* Applied patch from Melanie, mantis issue #1581 - "Refactor LSL language, api and compiler out of XEngine"

"First stage in a major Script Engine refactor, that will result in the LSL implementaions ebing reconverged. Not there yet, but one major part is done."
Thank you, Melanie!

1 files changed, 108 insertions, 0 deletions

diff --git a/OpenSim/Region/ScriptEngine/Shared/CodeTools/YP2CSConverter.cs b/OpenSim/Region/ScriptEngine/Shared/CodeTools/YP2CSConverter.cs
new file mode 100644
index 0000000..54b4861
--- /dev/null
+++ b/OpenSim/Region/ScriptEngine/Shared/CodeTools/YP2CSConverter.cs
@@ -0,0 +1,108 @@
+/*
+* Copyright (c) Contributors, http://opensimulator.org/
+* See CONTRIBUTORS.TXT for a full list of copyright holders.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*     * Redistributions of source code must retain the above copyright
+*       notice, this list of conditions and the following disclaimer.
+*     * Redistributions in binary form must reproduce the above copyright
+*       notice, this list of conditions and the following disclaimer in the
+*       documentation and/or other materials provided with the distribution.
+*     * Neither the name of the OpenSim Project nor the
+*       names of its contributors may be used to endorse or promote products
+*       derived from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS AS IS AND ANY
+* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*
+*/
+
+using System;
+using System.IO;
+using System.Collections.Generic;
+using System.Text;
+using System.Text.RegularExpressions;
+using OpenSim.Region.ScriptEngine.Shared.YieldProlog;
+
+namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
+{
+    public class YP2CSConverter
+    {
+        public YP2CSConverter()
+        {
+        }
+
+        public string Convert(string Script)
+        {
+            string CS_code = GenCode(Script);
+            return CS_code;
+        }
+
+        static string GenCode(string myCode)
+        {
+            Variable TermList = new Variable();
+            Variable FunctionCode = new Variable();
+
+            string CS_code = "";
+
+            int cs_pointer = myCode.IndexOf("\n//cs");
+            if (cs_pointer > 0)
+            {
+                CS_code = myCode.Substring(cs_pointer); // CS code comes after
+                myCode = myCode.Substring(0, cs_pointer);
+            }
+            myCode.Replace("//yp", "%YPCode");
+            
+            StringWriter myCS_SW = new StringWriter();
+            StringReader myCode_SR = new StringReader(" yp_nop_header_nop. \n "+myCode + "\n");
+
+            YP.see(myCode_SR);
+            YP.tell(myCS_SW);
+
+            //Console.WriteLine("Mycode\n ===================================\n" + myCode+"\n");
+            foreach (bool l1 in Parser.parseInput(TermList))
+            {
+                foreach (bool l2 in YPCompiler.makeFunctionPseudoCode(TermList, FunctionCode))
+                {
+                    ListPair VFC = new ListPair(FunctionCode, new Variable());
+                    //Console.WriteLine("-------------------------")
+                    //Console.WriteLine(FunctionCode.ToString())
+                    //Console.WriteLine("-------------------------")
+                    YPCompiler.convertFunctionCSharp(FunctionCode);
+                    //YPCompiler.convertStringCodesCSharp(VFC);
+                }
+            }
+            YP.seen();
+            myCS_SW.Close();
+            YP.told();
+            StringBuilder bu = myCS_SW.GetStringBuilder();
+            string finalcode = "//YPEncoded\n" + bu.ToString();
+            // FIX script events (we're in the same script)
+            // 'YP.script_event(Atom.a(@"sayit"),' ==> 'sayit('
+            finalcode = Regex.Replace(finalcode,
+                                        @"YP.script_event\(Atom.a\(\@\""(.*?)""\)\,",
+                                        @"this.$1(",
+                                        RegexOptions.Compiled | RegexOptions.Singleline);
+            finalcode = Regex.Replace(finalcode,
+                            @" static ",
+                            @" ",
+                            RegexOptions.Compiled | RegexOptions.Singleline);
+
+            finalcode = CS_code+"\n\r"+ finalcode;
+            finalcode = Regex.Replace(finalcode,
+                                        @"PrologCallback",
+                                        @"public IEnumerable<bool> ",
+                                        RegexOptions.Compiled | RegexOptions.Singleline);
+            return finalcode;
+        }
+    }
+}