scratch – Blame information for rev 87
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87 | office | 1 | <?php |
2 | |||
3 | /* |
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4 | * This file is part of the Symfony package. |
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5 | * |
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6 | * (c) Fabien Potencier <fabien@symfony.com> |
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7 | * |
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8 | * For the full copyright and license information, please view the LICENSE |
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9 | * file that was distributed with this source code. |
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10 | */ |
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11 | |||
12 | namespace Symfony\Component\CssSelector\Node; |
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13 | |||
14 | /** |
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15 | * Represents a node specificity. |
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16 | * |
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17 | * This component is a port of the Python cssselect library, |
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18 | * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect. |
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19 | * |
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20 | * @see http://www.w3.org/TR/selectors/#specificity |
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21 | * |
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22 | * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com> |
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23 | * |
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24 | * @internal |
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25 | */ |
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26 | class Specificity |
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27 | { |
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28 | const A_FACTOR = 100; |
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29 | const B_FACTOR = 10; |
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30 | const C_FACTOR = 1; |
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31 | |||
32 | /** |
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33 | * @var int |
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34 | */ |
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35 | private $a; |
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36 | |||
37 | /** |
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38 | * @var int |
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39 | */ |
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40 | private $b; |
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41 | |||
42 | /** |
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43 | * @var int |
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44 | */ |
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45 | private $c; |
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46 | |||
47 | /** |
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48 | * Constructor. |
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49 | * |
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50 | * @param int $a |
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51 | * @param int $b |
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52 | * @param int $c |
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53 | */ |
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54 | public function __construct($a, $b, $c) |
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55 | { |
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56 | $this->a = $a; |
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57 | $this->b = $b; |
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58 | $this->c = $c; |
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59 | } |
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60 | |||
61 | /** |
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62 | * @param Specificity $specificity |
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63 | * |
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64 | * @return self |
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65 | */ |
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66 | public function plus(Specificity $specificity) |
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67 | { |
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68 | return new self($this->a + $specificity->a, $this->b + $specificity->b, $this->c + $specificity->c); |
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69 | } |
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70 | |||
71 | /** |
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72 | * Returns global specificity value. |
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73 | * |
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74 | * @return int |
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75 | */ |
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76 | public function getValue() |
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77 | { |
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78 | return $this->a * self::A_FACTOR + $this->b * self::B_FACTOR + $this->c * self::C_FACTOR; |
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79 | } |
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80 | |||
81 | /** |
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82 | * Returns -1 if the object specificity is lower than the argument, |
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83 | * 0 if they are equal, and 1 if the argument is lower. |
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84 | * |
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85 | * @param Specificity $specificity |
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86 | * |
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87 | * @return int |
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88 | */ |
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89 | public function compareTo(Specificity $specificity) |
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90 | { |
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91 | if ($this->a !== $specificity->a) { |
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92 | return $this->a > $specificity->a ? 1 : -1; |
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93 | } |
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94 | |||
95 | if ($this->b !== $specificity->b) { |
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96 | return $this->b > $specificity->b ? 1 : -1; |
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97 | } |
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98 | |||
99 | if ($this->c !== $specificity->c) { |
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100 | return $this->c > $specificity->c ? 1 : -1; |
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101 | } |
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102 | |||
103 | return 0; |
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104 | } |
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105 | } |