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<?php |
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namespace CultuurNet\UDB3; |
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/** |
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* Class CulturefeedSlugger |
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* |
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* Taken from the culturefeed Drupal module. |
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*/ |
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class CulturefeedSlugger implements SluggerInterface |
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{ |
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/** |
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* The maximum length the slug can have. |
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* |
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* @var int |
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*/ |
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protected $length; |
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/** |
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* The separator that will be used instead of whitespaces. |
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* |
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* @var string |
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*/ |
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protected $separator; |
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/** |
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* @param int $length |
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* The maximum length the slug can have. |
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* @param string $separator |
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* The separator that will be used instead of whitespaces. |
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*/ |
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public function __construct($length = 50, $separator = '-') |
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{ |
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$this->length = $length; |
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$this->separator = $separator; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function slug($string) |
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{ |
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// transliterate |
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$string = $this->transliterate($string); |
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// lowercase |
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$string = strtolower($string); |
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// replace non alphanumeric and non underscore characters by separator |
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$string = preg_replace('/[^a-z0-9]/i', $this->separator, $string); |
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// replace multiple occurrences of separator by one instance |
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$string = preg_replace( |
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'/' . preg_quote($this->separator) . '[' . preg_quote($this->separator) . ']*/', |
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$this->separator, |
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$string |
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); |
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// cut off to maximum length |
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if ($this->length > -1 && strlen($string) > $this->length) { |
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$string = substr($string, 0, $this->length); |
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} |
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// remove separator from start and end of string |
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$string = preg_replace( |
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'/' . preg_quote($this->separator) . '$/', |
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'', |
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$string |
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); |
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$string = preg_replace( |
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'/^' . preg_quote($this->separator) . '/', |
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'', |
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$string |
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); |
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return $string; |
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} |
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private function transliterate(string $string): string |
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{ |
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static $charMap; |
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if (!$charMap) { |
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$charMap = array( |
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// Decompositions for Latin-1 Supplement |
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chr(195) . chr(128) => 'A', |
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chr(195) . chr(129) => 'A', |
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chr(195) . chr(130) => 'A', |
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chr(195) . chr(131) => 'A', |
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chr(195) . chr(132) => 'A', |
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chr(195) . chr(133) => 'A', |
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chr(195) . chr(135) => 'C', |
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chr(195) . chr(136) => 'E', |
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chr(195) . chr(137) => 'E', |
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chr(195) . chr(138) => 'E', |
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chr(195) . chr(139) => 'E', |
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chr(195) . chr(140) => 'I', |
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chr(195) . chr(141) => 'I', |
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chr(195) . chr(142) => 'I', |
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chr(195) . chr(143) => 'I', |
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chr(195) . chr(145) => 'N', |
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chr(195) . chr(146) => 'O', |
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chr(195) . chr(147) => 'O', |
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chr(195) . chr(148) => 'O', |
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chr(195) . chr(149) => 'O', |
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chr(195) . chr(150) => 'O', |
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chr(195) . chr(153) => 'U', |
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chr(195) . chr(154) => 'U', |
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chr(195) . chr(155) => 'U', |
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chr(195) . chr(156) => 'U', |
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chr(195) . chr(157) => 'Y', |
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chr(195) . chr(159) => 's', |
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chr(195) . chr(160) => 'a', |
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chr(195) . chr(161) => 'a', |
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chr(195) . chr(162) => 'a', |
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chr(195) . chr(163) => 'a', |
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chr(195) . chr(164) => 'a', |
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chr(195) . chr(165) => 'a', |
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chr(195) . chr(167) => 'c', |
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chr(195) . chr(168) => 'e', |
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chr(195) . chr(169) => 'e', |
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chr(195) . chr(170) => 'e', |
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chr(195) . chr(171) => 'e', |
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chr(195) . chr(172) => 'i', |
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chr(195) . chr(173) => 'i', |
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chr(195) . chr(174) => 'i', |
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chr(195) . chr(175) => 'i', |
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chr(195) . chr(177) => 'n', |
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chr(195) . chr(178) => 'o', |
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chr(195) . chr(179) => 'o', |
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chr(195) . chr(180) => 'o', |
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chr(195) . chr(181) => 'o', |
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chr(195) . chr(182) => 'o', |
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chr(195) . chr(182) => 'o', |
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chr(195) . chr(185) => 'u', |
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chr(195) . chr(186) => 'u', |
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chr(195) . chr(187) => 'u', |
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chr(195) . chr(188) => 'u', |
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chr(195) . chr(189) => 'y', |
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chr(195) . chr(191) => 'y', |
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// Decompositions for Latin Extended-A |
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chr(196) . chr(128) => 'A', |
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chr(196) . chr(129) => 'a', |
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chr(196) . chr(130) => 'A', |
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chr(196) . chr(131) => 'a', |
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chr(196) . chr(132) => 'A', |
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chr(196) . chr(133) => 'a', |
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chr(196) . chr(134) => 'C', |
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chr(196) . chr(135) => 'c', |
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chr(196) . chr(136) => 'C', |
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chr(196) . chr(137) => 'c', |
