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<?php |
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/** |
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* A PHP port of URLify.js from the Django project |
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* (https://github.com/django/django/blob/master/django/contrib/admin/static/admin/js/urlify.js). |
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* Handles symbols from Latin languages, Greek, Turkish, Bulgarian, Russian, |
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* Ukrainian, Czech, Polish, Romanian, Latvian, Lithuanian, Vietnamese, Arabic, |
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* Serbian, Azerbaijani, and Slovakian. Symbols it cannot transliterate |
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* it will simply omit. |
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* |
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* Usage: |
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* |
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* echo URLify::filter (' J\'étudie le français '); |
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* // "jetudie-le-francais"
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* |
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* echo URLify::filter ('Lo siento, no hablo español.'); |
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* // "lo-siento-no-hablo-espanol"
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*/ |
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class URLify { |
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public static $maps = array ( |
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'de' => array ( /* German */ |
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'Ä' => 'Ae', 'Ö' => 'Oe', 'Ü' => 'Ue', 'ä' => 'ae', 'ö' => 'oe', 'ü' => 'ue', 'ß' => 'ss', |
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'ẞ' => 'SS' |
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), |
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'latin' => array ( |
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'À' => 'A', 'Á' => 'A', 'Â' => 'A', 'Ã' => 'A', 'Ä' => 'A', 'Å' => 'A','Ă' => 'A', 'Æ' => 'AE', 'Ç' => |
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'C', 'È' => 'E', 'É' => 'E', 'Ê' => 'E', 'Ë' => 'E', 'Ì' => 'I', 'Í' => 'I', 'Î' => 'I', |
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'Ï' => 'I', 'Ð' => 'D', 'Ñ' => 'N', 'Ò' => 'O', 'Ó' => 'O', 'Ô' => 'O', 'Õ' => 'O', 'Ö' => |
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'O', 'Ő' => 'O', 'Ø' => 'O','Ș' => 'S','Ț' => 'T', 'Ù' => 'U', 'Ú' => 'U', 'Û' => 'U', 'Ü' => 'U', 'Ű' => 'U', |
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'Ý' => 'Y', 'Þ' => 'TH', 'ß' => 'ss', 'à' => 'a', 'á' => 'a', 'â' => 'a', 'ã' => 'a', 'ä' => |
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'a', 'å' => 'a', 'ă' => 'a', 'æ' => 'ae', 'ç' => 'c', 'è' => 'e', 'é' => 'e', 'ê' => 'e', 'ë' => 'e', |
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'ì' => 'i', 'í' => 'i', 'î' => 'i', 'ï' => 'i', 'ð' => 'd', 'ñ' => 'n', 'ò' => 'o', 'ó' => |
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'o', 'ô' => 'o', 'õ' => 'o', 'ö' => 'o', 'ő' => 'o', 'ø' => 'o', 'ș' => 's', 'ț' => 't', 'ù' => 'u', 'ú' => 'u', |
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'û' => 'u', 'ü' => 'u', 'ű' => 'u', 'ý' => 'y', 'þ' => 'th', 'ÿ' => 'y' |
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), |
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'latin_symbols' => array ( |
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'©' => '(c)' |
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), |
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'el' => array ( /* Greek */ |
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'α' => 'a', 'β' => 'b', 'γ' => 'g', 'δ' => 'd', 'ε' => 'e', 'ζ' => 'z', 'η' => 'h', 'θ' => '8', |
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'ι' => 'i', 'κ' => 'k', 'λ' => 'l', 'μ' => 'm', 'ν' => 'n', 'ξ' => '3', 'ο' => 'o', 'π' => 'p', |
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'ρ' => 'r', 'σ' => 's', 'τ' => 't', 'υ' => 'y', 'φ' => 'f', 'χ' => 'x', 'ψ' => 'ps', 'ω' => 'w', |
