/plugins/vjCommentPlugin/lib/tools/htmlpurifier/library/HTMLPurifier/ChildDef/Optional.php
PHP | 26 lines | 15 code | 2 blank | 9 comment | 3 complexity | 6b324d68260f872dc1a9312608af70bf MD5 | raw file
Possible License(s): LGPL-2.1
- <?php
- /**
- * Definition that allows a set of elements, and allows no children.
- * @note This is a hack to reuse code from HTMLPurifier_ChildDef_Required,
- * really, one shouldn't inherit from the other. Only altered behavior
- * is to overload a returned false with an array. Thus, it will never
- * return false.
- */
- class HTMLPurifier_ChildDef_Optional extends HTMLPurifier_ChildDef_Required
- {
- public $allow_empty = true;
- public $type = 'optional';
- public function validateChildren($tokens_of_children, $config, $context) {
- $result = parent::validateChildren($tokens_of_children, $config, $context);
- // we assume that $tokens_of_children is not modified
- if ($result === false) {
- if (empty($tokens_of_children)) return true;
- elseif ($this->whitespace) return $tokens_of_children;
- else return array();
- }
- return $result;
- }
- }
- // vim: et sw=4 sts=4