<?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 { // p stands for prototype /** * @type HTMLPurifier_Token_Start */ private $p_start; /** * @type HTMLPurifier_Token_End */ private $p_end; /** * @type HTMLPurifier_Token_Empty */ private $p_empty; /** * @type HTMLPurifier_Token_Text */ private $p_text; /** * @type HTMLPurifier_Token_Comment */ private $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 string $name Tag name * @param array $attr Associative array of attributes * @return HTMLPurifier_Token_Start Generated HTMLPurifier_Token_Start */ public function createStart($name, $attr = array()) { $p = clone $this->p_start; $p->__construct($name, $attr); return $p; } /** * Creates a HTMLPurifier_Token_End. * @param string $name Tag name * @return HTMLPurifier_Token_End Generated HTMLPurifier_Token_End */ public function createEnd($name) { $p = clone $this->p_end; $p->__construct($name); return $p; } /** * Creates a HTMLPurifier_Token_Empty. * @param string $name Tag name * @param array $attr Associative array of attributes * @return HTMLPurifier_Token_Empty Generated HTMLPurifier_Token_Empty */ public function createEmpty($name, $attr = array()) { $p = clone $this->p_empty; $p->__construct($name, $attr); return $p; } /** * Creates a HTMLPurifier_Token_Text. * @param string $data Data of text token * @return HTMLPurifier_Token_Text Generated HTMLPurifier_Token_Text */ public function createText($data) { $p = clone $this->p_text; $p->__construct($data); return $p; } /** * Creates a HTMLPurifier_Token_Comment. * @param string $data Data of comment token * @return HTMLPurifier_Token_Comment Generated HTMLPurifier_Token_Comment */ public function createComment($data) { $p = clone $this->p_comment; $p->__construct($data); return $p; } } // vim: et sw=4 sts=4