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diff --git a/buildscripts/phing/classes/phing/filters/ReplaceRegexp.php b/buildscripts/phing/classes/phing/filters/ReplaceRegexp.php
new file mode 100755
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+++ b/buildscripts/phing/classes/phing/filters/ReplaceRegexp.php
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+<?php
+
+/*
+ *  $Id: 3ea7f569d0f0b1c4d0f057c9f7f8969cb829f2cb $
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS 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 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.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the LGPL. For more information please see
+ * <http://phing.info>.
+*/
+
+require_once 'phing/filters/BaseFilterReader.php';
+include_once 'phing/filters/ChainableReader.php';
+include_once 'phing/types/RegularExpression.php';
+
+/**
+ * Performs a regexp find/replace on stream.
+ * <p>
+ * Example:<br>
+ * <pre>
+ * <replaceregexp>
+ *    <regexp pattern="\r\n" replace="\n"/>
+ *    <regexp pattern="(\w+)\.xml" replace="\1.php" ignoreCase="true"/>
+ * </replaceregexp>
+ * </pre>
+ *
+ * @author    Hans Lellelid <hans@xmpl.org>
+ * @version   $Id$
+ * @package   phing.filters
+ */
+class ReplaceRegexp extends BaseFilterReader implements ChainableReader {
+    
+    /**
+     * @var array RegularExpression[]
+     */
+    private $regexps = array();            
+    
+    /**
+     * Creator method handles nested <regexp> tags.
+     * @return RegularExpression
+     */
+    function createRegexp() {
+        $num = array_push($this->regexps, new RegularExpression());
+        return $this->regexps[$num-1];
+    }
+    
+    /**
+     * Sets the current regexps.
+     * (Used when, e.g., cloning/chaining the method.)
+     * @param array RegularExpression[]
+     */
+    function setRegexps($regexps) {
+        $this->regexps = $regexps;
+    }
+    
+    /**
+     * Gets the current regexps.
+     * (Used when, e.g., cloning/chaining the method.)
+     * @return array RegularExpression[]
+     */    
+    function getRegexps() {
+        return $this->regexps;
+    }
+    
+    /**
+     * Returns the filtered stream. 
+     * The original stream is first read in fully, and the regex replace is performed.
+     * 
+     * @param int $len Required $len for Reader compliance.
+     * 
+     * @return mixed The filtered stream, or -1 if the end of the resulting stream has been reached.
+     * 
+     * @exception IOException if the underlying stream throws an IOException
+     * during reading
+     */
+    function read($len = null) {
+                
+        $buffer = $this->in->read($len);
+        
+        if($buffer === -1) {
+            return -1;
+        }
+
+        // perform regex replace here ...
+        foreach($this->regexps as $exptype) {
+            $regexp = $exptype->getRegexp($this->project);
+            try {
+                $buffer = $regexp->replace($buffer);
+                $this->log("Performing regexp replace: /".$regexp->getPattern()."/".$regexp->getReplace()."/g".$regexp->getModifiers(), Project::MSG_VERBOSE);
+            } catch (Exception $e) {
+                // perhaps mismatch in params (e.g. no replace or pattern specified)
+                $this->log("Error performing regexp replace: " . $e->getMessage(), Project::MSG_WARN);
+            }
+        }
+        
+        return $buffer;
+    }
+
+    /**
+     * Creates a new ReplaceRegExp filter using the passed in
+     * Reader for instantiation.
+     * 
+     * @param Reader $reader A Reader object providing the underlying stream.
+     *               Must not be <code>null</code>.
+     * 
+     * @return ReplaceRegExp A new filter based on this configuration, but filtering
+     *         the specified reader
+     */
+    function chain(Reader $reader) {
+        $newFilter = new ReplaceRegExp($reader);
+        $newFilter->setProject($this->getProject());
+        $newFilter->setRegexps($this->getRegexps());
+        return $newFilter;
+    }
+
+}
+
+