137 lines
3.7 KiB
PHP
137 lines
3.7 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: Alnum.php 14560 2009-03-31 14:41:22Z 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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* @see Zend_Locale
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*/
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require_once 'Zend/Locale.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_Alnum implements Zend_Filter_Interface
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{
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/**
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* Whether to allow white space characters; off by default
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*
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* @var boolean
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* @depreciated
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*/
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public $allowWhiteSpace;
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/**
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* Is PCRE is compiled with UTF-8 and Unicode support
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*
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* @var mixed
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**/
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protected static $_unicodeEnabled;
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/**
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* Locale in browser.
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*
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* @var Zend_Locale object
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*/
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protected $_locale;
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/**
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* The Alphabet means english alphabet.
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*
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* @var boolean
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*/
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protected static $_meansEnglishAlphabet;
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/**
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* Sets default option values for this instance
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*
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* @param boolean $allowWhiteSpace
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* @return void
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*/
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public function __construct($allowWhiteSpace = false)
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{
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$this->allowWhiteSpace = (boolean) $allowWhiteSpace;
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if (null === self::$_unicodeEnabled) {
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self::$_unicodeEnabled = (@preg_match('/\pL/u', 'a')) ? true : false;
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}
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if (null === self::$_meansEnglishAlphabet) {
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$this->_locale = new Zend_Locale('auto');
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self::$_meansEnglishAlphabet = in_array($this->_locale->getLanguage(),
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array('ja', 'ko', 'zh')
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);
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}
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}
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/**
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* Returns the allowWhiteSpace option
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*
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* @return boolean
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*/
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public function getAllowWhiteSpace()
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{
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return $this->allowWhiteSpace;
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}
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/**
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* Sets the allowWhiteSpace option
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*
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* @param boolean $allowWhiteSpace
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* @return Zend_Filter_Alnum Provides a fluent interface
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*/
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public function setAllowWhiteSpace($allowWhiteSpace)
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{
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$this->allowWhiteSpace = (boolean) $allowWhiteSpace;
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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, removing all but alphabetic and digit characters
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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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$whiteSpace = $this->allowWhiteSpace ? '\s' : '';
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if (!self::$_unicodeEnabled) {
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// POSIX named classes are not supported, use alternative a-zA-Z0-9 match
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$pattern = '/[^a-zA-Z0-9' . $whiteSpace . ']/';
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} else if (self::$_meansEnglishAlphabet) {
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//The Alphabet means english alphabet.
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$pattern = '/[^a-zA-Z0-9' . $whiteSpace . ']/u';
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} else {
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//The Alphabet means each language's alphabet.
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$pattern = '/[^\p{L}\p{N}' . $whiteSpace . ']/u';
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}
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return preg_replace($pattern, '', (string) $value);
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}
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}
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