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 <?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_Validate
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 /**
  * @see Zend_Validate_Abstract
  */
 // require_once 'Zend/Validate/Abstract.php';
 
 /**
  * @see Zend_Locale_Format
  */
 // require_once 'Zend/Locale/Format.php';
 
 /**
  * @category   Zend
  * @package    Zend_Validate
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Validate_Float extends Zend_Validate_Abstract
 {
     const INVALID   = 'floatInvalid';
     const NOT_FLOAT = 'notFloat';
 
     /**
      * @var array
      */
     protected $_messageTemplates = array(
         self::INVALID   => "Invalid type given. String, integer or float expected",
         self::NOT_FLOAT => "'%value%' does not appear to be a float",
     );
 
     protected $_locale;
 
     /**
      * Constructor for the float validator
      *
      * @param string|Zend_Config|Zend_Locale $locale
      */
     public function __construct($locale = null)
     {
         if ($locale instanceof Zend_Config) {
             $locale = $locale->toArray();
         }
 
         if (is_array($locale)) {
             if (array_key_exists('locale', $locale)) {
                 $locale = $locale['locale'];
             } else {
                 $locale = null;
             }
         }
 
         if (empty($locale)) {
             // require_once 'Zend/Registry.php';
             if (Zend_Registry::isRegistered('Zend_Locale')) {
                 $locale = Zend_Registry::get('Zend_Locale');
             }
         }
 
         $this->setLocale($locale);
     }
 
     /**
      * Returns the set locale
      */
     public function getLocale()
     {
         return $this->_locale;
     }
 
     /**
      * Sets the locale to use
      *
      * @param string|Zend_Locale $locale
      * @return $this
      */
     public function setLocale($locale = null)
     {
         // require_once 'Zend/Locale.php';
         $this->_locale = Zend_Locale::findLocale($locale);
         return $this;
     }
 
     /**
      * Defined by Zend_Validate_Interface
      *
      * Returns true if and only if $value is a floating-point value
      *
      * @param  string $value
      * @return boolean
      */
     public function isValid($value)
     {
         if (!is_string($value) && !is_int($value) && !is_float($value)) {
             $this->_error(self::INVALID);
             return false;
         }
 
         if (is_float($value)) {
             return true;
         }
 
         $this->_setValue($value);
         try {
             if (!Zend_Locale_Format::isFloat($value, array('locale' => $this->_locale))) {
                 $this->_error(self::NOT_FLOAT);
                 return false;
             }
         } catch (Zend_Locale_Exception $e) {
             $this->_error(self::NOT_FLOAT);
             return false;
         }
 
         return true;
     }
 }