mirror of
https://git.do.srb2.org/STJr/UltimateZoneBuilder.git
synced 2024-12-12 21:21:48 +00:00
1387 lines
56 KiB
C#
Executable file
1387 lines
56 KiB
C#
Executable file
using CodeImp.DoomBuilder.Config;
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using CodeImp.DoomBuilder.Data;
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Text;
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namespace CodeImp.DoomBuilder.ZDoom
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{
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public sealed class ZScriptParser : ZDTextParser
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{
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#region ================== Internal classes
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public class ZScriptClassStructure
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{
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// these are used for the class itself
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public string ClassName { get; internal set; }
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public string ReplacementName { get; internal set; }
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public string ParentName { get; internal set; }
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public ZScriptActorStructure Actor { get; internal set; }
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internal DecorateCategoryInfo Region;
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public bool IsMixin { get; internal set; }
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public bool IsExtension { get; internal set; }
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public List<ZScriptClassStructure> Extensions { get; internal set; }
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// these are used for parsing and error reporting
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public ZScriptParser Parser { get; internal set; }
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public Stream Stream { get; internal set; }
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public long Position { get; internal set; }
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public BinaryReader DataReader { get; internal set; }
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public string SourceName { get; internal set; }
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public DataLocation DataLocation { get; internal set; }
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// textresourcepath
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public string TextResourcePath { get; internal set; }
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internal ZScriptClassStructure(ZScriptParser parser, string classname, string replacesname, string parentname, bool ismixin, bool isextension, DecorateCategoryInfo region)
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{
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Parser = parser;
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Stream = parser.datastream;
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Position = parser.datastream.Position;
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DataReader = parser.datareader;
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SourceName = parser.sourcename;
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DataLocation = parser.datalocation;
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TextResourcePath = parser.textresourcepath;
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ClassName = classname;
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ReplacementName = replacesname;
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ParentName = parentname;
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Actor = null;
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Region = region;
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IsMixin = ismixin;
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IsExtension = isextension;
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Extensions = new List<ZScriptClassStructure>();
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}
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internal void RestoreStreamData()
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{
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Parser.datastream = Stream;
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Parser.datastream.Position = Position;
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Parser.datareader = DataReader;
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Parser.sourcename = SourceName;
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Parser.datalocation = DataLocation;
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Parser.prevstreamposition = -1;
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}
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internal bool Process()
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{
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RestoreStreamData();
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bool isactor = false;
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ZScriptClassStructure _pstruct = this;
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while (_pstruct != null)
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{
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if (_pstruct.ClassName.ToLowerInvariant() == "actor")
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{
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isactor = true;
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break;
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}
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if (_pstruct.ParentName != null)
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{
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string _pname = _pstruct.ParentName.ToLowerInvariant();
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if(_pname == _pstruct.ClassName.ToLowerInvariant())
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{
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Parser.ReportError("Fatal: Class \"" + _pstruct.ClassName + "\" is trying to inherit from itself.");
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return false;
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}
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string _cname = _pstruct.ClassName;
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Parser.allclasses.TryGetValue(_pname, out _pstruct);
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if (_pstruct == null)
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{
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Parser.ReportError("Fatal: Class \"" + _cname + "\" is trying to inherit from \"" + _pname + "\" which does not exist.");
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return false;
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}
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}
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else _pstruct = null;
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}
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string log_inherits = ((ParentName != null) ? "inherits " + ParentName : "");
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if (ReplacementName != null) log_inherits += ((log_inherits.Length > 0) ? ", " : "") + "replaces " + ReplacementName;
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if (log_inherits.Length > 0) log_inherits = " (" + log_inherits + ")";
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if (isactor || IsMixin || IsExtension)
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{
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Actor = new ZScriptActorStructure(Parser, Region, ClassName, ReplacementName, ParentName);
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if (Parser.HasError)
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{
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Actor = null;
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return false;
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}
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if (!IsExtension)
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{
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// check actor replacement.
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Parser.archivedactors[Actor.ClassName.ToLowerInvariant()] = Actor;
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Parser.realarchivedactors[Actor.ClassName.ToLowerInvariant()] = Actor;
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if (Actor.CheckActorSupported())
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Parser.actors[Actor.ClassName.ToLowerInvariant()] = Actor;
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// Replace an actor?
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if (Actor.ReplacesClass != null)
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{
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if (Parser.GetArchivedActorByName(Actor.ReplacesClass, false) != null)
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Parser.archivedactors[Actor.ReplacesClass.ToLowerInvariant()] = Actor;
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else
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Parser.LogWarning("Unable to find \"" + Actor.ReplacesClass + "\" class to replace, while parsing \"" + Actor.ClassName + "\"");
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if (Actor.CheckActorSupported() && Parser.GetActorByName(Actor.ReplacesClass) != null)
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Parser.actors[Actor.ReplacesClass.ToLowerInvariant()] = Actor;
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}
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//mxd. Add to current text resource
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if (!Parser.scriptresources[TextResourcePath].Entries.Contains(Actor.ClassName)) Parser.scriptresources[TextResourcePath].Entries.Add(Actor.ClassName);
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}
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}
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//Parser.LogWarning(string.Format("Parsed {0}class {1}{2}", isactor?"actor ":"", ClassName, log_inherits));
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return true;
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}
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}
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#endregion
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#region ================== Delegates
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public delegate void IncludeDelegate(ZScriptParser parser, string includefile);
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public IncludeDelegate OnInclude;
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#endregion
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#region ================== Constants
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#endregion
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#region ================== Variables
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//mxd. Script type
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internal override ScriptType ScriptType { get { return ScriptType.ZSCRIPT; } }
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// These are actors we want to keep
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private Dictionary<string, ActorStructure> actors;
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// These are all parsed actors, also those from other games
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private Dictionary<string, ActorStructure> archivedactors;
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// These are archivedactors, but also without replacements, for inheritance purposes
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private Dictionary<string, ActorStructure> realarchivedactors;
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// In ZScript, you can inherit an actor before defining it. So we need to postpone all processing after the classes have been gathered.
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private Dictionary<string, ZScriptClassStructure> allclasses;
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private List<ZScriptClassStructure> allclasseslist;
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// Mixin classes
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private Dictionary<string, ZScriptClassStructure> mixinclasses;
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private List<ZScriptClassStructure> mixinclasseslist;
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//mxd. Includes tracking
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private HashSet<string> parsedlumps;
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//mxd. Disposing. Is that really needed?..
