<?php /** * Factory for token generation. * * @note Doing some benchmarking indicates that the new operator is much * slower than the clone operator (even discounting the cost of the * constructor). This class is for that optimization. * Other then that, there's not much point as we don't * maintain parallel HTMLPurifier_Token hierarchies (the main reason why * you'd want to use an abstract factory). * @todo Port DirectLex to use this */ class HTMLPurifier_TokenFactory { /** * Prototypes that will be cloned. * @private */ // p stands for prototype private $p_start, $p_end, $p_empty, $p_text, $p_comment; /** * Generates blank prototypes for cloning. */ public function __construct() { $this->p_start = new HTMLPurifier_Token_Start('', array()); $this->p_end = new HTMLPurifier_Token_End(''); $this->p_empty = new HTMLPurifier_Token_Empty('', array()); $this->p_text = new HTMLPurifier_Token_Text(''); $this->p_comment= new HTMLPurifier_Token_Comment(''); } /** * Creates a HTMLPurifier_Token_Start. * @param $name Tag name * @param $attr Associative array of attributes * @return Generated HTMLPurifier_Token_Start */ public function createStart($name, $attr = array()) { $p = clone $this->p_start; $p->__construct($name, $attr); return $p; } /** * Creates a HTMLPurifier_Token_End. * @param $name Tag name * @return Generated HTMLPurifier_Token_End */ public function createEnd($name) { $p = clone $this->p_end; $p->__construct($name); return $p; } /** * Creates a HTMLPurifier_Token_Empty. * @param $name Tag name * @param $attr Associative array of attributes * @return Generated HTMLPurifier_Token_Empty */ public function createEmpty($name, $attr = array()) { $p = clone $this->p_empty; $p->__construct($name, $attr); return $p; } /** * Creates a HTMLPurifier_Token_Text. * @param $data Data of text token * @return Generated HTMLPurifier_Token_Text */ public function createText($data) { $p = clone $this->p_text; $p->__construct($data); return $p; } /** * Creates a HTMLPurifier_Token_Comment. * @param $data Data of comment token * @return Generated HTMLPurifier_Token_Comment */ public function createComment($data) { $p = clone $this->p_comment; $p->__construct($data); return $p; } } // vim: et sw=4 sts=4