157 lines
3.9 KiB
PHP
157 lines
3.9 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Filter
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: PregReplace.php 8064 2008-02-16 10:58:39Z thomas $
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*/
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/**
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* @see Zend_Filter_Interface
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*/
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require_once 'Zend/Filter/Interface.php';
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/**
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* @category Zend
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* @package Zend_Filter
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* @copyright Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Filter_PregReplace implements Zend_Filter_Interface
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{
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/**
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* Pattern to match
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* @var mixed
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*/
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protected $_matchPattern = null;
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/**
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* Replacement pattern
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* @var mixed
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*/
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protected $_replacement = '';
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/**
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* Is unicode enabled?
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*
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* @var bool
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*/
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static protected $_unicodeSupportEnabled = null;
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/**
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* Is Unicode Support Enabled Utility function
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*
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* @return bool
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*/
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static public function isUnicodeSupportEnabled()
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{
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if (self::$_unicodeSupportEnabled === null) {
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self::_determineUnicodeSupport();
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}
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return self::$_unicodeSupportEnabled;
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}
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/**
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* Method to cache the regex needed to determine if unicode support is available
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*
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* @return bool
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*/
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static protected function _determineUnicodeSupport()
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{
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self::$_unicodeSupportEnabled = (@preg_match('/\pL/u', 'a')) ? true : false;
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}
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/**
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* Constructor
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*
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* @param string $match
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* @param string $replace
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* @return void
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*/
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public function __construct($matchPattern = null, $replacement = null)
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{
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if ($matchPattern) {
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$this->setMatchPattern($matchPattern);
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}
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if ($replacement) {
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$this->setReplacement($replacement);
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}
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}
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/**
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* Set the match pattern for the regex being called within filter()
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*
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* @param mixed $match - same as the first argument of preg_replace
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* @return Zend_Filter_PregReplace
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*/
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public function setMatchPattern($match)
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{
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$this->_matchPattern = $match;
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return $this;
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}
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/**
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* Get currently set match pattern
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*
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* @return string
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*/
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public function getMatchPattern()
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{
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return $this->_matchPattern;
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}
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/**
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* Set the Replacement pattern/string for the preg_replace called in filter
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*
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* @param mixed $replacement - same as the second argument of preg_replace
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* @return Zend_Filter_PregReplace
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*/
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public function setReplacement($replacement)
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{
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$this->_replacement = $replacement;
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return $this;
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}
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/**
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* Get currently set replacement value
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*
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* @return string
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*/
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public function getReplacement()
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{
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return $this->_replacement;
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}
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/**
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* Perform regexp replacement as filter
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*
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* @param string $value
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* @return string
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*/
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public function filter($value)
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{
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if ($this->_matchPattern == null) {
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require_once 'Zend/Filter/Exception.php';
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throw new Zend_Filter_Exception(get_class($this) . ' does not have a valid MatchPattern set.');
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}
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return preg_replace($this->_matchPattern, $this->_replacement, $value);
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}
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}
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