private ParsingEvent ParseDocumentStart(bool isImplicit)
{
if (!isImplicit)
{
while (this.GetCurrentToken() is DocumentEnd)
{
this.Skip();
}
}
if (isImplicit && (!(this.GetCurrentToken() is VersionDirective) && (!(this.GetCurrentToken() is TagDirective) && (!(this.GetCurrentToken() is DocumentStart) && !(this.GetCurrentToken() is StreamEnd)))))
{
TagDirectiveCollection directives = new TagDirectiveCollection();
this.ProcessDirectives(directives);
this.states.Push(ParserState.DocumentEnd);
this.state = ParserState.BlockNode;
return(new DocumentStart(null, directives, true, this.GetCurrentToken().Start, this.GetCurrentToken().End));
}
if (this.GetCurrentToken() is StreamEnd)
{
this.state = ParserState.StreamEnd;
ParsingEvent event3 = new StreamEnd(this.GetCurrentToken().Start, this.GetCurrentToken().End);
if (this.scanner.MoveNextWithoutConsuming())
{
throw new InvalidOperationException("The scanner should contain no more tokens.");
}
return(event3);
}
Mark start = this.GetCurrentToken().Start;
TagDirectiveCollection tags = new TagDirectiveCollection();
VersionDirective version = this.ProcessDirectives(tags);
Token currentToken = this.GetCurrentToken();
if (!(currentToken is DocumentStart))
{
throw new SemanticErrorException(currentToken.Start, currentToken.End, "Did not find expected <document start>.");
}
this.states.Push(ParserState.DocumentEnd);
this.state = ParserState.DocumentContent;
ParsingEvent event2 = new DocumentStart(version, tags, false, start, currentToken.End);
this.Skip();
return(event2);
}
void IParsingEventVisitor.Visit(DocumentStart e)
{
throw new NotSupportedException();
}
public void Visit(DocumentStart e)
{
}
public void Visit(DocumentStart e)
{
_emitter.Emit(e);
}
