// This parses the given decorate stream
// Returns false on errors
public override bool Parse(TextResourceData data, bool clearerrors)
{
//mxd. Already parsed?
if (!base.AddTextResource(data))
{
if (clearerrors)
{
ClearError();
}
return(true);
}
// Cannot process?
if (!base.Parse(data, clearerrors))
{
return(false);
}
// [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, whatever.
{
break;
}
if (!token.IsValid)
{
ReportError("Expected preprocessor statement, const, enum or class declaraction, got " + token);
return(false);
}
// 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;
}
// check for $GZDB_SKIP
if (cmtval.Trim().ToLowerInvariant() == "$gzdb_skip")
{
return(true);
}
// 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);
}
if (!ParseInclude(include_name.Value))
{
return(false);
}
}
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, (regions.Count > 0 ? regions.Last() : null)))
{
return(false);
}
break;
case "class":
// todo parse class
if (!ParseClassOrStruct(false, false, (regions.Count > 0 ? regions.Last() : null)))
{
return(false);
}
break;
case "struct":
// todo parse struct
if (!ParseClassOrStruct(true, 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;
}
}
}
return(true);
}
internal bool Process()
{
RestoreStreamData();
bool isactor = false;
ZScriptClassStructure _pstruct = this;
while (_pstruct != null)
{
if (_pstruct.ClassName.ToLowerInvariant() == "actor")
{
isactor = true;
break;
}
if (_pstruct.ParentName != null)
{
string _pname = _pstruct.ParentName.ToLowerInvariant();
Parser.allclasses.TryGetValue(_pname, out _pstruct);
}
else
{
_pstruct = null;
}
}
string log_inherits = ((ParentName != null) ? "inherits " + ParentName : "");
if (ReplacementName != null)
{
log_inherits += ((log_inherits.Length > 0) ? ", " : "") + "replaces " + ReplacementName;
}
if (log_inherits.Length > 0)
{
log_inherits = " (" + log_inherits + ")";
}
if (isactor)
{
Actor = new ZScriptActorStructure(Parser, Region, ClassName, ReplacementName, ParentName);
if (Parser.HasError)
{
Actor = null;
return(false);
}
// check actor replacement.
Parser.archivedactors[Actor.ClassName.ToLowerInvariant()] = Actor;
Parser.realarchivedactors[Actor.ClassName.ToLowerInvariant()] = Actor;
if (Actor.CheckActorSupported())
{
Parser.actors[Actor.ClassName.ToLowerInvariant()] = Actor;
}
// Replace an actor?
if (Actor.ReplacesClass != null)
{
if (Parser.GetArchivedActorByName(Actor.ReplacesClass, false) != null)
{
Parser.archivedactors[Actor.ReplacesClass.ToLowerInvariant()] = Actor;
}
else
{
Parser.LogWarning("Unable to find \"" + Actor.ReplacesClass + "\" class to replace, while parsing \"" + Actor.ClassName + "\"");
}
if (Actor.CheckActorSupported() && Parser.GetActorByName(Actor.ReplacesClass) != null)
{
Parser.actors[Actor.ReplacesClass.ToLowerInvariant()] = Actor;
}
}
//mxd. Add to current text resource
if (!Parser.scriptresources[TextResourcePath].Entries.Contains(Actor.ClassName))
{
Parser.scriptresources[TextResourcePath].Entries.Add(Actor.ClassName);
}
}
//Parser.LogWarning(string.Format("Parsed {0}class {1}{2}", isactor?"actor ":"", ClassName, log_inherits));
return(true);
}
