← All changes | back/Libraries/Sabberworm/CSS/src/Property/Selector.php +0 -138 10.2.2 → 11.1.1 View file →

		@@ -1,138 +1,0 @@
1		-<?php
2		-
3		-namespace Sabberworm\CSS\Property;
4		-
5		-/**
6		- * Class representing a single CSS selector. Selectors have to be split by the comma prior to being passed into this
7		- * class.
8		- */
9		-class Selector
10		-{
11		- /**
12		- * regexp for specificity calculations
13		- *
14		- * @var string
15		- */
16		- const NON_ID_ATTRIBUTES_AND_PSEUDO_CLASSES_RX = '/
17		- (\.[\w]+) # classes
18		- |
19		- \[(\w+) # attributes
20		- |
21		- (\:( # pseudo classes
22		- link|visited|active
23		- |hover|focus
24		- |lang
25		- |target
26		- |enabled|disabled|checked|indeterminate
27		- |root
28		- |nth-child|nth-last-child|nth-of-type|nth-last-of-type
29		- |first-child|last-child|first-of-type|last-of-type
30		- |only-child|only-of-type
31		- |empty|contains
32		- ))
33		- /ix';
34		-
35		- /**
36		- * regexp for specificity calculations
37		- *
38		- * @var string
39		- */
40		- const ELEMENTS_AND_PSEUDO_ELEMENTS_RX = '/
41		- ((^|[\s\+\>\~]+)[\w]+ # elements
42		- |
43		- \:{1,2}( # pseudo-elements
44		- after|before|first-letter|first-line|selection
45		- ))
46		- /ix';
47		-
48		- /**
49		- * regexp for specificity calculations
50		- *
51		- * @var string
52		- */
53		- const SELECTOR_VALIDATION_RX = '/
54		- ^(
55		- (?:
56		- [a-zA-Z0-9\x{00A0}-\x{FFFF}_^$|*="\'~\[\]()\-\s\.:#+>]* # any sequence of valid unescaped characters
57		- (?:\\\\.)? # a single escaped character
58		- (?:([\'"]).*?(?<!\\\\)\2)? # a quoted text like [id="example"]
59		- )*
60		- )$
61		- /ux';
62		-
63		- /**
64		- * @var string
65		- */
66		- private $sSelector;
67		-
68		- /**
69		- * @var int|null
70		- */
71		- private $iSpecificity;
72		-
73		- /**
74		- * @param string $sSelector
75		- *
76		- * @return bool
77		- */
78		- public static function isValid($sSelector)
79		- {
80		- return preg_match(static::SELECTOR_VALIDATION_RX, $sSelector);
81		- }
82		-
83		- /**
84		- * @param string $sSelector
85		- * @param bool $bCalculateSpecificity
86		- */
87		- public function __construct($sSelector, $bCalculateSpecificity = false)
88		- {
89		- $this->setSelector($sSelector);
90		- if ($bCalculateSpecificity) {
91		- $this->getSpecificity();
92		- }
93		- }
94		-
95		- /**
96		- * @return string
97		- */
98		- public function getSelector()
99		- {
100		- return $this->sSelector;
101		- }
102		-
103		- /**
104		- * @param string $sSelector
105		- *
106		- * @return void
107		- */
108		- public function setSelector($sSelector)
109		- {
110		- $this->sSelector = trim($sSelector);
111		- $this->iSpecificity = null;
112		- }
113		-
114		- /**
115		- * @return string
116		- */
117		- public function __toString()
118		- {
119		- return $this->getSelector();
120		- }
121		-
122		- /**
123		- * @return int
124		- */
125		- public function getSpecificity()
126		- {
127		- if ($this->iSpecificity === null) {
128		- $a = 0;
129		- /// @todo should exclude \# as well as "#"
130		- $aMatches = null;
131		- $b = substr_count($this->sSelector, '#');
132		- $c = preg_match_all(self::NON_ID_ATTRIBUTES_AND_PSEUDO_CLASSES_RX, $this->sSelector, $aMatches);
133		- $d = preg_match_all(self::ELEMENTS_AND_PSEUDO_ELEMENTS_RX, $this->sSelector, $aMatches);
134		- $this->iSpecificity = ($a * 1000) + ($b * 100) + ($c * 10) + $d;
135		- }
136		- return $this->iSpecificity;
137		- }
138		-}