375 Zeilen
9,8 KiB
PHP
375 Zeilen
9,8 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_Boolean implements Zend_Filter_Interface
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{
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const BOOLEAN = 1;
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const INTEGER = 2;
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const FLOAT = 4;
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const STRING = 8;
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const ZERO = 16;
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const EMPTY_ARRAY = 32;
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const NULL = 64;
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const PHP = 127;
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const FALSE_STRING = 128;
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const YES = 256;
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const ALL = 511;
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protected $_constants = array(
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self::BOOLEAN => 'boolean',
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self::INTEGER => 'integer',
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self::FLOAT => 'float',
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self::STRING => 'string',
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self::ZERO => 'zero',
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self::EMPTY_ARRAY => 'array',
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self::NULL => 'null',
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self::PHP => 'php',
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self::FALSE_STRING => 'false',
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self::YES => 'yes',
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self::ALL => 'all',
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);
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/**
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* Internal type to detect
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*
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* @var integer
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*/
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protected $_type = self::PHP;
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/**
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* Internal locale
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*
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* @var array
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*/
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protected $_locale = array('auto');
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/**
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* Internal mode
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*
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* @var boolean
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*/
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protected $_casting = true;
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/**
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* Constructor
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*
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* @param string|array|Zend_Config $options OPTIONAL
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*/
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public function __construct($options = null)
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{
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if ($options instanceof Zend_Config) {
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$options = $options->toArray();
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} elseif (!is_array($options)) {
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$options = func_get_args();
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$temp = array();
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if (!empty($options)) {
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$temp['type'] = array_shift($options);
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}
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if (!empty($options)) {
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$temp['casting'] = array_shift($options);
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}
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if (!empty($options)) {
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$temp['locale'] = array_shift($options);
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}
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$options = $temp;
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}
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if (array_key_exists('type', $options)) {
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$this->setType($options['type']);
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}
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if (array_key_exists('casting', $options)) {
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$this->setCasting($options['casting']);
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}
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if (array_key_exists('locale', $options)) {
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$this->setLocale($options['locale']);
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}
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}
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/**
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* Returns the set null types
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*
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* @return int
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*/
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public function getType()
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{
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return $this->_type;
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}
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/**
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* Set the null types
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*
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* @param integer|array $type
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* @throws Zend_Filter_Exception
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* @return Zend_Filter_Boolean
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*/
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public function setType($type = null)
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{
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if (is_array($type)) {
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$detected = 0;
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foreach($type as $value) {
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if (is_int($value)) {
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$detected += $value;
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} elseif (in_array($value, $this->_constants)) {
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$detected += array_search($value, $this->_constants);
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}
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}
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$type = $detected;
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} elseif (is_string($type) && in_array($type, $this->_constants)) {
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$type = array_search($type, $this->_constants);
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}
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if (!is_int($type) || ($type < 0) || ($type > self::ALL)) {
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require_once 'Zend/Filter/Exception.php';
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throw new Zend_Filter_Exception('Unknown type');
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}
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$this->_type = $type;
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return $this;
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}
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/**
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* Returns the set locale
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*
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* @return array
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*/
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public function getLocale()
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{
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return $this->_locale;
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}
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/**
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* Set the locales which are accepted
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*
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* @param string|array|Zend_Locale $locale
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* @throws Zend_Filter_Exception
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* @return Zend_Filter_Boolean
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*/
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public function setLocale($locale = null)
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{
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if (is_string($locale)) {
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$locale = array($locale);
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} elseif ($locale instanceof Zend_Locale) {
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$locale = array($locale->toString());
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} elseif (!is_array($locale)) {
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require_once 'Zend/Filter/Exception.php';
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throw new Zend_Filter_Exception('Locale has to be string, array or an instance of Zend_Locale');
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}
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require_once 'Zend/Locale.php';
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foreach ($locale as $single) {
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if (!Zend_Locale::isLocale($single)) {
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require_once 'Zend/Filter/Exception.php';
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throw new Zend_Filter_Exception("Unknown locale '$single'");
