mirror of
https://github.com/marcin-szczepanski/jFuzzyLogic.git
synced 2024-08-16 18:06:57 +02:00
85 lines
3.0 KiB
Java
85 lines
3.0 KiB
Java
/*
|
|
[The "BSD licence"]
|
|
Copyright (c) 2005-2006 Terence Parr
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
1. Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
2. Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
3. The name of the author may not be used to endorse or promote products
|
|
derived from this software without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
package org.antlr.analysis;
|
|
|
|
/** A generic transition between any two state machine states. It defines
|
|
* some special labels that indicate things like epsilon transitions and
|
|
* that the label is actually a set of labels or a semantic predicate.
|
|
* This is a one way link. It emanates from a state (usually via a list of
|
|
* transitions) and has a label/target pair. I have abstracted the notion
|
|
* of a Label to handle the various kinds of things it can be.
|
|
*/
|
|
public class Transition implements Comparable {
|
|
/** What label must be consumed to transition to target */
|
|
public Label label;
|
|
|
|
/** The target of this transition */
|
|
public State target;
|
|
|
|
public Transition(Label label, State target) {
|
|
this.label = label;
|
|
this.target = target;
|
|
}
|
|
|
|
public Transition(int label, State target) {
|
|
this.label = new Label(label);
|
|
this.target = target;
|
|
}
|
|
|
|
public boolean isEpsilon() {
|
|
return label.isEpsilon();
|
|
}
|
|
|
|
public boolean isAction() {
|
|
return label.isAction();
|
|
}
|
|
|
|
public boolean isSemanticPredicate() {
|
|
return label.isSemanticPredicate();
|
|
}
|
|
|
|
public int hashCode() {
|
|
return label.hashCode() + target.stateNumber;
|
|
}
|
|
|
|
public boolean equals(Object o) {
|
|
Transition other = (Transition)o;
|
|
return this.label.equals(other.label) &&
|
|
this.target.equals(other.target);
|
|
}
|
|
|
|
public int compareTo(Object o) {
|
|
Transition other = (Transition)o;
|
|
return this.label.compareTo(other.label);
|
|
}
|
|
|
|
public String toString() {
|
|
return label+"->"+target.stateNumber;
|
|
}
|
|
}
|