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010efc9b AD |
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 | ||
17 | /** | |
18 | * Prototypes that will be cloned. | |
19 | * @private | |
20 | */ | |
21 | // p stands for prototype | |
22 | private $p_start, $p_end, $p_empty, $p_text, $p_comment; | |
23 | ||
24 | /** | |
25 | * Generates blank prototypes for cloning. | |
26 | */ | |
27 | public function __construct() { | |
28 | $this->p_start = new HTMLPurifier_Token_Start('', array()); | |
29 | $this->p_end = new HTMLPurifier_Token_End(''); | |
30 | $this->p_empty = new HTMLPurifier_Token_Empty('', array()); | |
31 | $this->p_text = new HTMLPurifier_Token_Text(''); | |
32 | $this->p_comment= new HTMLPurifier_Token_Comment(''); | |
33 | } | |
34 | ||
35 | /** | |
36 | * Creates a HTMLPurifier_Token_Start. | |
37 | * @param $name Tag name | |
38 | * @param $attr Associative array of attributes | |
39 | * @return Generated HTMLPurifier_Token_Start | |
40 | */ | |
41 | public function createStart($name, $attr = array()) { | |
42 | $p = clone $this->p_start; | |
43 | $p->__construct($name, $attr); | |
44 | return $p; | |
45 | } | |
46 | ||
47 | /** | |
48 | * Creates a HTMLPurifier_Token_End. | |
49 | * @param $name Tag name | |
50 | * @return Generated HTMLPurifier_Token_End | |
51 | */ | |
52 | public function createEnd($name) { | |
53 | $p = clone $this->p_end; | |
54 | $p->__construct($name); | |
55 | return $p; | |
56 | } | |
57 | ||
58 | /** | |
59 | * Creates a HTMLPurifier_Token_Empty. | |
60 | * @param $name Tag name | |
61 | * @param $attr Associative array of attributes | |
62 | * @return Generated HTMLPurifier_Token_Empty | |
63 | */ | |
64 | public function createEmpty($name, $attr = array()) { | |
65 | $p = clone $this->p_empty; | |
66 | $p->__construct($name, $attr); | |
67 | return $p; | |
68 | } | |
69 | ||
70 | /** | |
71 | * Creates a HTMLPurifier_Token_Text. | |
72 | * @param $data Data of text token | |
73 | * @return Generated HTMLPurifier_Token_Text | |
74 | */ | |
75 | public function createText($data) { | |
76 | $p = clone $this->p_text; | |
77 | $p->__construct($data); | |
78 | return $p; | |
79 | } | |
80 | ||
81 | /** | |
82 | * Creates a HTMLPurifier_Token_Comment. | |
83 | * @param $data Data of comment token | |
84 | * @return Generated HTMLPurifier_Token_Comment | |
85 | */ | |
86 | public function createComment($data) { | |
87 | $p = clone $this->p_comment; | |
88 | $p->__construct($data); | |
89 | return $p; | |
90 | } | |
91 | ||
92 | } | |
93 | ||
94 | // vim: et sw=4 sts=4 |