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private bool isdisposed;
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// [ZZ] custom tokenizer class
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internal ZScriptTokenizer tokenizer;
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//
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public bool NoWarnings = false;
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#endregion
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#region ================== Properties
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/// <summary>
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/// All actors that are supported by the current game.
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/// </summary>
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public IEnumerable<ActorStructure> Actors { get { return actors.Values; } }
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/// <summary>
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/// All actors defined in the loaded DECORATE structures. This includes actors not supported in the current game.
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/// </summary>
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public ICollection<ActorStructure> AllActors { get { return archivedactors.Values; } }
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/// <summary>
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/// mxd. All actors that are supported by the current game.
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/// </summary>
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internal Dictionary<string, ActorStructure> ActorsByClass { get { return actors; } }
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/// <summary>
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/// mxd. All actors defined in the loaded DECORATE structures. This includes actors not supported in the current game.
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/// </summary>
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internal Dictionary<string, ActorStructure> AllActorsByClass { get { return archivedactors; } }
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/// <summary>
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/// This is used to find out what classes were parsed from specific archive
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/// </summary>
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public HashSet<string> LastClasses { get; internal set; }
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#endregion
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#region ================== Constructor / Disposer
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// Constructor
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public ZScriptParser()
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{
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ClearActors();
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}
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// Disposer
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public void Dispose()
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{
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//mxd. Not already disposed?
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if (!isdisposed)
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{
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foreach (KeyValuePair<string, ActorStructure> a in archivedactors)
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a.Value.Dispose();
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actors = null;
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archivedactors = null;
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isdisposed = true;
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}
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}
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#endregion
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#region ================== Parsing
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private bool ParseInclude(string filename)
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{
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Stream localstream = datastream;
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string localsourcename = sourcename;
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BinaryReader localreader = datareader;
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DataLocation locallocation = datalocation; //mxd
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string localtextresourcepath = textresourcepath; //mxd
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ZScriptTokenizer localtokenizer = tokenizer; // [ZZ]
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//INFO: ZDoom DECORATE include paths can't be relative ("../actor.txt")
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//or absolute ("d:/project/actor.txt")
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//or have backward slashes ("info\actor.txt")
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//include paths are relative to the first parsed entry, not the current one
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//also include paths may or may not be quoted
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//mxd. Sanity checks
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if (string.IsNullOrEmpty(filename))
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{
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ReportError("Expected file name to include");
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return false;
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}
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//mxd. Check invalid path chars
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if (!CheckInvalidPathChars(filename)) return false;
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//mxd. Absolute paths are not supported...
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if (Path.IsPathRooted(filename))
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{
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ReportError("Absolute include paths are not supported by ZDoom");
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return false;
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}
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// [JD] Relative paths are supported by GZDoom since 4.8.0
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if (filename.StartsWith(RELATIVE_PATH_MARKER) || filename.StartsWith(CURRENT_FOLDER_PATH_MARKER) ||
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filename.StartsWith(ALT_RELATIVE_PATH_MARKER) || filename.StartsWith(ALT_CURRENT_FOLDER_PATH_MARKER))
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{
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List<string> pathTokens = localsourcename.Split('\\', '/').ToList(); // take full path of current source file, split to individual folders
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pathTokens.RemoveAt(pathTokens.Count - 1); // remove filename itself
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pathTokens.AddRange(filename.Split('\\', '/')); // add relative path
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pathTokens.RemoveAll(token => token.Equals(".", StringComparison.InvariantCulture)); // remove all "." folders from the path
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for (int i = 0; i < pathTokens.Count; i++)
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{
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if (pathTokens[i].Equals("..", StringComparison.InvariantCulture)) // for each "..": remove them and previous folder from the path
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{
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if (i == 0) // cannot have ".." at start of full path
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{
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ReportError("Relative path escaping archive");
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return false;
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}
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pathTokens.RemoveAt(i);
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pathTokens.RemoveAt(i - 1);
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i -= 2;
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}
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}
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filename = string.Join("/", pathTokens); // combine the included file path
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}
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//mxd. Backward slashes are not supported
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if (filename.Contains("\\"))
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{
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ReportError("Only forward slashes are supported by ZDoom");
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return false;
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}
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//mxd. Already parsed?
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if (parsedlumps.Contains(filename))
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{
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ReportError("Already parsed \"" + filename + "\". Check your include directives");
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return false;
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}
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//mxd. Add to collection
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parsedlumps.Add(filename);
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// Callback to parse this file now
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if (OnInclude != null) OnInclude(this, filename);
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//mxd. Bail out on error
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if (this.HasError) return false;
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// Set our buffers back to continue parsing
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datastream = localstream;
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datareader = localreader;
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sourcename = localsourcename;
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datalocation = locallocation; //mxd
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textresourcepath = localtextresourcepath; //mxd
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tokenizer = localtokenizer;
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return true;
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}
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protected internal override void LogWarning(string message, int linenumber)
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{
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if (NoWarnings)
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return;
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base.LogWarning(message, linenumber);
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}
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// read in an expression as a token list.
