private bool GetParser(string childTokenKeyword, out IDefParser defParser)
{
// uses parsers in place
bool result = ParserKeywordRegistry.TryGetValue(childTokenKeyword, out IDefParser keywordParser);
if (!result)
{
defParser = default;
return(false);
}
defParser = keywordParser.Clone();
return(true);
}
private void ParseNode(IDefParser parentParser, IDefParser defParser, TokenNode rootToken, List <ParsingError> errors)
{
if (rootToken.Data != null)
{
try
{
defParser.ParseOptions(rootToken.Options);
}
catch (Exception e)
{
errors.Add(new ParsingError
{
Node = rootToken,
Exception = e,
});
}
}
if (rootToken.Children == null)
{
throw new InvalidOperationException($"Expected keyword token to contain children: {rootToken}, parentParser: {parentParser}");
}
foreach (TokenNode childToken in rootToken.Children)
{
try
{
switch (childToken.Type)
{
case TokenType.KEYWORD:
if (childToken.IsLeaf)
{
try
{
defParser.ParseCue(childToken.Keyword, childToken.Data);
}
catch (Exception e)
{
errors.Add(new ParsingError
{
Node = childToken,
Exception = e,
});
}
}
else
{
if (!GetParser(childToken.Keyword, out IDefParser subParser))
{
throw new InvalidOperationException($"Unknown top-level token keyword: {childToken.Keyword}");
}
Type subtype = subParser.DefType;
object subdata = Activator.CreateInstance(subtype);
subParser.Def = subdata;
ParseNode(defParser, subParser, childToken, errors);
subParser.Def = null;
// object data = //n
// childToken.Keyword
try
{
defParser.ParseChildToken(subdata);
}
catch (Exception e)
{
errors.Add(new ParsingError
{
Node = childToken,
Exception = e,
});
}
}
break;
case TokenType.MISC:
if (childToken.Content != null)
{
defParser.ParseMisc(childToken.Content);
}
break;
case TokenType.BREAK:
defParser.ParseBreak();
break;
default:
ZLog.Warn($"Unhandled token type: {childToken.Type}");
break;
}
}
catch (Exception e)
{
errors.Add(new ParsingError
{
Node = childToken,
Exception = e,
});
}
}
}
public void Register(IDefParser defParser)
{
ParserKeywordRegistry[defParser.Keyword] = defParser;
ParserTypeRegistry[defParser.DefType] = defParser;
}
