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https://github.com/opensim/opensim.git
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fcf7db7272
Changed "ObjectID" in ScriptEngine to IScriptHost reference. Events will now be queued based on IScriptHost reference instead of string ID of object. Removed "root" object reference in script.
245 lines
10 KiB
C#
245 lines
10 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Text.RegularExpressions;
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namespace OpenSim.Region.ScriptEngine.DotNetEngine.Compiler.LSL
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{
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public class LSL2CSConverter
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{
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//private Regex rnw = new Regex(@"[a-zA-Z0-9_\-]", RegexOptions.Compiled);
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private Dictionary<string, string> DataTypes = new Dictionary<string, string>();
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private Dictionary<string, string> QUOTES = new Dictionary<string, string>();
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public LSL2CSConverter()
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{
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DataTypes.Add("void", "void");
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DataTypes.Add("integer", "int");
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DataTypes.Add("float", "double");
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DataTypes.Add("string", "string");
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DataTypes.Add("key", "string");
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DataTypes.Add("vector", "Axiom.Math.Vector3");
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DataTypes.Add("rotation", "Axiom.Math.Quaternion");
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DataTypes.Add("list", "list");
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DataTypes.Add("null", "null");
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}
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public string Convert(string Script)
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{
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string Return = "";
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Script = " \r\n" + Script;
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//
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// Prepare script for processing
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//
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// Clean up linebreaks
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Script = Regex.Replace(Script, @"\r\n", "\n");
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Script = Regex.Replace(Script, @"\n", "\r\n");
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// QUOTE REPLACEMENT
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// temporarily replace quotes so we can work our magic on the script without
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// always considering if we are inside our outside ""'s
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string _Script = "";
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string C;
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bool in_quote = false;
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bool quote_replaced = false;
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string quote_replacement_string = "Q_U_O_T_E_REPLACEMENT_";
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string quote = "";
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bool last_was_escape = false;
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int quote_replaced_count = 0;
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for (int p = 0; p < Script.Length; p++)
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{
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C = Script.Substring(p, 1);
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while (true)
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{
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// found " and last was not \ so this is not an escaped \"
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if (C == "\"" && last_was_escape == false)
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{
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// Toggle inside/outside quote
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in_quote = !in_quote;
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if (in_quote)
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{
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quote_replaced_count++;
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}
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else
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{
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if (quote == "")
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{
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// We didn't replace quote, probably because of empty string?
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_Script += quote_replacement_string + quote_replaced_count.ToString().PadLeft(5, "0".ToCharArray()[0]);
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}
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// We just left a quote
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QUOTES.Add(quote_replacement_string + quote_replaced_count.ToString().PadLeft(5, "0".ToCharArray()[0]), quote);
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quote = "";
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}
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break;
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}
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if (!in_quote)
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{
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// We are not inside a quote
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quote_replaced = false;
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}
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else
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{
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// We are inside a quote
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if (!quote_replaced)
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{
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// Replace quote
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_Script += quote_replacement_string + quote_replaced_count.ToString().PadLeft(5, "0".ToCharArray()[0]);
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quote_replaced = true;
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}
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quote += C;
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break;
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}
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_Script += C;
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break;
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}
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last_was_escape = false;
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if (C == @"\")
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{
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last_was_escape = true;
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}
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}
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Script = _Script;
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//
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// END OF QUOTE REPLACEMENT
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//
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//
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// PROCESS STATES
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// Remove state definitions and add state names to start of each event within state
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//
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int ilevel = 0;
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int lastlevel = 0;
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string ret = "";
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string cache = "";
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bool in_state = false;
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string current_statename = "";
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for (int p = 0; p < Script.Length; p++)