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internal List<ZScriptToken> ParseExpression(bool betweenparen = false)
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{
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List<ZScriptToken> ol = new List<ZScriptToken>();
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//
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int nestingLevel = 0;
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//
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while (true)
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{
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long cpos = datastream.Position;
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ZScriptToken token = tokenizer.ReadToken();
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if (token == null)
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{
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ReportError("Expected a token");
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return null;
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}
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// biwa. Report a recoverable parsing problem
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if (!string.IsNullOrEmpty(token.WarningMessage))
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LogWarning(token.WarningMessage);
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if ((token.Type == ZScriptTokenType.Semicolon ||
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token.Type == ZScriptTokenType.Comma) && nestingLevel == 0 && !betweenparen)
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{
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datastream.Position = cpos;
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return ol;
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}
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if (token.Type == ZScriptTokenType.OpenParen)
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{
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nestingLevel++;
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}
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else if (token.Type == ZScriptTokenType.CloseParen)
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{
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nestingLevel--;
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if (nestingLevel < 0) // for example, function call
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{
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datastream.Position = cpos;
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return ol;
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}
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}
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ol.Add(token);
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}
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}
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internal bool SkipBlock(bool eatSemicolon = true)
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{
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int nestingLevel = 0;
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long cpos = datastream.Position;
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ZScriptToken token = tokenizer.ExpectToken(ZScriptTokenType.OpenCurly);
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if (token == null || !token.IsValid)
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{
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ReportError("Expected {, got " + ((Object)token ?? "<null>").ToString());
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return false;
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}
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// parse everything between { and }
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nestingLevel = 1;
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while (nestingLevel > 0)
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{
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cpos = datastream.Position;
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token = tokenizer.ReadToken(true);
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//LogWarning(token.ToString());
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if (token == null)
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{
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ReportError("Expected a token");
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return false;
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}
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if (token.Type != ZScriptTokenType.Invalid)
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continue;
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if (token.Value == "{")
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{
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nestingLevel++;
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}
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else if (token.Value == "}")
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{
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nestingLevel--;
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if (nestingLevel < 0)
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{
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ReportError("Closing parenthesis without an opening one");
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return false;
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}
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}
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}
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// there is POTENTIALLY a semicolon after the class definition. it's not supposed to be there, but it's acceptable (GZDoom.pk3 has this)
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cpos = datastream.Position;
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ZScriptToken tailtoken = tokenizer.ReadToken();
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if (tailtoken == null || !eatSemicolon || tailtoken.Type != ZScriptTokenType.Semicolon)
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datastream.Position = cpos;
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return true;
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}
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internal bool SkipClassBlock()
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{
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int nestingLevel = 0;
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long cpos = datastream.Position;
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ZScriptToken token = tokenizer.ExpectToken(ZScriptTokenType.OpenCurly, ZScriptTokenType.Semicolon);
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bool semico = token.Type == ZScriptTokenType.Semicolon;
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if (token == null || !token.IsValid)
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{
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ReportError("Expected { or ;, got " + ((Object)token ?? "<null>").ToString());
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return false;
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}
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// parse everything between { and } or ; and eof
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nestingLevel = 1;
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while (nestingLevel > 0)
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{
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cpos = datastream.Position;
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token = tokenizer.ReadToken(true);
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//LogWarning(token.ToString());
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if (token == null)
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{
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if (semico)
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{
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nestingLevel--;
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break;
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}
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else
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{
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ReportError("Expected a token");
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return false;
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}
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}
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if (token.Type != ZScriptTokenType.Invalid)
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continue;
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if (token.Value == "{")
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{
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nestingLevel++;
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}
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else if (token.Value == "}")
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{
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nestingLevel--;
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if (nestingLevel < 0)
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{
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ReportError("Closing parenthesis without an opening one");
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return false;
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}
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}
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}
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// there is POTENTIALLY a semicolon after the class definition. it's not supposed to be there, but it's acceptable (GZDoom.pk3 has this)
