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bacbade369
Loads of things has been put into interfaces instead of the specific class. We are now one step closer to ScriptServer, and its very easy to implement new script languages. Just a few lines required to make them a OpenSim script module with all its glory.
327 lines
14 KiB
C#
327 lines
14 KiB
C#
/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSim Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS AS IS AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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using System.Collections.Generic;
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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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// Uses regex to convert LSL code to C# code.
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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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// Only the types we need to convert
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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", "LSL_Types.Vector3");
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dataTypes.Add("rotation", "LSL_Types.Quaternion");
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dataTypes.Add("list", "LSL_Types.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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quotes.Clear();
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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 +
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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(
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quote_replacement_string +
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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 +
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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 =
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Regex.Match(cache, @"(?![a-zA-Z_]+)\s*([a-zA-Z_]+)[^a-zA-Z_\(\)]*{",
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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 =
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Regex.Replace(cache,
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@"(?<s1>(?![a-zA-Z_]+)\s*)" + @"([a-zA-Z_]+)(?<s2>[^a-zA-Z_\(\)]*){",
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"${s1}${s2}",
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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 =
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Regex.Replace(cache,
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@"^(\s*)((?!(if|switch|for|while)[^a-zA-Z0-9_])[a-zA-Z0-9_]*\s*\([^\)]*\)[^;]*\{)",
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@"$1public " + current_statename + "_event_$2",
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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 =
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Regex.Replace(Script, @"\(" + key + @"\)", @"(" + val + ")",
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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 =
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Regex.Replace(Script, @"(^|;|}|[\(,])(\s*)" + key + @"(\s+)", @"$1$2" + val + "$3",
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RegexOptions.Compiled | RegexOptions.Multiline);
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Script =
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Regex.Replace(Script, @"(^|;|}|[\(,])(\s*)" + key + @"(\s*)[,]", @"$1$2" + val + "$3,",
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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 =
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Regex.Replace(Script,
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@"^(\s*public\s+)((?!(if|switch|for)[^a-zA-Z0-9_])[a-zA-Z0-9_]*\s*\([^\)]*\)[^;]*\{)",
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@"$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 =
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Regex.Replace(Script, @"<([^,>;\)]*,[^,>;\)]*,[^,>;\)]*,[^,>;\)]*)>", @"new LSL_Types.Quaternion($1)",
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RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
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Script =
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Regex.Replace(Script, @"<([^,>;\)]*,[^,>;\)]*,[^,>;\)]*)>", @"new LSL_Types.Vector3($1)",
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RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
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// Replace List []'s
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Script =
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Regex.Replace(Script, @"\[([^\]]*)\]", @"new LSL_Types.list($1)",
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RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
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// Replace (string) to .ToString() //
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Script =
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Regex.Replace(Script, @"\(string\)\s*([a-zA-Z0-9_]+(\s*\([^\)]*\))?)", @"$1.ToString()",
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RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.Singleline);
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Script =
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Regex.Replace(Script, @"\((float|int)\)\s*([a-zA-Z0-9_]+(\s*\([^\)]*\))?)", @"$1.Parse($2)",
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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 = "" +
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"using OpenSim.Region.ScriptEngine.Common; using System.Collections.Generic;";
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//"using System; " +
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//"using System.Collections.Generic; " +
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//"using System.Text; " +
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//"using OpenSim.Region.ScriptEngine.Common; " +
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//"using integer = System.Int32; " +
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//"using key = System.String; ";
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//// Make a Using out of DataTypes
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//// Using integer = System.Int32;
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//string _val;
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//foreach (string key in DataTypes.Keys)
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//{
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// DataTypes.TryGetValue(key, out _val);
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// if (key != _val)
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// {
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// Return += "using " + key + " = " + _val + "; ";
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// }
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//}
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Return += "" +
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"namespace SecondLife { ";
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Return += "" +
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//"[Serializable] " +
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"public class Script : OpenSim.Region.ScriptEngine.Common.LSL_BaseClass { ";
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Return += @"public Script() { } ";
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Return += Script;
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Return += "} }\r\n";
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quotes.Clear();
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return Return;
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}
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}
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} |