diff -r 000000000000 -r 4eba9c11703f web/Zend/Filter/PregReplace.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/Zend/Filter/PregReplace.php	Mon Dec 13 18:29:26 2010 +0100
@@ -0,0 +1,174 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to the new BSD license that is bundled
+ * with this package in the file LICENSE.txt.
+ * It is also available through the world-wide-web at this URL:
+ * http://framework.zend.com/license/new-bsd
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@zend.com so we can send you a copy immediately.
+ *
+ * @category   Zend
+ * @package    Zend_Filter
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: PregReplace.php 21085 2010-02-18 21:08:39Z thomas $
+ */
+
+/**
+ * @see Zend_Filter_Interface
+ */
+require_once 'Zend/Filter/Interface.php';
+
+/**
+ * @category   Zend
+ * @package    Zend_Filter
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_Filter_PregReplace implements Zend_Filter_Interface
+{
+    /**
+     * Pattern to match
+     * @var mixed
+     */
+    protected $_matchPattern = null;
+
+    /**
+     * Replacement pattern
+     * @var mixed
+     */
+    protected $_replacement = '';
+
+    /**
+     * Is unicode enabled?
+     *
+     * @var bool
+     */
+    static protected $_unicodeSupportEnabled = null;
+
+    /**
+     * Is Unicode Support Enabled Utility function
+     *
+     * @return bool
+     */
+    static public function isUnicodeSupportEnabled()
+    {
+        if (self::$_unicodeSupportEnabled === null) {
+            self::_determineUnicodeSupport();
+        }
+
+        return self::$_unicodeSupportEnabled;
+    }
+
+    /**
+     * Method to cache the regex needed to determine if unicode support is available
+     *
+     * @return bool
+     */
+    static protected function _determineUnicodeSupport()
+    {
+        self::$_unicodeSupportEnabled = (@preg_match('/\pL/u', 'a')) ? true : false;
+    }
+
+    /**
+     * Constructor
+     * Supported options are
+     *     'match'   => matching pattern
+     *     'replace' => replace with this
+     *
+     * @param  string|array $options
+     * @return void
+     */
+    public function __construct($options = null)
+    {
+        if ($options instanceof Zend_Config) {
+            $options = $options->toArray();
+        } else if (!is_array($options)) {
+            $options = func_get_args();
+            $temp    = array();
+            if (!empty($options)) {
+                $temp['match'] = array_shift($options);
+            }
+
+            if (!empty($options)) {
+                $temp['replace'] = array_shift($options);
+            }
+
+            $options = $temp;
+        }
+
+        if (array_key_exists('match', $options)) {
+            $this->setMatchPattern($options['match']);
+        }
+
+        if (array_key_exists('replace', $options)) {
+            $this->setReplacement($options['replace']);
+        }
+    }
+
+    /**
+     * Set the match pattern for the regex being called within filter()
+     *
+     * @param mixed $match - same as the first argument of preg_replace
+     * @return Zend_Filter_PregReplace
+     */
+    public function setMatchPattern($match)
+    {
+        $this->_matchPattern = $match;
+        return $this;
+    }
+
+    /**
+     * Get currently set match pattern
+     *
+     * @return string
+     */
+    public function getMatchPattern()
+    {
+        return $this->_matchPattern;
+    }
+
+    /**
+     * Set the Replacement pattern/string for the preg_replace called in filter
+     *
+     * @param mixed $replacement - same as the second argument of preg_replace
+     * @return Zend_Filter_PregReplace
+     */
+    public function setReplacement($replacement)
+    {
+        $this->_replacement = $replacement;
+        return $this;
+    }
+
+    /**
+     * Get currently set replacement value
+     *
+     * @return string
+     */
+    public function getReplacement()
+    {
+        return $this->_replacement;
+    }
+
+    /**
+     * Perform regexp replacement as filter
+     *
+     * @param  string $value
+     * @return string
+     */
+    public function filter($value)
+    {
+        if ($this->_matchPattern == null) {
+            require_once 'Zend/Filter/Exception.php';
+            throw new Zend_Filter_Exception(get_class($this) . ' does not have a valid MatchPattern set.');
+        }
+
+        return preg_replace($this->_matchPattern, $this->_replacement, $value);
+    }
+
+}