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}
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}
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$this->_locale = $locale;
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return $this;
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}
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/**
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* Returns the casting option
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*
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* @return boolean
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*/
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public function getCasting()
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{
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return $this->_casting;
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}
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/**
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* Set the working mode
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*
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* @param boolean $locale When true this filter works like cast
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* When false it recognises only true and false
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* and all other values are returned as is
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* @throws Zend_Filter_Exception
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* @return Zend_Filter_Boolean
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*/
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public function setCasting($casting = true)
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{
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$this->_casting = (boolean) $casting;
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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 a boolean representation of $value
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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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$type = $this->getType();
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$casting = $this->getCasting();
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// STRING YES (Localized)
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if ($type >= self::YES) {
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$type -= self::YES;
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if (is_string($value)) {
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require_once 'Zend/Locale.php';
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$locales = $this->getLocale();
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foreach ($locales as $locale) {
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if ($this->_getLocalizedQuestion($value, false, $locale) === false) {
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return false;
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}
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if (!$casting && ($this->_getLocalizedQuestion($value, true, $locale) === true)) {
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return true;
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}
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}
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}
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}
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// STRING FALSE ('false')
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if ($type >= self::FALSE_STRING) {
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$type -= self::FALSE_STRING;
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if (is_string($value) && (strtolower($value) == 'false')) {
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return false;
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}
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if ((!$casting) && is_string($value) && (strtolower($value) == 'true')) {
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return true;
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}
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}
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// NULL (null)
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if ($type >= self::NULL) {
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$type -= self::NULL;
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if ($value === null) {
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return false;
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}
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}
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// EMPTY_ARRAY (array())
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if ($type >= self::EMPTY_ARRAY) {
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$type -= self::EMPTY_ARRAY;
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if (is_array($value) && ($value == array())) {
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return false;
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}
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}
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// ZERO ('0')
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if ($type >= self::ZERO) {
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$type -= self::ZERO;
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if (is_string($value) && ($value == '0')) {
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return false;
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}
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if ((!$casting) && (is_string($value)) && ($value == '1')) {
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return true;
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}
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}
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// STRING ('')
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if ($type >= self::STRING) {
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$type -= self::STRING;
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if (is_string($value) && ($value == '')) {
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return false;
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}
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}
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// FLOAT (0.0)
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if ($type >= self::FLOAT) {
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$type -= self::FLOAT;
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if (is_float($value) && ($value == 0.0)) {
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return false;
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}
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if ((!$casting) && is_float($value) && ($value == 1.0)) {
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return true;
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}
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}
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// INTEGER (0)
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if ($type >= self::INTEGER) {
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$type -= self::INTEGER;
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if (is_int($value) && ($value == 0)) {
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return false;
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}
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if ((!$casting) && is_int($value) && ($value == 1)) {
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return true;
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}
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}
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// BOOLEAN (false)
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if ($type >= self::BOOLEAN) {
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$type -= self::BOOLEAN;
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if (is_bool($value)) {
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return $value;
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}
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}
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if ($casting) {
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return true;
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}
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return $value;
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}
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/**
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* Determine the value of a localized string, and compare it to a given value
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*
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* @param string $value
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* @param boolean $yes
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* @param array $locale
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* @return boolean
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*/
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protected function _getLocalizedQuestion($value, $yes, $locale)
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{
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if ($yes == true) {
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$question = 'yes';
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$return = true;
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} else {
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$question = 'no';
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$return = false;
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}
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$str = Zend_Locale::getTranslation($question, 'question', $locale);
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$str = explode(':', $str);
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if (!empty($str)) {
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foreach($str as $no) {
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if (($no == $value) || (strtolower($no) == strtolower($value))) {
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return $return;
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}
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}
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}
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}
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}
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