gi
Class Lexicon.Match

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

Direct Known Subclasses:

Lexicon.NonMatch

Enclosing class:

Lexicon

protected static class Lexicon.Match

extends Lexicon.Alphabet

This class implements an Alphabet containing some characters.

Version:

1.2

Author:

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

Field Summary

(package private) Object

A The Character or String representing this Alphabet.

Fields inherited from class gi.Lexicon.Expression

f, i

Constructor Summary

	Lexicon.Match(char a) Constructs an Alphabet containing one character, and builds the NFA constructed from this Expression.
private	Lexicon.Match(Integer i, char a, Integer f) Constructs an Alphabet containing one character, and builds the NFA constructed from this Expression.
private	Lexicon.Match(Integer i, Object A, Integer f) Constructs an Alphabet containing some characters, and builds the NFA constructed from this Expression.
	Lexicon.Match(Object A) Constructs an Alphabet containing some characters, 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

Field Detail

A

final Object A

The Character or String representing this Alphabet.

Constructor Detail

Lexicon.Match

public Lexicon.Match(char a)

Constructs an Alphabet containing one character, and builds the NFA constructed from this Expression.

Parameters:

a - the character in this Alphabet.

Lexicon.Match

private Lexicon.Match(Integer i,
                      char a,
                      Integer f)

Constructs an Alphabet containing one character, and builds the NFA constructed from this Expression.

Parameters:

i - the initial state of the NFA constructed.

a - the character in this Alphabet.

f - the final state of the NFA constructed.

Lexicon.Match

private Lexicon.Match(Integer i,
                      Object A,
                      Integer f)

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

Parameters:

i - the initial state of the NFA constructed.

A - the Character or String of characters in this Alphabet.

f - the final state of the NFA constructed.

Lexicon.Match

public Lexicon.Match(Object A)

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

Parameters:

A - the Character or String of characters in this Alphabet.

Method Detail

contains

boolean contains(char a)

Indicates whether a character occurs in this Alphabet.

Specified by:

contains in class Lexicon.Alphabet

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.

Specified by:

copy in class Lexicon.Expression

Returns:

a copy of this Alphabet.