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cpos = datastream.Position;
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ZScriptToken tailtoken = tokenizer.ReadToken();
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if (tailtoken == null || tailtoken.Type != ZScriptTokenType.Semicolon)
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datastream.Position = cpos;
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return true;
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}
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internal List<ZScriptToken> ParseBlock(bool allowsingle)
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{
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List<ZScriptToken> ol = new List<ZScriptToken>();
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//
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int nestingLevel = 0;
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//
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long cpos = datastream.Position;
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ZScriptToken token = tokenizer.ReadToken();
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if (token == null)
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{
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ReportError("Expected a code block, got <null>");
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return null;
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}
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if (token.Type != ZScriptTokenType.OpenCurly)
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{
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if (!allowsingle)
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{
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ReportError("Expected {, got " + token);
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return null;
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}
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// otherwise this is an expression
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datastream.Position = cpos;
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List<ZScriptToken> ol_expression = ParseExpression();
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token = tokenizer.ReadToken();
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if (token == null || token.Type != ZScriptTokenType.Semicolon)
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{
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ReportError("Expected ;, got " + ((Object)token ?? "<null>").ToString());
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return null;
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}
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ol_expression.Add(token);
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return ol_expression;
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}
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// parse everything between { and }
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nestingLevel = 1;
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while (nestingLevel > 0)
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{
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cpos = datastream.Position;
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token = tokenizer.ReadToken();
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if (token == null)
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{
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ReportError("Expected a token");
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return null;
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|
}
|
|
|
|
if (token.Type == ZScriptTokenType.OpenCurly)
|
|
{
|
|
nestingLevel++;
|
|
}
|
|
else if (token.Type == ZScriptTokenType.CloseCurly)
|
|
{
|
|
nestingLevel--;
|
|
if (nestingLevel < 0)
|
|
{
|
|
ReportError("Closing parenthesis without an opening one");
|
|
return null;
|
|
}
|
|
}
|
|
|
|
ol.Add(token);
|
|
}
|
|
|
|
// there is POTENTIALLY a semicolon after the class definition. it's not supposed to be there, but it's acceptable (GZDoom.pk3 has this)
|
|
ZScriptToken tailtoken = tokenizer.ReadToken();
|
|
cpos = datastream.Position;
|
|
if (tailtoken == null || tailtoken.Type != ZScriptTokenType.Semicolon)
|
|
datastream.Position = cpos;
|
|
else ol.Add(tailtoken);
|
|
|
|
return ol;
|
|
}
|
|
|
|
internal bool ParseConst()
|
|
{
|
|
// const blablabla = <expression>;
|
|
tokenizer.SkipWhitespace();
|
|
ZScriptToken token = tokenizer.ExpectToken(ZScriptTokenType.Identifier);
|
|
if (token == null || !token.IsValid)
|
|
{
|
|
ReportError("Expected const name, got " + ((Object)token ?? "<null>").ToString());
|
|
return false;
|
|
}
|
|
string constname = token.Value;
|
|
tokenizer.SkipWhitespace();
|
|
token = tokenizer.ExpectToken(ZScriptTokenType.OpAssign);
|
|
if (token == null || !token.IsValid)
|
|
{
|
|
ReportError("Expected =, got " + ((Object)token ?? "<null>").ToString());
|
|
return false;
|
|
}
|
|
tokenizer.SkipWhitespace();
|
|
if (ParseExpression() == null) return false; // anything until a semicolon or a comma, + anything between parentheses
|
|
tokenizer.SkipWhitespace();
|
|
token = tokenizer.ExpectToken(ZScriptTokenType.Semicolon);
|
|
if (token == null || !token.IsValid)
|
|
{
|
|
ReportError("Expected ;, got " + ((Object)token ?? "<null>").ToString());
|
|
return false;
|
|
}
|
|
//LogWarning(string.Format("Parsed const {0}", constname));
|
|
return true;
|
|
}
|
|
|
|
internal bool ParseEnum()
|
|
{
|
|
// enum blablabla {}
|
|
tokenizer.SkipWhitespace();
|
|
ZScriptToken token = tokenizer.ExpectToken(ZScriptTokenType.Identifier);
|
|
if (token == null || !token.IsValid)
|
|
{
|
|
ReportError("Expected enum name, got " + ((Object)token ?? "<null>").ToString());
|
|
return false;
|
|
}
|
|
tokenizer.SkipWhitespace();
|
|
if (ParseBlock(false) == null) return false; // anything between { and }
|
|
//LogWarning(string.Format("Parsed enum {0}", token.Value));
|
|
return true;
|
|
}
|
|
|
|
internal bool ParseInteger(out int value)
|
|
{
|
|
value = 1;
|
|
|
|
ZScriptToken token = tokenizer.ExpectToken(ZScriptTokenType.Integer, ZScriptTokenType.OpAdd, ZScriptTokenType.OpSubtract);
|
|
if (token == null || !token.IsValid)
|
|
{
|
|
ReportError("Expected integer, got " + ((Object)token ?? "<null>").ToString());
|
|
return false;
|
|
}
|
|
|
|
if (token.Type == ZScriptTokenType.OpSubtract) value = -1;
|
|
|
|
if (token.Type != ZScriptTokenType.Integer)
|
|
{
|
|
token = tokenizer.ExpectToken(ZScriptTokenType.Integer);
|
|
if (token == null || !token.IsValid)
|
|
{
|
|
ReportError("Expected integer, got " + ((Object)token ?? "<null>").ToString());
|
|
return false;
|
|
}
|
|
|
|
value *= token.ValueInt;
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
value = token.ValueInt;
|
|
return true;
|
|
}
|
|
}
|
|
|
|
internal string ParseDottedIdentifier()
|
|
{
|
|
string name = "";
|
|
while (true)
|
|
{
|
|
ZScriptToken token = tokenizer.ExpectToken(ZScriptTokenType.Identifier);
|
|
if (token == null || !token.IsValid)
|
|
{
|
|
ReportError("Expected identifier, got " + ((Object)token ?? "<null>").ToString());
|
|
return null;
|
|
}
|
|
|
|
if (name.Length > 0) name += '.';
|
|
name += token.Value.ToLowerInvariant();
|
|
|
|
long cpos = datastream.Position;
|
|
token = tokenizer.ReadToken();
|
|
if (token.Type != ZScriptTokenType.Dot)
|
|
{
|
|
datastream.Position = cpos;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return name;
|
|
}
|
|
|
|
internal bool ParseClassOrStruct(bool isstruct, bool extend, bool mixin, DecorateCategoryInfo region)
|
|
{
|
|
// 'class' keyword is already parsed
|
|
tokenizer.SkipWhitespace();
|
|
ZScriptToken tok_classname = tokenizer.ExpectToken(ZScriptTokenType.Identifier);
|
|
if (tok_classname == null || !tok_classname.IsValid)
|
|
{
|
|
ReportError("Expected class name, got " + ((Object)tok_classname ?? "<null>").ToString());
|
|
return false;
|
|
}
|
|
|
|
// name [replaces name] [: name] [native]
|
|
ZScriptToken tok_replacename = null;
|
|
ZScriptToken tok_parentname = null;
|
|
ZScriptToken tok_native = null;
|
|
ZScriptToken tok_scope = null;
|
|
ZScriptToken tok_version = null;
|
|
string[] class_scope_modifiers = new string[] { "clearscope", "ui", "play" };
|
|
string[] other_modifiers = new string[] { "abstract" };
|
|
while (true)
|
|
{
|
|
tokenizer.SkipWhitespace();
|
|
ZScriptToken token = tokenizer.ReadToken();
|
|
|
|
if (token == null)
|
|
{
|
|
ReportError("Expected a token");
|
|
return false;
|
|
}
|
|
|
|
if (token.Type == ZScriptTokenType.Identifier)
|
|
{
|
|
if (token.Value.ToLowerInvariant() == "replaces")
|
|
{
|
|
if (tok_native != null)
|
|
{
|
|
ReportError("Cannot have replacement after native");
|
|
return false;
|
|
}
|
|
|
|
if (tok_replacename != null)
|
|
{
|
|
ReportError("Cannot have two replacements per class");
|
|
return false;
|
|
}
|
|
|
|
tokenizer.SkipWhitespace();
|
|
tok_replacename = tokenizer.ExpectToken(ZScriptTokenType.Identifier);
|
|
if (tok_replacename == null || !tok_replacename.IsValid)
|
|
{
|
|
ReportError("Expected replacement class name, got " + ((Object)tok_replacename ?? "<null>").ToString());
|
|
return false;
|
|
}
|
|
}
|
|
else if (token.Value.ToLowerInvariant() == "native")
|
|
{
|
|
if (tok_native != null)
|
|
{
|
|
ReportError("Cannot have two native keywords");
|
|
return false;
|
|
}
|
|
|
|
tok_native = token;
|
|
}
|
|
else if (Array.IndexOf(class_scope_modifiers, token.Value.ToLowerInvariant()) >= 0)
|
|
{
|
|
if (tok_scope != null)
|
|
{
|
|
ReportError("Cannot have two scope qualifiers");
|
|
return false;
|
|
}
|
|
|
|
tok_scope = token;
|
|
}
|
|
else if (!isstruct && Array.IndexOf(other_modifiers, token.Value.ToLowerInvariant()) >= 0)
|
|
{
|
|
// don't save these. whatever.
|
|
}
|
|
else if (token.Value.ToLowerInvariant() == "version")
|
|
{
|
|
if (tok_version != null)
|
|
{
|
|
ReportError("Cannot have two versions");
|
|
return false;
|
|
}
|
|
|
|
// read in the version.
