125 Zeilen
3.3 KiB
PHP
125 Zeilen
3.3 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) 2005-2011 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 $Id$
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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) 2005-2011 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_StringTrim implements Zend_Filter_Interface
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{
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/**
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* List of characters provided to the trim() function
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*
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* If this is null, then trim() is called with no specific character list,
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* and its default behavior will be invoked, trimming whitespace.
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*
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* @var string|null
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*/
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protected $_charList;
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/**
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* Sets filter options
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*
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* @param string|array|Zend_Config $options
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* @return void
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*/
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public function __construct($options = null)
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{
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if ($options instanceof Zend_Config) {
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$options = $options->toArray();
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} else if (!is_array($options)) {
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$options = func_get_args();
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$temp['charlist'] = array_shift($options);
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$options = $temp;
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}
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if (array_key_exists('charlist', $options)) {
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$this->setCharList($options['charlist']);
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}
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}
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/**
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* Returns the charList option
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*
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* @return string|null
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*/
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public function getCharList()
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{
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return $this->_charList;
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}
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/**
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* Sets the charList option
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*
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* @param string|null $charList
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* @return Zend_Filter_StringTrim Provides a fluent interface
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*/
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public function setCharList($charList)
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{
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$this->_charList = $charList;
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return $this;
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}
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/**
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* Defined by Zend_Filter_Interface
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*
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* Returns the string $value with characters stripped from the beginning and end
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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 (null === $this->_charList) {
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return $this->_unicodeTrim((string) $value);
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} else {
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return $this->_unicodeTrim((string) $value, $this->_charList);
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}
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}
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/**
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* Unicode aware trim method
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* Fixes a PHP problem
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*
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* @param string $value
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* @param string $charlist
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* @return string
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*/
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protected function _unicodeTrim($value, $charlist = '\\\\s')
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{
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$chars = preg_replace(
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array( '/[\^\-\]\\\]/S', '/\\\{4}/S', '/\//'),
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array( '\\\\\\0', '\\', '\/' ),
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$charlist
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);
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$pattern = '^[' . $chars . ']*|[' . $chars . ']*$';
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return preg_replace("/$pattern/sSD", '', $value);
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}
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}
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