- /*
- * The Apache Software License, Version 1.1
- *
- *
- * Copyright (c) 1999-2002 The Apache Software Foundation. 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 end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Xerces" and "Apache Software Foundation" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * nor may "Apache" appear in their name, without prior written
- * permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
- * ITS 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.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation and was
- * originally based on software copyright (c) 1999, International
- * Business Machines, Inc., http://www.apache.org. For more
- * information on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
-
- package com.sun.org.apache.xerces.internal.impl.xpath.regex;
-
- import java.text.CharacterIterator;
-
- /**
- *
- * An instance of this class has ranges captured in matching.
- *
- * @see RegularExpression#matches(char[], int, int, Match)
- * @see RegularExpression#matches(char[], Match)
- * @see RegularExpression#matches(java.text.CharacterIterator, Match)
- * @see RegularExpression#matches(java.lang.String, int, int, Match)
- * @see RegularExpression#matches(java.lang.String, Match)
- * @author TAMURA Kent <kent@trl.ibm.co.jp>
- * @version $Id: Match.java,v 1.4 2002/08/09 15:18:17 neilg Exp $
- */
- public class Match implements Cloneable {
- int[] beginpos = null;
- int[] endpos = null;
- int nofgroups = 0;
-
- CharacterIterator ciSource = null;
- String strSource = null;
- char[] charSource = null;
-
- /**
- * Creates an instance.
- */
- public Match() {
- }
-
- /**
- *
- */
- public synchronized Object clone() {
- Match ma = new Match();
- if (this.nofgroups > 0) {
- ma.setNumberOfGroups(this.nofgroups);
- if (this.ciSource != null) ma.setSource(this.ciSource);
- if (this.strSource != null) ma.setSource(this.strSource);
- for (int i = 0; i < this.nofgroups; i ++) {
- ma.setBeginning(i, this.getBeginning(i));
- ma.setEnd(i, this.getEnd(i));
- }
- }
- return ma;
- }
-
- /**
- *
- */
- protected void setNumberOfGroups(int n) {
- int oldn = this.nofgroups;
- this.nofgroups = n;
- if (oldn <= 0
- || oldn < n || n*2 < oldn) {
- this.beginpos = new int[n];
- this.endpos = new int[n];
- }
- for (int i = 0; i < n; i ++) {
- this.beginpos[i] = -1;
- this.endpos[i] = -1;
- }
- }
-
- /**
- *
- */
- protected void setSource(CharacterIterator ci) {
- this.ciSource = ci;
- this.strSource = null;
- this.charSource = null;
- }
- /**
- *
- */
- protected void setSource(String str) {
- this.ciSource = null;
- this.strSource = str;
- this.charSource = null;
- }
- /**
- *
- */
- protected void setSource(char[] chars) {
- this.ciSource = null;
- this.strSource = null;
- this.charSource = chars;
- }
-
- /**
- *
- */
- protected void setBeginning(int index, int v) {
- this.beginpos[index] = v;
- }
-
- /**
- *
- */
- protected void setEnd(int index, int v) {
- this.endpos[index] = v;
- }
-
- /**
- * Return the number of regular expression groups.
- * This method returns 1 when the regular expression has no capturing-parenthesis.
- */
- public int getNumberOfGroups() {
- if (this.nofgroups <= 0)
- throw new IllegalStateException("A result is not set.");
- return this.nofgroups;
- }
-
- /**
- * Return a start position in the target text matched to specified regular expression group.
- *
- * @param index Less than <code>getNumberOfGroups()</code>.
- */
- public int getBeginning(int index) {
- if (this.beginpos == null)
- throw new IllegalStateException("A result is not set.");
- if (index < 0 || this.nofgroups <= index)
- throw new IllegalArgumentException("The parameter must be less than "
- +this.nofgroups+": "+index);
- return this.beginpos[index];
- }
-
- /**
- * Return an end position in the target text matched to specified regular expression group.
- *
- * @param index Less than <code>getNumberOfGroups()</code>.
- */
- public int getEnd(int index) {
- if (this.endpos == null)
- throw new IllegalStateException("A result is not set.");
- if (index < 0 || this.nofgroups <= index)
- throw new IllegalArgumentException("The parameter must be less than "
- +this.nofgroups+": "+index);
- return this.endpos[index];
- }
-
- /**
- * Return an substring of the target text matched to specified regular expression group.
- *
- * @param index Less than <code>getNumberOfGroups()</code>.
- */
- public String getCapturedText(int index) {
- if (this.beginpos == null)
- throw new IllegalStateException("match() has never been called.");
- if (index < 0 || this.nofgroups <= index)
- throw new IllegalArgumentException("The parameter must be less than "
- +this.nofgroups+": "+index);
- String ret;
- int begin = this.beginpos[index], end = this.endpos[index];
- if (begin < 0 || end < 0) return null;
- if (this.ciSource != null) {
- ret = REUtil.substring(this.ciSource, begin, end);
- } else if (this.strSource != null) {
- ret = this.strSource.substring(begin, end);
- } else {
- ret = new String(this.charSource, begin, end-begin);
- }
- return ret;
- }
- }