a = function() end == function() end
+a = function() end or function() end
+  --------------------------------------------------------------------
+  TESTS: constructors
+  --------------------------------------------------------------------
+  -- constructor -> '{' [ field { fieldsep field } [ fieldsep ] ] '}'
+  -- fieldsep -> ',' | ';'
+  -- field -> recfield | listfield
+  -- recfield -> ( NAME | '[' exp1 ']' ) = exp1
+  -- listfield -> expr
+  --------------------------------------------------------------------
+a = {                                   -- FAIL
+a = {}
+a = {,}                                 -- FAIL
+a = {;}                                 -- FAIL
+a = {,,}                                -- FAIL
+a = {;;}                                -- FAIL
+a = {{                                  -- FAIL
+a = {{{}}}
+a = {{},{},{{}},}
+a = { 1 }
+a = { 1, }
+a = { 1; }
+a = { 1, 2 }
+a = { a, b, c, }
+a = { true; false, nil; }
+a = { a.b, a[b]; a:c(), }
+a = { 1 + 2, a > b, "a" or "b" }
+a = { a=1, }
+a = { a=1, b="foo", c=nil }
+a = { a                                 -- FAIL
+a = { a=                                -- FAIL
+a = { a=,                               -- FAIL
+a = { a=;                               -- FAIL
+a = { 1, a="foo"                        -- FAIL
+a = { 1, a="foo"; b={}, d=true; }
+a = { [                                 -- FAIL
+a = { [1                                -- FAIL
+a = { [1]                               -- FAIL
+a = { [a]=                              -- FAIL
+a = { ["foo"]="bar" }
+a = { [1]=a, [2]=b, }
+a = { true, a=1; ["foo"]="bar", }
+]=]
+
+-- end of script
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/test_scripts-5.0.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/test_scripts-5.0.lua
new file mode 100644
index 0000000..53a3ae3
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/test_scripts-5.0.lua
@@ -0,0 +1,158 @@
+--[[--------------------------------------------------------------------
+
+  test_scripts-5.0.lua
+  Compile and compare Lua files
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2007 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- NOTE
+-- * use the argument ALL to pull in additional personal Lua scripts
+--   for testing, e.g. lua test_scripts.lua ALL
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- reads in a list of files to crunch from a text file
+------------------------------------------------------------------------
+
+local function loadlist(fname, flist)
+  local inf = io.open(fname, "r")
+  if not inf then error("cannot open "..fname.." for reading") end
+  while true do
+    local d = inf:read("*l")
+    if not d then break end
+    if string.find(d, "^%s*$") or string.find(d, "^#") then
+      -- comments and empty lines are ignored
+    else
+      table.insert(flist, d)
+    end
+  end
+  inf:close()
+end
+
+------------------------------------------------------------------------
+-- read in list of files to test
+------------------------------------------------------------------------
+
+local files = {}
+
+loadlist("files-lua-5.0.txt", files)
+loadlist("files-yueliang-5.0.txt", files)
+
+-- pull in personal scripts to test if user specifies "ALL"
+if arg[1] == "ALL" then
+  loadlist("files-other-5.0.txt", files)
+end
+
+-- if you want to specify files in this script itself (not recommended)
+-- you can add them using the following
+--[[
+for v in string.gfind([[
+]], "[^%s]+") do
+  table.insert(files, v)
+end
+--]]
+
+total = 0  -- sum of sizes
+fsize = 0  -- current file size
+
+------------------------------------------------------------------------
