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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';
 
 /**
  * @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_Regex extends Zend_Validate_Abstract
 {
     const INVALID   = 'regexInvalid';
     const NOT_MATCH = 'regexNotMatch';
     const ERROROUS  = 'regexErrorous';
 
     /**
      * @var array
      */
     protected $_messageTemplates = array(
         self::INVALID   => "Invalid type given. String, integer or float expected",
         self::NOT_MATCH => "'%value%' does not match against pattern '%pattern%'",
         self::ERROROUS  => "There was an internal error while using the pattern '%pattern%'",
     );
 
     /**
      * @var array
      */
     protected $_messageVariables = array(
         'pattern' => '_pattern'
     );
 
     /**
      * Regular expression pattern
      *
      * @var string
      */
     protected $_pattern;
 
     /**
      * Sets validator options
      *
      * @param  string|Zend_Config $pattern
      * @throws Zend_Validate_Exception On missing 'pattern' parameter
      */
     public function __construct($pattern)
     {
         if ($pattern instanceof Zend_Config) {
             $pattern = $pattern->toArray();
         }
 
         if (is_array($pattern)) {
             if (array_key_exists('pattern', $pattern)) {
                 $pattern = $pattern['pattern'];
             } else {
                 // require_once 'Zend/Validate/Exception.php';
                 throw new Zend_Validate_Exception("Missing option 'pattern'");
             }
         }
 
         $this->setPattern($pattern);
     }
 
     /**
      * Returns the pattern option
      *
      * @return string
      */
     public function getPattern()
     {
         return $this->_pattern;
     }
 
     /**
      * Sets the pattern option
      *
      * @param  string $pattern
      * @throws Zend_Validate_Exception if there is a fatal error in pattern matching
      * @return Zend_Validate_Regex Provides a fluent interface
      */
     public function setPattern($pattern)
     {
         $this->_pattern = (string) $pattern;
         $status         = @preg_match($this->_pattern, "Test");
 
         if (false === $status) {
             // require_once 'Zend/Validate/Exception.php';
             throw new Zend_Validate_Exception("Internal error while using the pattern '$this->_pattern'");
         }
 
         return $this;
     }
 
     /**
      * Defined by Zend_Validate_Interface
      *
      * Returns true if and only if $value matches against the pattern option
      *
      * @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;
         }
 
         $this->_setValue($value);
 
         $status = @preg_match($this->_pattern, $value);
         if (false === $status) {
             $this->_error(self::ERROROUS);
             return false;
         }
 
         if (!$status) {
             $this->_error(self::NOT_MATCH);
             return false;
         }
 
         return true;
     }
 }