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'databene webdecs' is an open source software library for
WEB Data Extraction, Conversion and Scripting, written by Volker Bergmann.
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/*
* (c) Copyright 2007-2009 by Volker Bergmann. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, is permitted under the terms of the
* GNU General Public License.
*
* For redistributing this software or a derivative work under a license other
* than the GPL-compatible Free Software License as defined by the Free
* Software Foundation or approved by OSI, you must first obtain a commercial
* license to this software product from Volker Bergmann.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS,
* REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE
* HEREBY EXCLUDED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 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.databene.regex;
/**
* Represents a regular expression part composed of a SubPattern and a Quantifier.
*
* Created: 18.08.2006 19:11:31
*/
public class Factor {
/** The sub pattern */
private Object atom;
/** The quantifier */
private Quantifier quantifier;
// constructors ----------------------------------------------------------------------------------------------------
public Factor(Object pattern) {
this(pattern, 1, 1);
}
public Factor(Object atom, int minQuantity, Integer maxQuantity) {
this(atom, new Quantifier(minQuantity, maxQuantity));
}
public Factor(Object atom, Quantifier quantifier) {
this.atom = atom;
this.quantifier = quantifier;
}
// properties ------------------------------------------------------------------------------------------------------
/** Returns the atom */
public Object getAtom() {
return atom;
}
/** Returns the represented quantifier */
public Quantifier getQuantifier() {
return quantifier;
}
// java.lang.Object overrides --------------------------------------------------------------------------------------
/**
* @see java.lang.Object#equals(Object)
*/
@Override
public boolean equals(Object o) {
if (this == o)
return true;
if (o == null || getClass() != o.getClass())
return false;
final Factor regexPart = (Factor) o;
if (!atom.equals(regexPart.atom))
return false;
return quantifier.equals(regexPart.quantifier);
}
/**
* @see java.lang.Object#equals(Object)
*/
@Override
public int hashCode() {
return 29 * atom.hashCode() + quantifier.hashCode();
}
/**
* @see java.lang.Object#equals(Object)
*/
@Override
public String toString() {
return atom.toString() + quantifier.toString();
}
}