|
|
tokenizer.SkipWhitespace();
|
|
token = tokenizer.ExpectToken(ZScriptTokenType.OpenParen);
|
|
if (token == null || !token.IsValid)
|
|
{
|
|
ReportError("Expected (, got " + ((Object)token ?? "<null>").ToString());
|
|
return false;
|
|
}
|
|
|
|
tokenizer.SkipWhitespace();
|
|
token = tokenizer.ExpectToken(ZScriptTokenType.String);
|
|
if (token == null || !token.IsValid)
|
|
{
|
|
ReportError("Expected version, got " + ((Object)token ?? "<null>").ToString());
|
|
return false;
|
|
}
|
|
|
|
tok_version = token;
|
|
tokenizer.SkipWhitespace();
|
|
token = tokenizer.ExpectToken(ZScriptTokenType.CloseParen);
|
|
if (token == null || !token.IsValid)
|
|
{
|
|
ReportError("Expected ), got " + ((Object)token ?? "<null>").ToString());
|
|
return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ReportError("Unexpected token " + ((Object)token ?? "<null>").ToString());
|
|
}
|
|
}
|
|
else if (token.Type == ZScriptTokenType.Colon)
|
|
{
|
|
if (tok_parentname != null)
|
|
{
|
|
ReportError("Cannot have two parent classes");
|
|
return false;
|
|
}
|
|
|
|
if (tok_replacename != null || tok_native != null)
|
|
{
|
|
ReportError("Cannot have parent class after replacement class or native keyword");
|
|
return false;
|
|
}
|
|
|
|
tokenizer.SkipWhitespace();
|
|
tok_parentname = tokenizer.ExpectToken(ZScriptTokenType.Identifier);
|
|
if (tok_parentname == null || !tok_parentname.IsValid)
|
|
{
|
|
ReportError("Expected replacement class name, got " + ((Object)tok_parentname ?? "<null>").ToString());
|
|
return false;
|
|
}
|
|
}
|
|
else if (token.Type == ZScriptTokenType.Semicolon || token.Type == ZScriptTokenType.OpenCurly)
|
|
{
|
|
datastream.Position--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// do nothing else atm, except remember the position to put it into the class parsing code
|
|
tokenizer.SkipWhitespace();
|
|
long cpos = datastream.Position;
|
|
//List<ZScriptToken> classblocktokens = ParseBlock(false);
|
|
//if (classblocktokens == null) return false;
|
|
if (!SkipClassBlock()) return false;
|
|
|
|
string log_inherits = ((tok_parentname != null) ? "inherits " + tok_parentname.Value : "");
|
|
if (tok_replacename != null) log_inherits += ((log_inherits.Length > 0) ? ", " : "") + "replaces " + tok_replacename.Value;
|
|
if (extend) log_inherits += ((log_inherits.Length > 0) ? ", " : "") + "extends";
|
|
if (log_inherits.Length > 0) log_inherits = " (" + log_inherits + ")";
|
|
|
|
// now if we are a class, and we inherit actor, parse this entry as an actor. don't process extensions.
|
|
if (!isstruct && !extend && !mixin)
|
|
{
|
|
ZScriptClassStructure cls = new ZScriptClassStructure(this, tok_classname.Value, (tok_replacename != null) ? tok_replacename.Value : null, (tok_parentname != null) ? tok_parentname.Value : null, false, false, region);
|
|
cls.Position = cpos;
|
|
string clskey = cls.ClassName.ToLowerInvariant();
|
|
if (allclasses.ContainsKey(clskey))
|
|
{
|
|
ReportError("Class " + cls.ClassName + " is double-defined");
|
|
return false;
|
|
}
|
|
|
|
allclasses.Add(cls.ClassName.ToLowerInvariant(), cls);
|
|
allclasseslist.Add(cls);
|
|
LastClasses.Add(cls.ClassName.ToLowerInvariant());
|
|
}
|
|
else if(!isstruct && extend)
|
|
{
|
|
string clskey = tok_classname.Value.ToLowerInvariant();
|
|
|
|
if(!allclasses.ContainsKey(clskey))
|
|
{
|
|
ReportError("Trying to extend class " + tok_classname.Value + " before it was defined");
|
|
return false;
|
|
}
|
|
|
|
// GZDoom doesn't allow extending classes that are from another archive
|
|
if(!allclasses[clskey].DataLocation.Equals(datalocation))
|
|
{
|
|
ReportError("Trying to extend class " + tok_classname.Value + " that's not part of data location \"" + datalocation + "\", but \"" + allclasses[clskey].DataLocation + "\"");
|
|
return false;
|
|
}
|
|
|
|
ZScriptClassStructure cls = new ZScriptClassStructure(this, tok_classname.Value, null, null, false, true, region);
|
|
cls.Position = cpos;
|
|
allclasses[clskey].Extensions.Add(cls);
|
|
}
|
|
else if (mixin)
|
|
{
|
|
// This is a bit ugly. We're treating mixin classes as actors, even though they aren't. But otherwise the parser
|
|
// doesn't parse all the actor info we need
|
|
ZScriptClassStructure cls = new ZScriptClassStructure(this, tok_classname.Value, null, null, true, false, region);
|
|
cls.Position = cpos;
|
|
string clskey = cls.ClassName.ToLowerInvariant();
|
|
if(mixinclasses.ContainsKey(clskey))
|
|
{
|
|
ReportError("Mixin class " + cls.ClassName + " is double-defines");
|
|
return false;
|
|
}
|
|
|
|
mixinclasses.Add(cls.ClassName.ToLowerInvariant(), cls);
|
|
mixinclasseslist.Add(cls);
|
|
}
|
|
|
|
//LogWarning(string.Format("Parsed {0} {1}{2}", (isstruct ? "struct" : "class"), tok_classname.Value, log_inherits));
|
|
|
|
return true;
|
|
}
|
|
|
|
// This parses the given decorate stream
|
|
// Returns false on errors
|
|
public override bool Parse(TextResourceData data, bool clearerrors)
|
|
{
|
|
if (clearerrors) LastClasses = new HashSet<string>();
|
|
|
|
//mxd. Already parsed?
|
|
if (!base.AddTextResource(data))
|
|
{
|
|
if (clearerrors) ClearError();
|
|
return true;
|
|
}
|
|
|
|
// Cannot process?
|
|
if (!base.Parse(data, clearerrors)) return false;
|
|
|
|
List<string> includes = new List<string>();
|
|
|
|
// [ZZ] For whatever reason, the parser is closely tied to the tokenizer, and to the general scripting lumps framework (see scripttype).
