| 1: | <?php |
| 2: | |
| 3: | /** |
| 4: | * Factory for token generation. |
| 5: | * |
| 6: | * @note Doing some benchmarking indicates that the new operator is much |
| 7: | * slower than the clone operator (even discounting the cost of the |
| 8: | * constructor). This class is for that optimization. |
| 9: | * Other then that, there's not much point as we don't |
| 10: | * maintain parallel HTMLPurifier_Token hierarchies (the main reason why |
| 11: | * you'd want to use an abstract factory). |
| 12: | * @todo Port DirectLex to use this |
| 13: | */ |
| 14: | class HTMLPurifier_TokenFactory |
| 15: | { |
| 16: | // p stands for prototype |
| 17: | |
| 18: | /** |
| 19: | * @type HTMLPurifier_Token_Start |
| 20: | */ |
| 21: | private $p_start; |
| 22: | |
| 23: | /** |
| 24: | * @type HTMLPurifier_Token_End |
| 25: | */ |
| 26: | private $p_end; |
| 27: | |
| 28: | /** |
| 29: | * @type HTMLPurifier_Token_Empty |
| 30: | */ |
| 31: | private $p_empty; |
| 32: | |
| 33: | /** |
| 34: | * @type HTMLPurifier_Token_Text |
| 35: | */ |
| 36: | private $p_text; |
| 37: | |
| 38: | /** |
| 39: | * @type HTMLPurifier_Token_Comment |
| 40: | */ |
| 41: | private $p_comment; |
| 42: | |
| 43: | /** |
| 44: | * Generates blank prototypes for cloning. |
| 45: | */ |
| 46: | public function __construct() |
| 47: | { |
| 48: | $this->p_start = new HTMLPurifier_Token_Start('', array()); |
| 49: | $this->p_end = new HTMLPurifier_Token_End(''); |
| 50: | $this->p_empty = new HTMLPurifier_Token_Empty('', array()); |
| 51: | $this->p_text = new HTMLPurifier_Token_Text(''); |
| 52: | $this->p_comment = new HTMLPurifier_Token_Comment(''); |
| 53: | } |
| 54: | |
| 55: | /** |
| 56: | * Creates a HTMLPurifier_Token_Start. |
| 57: | * @param string $name Tag name |
| 58: | * @param array $attr Associative array of attributes |
| 59: | * @return HTMLPurifier_Token_Start Generated HTMLPurifier_Token_Start |
| 60: | */ |
| 61: | public function createStart($name, $attr = array()) |
| 62: | { |
| 63: | $p = clone $this->p_start; |
| 64: | $p->__construct($name, $attr); |
| 65: | return $p; |
| 66: | } |
| 67: | |
| 68: | /** |
| 69: | * Creates a HTMLPurifier_Token_End. |
| 70: | * @param string $name Tag name |
| 71: | * @return HTMLPurifier_Token_End Generated HTMLPurifier_Token_End |
| 72: | */ |
| 73: | public function createEnd($name) |
| 74: | { |
| 75: | $p = clone $this->p_end; |
| 76: | $p->__construct($name); |
| 77: | return $p; |
| 78: | } |
| 79: | |
| 80: | /** |
| 81: | * Creates a HTMLPurifier_Token_Empty. |
| 82: | * @param string $name Tag name |
| 83: | * @param array $attr Associative array of attributes |
| 84: | * @return HTMLPurifier_Token_Empty Generated HTMLPurifier_Token_Empty |
| 85: | */ |
| 86: | public function createEmpty($name, $attr = array()) |
| 87: | { |
| 88: | $p = clone $this->p_empty; |
| 89: | $p->__construct($name, $attr); |
| 90: | return $p; |
| 91: | } |
| 92: | |
| 93: | /** |
| 94: | * Creates a HTMLPurifier_Token_Text. |
| 95: | * @param string $data Data of text token |
| 96: | * @return HTMLPurifier_Token_Text Generated HTMLPurifier_Token_Text |
| 97: | */ |
| 98: | public function createText($data) |
| 99: | { |
| 100: | $p = clone $this->p_text; |
| 101: | $p->__construct($data); |
| 102: | return $p; |
| 103: | } |
| 104: | |
| 105: | /** |
| 106: | * Creates a HTMLPurifier_Token_Comment. |
| 107: | * @param string $data Data of comment token |
| 108: | * @return HTMLPurifier_Token_Comment Generated HTMLPurifier_Token_Comment |
| 109: | */ |
| 110: | public function createComment($data) |
| 111: | { |
| 112: | $p = clone $this->p_comment; |
| 113: | $p->__construct($data); |
| 114: | return $p; |
| 115: | } |
| 116: | } |
| 117: | |
| 118: | // vim: et sw=4 sts=4 |
| 119: |