gi
Class Lexicon.Singleton

java.lang.Object
  |
  +--gi.Lexicon.Expression
        |
        +--gi.Lexicon.Singleton

Enclosing class:

Lexicon

protected static class Lexicon.Singleton

extends Lexicon.Expression

This class implements an Expression denoting the set containing a string.

Version:

1.0

Author:

© 1999-2000 Craig A. Rich <carich@acm.org>

Field Summary

(package private) Integer	accept The accept state of the NFA recognizing the language denoted by this Expression.
(package private) Integer	initial The initial state of the NFA recognizing the language denoted by this Expression.
private String	string The string whose singleton set is denoted.

Constructor Summary

Lexicon.Singleton(String string)
Constructs an Expression denoting the set containing a string.

Method Summary

(package private) Lexicon.Expression

copy() Creates a copy of this Expression.

Methods inherited from class java.lang.Object

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

Field Detail

string

private final String string

The string whose singleton set is denoted.

accept

Integer accept

The accept state of the NFA recognizing the language denoted by this Expression.

initial

Integer initial

The initial state of the NFA recognizing the language denoted by this Expression.

Constructor Detail

Lexicon.Singleton

public Lexicon.Singleton(String string)

Constructs an Expression denoting the set containing a string. An NFA recognizing the language denoted by this Expression is constructed.

Parameters:

string - the string whose singleton set is denoted.

Method Detail

copy

Lexicon.Expression copy()

Creates a copy of this Expression. The NFA recognizing the language denoted by this Expression is replicated.

Specified by:

copy in class Lexicon.Expression

Returns:

a copy of this Expression.