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Diffstat (limited to 'lib/Zend/Filter/PregReplace.php')
-rw-r--r-- | lib/Zend/Filter/PregReplace.php | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/lib/Zend/Filter/PregReplace.php b/lib/Zend/Filter/PregReplace.php new file mode 100644 index 0000000..7e6ab27 --- /dev/null +++ b/lib/Zend/Filter/PregReplace.php @@ -0,0 +1,156 @@ +<?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) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com) + * @license http://framework.zend.com/license/new-bsd New BSD License + * @version $Id: PregReplace.php 8064 2008-02-16 10:58:39Z thomas $ + */ + +/** + * @see Zend_Filter_Interface + */ +require_once 'Zend/Filter/Interface.php'; + +/** + * @category Zend + * @package Zend_Filter + * @copyright Copyright (c) 2005-2008 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 + * + * @param string $match + * @param string $replace + * @return void + */ + public function __construct($matchPattern = null, $replacement = null) + { + if ($matchPattern) { + $this->setMatchPattern($matchPattern); + } + + if ($replacement) { + $this->setReplacement($replacement); + } + } + + /** + * 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); + } + +} |