+-- initialize
+------------------------------------------------------------------------
+
+require("../orig-5.0.3/lzio")
+require("../orig-5.0.3/llex")
+require("../orig-5.0.3/lopcodes")
+require("../orig-5.0.3/ldump")
+require("../orig-5.0.3/lcode")
+require("../orig-5.0.3/lparser")
+
+function lua_assert(test)
+  if not test then error("assertion failed!") end
+end
+
+luaX:init()
+
+io.stdout:write("\n\n")
+
+------------------------------------------------------------------------
+-- * basic comparison for now; do it properly later
+------------------------------------------------------------------------
+
+local LuaState = {}
+
+------------------------------------------------------------------------
+-- dump binary chunks to a file if something goes wrong
+------------------------------------------------------------------------
+local function Dump(data, filename)
+  h = io.open(filename, "wb")
+  if not h then error("failed to open "..filename.." for writing") end
+  h:write(data)
+  h:close()
+end
+
+------------------------------------------------------------------------
+-- create custom chunk reader (sums up file sizes)
+------------------------------------------------------------------------
+function make_getF(filename)
+  local h = io.open(filename, "r")
+  if not h then return nil end
+  fsize = h:seek("end")
+  h:seek("set")
+  total = total + fsize
+  return function() -- chunk reader anonymous function here
+    if not h then return nil end
+    local buff = h:read(512)
+    if not buff then h:close() end
+    return buff
+  end
+end
+
+------------------------------------------------------------------------
+-- attempt to compile Lua source files
+------------------------------------------------------------------------
+for i, filename in ipairs(files) do
+  -- compile a source file
+  local zio = luaZ:init(make_getF(filename), nil, "@"..filename)
+  if not zio then
+    error("could not initialize zio stream for "..filename)
+  end
+  io.stdout:write(filename.."("..fsize.."): ")
+  local Func = luaY:parser(LuaState, zio, nil)
+  local Writer, Buff = luaU:make_setS()
+  luaU:dump(LuaState, Func, Writer, Buff)
+  local bc1 = Buff.data  -- Yueliang's output
+
+  local f = loadfile(filename)
+  local bc2 = string.dump(f)  -- Lua's output
+
+  -- compare outputs
+  if string.len(bc1) ~= string.len(bc2) then
+    Dump(bc1, "bc1.out")
+    Dump(bc2, "bc2.out")
+    error("binary chunk sizes different")
+  elseif bc1 ~= bc2 then
+    Dump(bc1, "bc1.out")
+    Dump(bc2, "bc2.out")
+    error("binary chunks different")
+  else
+    io.stdout:write("CORRECT\n")
+  end
+  local x, y = gcinfo()
+  -- memory usage isn't really a problem for the straight port
+  -- string handling in Lua that follows the original C closely is more
+  -- of a problem, but this will be fixed elsewhere, not in this tree
+  --io.stdout:write("gcinfo: "..x.." "..y.."\n")
+end
+
+-- summaries here
+io.stdout:write("\nTotal file sizes: "..total.."\n")
+
+-- end
diff --git a/LuaSL/testLua/yueliang-0.4.1/test_lua/test_scripts-5.1.lua b/LuaSL/testLua/yueliang-0.4.1/test_lua/test_scripts-5.1.lua
new file mode 100644
index 0000000..4d84055
--- /dev/null
+++ b/LuaSL/testLua/yueliang-0.4.1/test_lua/test_scripts-5.1.lua
@@ -0,0 +1,158 @@
+--[[--------------------------------------------------------------------
+
+  test_scripts-5.1.lua
+  Compile and compare Lua files
+  This file is part of Yueliang.
+
+  Copyright (c) 2005-2007 Kein-Hong Man <khman@users.sf.net>
+  The COPYRIGHT file describes the conditions
+  under which this software may be distributed.
+
+  See the ChangeLog for more information.
