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