lib/htmlpurifier/HTMLPurifier/ChildDef/Optional.php

   1 <?php
   2
   3 require_once 'HTMLPurifier/ChildDef/Required.php';
   4
   5 /**
   6  * Definition that allows a set of elements, and allows no children.
   7  * @note This is a hack to reuse code from HTMLPurifier_ChildDef_Required,
   8  *       really, one shouldn't inherit from the other.  Only altered behavior
   9  *       is to overload a returned false with an array.  Thus, it will never
  10  *       return false.
  11  */
  12 class HTMLPurifier_ChildDef_Optional extends HTMLPurifier_ChildDef_Required
  13 {
  14     var $allow_empty = true;
  15     var $type = 'optional';
  16     function validateChildren($tokens_of_children, $config, &$context) {
  17         $result = parent::validateChildren($tokens_of_children, $config, $context);
  18         if ($result === false) return array();
  19         return $result;
  20     }
  21 }
  22
  23 ?>