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<?php
/**
* HTML API: WP_HTML_Token class
*
* @package WordPress
* @subpackage HTML-API
* @since 6.4.0
*/
/**
* Core class used by the HTML processor during HTML parsing
* for referring to tokens in the input HTML string.
*
* This class is designed for internal use by the HTML processor.
*
* @since 6.4.0
*
* @access private
*
* @see WP_HTML_Processor
*/
class WP_HTML_Token {
/**
* Name of bookmark corresponding to source of token in input HTML string.
*
* Having a bookmark name does not imply that the token still exists. It
* may be that the source token and underlying bookmark was wiped out by
* some modification to the source HTML.
*
* @since 6.4.0
*
* @var string
*/
public $bookmark_name = null;
/**
* Name of node; lowercase names such as "marker" are not HTML elements.
*
* For HTML elements/tags this value should come from WP_HTML_Processor::get_tag().
*
* @since 6.4.0
*
* @see WP_HTML_Processor::get_tag()
*
* @var string
*/
public $node_name = null;
/**
* Whether node contains the self-closing flag.
*
* A node may have a self-closing flag when it shouldn't. This value
* only reports if the flag is present in the original HTML.
*
* @since 6.4.0
*
* @see https://html.spec.whatwg.org/#self-closing-flag
*
* @var bool
*/
public $has_self_closing_flag = false;
/**
* Called when token is garbage-collected or otherwise destroyed.
*
* @var callable|null
*/
public $on_destroy = null;
/**
* Constructor - creates a reference to a token in some external HTML string.
*
* @since 6.4.0
*
* @param string $bookmark_name Name of bookmark corresponding to location in HTML where token is found.
* @param string $node_name Name of node token represents; if uppercase, an HTML element; if lowercase, a special value like "marker".
* @param bool $has_self_closing_flag Whether the source token contains the self-closing flag, regardless of whether it's valid.
* @param callable $on_destroy Function to call when destroying token, useful for releasing the bookmark.
*/
public function __construct( $bookmark_name, $node_name, $has_self_closing_flag, $on_destroy = null ) {
$this->bookmark_name = $bookmark_name;
$this->node_name = $node_name;
$this->has_self_closing_flag = $has_self_closing_flag;
$this->on_destroy = $on_destroy;
}
/**
* Destructor.
*
* @since 6.4.0
*/
public function __destruct() {
if ( is_callable( $this->on_destroy ) ) {
call_user_func( $this->on_destroy, $this->bookmark_name );
}
}
/**
* Wakeup magic method.
*
* @since 6.4.2
*/
public function __wakeup() {
throw new \LogicException( __CLASS__ . ' should never be unserialized' );
}
}
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