Add nested <mapper>s to <pathconvert>.

PR: 26364
Submitted by:	Peter Reilly


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@276173 13f79535-47bb-0310-9956-ffa450edef68

WHATSNEW

@@ -72,6 +72,8 @@ Other changes:
 
 * Docs fixes for xmlvalidate.html. Bugzilla Report 27092.
 
+* <pathconvert> now accepts nested <mapper>s.  Bugzilla Report 26364.
+
 Changes from Ant 1.6.0 to Ant 1.6.1
 =============================================
 

docs/manual/CoreTasks/pathconvert.html

@@ -19,6 +19,9 @@ of files in a FileList into a path.
 </p>
 <p>Nested <code>&lt;map&gt;</code> elements can be specified to map Windows
 drive letters to Unix paths, and vice-versa.</p>
+<p>More complex transformations can be achieved using a nested
+<a href="../CoreTypes/mapper.html"><code>&lt;mapper&gt;</code></a>.
+</p>
 
 <h3>Parameters</h3>
 <table border="1" cellpadding="2" cellspacing="0">
@@ -114,6 +117,11 @@ prefixes of other <code>from</code> values.</i>
 <p>If the <code>refid</code> attribute is not specified, then a
    nested <code>&lt;path&gt;</code> element must be supplied.  See
    <a href="../using.html#path">Path-like Structures</a> for details.</p>
+<h4>mapper</h4>
+<p>A single nested <a href="../CoreTypes/mapper.html">
+<code>&lt;mapper&gt;</code></a> element can be specified
+to perform any of various filename transformations.
+</p>
 
 <h3>Examples</h3>
 <p>In the examples below, assume that the <code>${wl.home}</code> property

src/main/org/apache/tools/ant/taskdefs/PathConvert.java

@@ -19,6 +19,8 @@ package org.apache.tools.ant.taskdefs;
 import java.io.File;
 import java.util.StringTokenizer;
 import java.util.Vector;
+import java.util.List;
+import java.util.ArrayList;
 import org.apache.tools.ant.BuildException;
 import org.apache.tools.ant.Project;
 import org.apache.tools.ant.Task;
@@ -29,6 +31,8 @@ import org.apache.tools.ant.types.FileList;
 import org.apache.tools.ant.types.FileSet;
 import org.apache.tools.ant.types.Path;
 import org.apache.tools.ant.types.Reference;
+import org.apache.tools.ant.types.Mapper;
+import org.apache.tools.ant.util.FileNameMapper;
 
 /**
  * Converts path and classpath information to a specific target OS
@@ -83,6 +87,9 @@ public class PathConvert extends Task {
      */
     private String dirSep = null;
 
+    /** Filename mapper */
+    private Mapper mapper = null;
+
     /**
      * constructor
      */
@@ -352,6 +359,18 @@ public class PathConvert extends Task {
             // Get the list of path components in canonical form
             String[] elems = path.list();
 
+            if (mapper != null) {
+                FileNameMapper impl = mapper.getImplementation();
+                List ret = new ArrayList();
+                for (int i = 0; i < elems.length; ++i) {
+                    String[] mapped = impl.mapFileName(elems[i]);
+                    for (int m = 0; mapped != null && m < mapped.length; ++m) {
+                        ret.add(mapped[m]);
+                    }
+                }
+                elems = (String[]) ret.toArray(new String[] {});
+            }
+
             for (int i = 0; i < elems.length; i++) {
                 String elem = elems[i];
 
@@ -435,6 +454,18 @@ public class PathConvert extends Task {
         return elem;
     }
 
+    /**
+     * Add a mapper to convert the file names.
+     *
+     * @param mapper a <code>Mapper</code> value
+     */
+    public void addMapper(Mapper mapper) {
+        if (this.mapper != null) {
+            throw new BuildException(
+                "Cannot define more than one mapper");
+        }
+        this.mapper = mapper;
+    }
 
     /**
      * Validate that all our parameters have been properly initialized.