<?php /** * Abstract base node class that all others inherit from. * * Why do we not use the DOM extension? (1) It is not always available, * (2) it has funny constraints on the data it can represent, * whereas we want a maximally flexible representation, and (3) its * interface is a bit cumbersome. */ abstract class HTMLPurifier_Node { /** * Line number of the start token in the source document * @type int */ public $line; /** * Column number of the start token in the source document. Null if unknown. * @type int */ public $col; /** * Lookup array of processing that this token is exempt from. * Currently, valid values are "ValidateAttributes". * @type array */ public $armor = array(); /** * When true, this node should be ignored as non-existent. * * Who is responsible for ignoring dead nodes? FixNesting is * responsible for removing them before passing on to child * validators. */ public $dead = false; /** * Returns a pair of start and end tokens, where the end token * is null if it is not necessary. Does not include children. * @type array */ abstract public function toTokenPair(); } // vim: et sw=4 sts=4