/// <summary>
/// Generates a xml from the specified char stream of the source code.
/// </summary>
/// <param name="charStream"></param>
/// <param name="parsingCompleteCode"></param>
/// <param name="throwingParseError"></param>
/// <returns></returns>
protected CstNode GenerateSyntaxTree(
ICharStream charStream, bool parsingCompleteCode, bool throwingParseError)
{
var tokenStream = CreateTokenStream(charStream);
var parser = CreateParser(tokenStream);
parser.TraceDestination = Console.Error;
if (!parsingCompleteCode)
{
return(ParseFragment(parser, tokenStream));
}
var builder = throwingParseError ?
new CstBuilderForAntlr3WithReportingError(tokenStream, parser.TokenNames) :
new CstBuilderForAntlr3(tokenStream, parser.TokenNames);
parser.TreeAdaptor = builder;
return(builder.FinishParsing(Parse(parser)));
}
/// <summary> /// Creates and returns a lexer. /// </summary> /// <param name="stream"></param> /// <returns></returns> protected abstract ITokenSource CreateLexer(ICharStream stream);
/// <summary>
/// Creates a token stream which provides tokenized code.
/// </summary>
/// <param name="stream"></param>
/// <returns></returns>
private CommonTokenStream CreateTokenStream(ICharStream stream)
{
var lexer = CreateLexer(stream);
return(new CommonTokenStream(lexer));
}