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using System;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;
namespace LSL2CS.Converter
{
public class LSL2CSConverter
{
//private Regex rnw = new Regex(@"[a-zA-Z0-9_\-]", RegexOptions.Compiled);
private Dictionary<string, string> DataTypes = new Dictionary<string, string>();
private Dictionary<string, string> QUOTES = new Dictionary<string, string>();
public LSL2CSConverter()
{
DataTypes.Add("void", "void");
DataTypes.Add("integer", "int");
DataTypes.Add("float", "float");
DataTypes.Add("string", "string");
DataTypes.Add("key", "string");
DataTypes.Add("vector", "vector");
DataTypes.Add("rotation", "rotation");
DataTypes.Add("list", "list");
DataTypes.Add("null", "null");
}
public string Convert(string Script)
{
string Return = "";
//
// Prepare script for processing
//
// Here we will remove those linebreaks that are allowed in so many languages.
// One hard-ass regex should do the job.
// Then we will add some linebreaks.
Script = Regex.Replace(Script, @"\r\n", "\n");
Script = Regex.Replace(Script, @"\n", "\r\n");
//Script = Regex.Replace(Script, @"\n\s*{", @"{");
//Script = Regex.Replace(Script, @"[\r\n]", @"");
// Then we remove unwanted linebreaks
////
//// Split up script to process line by line
////
//int count = 0;
//string line;
//Regex r = new Regex("\r?\n", RegexOptions.Multiline | RegexOptions.Compiled);
//string[] lines = r.Split(Script);
//for (int i = 0; i < lines.Length; i++)
//{
// // Remove space in front and back
// line = lines[i].Trim();
// count++;
// Return += count + ". " + translate(line) + "\r\n";
//}
// QUOTE REPLACEMENT
//char[] SA = Script.ToCharArray();
string _Script = "";
string C;
bool in_quote = false;
bool quote_replaced = false;
string quote_replacement_string = "Q_U_O_T_E_REPLACEMENT_";
string quote = "";
bool last_was_escape = false;
int quote_replaced_count = 0;
for (int p = 0; p < Script.Length; p++)
{
C = Script.Substring(p, 1);
while (true)
{
if (C == "\"" && last_was_escape == false)
{
// Toggle inside/outside quote
in_quote = !in_quote;
if (in_quote)
{
quote_replaced_count++;
}
else
{
// We just left a quote
QUOTES.Add(quote_replacement_string + quote_replaced_count.ToString().PadLeft(5, "0".ToCharArray()[0]), quote);
quote = "";
}
break;
}
if (!in_quote)
{
// We are not inside a quote
quote_replaced = false;
}
else
{
// We are inside a quote
if (!quote_replaced)
{
// Replace quote
_Script += quote_replacement_string + quote_replaced_count.ToString().PadLeft(5, "0".ToCharArray()[0]);
quote_replaced = true;
}
quote += C;
break;
}
_Script += C;
break;
}
last_was_escape = false;
if (C == @"\")
{
last_was_escape = true;
}
}
Script = _Script;
//
// END OF QUOTE REPLACEMENT
//
// PROCESS STATES
int ilevel = 0;
int lastlevel = 0;
string ret = "";
string cache = "";
bool in_state = false;
string current_statename = "";
for (int p = 0; p < Script.Length; p++)
{
C = Script.Substring(p, 1);
while (true)
{
// inc / dec level
if (C == @"{")
ilevel++;
if (C == @"}")
ilevel--;
if (ilevel < 0)
ilevel = 0;
cache += C;
// if level == 0, add to return
if (ilevel == 1 && lastlevel == 0)
{
// 0 => 1: Get last
Match m = Regex.Match(cache, @"(?![a-zA-Z_]+)\s*([a-zA-Z_]+)[^a-zA-Z_\(\)]*{", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
in_state = false;
if (m.Success)
{
// Go back to level 0, this is not a state
in_state = true;
current_statename = m.Groups[1].Captures[0].Value;
Console.WriteLine("Current statename: " + current_statename);
cache = Regex.Replace(cache, @"(?![a-zA-Z_]+)\s*([a-zA-Z_]+)[^a-zA-Z_\(\)]*{", "", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
}
ret += cache;
cache = "";
}
if (ilevel == 0 && lastlevel == 1)
{
// 1 => 0: Remove last }
if (in_state == true)
{
cache = cache.Remove(cache.Length - 1, 1);
//cache = Regex.Replace(cache, "}$", "", RegexOptions.Multiline | RegexOptions.Singleline);
//Replace function names
// void dataserver(key query_id, string data) {
//cache = Regex.Replace(cache, @"([^a-zA-Z_]\s*)((?!if|switch|for)[a-zA-Z_]+\s*\([^\)]*\)[^{]*{)", "$1" + "<STATE>" + "$2", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
Console.WriteLine("Replacing using statename: " + current_statename);
cache = Regex.Replace(cache, @"^(\s*)((?!if|switch|for)[a-zA-Z0-9_]*\s*\([^\)]*\)[^;]*\{)", @"$1" + current_statename + "_$2", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
}
ret += cache;
cache = "";
in_state = true;
current_statename = "";
}
// if we moved from level 0 to level 1 don't add last word + {
// if we moved from level 1 to level 0 don't add last }
// if level > 0 cache all data so we can run regex on it when going to level 0
break;
}
lastlevel = ilevel;
}
ret += cache;
cache = "";
Script = ret;
ret = "";
// Replace CAST - (integer) with (int)
Script = Regex.Replace(Script, @"\(integer\)", @"(int)", RegexOptions.Compiled | RegexOptions.Multiline);
// Replace return types and function variables - integer a() and f(integer a, integer a)
Script = Regex.Replace(Script, @"(^|;|}|[\(,])(\s*int)eger(\s*)", @"$1$2$3", RegexOptions.Compiled | RegexOptions.Multiline);
// Add "void" in front of functions that needs it
Script = Regex.Replace(Script, @"^(\s*)((?!if|switch|for)[a-zA-Z0-9_]*\s*\([^\)]*\)[^;]*\{)", @"$1void $2", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
// Replace <x,y,z> and <x,y,z,r>
Script = Regex.Replace(Script, @"<([^,>]*,[^,>]*,[^,>]*,[^,>]*)>", @"Rotation.Parse($1)", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
Script = Regex.Replace(Script, @"<([^,>]*,[^,>]*,[^,>]*)>", @"Vector.Parse($1)", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
// Replace List []'s
Script = Regex.Replace(Script, @"\[([^\]]*)\]", @"List.Parse($1)", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
// Replace (string) to .ToString() //
Script = Regex.Replace(Script, @"\(string\)\s*([a-zA-Z0-9_]+(\s*\([^\)]*\))?)", @"$1.ToString()", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
Script = Regex.Replace(Script, @"\((float|int)\)\s*([a-zA-Z0-9_]+(\s*\([^\)]*\))?)", @"$1.Parse($2)", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
// REPLACE BACK QUOTES
foreach (string key in QUOTES.Keys)
{
string val;
QUOTES.TryGetValue(key, out val);
Script = Script.Replace(key, "\"" + val + "\"");
}
Return = "namespace SecondLife {" + Environment.NewLine;
Return += "public class Script : LSL_BaseClass {" + Environment.NewLine;
Return += Script;
Return += "} }" + Environment.NewLine;
return Return;
}
//private string GetWord(char[] SA, int p)
//{
// string ret = "";
// for (int i = p; p < SA.Length; i++)
// {
// if (!rnw.IsMatch(SA[i].ToString()))
// break;
// ret += SA[i];
// }
// return ret;
//}
}
}
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