| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 2003 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 "Apache" 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 |
| * XMLBeans", 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) 2000-2003 BEA Systems |
| * Inc., <http://www.bea.com/>. For more information on the Apache Software |
| * Foundation, please see <http://www.apache.org/>. |
| */ |
| |
| package org.apache.xmlbeans.impl.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> |
| */ |
| 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; |
| } |
| } |