1. sfValidatorRegex.class.php
  2. /**
 * sfValidatorRegex validates a value with a regular expression.
 *
 * @package    symfony
 * @subpackage validator
 * @author     Fabien Potencier 
 * @version    SVN: $Id: sfValidatorRegex.class.php 22149 2009-09-18 14:09:53Z Kris.Wallsmith $
 */
  3. class sfValidatorRegex extends sfValidatorString
  4. {
  5.   /**
  6.    * Configures the current validator.
  7.    *
  8.    * Available options:
  9.    *
  10.    *  * pattern:    A regex pattern compatible with PCRE or {@link sfCallable} that returns one (required)
  11.    *  * must_match: Whether the regex must match or not (true by default)
  12.    *
  13.    * @param array $options   An array of options
  14.    * @param array $messages  An array of error messages
  15.    *
  16.    * @see sfValidatorString
  17.    */
  18.   protected function configure($options = array(), $messages = array())
  19.   {
  20.     parent::configure($options, $messages);
  22.     $this->addRequiredOption('pattern');
  23.     $this->addOption('must_match', true);
  24.   }
  26.   /**
  27.    * @see sfValidatorString
  28.    */
  29.   protected function doClean($value)
  30.   {
  31.     $clean = parent::doClean($value);
  33.     $pattern = $this->getPattern();
  35.     if (
  36.       ($this->getOption('must_match') && !preg_match($pattern, $clean))
  37.       ||
  38.       (!$this->getOption('must_match') && preg_match($pattern, $clean))
  39.     )
  40.     {
  41.       throw new sfValidatorError($this, 'invalid', array('value' => $value));
  42.     }
  44.     return $clean;
  45.   }
  47.   /**
  48.    * Returns the current validator's regular expression.
  49.    *
  50.    * @return string
  51.    */
  52.   public function getPattern()
  53.   {
  54.     $pattern = $this->getOption('pattern');
  56.     return $pattern instanceof sfCallable ? $pattern->call() : $pattern;
  57.   }
  58. }
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