Source for file Optional.php

Documentation is available at Optional.php

  1. <?php
  2.  
  3. /**
  4.  * Definition that allows a set of elements, and allows no children.
  5.  * @note This is a hack to reuse code from HTMLPurifier_ChildDef_Required,
  6.  *        really, one shouldn't inherit from the other.  Only altered behavior
  7.  *        is to overload a returned false with an array.  Thus, it will never
  8.  *        return false.
  9.  */
  10. class HTMLPurifier_ChildDef_Optional extends HTMLPurifier_ChildDef_Required
  11. {
  12.     public $allow_empty = true;
  13.     public $type = 'optional';
  14.     public function validateChildren($tokens_of_children, $config, $context) {
  15.         $result = parent::validateChildren($tokens_of_children, $config, $context);
  16.         if ($result === false) {
  17.             if (empty($tokens_of_children)) return true;
  18.             else return array();
  19.         }
  20.         return $result;
  21.     }
  22. }

Documentation generated on Thu, 19 Jun 2008 18:49:51 -0400 by phpDocumentor 1.4.2