| 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: | /** |
| 13: | * @type bool |
| 14: | */ |
| 15: | public $allow_empty = true; |
| 16: | |
| 17: | /** |
| 18: | * @type string |
| 19: | */ |
| 20: | public $type = 'optional'; |
| 21: | |
| 22: | /** |
| 23: | * @param array $children |
| 24: | * @param HTMLPurifier_Config $config |
| 25: | * @param HTMLPurifier_Context $context |
| 26: | * @return array |
| 27: | */ |
| 28: | public function validateChildren($children, $config, $context) |
| 29: | { |
| 30: | $result = parent::validateChildren($children, $config, $context); |
| 31: | // we assume that $children is not modified |
| 32: | if ($result === false) { |
| 33: | if (empty($children)) { |
| 34: | return true; |
| 35: | } elseif ($this->whitespace) { |
| 36: | return $children; |
| 37: | } else { |
| 38: | return array(); |
| 39: | } |
| 40: | } |
| 41: | return $result; |
| 42: | } |
| 43: | } |
| 44: | |
| 45: | // vim: et sw=4 sts=4 |
| 46: |