WP_HTML_Active_Formatting_Elements::push( WP_HTML_Token $token )

Source

public function push( WP_HTML_Token $token ) {
	/*
	 * > If there are already three elements in the list of active formatting elements after the last marker,
	 * > if any, or anywhere in the list if there are no markers, that have the same tag name, namespace, and
	 * > attributes as element, then remove the earliest such element from the list of active formatting
	 * > elements. For these purposes, the attributes must be compared as they were when the elements were
	 * > created by the parser; two elements have the same attributes if all their parsed attributes can be
	 * > paired such that the two attributes in each pair have identical names, namespaces, and values
	 * > (the order of the attributes does not matter).
	 *
	 * @todo Implement the "Noah's Ark clause" to only add up to three of any given kind of formatting elements to the stack.
	 */
	// > Add element to the list of active formatting elements.
	$this->stack[] = $token;
}

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