|
|
// For this reason I have to still inherit the old tokenizer while only using the new one.
|
|
//ReportError("found zscript? :)");
|
|
prevstreamposition = -1;
|
|
tokenizer = new ZScriptTokenizer(datareader);
|
|
|
|
// region-as-category, ZScript ver
|
|
List<DecorateCategoryInfo> regions = new List<DecorateCategoryInfo>();
|
|
|
|
while (true)
|
|
{
|
|
ZScriptToken token = tokenizer.ExpectToken(ZScriptTokenType.Identifier, // const, enum, class, etc
|
|
ZScriptTokenType.Whitespace,
|
|
ZScriptTokenType.Newline,
|
|
ZScriptTokenType.BlockComment, ZScriptTokenType.LineComment,
|
|
ZScriptTokenType.Preprocessor);
|
|
|
|
if (token == null) // EOF reached
|
|
break;
|
|
|
|
if (!token.IsValid)
|
|
{
|
|
ReportError("Expected preprocessor statement, const, enum or class declaraction, got " + token);
|
|
return false;
|
|
}
|
|
|
|
// If $GZDB_SKIP is encountered we stop parsing. Not that we can't "return" here yet, because the includes still have to be parsed
|
|
if (token.Type == ZScriptTokenType.LineComment && token.Value.Trim().ToLowerInvariant() == "$gzdb_skip")
|
|
break;
|
|
|
|
// toplevel tokens allowed are only Preprocessor and Identifier.
|
|
switch (token.Type)
|
|
{
|
|
case ZScriptTokenType.Whitespace:
|
|
case ZScriptTokenType.Newline:
|
|
case ZScriptTokenType.BlockComment:
|
|
break;
|
|
|
|
case ZScriptTokenType.LineComment:
|
|
{
|
|
string cmtval = token.Value.TrimStart();
|
|
if (cmtval.Length <= 0 || cmtval[0] != '$')
|
|
break;
|
|
// if we are in a region, read property using function from ZScriptActorStructure
|
|
if (regions.Count > 0)
|
|
ZScriptActorStructure.ParseGZDBComment(regions.Last().Properties, cmtval);
|
|
}
|
|
break;
|
|
|
|
case ZScriptTokenType.Preprocessor:
|
|
{
|
|
tokenizer.SkipWhitespace();
|
|
ZScriptToken directive = tokenizer.ExpectToken(ZScriptTokenType.Identifier);
|
|
if (directive == null || !directive.IsValid)
|
|
{
|
|
ReportError("Expected preprocessor directive, got " + ((Object)directive ?? "<null>").ToString());
|
|
return false;
|
|
}
|
|
|
|
string d_value = directive.Value.ToLowerInvariant();
|
|
if (d_value == "include")
|
|
{
|
|
tokenizer.SkipWhitespace();
|
|
ZScriptToken include_name = tokenizer.ExpectToken(ZScriptTokenType.Identifier, ZScriptTokenType.String, ZScriptTokenType.Name);
|
|
if (include_name == null || !include_name.IsValid)
|
|
{
|
|
ReportError("Cannot include: expected a string value, got " + ((Object)include_name ?? "<null>").ToString());
|
|
return false;
|
|
}
|
|
|
|
// GZDoom parses includes *after* the rest of the file is parsed, so just store the files to include and parse them later
|
|
includes.Add(include_name.Value);
|
|
}
|
|
else if (d_value == "region")
|
|
{
|
|
// just read everything until newline.
|
|
string region_name = "";
|
|
while (true)
|
|
{
|
|
token = tokenizer.ReadToken();
|
|
if (token == null || token.Type == ZScriptTokenType.Newline)
|
|
break;
|
|
region_name += token.Value;
|
|
}
|
|
DecorateCategoryInfo region = new DecorateCategoryInfo();
|
|
string[] cattitle = region_name.Split(DataManager.CATEGORY_SPLITTER, StringSplitOptions.RemoveEmptyEntries);
|
|
if (regions.Count > 0)
|
|
{
|
|
region.Category.AddRange(regions.Last().Category);
|
|
region.Properties = new Dictionary<string, List<string>>(regions.Last().Properties, StringComparer.OrdinalIgnoreCase);
|
|
}
|
|
region.Category.AddRange(cattitle);
|
|
regions.Add(region);
|
|
}
|
|
else if (d_value == "endregion")
|
|
{
|
|
// read everything until newline too?
|
|
// - only if it causes problems
|
|
if (regions.Count > 0)
|
|
regions.RemoveAt(regions.Count - 1); // remove last region from the list
|
|
else
|
|
{
|
|
LogWarning("Superfluous #endregion found without corresponding #region");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ReportError("Unknown preprocessor directive: " + directive.Value);
|
|
return false;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case ZScriptTokenType.Identifier:
|
|
{
|
|
// identifier can be one of: class, enum, const, struct
|
|
// the only type that we really care about is class, as it's the one that has all actors.
|
|
switch (token.Value.ToLowerInvariant())
|
|
{
|
|
case "extend":
|
|
tokenizer.SkipWhitespace();
|
|
token = tokenizer.ExpectToken(ZScriptTokenType.Identifier);
|
|
if (token == null || !token.IsValid || ((token.Value.ToLowerInvariant() != "class") && (token.Value.ToLowerInvariant() != "struct")))
|
|
{
|
|
ReportError("Expected class or struct, got " + ((Object)token ?? "<null>").ToString());
|
|
return false;
|
|
}
|
|
if (!ParseClassOrStruct((token.Value.ToLowerInvariant() == "struct"), true, false, (regions.Count > 0 ? regions.Last() : null)))
|
|
return false;
|
|
break;
|
|
case "mixin":
|
|
tokenizer.SkipWhitespace();
|
|
token = tokenizer.ExpectToken(ZScriptTokenType.Identifier);
|
|
if(token == null || !token.IsValid ||((token.Value.ToLower() != "class")))
|
|
{
|
|
ReportError("Expected class, got " + ((Object)token ?? "<null>").ToString());
|
|
return false;
|
|
}
|
|
if (!ParseClassOrStruct(false, false, true, (regions.Count > 0 ? regions.Last() : null)))
|
|
return false;
|
|
break;
|
|
case "class":
|
|
// todo parse class
|
|
if (!ParseClassOrStruct(false, false, false, (regions.Count > 0 ? regions.Last() : null)))
|
|
return false;
|
|
break;
|
|
case "struct":
|
|
// todo parse struct
|
|
if (!ParseClassOrStruct(true, false, false, null))
|
|
return false;
|
|
break;
|
|
case "const":
|
|
if (!ParseConst())
|
|
return false;
|
|
break;
|
|
case "enum":
|
|
if (!ParseEnum())
|
|
return false;
|
|
break;
|
|
case "version":
|
|
// expect a string. do nothing about it.