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{
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C = Script.Substring(p, 1);
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while (true)
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{
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// inc / dec level
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if (C == @"{")
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ilevel++;
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if (C == @"}")
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ilevel--;
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if (ilevel < 0)
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ilevel = 0;
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cache += C;
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// if level == 0, add to return
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if (ilevel == 1 && lastlevel == 0)
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{
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// 0 => 1: Get last
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Match m = Regex.Match(cache, @"(?![a-zA-Z_]+)\s*([a-zA-Z_]+)[^a-zA-Z_\(\)]*{", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
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in_state = false;
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if (m.Success)
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{
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// Go back to level 0, this is not a state
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in_state = true;
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current_statename = m.Groups[1].Captures[0].Value;
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//Console.WriteLine("Current statename: " + current_statename);
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cache = Regex.Replace(cache, @"(?![a-zA-Z_]+)\s*([a-zA-Z_]+)[^a-zA-Z_\(\)]*{", "", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
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}
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ret += cache;
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cache = "";
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}
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if (ilevel == 0 && lastlevel == 1)
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{
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// 1 => 0: Remove last }
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if (in_state == true)
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{
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cache = cache.Remove(cache.Length - 1, 1);
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//cache = Regex.Replace(cache, "}$", "", RegexOptions.Multiline | RegexOptions.Singleline);
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//Replace function names
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// void dataserver(key query_id, string data) {
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//cache = Regex.Replace(cache, @"([^a-zA-Z_]\s*)((?!if|switch|for)[a-zA-Z_]+\s*\([^\)]*\)[^{]*{)", "$1" + "<STATE>" + "$2", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
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//Console.WriteLine("Replacing using statename: " + current_statename);
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cache = Regex.Replace(cache, @"^(\s*)((?!(if|switch|for)[^a-zA-Z0-9_])[a-zA-Z0-9_]*\s*\([^\)]*\)[^;]*\{)", @"public $1" + current_statename + "_event_$2", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
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}
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ret += cache;
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cache = "";
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in_state = true;
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current_statename = "";
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}
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break;
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}
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lastlevel = ilevel;
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}
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ret += cache;
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cache = "";
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Script = ret;
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ret = "";
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foreach (string key in DataTypes.Keys)
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{
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string val;
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DataTypes.TryGetValue(key, out val);
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// Replace CAST - (integer) with (int)
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Script = Regex.Replace(Script, @"\(" + key + @"\)", @"(" + val + ")", RegexOptions.Compiled | RegexOptions.Multiline);
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// Replace return types and function variables - integer a() and f(integer a, integer a)
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Script = Regex.Replace(Script, @"(^|;|}|[\(,])(\s*)" + key + @"(\s*)", @"$1$2" + val + "$3", RegexOptions.Compiled | RegexOptions.Multiline);
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}
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// Add "void" in front of functions that needs it
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Script = Regex.Replace(Script, @"^(\s*)((?!(if|switch|for)[^a-zA-Z0-9_])[a-zA-Z0-9_]*\s*\([^\)]*\)[^;]*\{)", @"$1void $2", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
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// Replace <x,y,z> and <x,y,z,r>
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Script = Regex.Replace(Script, @"<([^,>]*,[^,>]*,[^,>]*,[^,>]*)>", @"new Axiom.Math.Quaternion($1)", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
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Script = Regex.Replace(Script, @"<([^,>]*,[^,>]*,[^,>]*)>", @"new Axiom.Math.Vector3($1)", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
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// Replace List []'s
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Script = Regex.Replace(Script, @"\[([^\]]*)\]", @"List.Parse($1)", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
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// Replace (string) to .ToString() //
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Script = Regex.Replace(Script, @"\(string\)\s*([a-zA-Z0-9_]+(\s*\([^\)]*\))?)", @"$1.ToString()", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
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Script = Regex.Replace(Script, @"\((float|int)\)\s*([a-zA-Z0-9_]+(\s*\([^\)]*\))?)", @"$1.Parse($2)", RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
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// REPLACE BACK QUOTES
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foreach (string key in QUOTES.Keys)
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{
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string val;
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QUOTES.TryGetValue(key, out val);
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Script = Script.Replace(key, "\"" + val + "\"");
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}
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// Add namespace, class name and inheritance
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Return = "namespace SecondLife {\r\n";
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Return += "public class Script : OpenSim.Region.ScriptEngine.DotNetEngine.Compiler.LSL.LSL_BaseClass {\r\n";
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Return += @"
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public Script(
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OpenSim.Region.ScriptEngine.DotNetEngine.ScriptManager manager,
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OpenSim.Region.Environment.Scenes.Scripting.IScriptHost host ) : base( manager, host ) { }"+"\r\n";
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Return += Script;
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Return += "} }\r\n";
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return Return;
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}
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}
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}
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