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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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