gi
Class Lexicon.NonMatch

java.lang.Object
  gi.Lexicon.Expression
      gi.Lexicon.Alphabet
          gi.Lexicon.Match
              gi.Lexicon.NonMatch

Enclosing class:

Lexicon

protected static class Lexicon.NonMatch

extends Lexicon.Match

This class implements an Alphabet containing all except some characters.

Version:

1.2

Author:

© 1999-2004 Craig A. Rich <carich@csupomona.edu>

Field Summary

Fields inherited from class gi.Lexicon.Match

A

Fields inherited from class gi.Lexicon.Expression

f, i

Constructor Summary

Lexicon.NonMatch(char a)
Constructs an Alphabet containing all characters except one, and builds the NFA constructed from this Expression.

Lexicon.NonMatch(Object A)
Constructs an Alphabet containing all characters except some, and builds the NFA constructed from this Expression.

Method Summary

(package private) boolean	contains(char a) Indicates whether a character occurs in this Alphabet.
(package private) Lexicon.Expression	copy() Creates a copy of this Alphabet, and replicates the NFA constructed from this Expression.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Lexicon.NonMatch

public Lexicon.NonMatch(char a)

Constructs an Alphabet containing all characters except one, and builds the NFA constructed from this Expression.

Parameters:

a - the character not in this Alphabet.

Lexicon.NonMatch

public Lexicon.NonMatch(Object A)

Constructs an Alphabet containing all characters except some, and builds the NFA constructed from this Expression.

Parameters:

A - the Character or String of characters not in this Alphabet.

Method Detail

contains

boolean contains(char a)

Indicates whether a character occurs in this Alphabet.

Overrides:

contains in class Lexicon.Match

Parameters:

a - the character whose status is requested.

Returns:

true if a occurs in this Alphabet; false otherwise.

copy

Lexicon.Expression copy()

Creates a copy of this Alphabet, and replicates the NFA constructed from this Expression.

Overrides:

copy in class Lexicon.Match

Returns:

a copy of this Alphabet.