| 1: | <?php |
| 2: | |
| 3: | /** |
| 4: | * Abstract base node class that all others inherit from. |
| 5: | * |
| 6: | * Why do we not use the DOM extension? (1) It is not always available, |
| 7: | * (2) it has funny constraints on the data it can represent, |
| 8: | * whereas we want a maximally flexible representation, and (3) its |
| 9: | * interface is a bit cumbersome. |
| 10: | */ |
| 11: | abstract class HTMLPurifier_Node |
| 12: | { |
| 13: | /** |
| 14: | * Line number of the start token in the source document |
| 15: | * @type int |
| 16: | */ |
| 17: | public $line; |
| 18: | |
| 19: | /** |
| 20: | * Column number of the start token in the source document. Null if unknown. |
| 21: | * @type int |
| 22: | */ |
| 23: | public $col; |
| 24: | |
| 25: | /** |
| 26: | * Lookup array of processing that this token is exempt from. |
| 27: | * Currently, valid values are "ValidateAttributes". |
| 28: | * @type array |
| 29: | */ |
| 30: | public $armor = array(); |
| 31: | |
| 32: | /** |
| 33: | * When true, this node should be ignored as non-existent. |
| 34: | * |
| 35: | * Who is responsible for ignoring dead nodes? FixNesting is |
| 36: | * responsible for removing them before passing on to child |
| 37: | * validators. |
| 38: | */ |
| 39: | public $dead = false; |
| 40: | |
| 41: | /** |
| 42: | * Returns a pair of start and end tokens, where the end token |
| 43: | * is null if it is not necessary. Does not include children. |
| 44: | * @type array |
| 45: | */ |
| 46: | abstract public function toTokenPair(); |
| 47: | } |
| 48: | |
| 49: | // vim: et sw=4 sts=4 |
| 50: |