|
|
tokenizer.SkipWhitespace();
|
|
token = tokenizer.ExpectToken(ZScriptTokenType.String);
|
|
if (token == null || !token.IsValid)
|
|
{
|
|
ReportError("Expected version string, got " + ((Object)token ?? "<null>").ToString());
|
|
return false;
|
|
}
|
|
break;
|
|
default:
|
|
ReportError("Expected preprocessor statement, const, enum or class declaraction, got " + token);
|
|
return false;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Now parse all included files
|
|
foreach (string include in includes)
|
|
{
|
|
if (!ParseInclude(include))
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
public bool Finalize()
|
|
{
|
|
ClearError();
|
|
|
|
// parse class data
|
|
foreach (ZScriptClassStructure cls in allclasseslist)
|
|
{
|
|
if (!cls.Process())
|
|
return false;
|
|
|
|
// Process extensions
|
|
foreach (ZScriptClassStructure extension in cls.Extensions)
|
|
if (!extension.Process())
|
|
return false;
|
|
}
|
|
|
|
// Parse mixin class data
|
|
foreach(ZScriptClassStructure cls in mixinclasseslist)
|
|
{
|
|
if (!cls.Process())
|
|
return false;
|
|
}
|
|
|
|
// set datastream to null so that log messages aren't output using incorrect line numbers
|
|
Stream odatastream = datastream;
|
|
datastream = null;
|
|
|
|
// inject superclasses, and mixins, since everything is parsed by now
|
|
Dictionary<int, ThingTypeInfo> things = General.Map.Config.GetThingTypes();
|
|
foreach (ZScriptClassStructure cls in allclasseslist)
|
|
{
|
|
ActorStructure actor = cls.Actor;
|
|
if (actor != null)
|
|
{
|
|
// Inheritance
|
|
if (cls.ParentName != null && cls.ParentName.ToLowerInvariant() != "thinker") // don't try to inherit this one)
|
|
{
|
|
actor.baseclass = GetArchivedActorByName(cls.ParentName, true);
|
|
string inheritclass = cls.ParentName;
|
|
|
|
//check if this class inherits from a class defined in game configuration
|
|
string inheritclasscheck = inheritclass.ToLowerInvariant();
|
|
|
|
// inherit args from base class
|
|
if (actor.baseclass != null)
|
|
{
|
|
for (int i = 0; i < 5; i++)
|
|
{
|
|
if (actor.args[i] == null)
|
|
actor.args[i] = actor.baseclass.args[i];
|
|
}
|
|
}
|
|
|
|
bool thingfound = false;
|
|
foreach (KeyValuePair<int, ThingTypeInfo> ti in things)
|
|
{
|
|
if (!string.IsNullOrEmpty(ti.Value.ClassName) && ti.Value.ClassName.ToLowerInvariant() == inheritclasscheck)
|
|
{
|
|
//states
|
|
// [ZZ] allow internal prefix here. it can inherit MapSpot, light, or other internal stuff.
|
|
if (actor.states.Count == 0 && !string.IsNullOrEmpty(ti.Value.Sprite))
|
|
actor.states.Add("spawn", new StateStructure(ti.Value.Sprite.StartsWith(DataManager.INTERNAL_PREFIX) ? ti.Value.Sprite : ti.Value.Sprite.Substring(0, 5)));
|
|
|
|
if (actor.baseclass == null)
|
|
{
|
|
//flags
|
|
if (ti.Value.Hangs && !actor.flags.ContainsKey("spawnceiling"))
|
|
actor.flags["spawnceiling"] = true;
|
|
|
|
if (ti.Value.Blocking > 0 && !actor.flags.ContainsKey("solid"))
|
|
actor.flags["solid"] = true;
|
|
|
|
//properties
|
|
if (!actor.props.ContainsKey("height"))
|
|
actor.props["height"] = new List<string> { ti.Value.Height.ToString() };
|
|
|
|
if (!actor.props.ContainsKey("radius"))
|
|
actor.props["radius"] = new List<string> { ti.Value.Radius.ToString() };
|
|
}
|
|
|
|
// [ZZ] inherit arguments from game configuration
|
|
//
|
|
if (!actor.props.ContainsKey("$clearargs"))
|
|
{
|
|
for (int i = 0; i < 5; i++)
|
|
{
|
|
if (actor.args[i] != null)
|
|
continue; // don't touch it if we already have overrides
|
|
|
|
ArgumentInfo arg = ti.Value.Args[i];
|
|
if (arg != null && arg.Used)
|
|
actor.args[i] = arg;
|
|
}
|
|
}
|
|
|
|
thingfound = true;
|
|
break;
|
|
}
|
|
|
|
if (actor.baseclass == null && !thingfound)
|
|
LogWarning("Unable to find \"" + inheritclass + "\" class to inherit from, while parsing \"" + cls.ClassName + "\"");
|
|
}
|
|
}
|
|
|
|
// Mixins. https://zdoom.org/wiki/ZScript_mixins
|
|
if (((ZScriptActorStructure)actor).Mixins.Count > 0)
|
|
{
|
|
foreach(string mixinclassname in ((ZScriptActorStructure)actor).Mixins)
|
|
{
|
|
if(!mixinclasses.ContainsKey(mixinclassname))
|
|
{
|
|
LogWarning("Unable to find \"" + mixinclassname + "\" mixin class while parsing \"" + actor.ClassName + "\"");
|
|
continue;
|
|
}
|
|
|
|
ZScriptClassStructure mixincls = mixinclasses[mixinclassname];
|
|
|
|
// States
|
|
if(actor.states.Count == 0 && mixincls.Actor.states.Count != 0)
|
|
{
|
|
// Can't use HasState and GetState here, because it does some magic that will not work for mixins
|
|
if (!actor.states.ContainsKey("spawn") && mixincls.Actor.states.ContainsKey("spawn"))
|
|
actor.states.Add("spawn", mixincls.Actor.GetState("spawn"));
|
|
}
|
|
|
|
// Properties
|
|
if (!actor.props.ContainsKey("height") && mixincls.Actor.props.ContainsKey("height"))
|
|
actor.props["height"] = new List<string>(mixincls.Actor.props["height"]);