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chr(196) . chr(138) => 'C', |
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chr(196) . chr(139) => 'c', |
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chr(196) . chr(140) => 'C', |
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chr(196) . chr(141) => 'c', |
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chr(196) . chr(142) => 'D', |
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chr(196) . chr(143) => 'd', |
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chr(196) . chr(144) => 'D', |
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chr(196) . chr(145) => 'd', |
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chr(196) . chr(146) => 'E', |
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chr(196) . chr(147) => 'e', |
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chr(196) . chr(148) => 'E', |
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chr(196) . chr(149) => 'e', |
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chr(196) . chr(150) => 'E', |
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chr(196) . chr(151) => 'e', |
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chr(196) . chr(152) => 'E', |
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chr(196) . chr(153) => 'e', |
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chr(196) . chr(154) => 'E', |
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chr(196) . chr(155) => 'e', |
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chr(196) . chr(156) => 'G', |
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chr(196) . chr(157) => 'g', |
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chr(196) . chr(158) => 'G', |
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chr(196) . chr(159) => 'g', |
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chr(196) . chr(160) => 'G', |
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chr(196) . chr(161) => 'g', |
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chr(196) . chr(162) => 'G', |
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chr(196) . chr(163) => 'g', |
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chr(196) . chr(164) => 'H', |
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chr(196) . chr(165) => 'h', |
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chr(196) . chr(166) => 'H', |
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chr(196) . chr(167) => 'h', |
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chr(196) . chr(168) => 'I', |
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chr(196) . chr(169) => 'i', |
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chr(196) . chr(170) => 'I', |
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chr(196) . chr(171) => 'i', |
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chr(196) . chr(172) => 'I', |
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chr(196) . chr(173) => 'i', |
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chr(196) . chr(174) => 'I', |
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chr(196) . chr(175) => 'i', |
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chr(196) . chr(176) => 'I', |
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chr(196) . chr(177) => 'i', |
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chr(196) . chr(178) => 'IJ', |
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chr(196) . chr(179) => 'ij', |
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chr(196) . chr(180) => 'J', |
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chr(196) . chr(181) => 'j', |
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chr(196) . chr(182) => 'K', |
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chr(196) . chr(183) => 'k', |
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chr(196) . chr(184) => 'k', |
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chr(196) . chr(185) => 'L', |
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chr(196) . chr(186) => 'l', |
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chr(196) . chr(187) => 'L', |
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chr(196) . chr(188) => 'l', |
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chr(196) . chr(189) => 'L', |
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chr(196) . chr(190) => 'l', |
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chr(196) . chr(191) => 'L', |
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chr(197) . chr(128) => 'l', |
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chr(197) . chr(129) => 'L', |
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chr(197) . chr(130) => 'l', |
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chr(197) . chr(131) => 'N', |
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chr(197) . chr(132) => 'n', |
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chr(197) . chr(133) => 'N', |
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chr(197) . chr(134) => 'n', |
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chr(197) . chr(135) => 'N', |
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chr(197) . chr(136) => 'n', |
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chr(197) . chr(137) => 'N', |
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chr(197) . chr(138) => 'n', |
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chr(197) . chr(139) => 'N', |
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chr(197) . chr(140) => 'O', |
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chr(197) . chr(141) => 'o', |
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chr(197) . chr(142) => 'O', |
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chr(197) . chr(143) => 'o', |
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chr(197) . chr(144) => 'O', |
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chr(197) . chr(145) => 'o', |
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chr(197) . chr(146) => 'OE', |
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chr(197) . chr(147) => 'oe', |
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chr(197) . chr(148) => 'R', |
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chr(197) . chr(149) => 'r', |
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chr(197) . chr(150) => 'R', |
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chr(197) . chr(151) => 'r', |
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chr(197) . chr(152) => 'R', |
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chr(197) . chr(153) => 'r', |
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chr(197) . chr(154) => 'S', |
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chr(197) . chr(155) => 's', |
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chr(197) . chr(156) => 'S', |
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chr(197) . chr(157) => 's', |
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chr(197) . chr(158) => 'S', |
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chr(197) . chr(159) => 's', |
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chr(197) . chr(160) => 'S', |
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chr(197) . chr(161) => 's', |
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chr(197) . chr(162) => 'T', |
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chr(197) . chr(163) => 't', |
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chr(197) . chr(164) => 'T', |
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chr(197) . chr(165) => 't', |
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chr(197) . chr(166) => 'T', |
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chr(197) . chr(167) => 't', |
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chr(197) . chr(168) => 'U', |
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chr(197) . chr(169) => 'u', |
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chr(197) . chr(170) => 'U', |
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chr(197) . chr(171) => 'u', |
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chr(197) . chr(172) => 'U', |
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chr(197) . chr(173) => 'u', |
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chr(197) . chr(174) => 'U', |
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chr(197) . chr(175) => 'u', |
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chr(197) . chr(176) => 'U', |
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chr(197) . chr(177) => 'u', |
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chr(197) . chr(178) => 'U', |
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chr(197) . chr(179) => 'u', |
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chr(197) . chr(180) => 'W', |
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chr(197) . chr(181) => 'w', |
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chr(197) . chr(182) => 'Y', |
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chr(197) . chr(183) => 'y', |
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chr(197) . chr(184) => 'Y', |
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chr(197) . chr(185) => 'Z', |
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chr(197) . chr(186) => 'z', |
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chr(197) . chr(187) => 'Z', |
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chr(197) . chr(188) => 'z', |
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chr(197) . chr(189) => 'Z', |
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chr(197) . chr(190) => 'z', |
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chr(197) . chr(191) => 's', |
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// Euro Sign |
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chr(226) . chr(130) . chr(172) => 'E', |
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); |
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273
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} |
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274
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275
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// transliterate |
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276
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return strtr($string, $charMap); |
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277
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} |
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278
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} |
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279
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cultuurnet /
udb3-php
