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<?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
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