+
+----------------------------------------------------------------------]]
+
+--[[--------------------------------------------------------------------
+-- NOTE
+-- * use the argument ALL to pull in additional personal Lua scripts
+--   for testing, e.g. lua test_scripts.lua ALL
+----------------------------------------------------------------------]]
+
+------------------------------------------------------------------------
+-- reads in a list of files to crunch from a text file
+------------------------------------------------------------------------
+
+local function loadlist(fname, flist)
+  local inf = io.open(fname, "r")
+  if not inf then error("cannot open "..fname.." for reading") end
+  while true do
+    local d = inf:read("*l")
+    if not d then break end
+    if string.match(d, "^%s*$") or string.match(d, "^#") then
+      -- comments and empty lines are ignored
+    else
+      flist[#flist+1] = d
+    end
+  end
+  inf:close()
+end
+
+------------------------------------------------------------------------
+-- read in list of files to test
+------------------------------------------------------------------------
+
+local files = {}
+
+loadlist("files-lua-5.1.txt", files)
+loadlist("files-yueliang-5.1.txt", files)
+
+-- pull in personal scripts to test if user specifies "ALL"
+if arg[1] == "ALL" then
+  loadlist("files-other-5.1.txt", files)
+end
+
+-- if you want to specify files in this script itself (not recommended)
+-- you can add them using the following
+--[=[
+for v in string.gmatch([[
+]], "[^%s]+") do
+  table.insert(files, v)
+end
+--]=]
+
+total = 0  -- sum of sizes
+fsize = 0  -- current file size
+
+------------------------------------------------------------------------
+-- initialize
+------------------------------------------------------------------------
+
+dofile("../orig-5.1.2/lzio.lua")
+dofile("../orig-5.1.2/llex.lua")
+dofile("../orig-5.1.2/lopcodes.lua")
+dofile("../orig-5.1.2/ldump.lua")
+dofile("../orig-5.1.2/lcode.lua")
+dofile("../orig-5.1.2/lparser.lua")
+
+function lua_assert(test)
+  if not test then error("assertion failed!") end
+end
+
+luaX:init()
+
+io.stdout:write("\n\n")
+
+------------------------------------------------------------------------
+-- * basic comparison for now; do it properly later
+------------------------------------------------------------------------
+
+local LuaState = {}
+
+------------------------------------------------------------------------
+-- dump binary chunks to a file if something goes wrong
+------------------------------------------------------------------------
+local function Dump(data, filename)
+  h = io.open(filename, "wb")
+  if not h then error("failed to open "..filename.." for writing") end
+  h:write(data)
+  h:close()
+end
+
+------------------------------------------------------------------------
+-- create custom chunk reader (sums up file sizes)
+------------------------------------------------------------------------
+function make_getF(filename)
+  local h = io.open(filename, "r")
+  if not h then return nil end
+  fsize = h:seek("end")
+  h:seek("set")
+  total = total + fsize
+  return function() -- chunk reader anonymous function here
+    if not h then return nil end
+    local buff = h:read(512)
+    if not buff then h:close() end
+    return buff
+  end
+end
+
+------------------------------------------------------------------------
+-- attempt to compile Lua source files
+------------------------------------------------------------------------
+for i, filename in ipairs(files) do
+  -- compile a source file
+  local zio = luaZ:init(make_getF(filename), nil)
+  if not zio then
+    error("could not initialize zio stream for "..filename)
+  end
+  io.stdout:write(filename.."("..fsize.."): ")
+  local Func = luaY:parser(LuaState, zio, nil, "@"..filename)
+  local Writer, Buff = luaU:make_setS()
+  luaU:dump(LuaState, Func, Writer, Buff)
+  local bc1 = Buff.data  -- Yueliang's output
+
+  local f = loadfile(filename)
+  local bc2 = string.dump(f)  -- Lua's output
+
+  -- compare outputs
+  if #bc1 ~= #bc2 then
+    Dump(bc1, "bc1.out")
+    Dump(bc2, "bc2.out")
+    error("binary chunk sizes different")
+  elseif bc1 ~= bc2 then
+    Dump(bc1, "bc1.out")
+    Dump(bc2, "bc2.out")
+    error("binary chunks different")
+  else
+    io.stdout:write("CORRECT\n")
+  end
+  local x = collectgarbage("count")
+  -- memory usage isn't really a problem for the straight port
+  -- string handling in Lua that follows the original C closely is more
+  -- of a problem, but this will be fixed elsewhere, not in this tree
+  --io.stdout:write("collectgarbage: "..x.."\n")
+end
+
+-- summaries here
+io.stdout:write("\nTotal file sizes: "..total.."\n")
+
+-- end