|
|
|
|
if (!actor.props.ContainsKey("radius") && mixincls.Actor.props.ContainsKey("radius"))
|
|
actor.props["radius"] = new List<string>(mixincls.Actor.props["radius"]);
|
|
|
|
// Flags
|
|
if (!actor.flags.ContainsKey("spawnceiling") && mixincls.Actor.flags.ContainsKey("spawnceiling"))
|
|
actor.flags["spawnceiling"] = true;
|
|
|
|
if (!actor.flags.ContainsKey("solid") && mixincls.Actor.flags.ContainsKey("solid"))
|
|
actor.flags["solid"] = true;
|
|
|
|
// user_ variables
|
|
foreach (string uservarname in mixincls.Actor.uservars.Keys)
|
|
actor.uservars[uservarname] = mixincls.Actor.uservars[uservarname];
|
|
}
|
|
}
|
|
|
|
// Extensions. https://zdoom.org/wiki/ZScript_classes#Extending_Classes
|
|
if (cls.Extensions.Count > 0)
|
|
{
|
|
foreach(ZScriptClassStructure extension in cls.Extensions)
|
|
{
|
|
ActorStructure extenseionactor = extension.Actor;
|
|
|
|
if (extenseionactor == null)
|
|
continue;
|
|
|
|
// States
|
|
if (extenseionactor.states.ContainsKey("spawn"))
|
|
actor.states["spawn"] = extenseionactor.GetState("spawn");
|
|
|
|
// Properties
|
|
if (extenseionactor.props.ContainsKey("height"))
|
|
actor.props["height"] = new List<string>(extenseionactor.props["height"]);
|
|
|
|
if (extenseionactor.props.ContainsKey("radius"))
|
|
actor.props["radius"] = new List<string>(extenseionactor.props["radius"]);
|
|
|
|
// Flags
|
|
if (extenseionactor.flags.ContainsKey("spawnceiling"))
|
|
actor.flags["spawnceiling"] = true;
|
|
|
|
if (extenseionactor.flags.ContainsKey("solid"))
|
|
actor.flags["solid"] = true;
|
|
|
|
// user_ variables
|
|
foreach (string uservarname in extenseionactor.uservars.Keys)
|
|
{
|
|
actor.uservars[uservarname] = extenseionactor.uservars[uservarname];
|
|
|
|
if (extenseionactor.uservar_defaults.ContainsKey(uservarname))
|
|
actor.uservar_defaults[uservarname] = extenseionactor.uservar_defaults[uservarname];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// validate user variables (no variables should shadow parent variables)
|
|
foreach (ZScriptClassStructure cls in allclasseslist)
|
|
{
|
|
ActorStructure actor = cls.Actor;
|
|
if (actor == null)
|
|
continue;
|
|
ActorStructure actorbase = actor.baseclass;
|
|
while (actorbase != null)
|
|
{
|
|
foreach (string uservar in actor.uservars.Keys)
|
|
{
|
|
if (actorbase.uservars.ContainsKey(uservar))
|
|
{
|
|
actor.uservars.Clear();
|
|
ReportError("Variable \"" + uservar + "\" in class \"" + actor.classname + "\" shadows variable \"" + uservar + "\" in base class \"" + actorbase.classname + "\". This is not supported");
|
|
goto stopValidatingCompletely;
|
|
}
|
|
}
|
|
|
|
actorbase = actorbase.baseclass;
|
|
}
|
|
}
|
|
stopValidatingCompletely:
|
|
datastream = odatastream;
|
|
return true;
|
|
}
|
|
|
|
#endregion
|
|
|
|
#region ================== Methods
|
|
|
|
protected override int GetCurrentLineNumber()
|
|
{
|
|
prevstreamposition = (tokenizer != null) ? tokenizer.LastPosition : -1;
|
|
return base.GetCurrentLineNumber();
|
|
}
|
|
|
|
/// <summary>
|
|
/// This returns a supported actor by name. Returns null when no supported actor with the specified name can be found. This operation is of O(1) complexity.
|
|
/// </summary>
|
|
public ActorStructure GetActorByName(string name)
|
|
{
|
|
name = name.ToLowerInvariant();
|
|
return actors.ContainsKey(name) ? actors[name] : null;
|
|
}
|
|
|
|
/// <summary>
|
|
/// This returns a supported actor by DoomEdNum. Returns null when no supported actor with the specified name can be found. Please note that this operation is of O(n) complexity!
|
|
/// </summary>
|
|
public ActorStructure GetActorByDoomEdNum(int doomednum)
|
|
{
|
|
foreach (ActorStructure a in actors.Values)
|
|
if (a.DoomEdNum == doomednum) return a;
|
|
return null;
|
|
}
|
|
|
|
// This returns an actor by name
|
|
// Returns null when actor cannot be found
|
|
internal ActorStructure GetArchivedActorByName(string name, bool unique)
|
|
{
|
|
Dictionary<string, ActorStructure> dict = (unique) ? realarchivedactors : archivedactors;
|
|
name = name.ToLowerInvariant();
|
|
return (dict.ContainsKey(name) ? dict[name] : null);
|
|
}
|
|
|
|
internal void ClearActors()
|
|
{
|
|
// Initialize
|
|
actors = new Dictionary<string, ActorStructure>(StringComparer.OrdinalIgnoreCase);
|
|
archivedactors = new Dictionary<string, ActorStructure>(StringComparer.OrdinalIgnoreCase);
|
|
realarchivedactors = new Dictionary<string, ActorStructure>(StringComparer.OrdinalIgnoreCase);
|
|
parsedlumps = new HashSet<string>(StringComparer.OrdinalIgnoreCase); //mxd
|
|
allclasses = new Dictionary<string, ZScriptClassStructure>();
|
|
allclasseslist = new List<ZScriptClassStructure>();
|
|
mixinclasses = new Dictionary<string, ZScriptClassStructure>();
|
|
mixinclasseslist = new List<ZScriptClassStructure>();
|
|
}
|
|
|
|
#endregion
|
|
|
|
}
|
|
}
|