Clover coverage report - Ant Coverage
Coverage timestamp: Tue Apr 8 2003 20:43:55 EST
file stats: LOC: 140   Methods: 5
NCLOC: 52   Classes: 1
 
 Source file Conditionals Statements Methods TOTAL
RegexpPatternMapper.java 0% 0% 0% 0%
 1   
 /*
 2   
  * The Apache Software License, Version 1.1
 3   
  *
 4   
  * Copyright (c) 2000,2002-2003 The Apache Software Foundation.  All rights
 5   
  * reserved.
 6   
  *
 7   
  * Redistribution and use in source and binary forms, with or without
 8   
  * modification, are permitted provided that the following conditions
 9   
  * are met:
 10   
  *
 11   
  * 1. Redistributions of source code must retain the above copyright
 12   
  *    notice, this list of conditions and the following disclaimer.
 13   
  *
 14   
  * 2. Redistributions in binary form must reproduce the above copyright
 15   
  *    notice, this list of conditions and the following disclaimer in
 16   
  *    the documentation and/or other materials provided with the
 17   
  *    distribution.
 18   
  *
 19   
  * 3. The end-user documentation included with the redistribution, if
 20   
  *    any, must include the following acknowlegement:
 21   
  *       "This product includes software developed by the
 22   
  *        Apache Software Foundation (http://www.apache.org/)."
 23   
  *    Alternately, this acknowlegement may appear in the software itself,
 24   
  *    if and wherever such third-party acknowlegements normally appear.
 25   
  *
 26   
  * 4. The names "Ant" and "Apache Software
 27   
  *    Foundation" must not be used to endorse or promote products derived
 28   
  *    from this software without prior written permission. For written
 29   
  *    permission, please contact apache@apache.org.
 30   
  *
 31   
  * 5. Products derived from this software may not be called "Apache"
 32   
  *    nor may "Apache" appear in their names without prior written
 33   
  *    permission of the Apache Group.
 34   
  *
 35   
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 36   
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 37   
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 38   
  * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 39   
  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 40   
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 41   
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 42   
  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 43   
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 44   
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 45   
  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 46   
  * SUCH DAMAGE.
 47   
  * ====================================================================
 48   
  *
 49   
  * This software consists of voluntary contributions made by many
 50   
  * individuals on behalf of the Apache Software Foundation.  For more
 51   
  * information on the Apache Software Foundation, please see
 52   
  * <http://www.apache.org/>.
 53   
  */
 54   
 
 55   
 package org.apache.tools.ant.util;
 56   
 
 57   
 import java.util.Vector;
 58   
 import org.apache.tools.ant.BuildException;
 59   
 import org.apache.tools.ant.util.regexp.RegexpMatcher;
 60   
 import org.apache.tools.ant.util.regexp.RegexpMatcherFactory;
 61   
 
 62   
 /**
 63   
  * Implementation of FileNameMapper that does regular expression
 64   
  * replacements.
 65   
  *
 66   
  * @author Stefan Bodewig
 67   
  */
 68   
 public class RegexpPatternMapper implements FileNameMapper {
 69   
     protected RegexpMatcher reg = null;
 70   
     protected char[] to = null;
 71   
     protected StringBuffer result = new StringBuffer();
 72   
 
 73  0
     public RegexpPatternMapper() throws BuildException {
 74  0
         reg = (new RegexpMatcherFactory()).newRegexpMatcher();
 75   
     }
 76   
     
 77   
     /**
 78   
      * Sets the &quot;from&quot; pattern. Required.
 79   
      */
 80  0
     public void setFrom(String from) throws BuildException {
 81  0
         try {
 82  0
             reg.setPattern(from);
 83   
         } catch (NoClassDefFoundError e) {
 84   
             // depending on the implementation the actual RE won't
 85   
             // get instantiated in the constructor.
 86  0
             throw new BuildException("Cannot load regular expression matcher",
 87   
                                      e);
 88   
         }
 89   
     }
 90   
 
 91   
     /**
 92   
      * Sets the &quot;to&quot; pattern. Required.
 93   
      */
 94  0
     public void setTo(String to) {
 95  0
         this.to = to.toCharArray();
 96   
     }
 97   
 
 98   
     /**
 99   
      * Returns null if the source file name doesn't match the
 100   
      * &quot;from&quot; pattern, an one-element array containing the
 101   
      * translated file otherwise.
 102   
      */
 103  0
     public String[] mapFileName(String sourceFileName) {
 104  0
         if (reg == null  || to == null
 105   
             || !reg.matches(sourceFileName)) {
 106  0
             return null;
 107   
         }
 108  0
         return new String[] {replaceReferences(sourceFileName)};
 109   
     }
 110   
 
 111   
     /**
 112   
      * Replace all backreferences in the to pattern with the matched
 113   
      * groups of the source.
 114   
      */
 115  0
     protected String replaceReferences(String source) {
 116  0
         Vector v = reg.getGroups(source);
 117   
         
 118  0
         result.setLength(0);
 119  0
         for (int i = 0; i < to.length; i++) {
 120  0
             if (to[i] == '\\') {
 121  0
                 if (++i < to.length) {
 122  0
                     int value = Character.digit(to[i], 10);
 123  0
                     if (value > -1) {
 124  0
                         result.append((String) v.elementAt(value));
 125   
                     } else {
 126  0
                         result.append(to[i]);
 127   
                     }
 128   
                 } else {
 129   
                     // XXX - should throw an exception instead?
 130  0
                     result.append('\\');
 131   
                 }
 132   
             } else {
 133  0
                 result.append(to[i]);
 134   
             }
 135   
         }
 136  0
         return result.substring(0);
 137   
     }
 138   
 
 139   
 }
 140