gi
Class Lexicon.Union

java.lang.Object
  gi.Lexicon.Expression
      gi.Lexicon.Union

Enclosing class:

Lexicon

protected static class Lexicon.Union

extends Lexicon.Expression

This class implements an Expression expressing the union of two regular languages.

Version:

1.2

Author:

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

Field Summary

private Lexicon.Expression	e1 The left operand Expression.
private Lexicon.Expression	e2 The right operand Expression.

Fields inherited from class gi.Lexicon.Expression

f, i

Constructor Summary

Lexicon.Union(Lexicon.Expression e1, Lexicon.Expression e2)
Constructs an Expression expressing the union of two regular languages, and builds the NFA constructed from this Expression.

Method Summary

(package private) Lexicon.Expression

copy() Creates a copy of this Expression, 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

e1

private final Lexicon.Expression e1

The left operand Expression.

e2

private final Lexicon.Expression e2

The right operand Expression.

Constructor Detail

Lexicon.Union

public Lexicon.Union(Lexicon.Expression e1,
                     Lexicon.Expression e2)

Constructs an Expression expressing the union of two regular languages, and builds the NFA constructed from this Expression.

Parameters:

e1 - the left operand Expression.

e2 - the right operand Expression.

Method Detail

copy

Lexicon.Expression copy()

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

Specified by:

copy in class Lexicon.Expression

Returns:

a copy of this Expression.