private void LexerTokenHandler(SymLexer aLexer, SymLexer.TEvent aEvent, SymToken aToken)
{
if (aEvent == SymLexer.TEvent.EEventLexingToken)
{
// Store the token
lock (this)
{
iMastermind.EnqueueLexedToken(aToken);
}
// and signal the worker thread if it is waiting...
if (iSemaphore.Count == 0)
{
iSemaphore.Signal();
}
}
else if (aEvent == SymLexer.TEvent.EEventLexingComplete)
{
lock (this)
{
iLexerFinished = true;
}
// and signal the worker thread if it is waiting...
if (iSemaphore.Count == 0)
{
iSemaphore.Signal();
}
}
}
public SymGrouper(SymLexer aLexer)
{
// The mastermind implements all the logic for grouping token runs into
// more sophisticated/logical token groupings.
iMastermind.MastermindObservers += new SymGrouperMastermind.MastermindObserver(MastermindObserver);
// Observe the lexer for tokens
aLexer.LexerObservers += new SymLexer.LexerObserver(LexerTokenHandler);
// Prepare worker thread
ThreadStart threadStart = new ThreadStart(DoGrouping);
iWorkerThread = new Thread(threadStart);
iWorkerThread.Name = "SymGrouperWorkerThread";
iWorkerThread.IsBackground = true;
iWorkerThread.Start();
}