1 | <?php |
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10 | class Path |
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11 | { |
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12 | /** |
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13 | * Normalizes the given path. |
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14 | * |
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15 | * @param string $path |
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16 | * |
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17 | * @return string |
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18 | */ |
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19 | public static function normalize($path) |
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20 | { |
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21 | $path = str_replace('\\', '/', $path); |
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22 | $prefix = static::getAbsolutePrefix($path); |
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23 | $path = substr($path, strlen($prefix)); |
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24 | $parts = array_filter(explode('/', $path), 'strlen'); |
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25 | $tokens = array(); |
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26 | |||
27 | foreach ($parts as $part) { |
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28 | switch ($part) { |
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29 | case '.': |
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30 | continue; |
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31 | case '..': |
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32 | if (0 !== count($tokens)) { |
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33 | array_pop($tokens); |
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34 | continue; |
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35 | } elseif (!empty($prefix)) { |
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36 | continue; |
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37 | } |
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38 | default: |
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39 | $tokens[] = $part; |
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40 | } |
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41 | } |
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42 | |||
43 | return $prefix.implode('/', $tokens); |
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44 | } |
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45 | |||
46 | /** |
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47 | * Indicates whether the given path is absolute or not. |
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48 | * |
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49 | * @param string $path A normalized path |
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50 | * |
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51 | * @return bool |
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52 | */ |
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53 | public static function isAbsolute($path) |
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54 | { |
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55 | return '' !== static::getAbsolutePrefix($path); |
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56 | } |
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57 | |||
58 | /** |
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59 | * Returns the absolute prefix of the given path. |
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60 | * |
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61 | * @param string $path A normalized path |
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62 | * |
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63 | * @return string |
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64 | */ |
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65 | public static function getAbsolutePrefix($path) |
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66 | { |
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67 | preg_match('|^(?P<prefix>([a-zA-Z]+:)?//?)|', $path, $matches); |
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68 | |||
69 | if (empty($matches['prefix'])) { |
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70 | return ''; |
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71 | } |
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72 | |||
73 | return strtolower($matches['prefix']); |
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74 | } |
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75 | |||
76 | /** |
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77 | * Wrap native dirname function in order to handle only UNIX-style paths |
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78 | * |
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79 | * @param string $path |
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80 | * |
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81 | * @return string |
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82 | * |
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83 | * @see http://php.net/manual/en/function.dirname.php |
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84 | */ |
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85 | public static function dirname($path) |
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89 | |||
90 | /** |
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91 | * UTF-8 aware parse_url() replacement. |
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92 | * |
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93 | * @param string $url to parse |
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94 | * |
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95 | * @return bool|array |
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96 | * |
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97 | * @see https://secure.php.net/manual/fr/function.parse-url.php#114817 |
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98 | */ |
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99 | public static function parseUrl($url) |
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124 | } |
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125 |