easyIO

Interface Recognizer

All Known Implementing Classes:

PredictiveRecognizer

public interface Recognizer

A Recognizer recognizes certain input sequences of characters available on a BacktrackScanner, and invokes a continuation for each recognized sequence.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	Recognizer.Continuation The remainder of a computation that can be performed after recognizing input.
static class	Recognizer.Success Represents successful matching of the input stream by a recognizer.

Method Summary

Modifier and Type	Method and Description
void	recognize(BacktrackScanner inp, Recognizer.Continuation cont) For each possible way of recognizing the input, advance inp past the point where the input is recognized and invoke cont.

Method Detail

recognize

void recognize(BacktrackScanner inp,
               Recognizer.Continuation cont)
        throws Recognizer.Success

For each possible way of recognizing the input, advance inp past the point where the input is recognized and invoke cont. If the continuation throws Success, leave the input position where it is and throw the same exception to the caller.

Throws:

Recognizer.Success