public T Parse(SourceReader source)
{
CodeContract.RequiresArgumentNotNull(source, "source");
if (!m_isInitialized)
{
OnInitialize();
}
Scanner scanner = m_scanner;
scanner.SetSource(source);
ParserEngine engine = new ParserEngine(m_transitionTable, m_errorDefinition);
Lexeme r;
do
{
r = scanner.Read();
engine.Input(r);
} while (!r.IsEndOfStream);
object result = engine.GetResult(0, m_errorManager);
return((T)result);
}
public T Parse(SourceReader source)
{
CodeContract.RequiresArgumentNotNull(source, "source");
if (!m_isInitialized)
{
OnInitialize();
}
Scanner scanner = m_scanner;
scanner.SetSource(source);
ParserEngine engine = new ParserEngine(m_transitionTable, m_errorDefinition);
Lexeme r;
do
{
r = scanner.Read();
engine.Input(r);
} while (!r.IsEndOfStream);
if (engine.AcceptedCount == 0)
{
throw new ParsingFailureException("There's no parsing result");
}
if (engine.AcceptedCount > 1 && engine.GetResultInfo(0).ErrorCount == 0)
{
throw new ParsingFailureException("Multiple parsing results are found. There's ambiguity in your grammar");
}
object result = engine.GetResult(0, m_errorManager);
return((T)result);
}
public T Parse(SourceReader source)
{
CodeContract.RequiresArgumentNotNull(source, "source");
if (!m_isInitialized)
{
OnInitialize();
}
Scanner scanner = m_scanner;
scanner.SetSource(source);
ParserEngine engine = new ParserEngine(m_transitionTable, m_errorDefinition);
Lexeme r = scanner.Read();
while (true)
{
try
{
engine.Input(r);
}
catch (PanicRecoverException prex)
{
var follow = prex.PossibleFollow;
HashSet <int> validTokens = new HashSet <int>(follow.Select(p =>
{
Terminal t = p as Terminal;
if (t != null)
{
return(t.Token.Index);
}
else
{
return(m_scannerInfo.EndOfStreamTokenIndex);
}
}));
while (!validTokens.Contains(r.TokenIndex) && !r.IsEndOfStream)
{
r = scanner.Read();
}
continue;
}
if (r.IsEndOfStream)
{
break;
}
r = scanner.Read();
}
if (engine.AcceptedCount == 0)
{
throw new ParsingFailureException("There's no parsing result");
}
if (engine.AcceptedCount > 1 && engine.GetResultInfo(0).ErrorCount == 0)
{
throw new ParsingFailureException("Multiple parsing results are found. There's ambiguity in your grammar");
}
object result = engine.GetResult(0, m_errorManager);
return((T)result);
}
public T Parse(SourceReader source, CompilationErrorList errorList, CancellationToken ctoken)
{
CodeContract.RequiresArgumentNotNull(source, "source");
if (!m_isInitialized)
{
OnInitialize();
}
Scanner scanner;
scanner = new Scanner(m_scannerInfo);
scanner.SetTriviaTokens(m_triviaTokens.Select(t => t.Index).ToArray());
scanner.ErrorList = errorList;
scanner.RecoverErrors = true;
scanner.LexicalErrorId = m_errorDefinition.LexicalErrorId;
scanner.SetSource(source);
ParserEngine engine = new ParserEngine(m_transitionTable, m_errorDefinition);
engine.EnableDeletionRecovery = EnableDeletionRecovery;
engine.EnableInsertionRecovery = EnableInsertionRecovery;
engine.EnableReplacementRecovery = EnableReplacementRecovery;
Lexeme r = scanner.Read();
while (true)
{
try
{
engine.Input(r, ctoken);
}
catch (PanicRecoverException prex)
{
var follow = prex.PossibleFollow;
HashSet <int> validTokens = new HashSet <int>(follow.Select(p =>
{
Terminal t = p as Terminal;
if (t != null)
{
return(t.Token.Index);
}
else
{
return(m_scannerInfo.EndOfStreamTokenIndex);
}
}));
while (!validTokens.Contains(r.TokenIndex) && !r.IsEndOfStream)
{
r = scanner.Read();
}
continue;
}
if (r.IsEndOfStream)
{
break;
}
r = scanner.Read();
}
if (engine.AcceptedCount == 0)
{
throw new ParsingFailureException("There's no parsing result");
}
if (engine.AcceptedCount > 1 && engine.GetResultInfo(0).ErrorCount == 0)
{
throw new ParsingFailureException("Multiple parsing results are found. There's ambiguity in your grammar");
}
object result = engine.GetResult(0, errorList);
return((T)result);
}