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'ά' => 'a', 'έ' => 'e', 'ί' => 'i', 'ό' => 'o', 'ύ' => 'y', 'ή' => 'h', 'ώ' => 'w', 'ς' => 's', |
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'ϊ' => 'i', 'ΰ' => 'y', 'ϋ' => 'y', 'ΐ' => 'i', |
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'Α' => 'A', 'Β' => 'B', 'Γ' => 'G', 'Δ' => 'D', 'Ε' => 'E', 'Ζ' => 'Z', 'Η' => 'H', 'Θ' => '8', |
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'Ι' => 'I', 'Κ' => 'K', 'Λ' => 'L', 'Μ' => 'M', 'Ν' => 'N', 'Ξ' => '3', 'Ο' => 'O', 'Π' => 'P', |
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'Ρ' => 'R', 'Σ' => 'S', 'Τ' => 'T', 'Υ' => 'Y', 'Φ' => 'F', 'Χ' => 'X', 'Ψ' => 'PS', 'Ω' => 'W', |
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'Ά' => 'A', 'Έ' => 'E', 'Ί' => 'I', 'Ό' => 'O', 'Ύ' => 'Y', 'Ή' => 'H', 'Ώ' => 'W', 'Ϊ' => 'I', |
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'Ϋ' => 'Y' |
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), |
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'tr' => array ( /* Turkish */ |
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'ş' => 's', 'Ş' => 'S', 'ı' => 'i', 'İ' => 'I', 'ç' => 'c', 'Ç' => 'C', 'ü' => 'u', 'Ü' => 'U', |
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'ö' => 'o', 'Ö' => 'O', 'ğ' => 'g', 'Ğ' => 'G' |
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), |
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'bg' => array( /* Bulgarian */ |
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"Щ" => 'Sht', "Ш" => 'Sh', "Ч" => 'Ch', "Ц" => 'C', "Ю" => 'Yu', "Я" => 'Ya', |
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"Ж" => 'J', "А" => 'A', "Б" => 'B', "В" => 'V', "Г" => 'G', "Д" => 'D', |
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"Е" => 'E', "З" => 'Z', "И" => 'I', "Й" => 'Y', "К" => 'K', "Л" => 'L', |
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"М" => 'M', "Н" => 'N', "О" => 'O', "П" => 'P', "Р" => 'R', "С" => 'S', |
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"Т" => 'T', "У" => 'U', "Ф" => 'F', "Х" => 'H', "Ь" => '', "Ъ" => 'A', |
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"щ" => 'sht', "ш" => 'sh', "ч" => 'ch', "ц" => 'c', "ю" => 'yu', "я" => 'ya', |
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"ж" => 'j', "а" => 'a', "б" => 'b', "в" => 'v', "г" => 'g', "д" => 'd', |
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"е" => 'e', "з" => 'z', "и" => 'i', "й" => 'y', "к" => 'k', "л" => 'l', |
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"м" => 'm', "н" => 'n', "о" => 'o', "п" => 'p', "р" => 'r', "с" => 's', |
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"т" => 't', "у" => 'u', "ф" => 'f', "х" => 'h', "ь" => '', "ъ" => 'a' |
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), |
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'ru' => array ( /* Russian */ |
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'а' => 'a', 'б' => 'b', 'в' => 'v', 'г' => 'g', 'д' => 'd', 'е' => 'e', 'ё' => 'yo', 'ж' => 'zh', |
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'з' => 'z', 'и' => 'i', 'й' => 'j', 'к' => 'k', 'л' => 'l', 'м' => 'm', 'н' => 'n', 'о' => 'o', |
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'п' => 'p', 'р' => 'r', 'с' => 's', 'т' => 't', 'у' => 'u', 'ф' => 'f', 'х' => 'h', 'ц' => 'c', |
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'ч' => 'ch', 'ш' => 'sh', 'щ' => 'sh', 'ъ' => '', 'ы' => 'y', 'ь' => '', 'э' => 'e', 'ю' => 'yu', |
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'я' => 'ya', |
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'А' => 'A', 'Б' => 'B', 'В' => 'V', 'Г' => 'G', 'Д' => 'D', 'Е' => 'E', 'Ё' => 'Yo', 'Ж' => 'Zh', |
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'З' => 'Z', 'И' => 'I', 'Й' => 'J', 'К' => 'K', 'Л' => 'L', 'М' => 'M', 'Н' => 'N', 'О' => 'O', |
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'П' => 'P', 'Р' => 'R', 'С' => 'S', 'Т' => 'T', 'У' => 'U', 'Ф' => 'F', 'Х' => 'H', 'Ц' => 'C', |
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'Ч' => 'Ch', 'Ш' => 'Sh', 'Щ' => 'Sh', 'Ъ' => '', 'Ы' => 'Y', 'Ь' => '', 'Э' => 'E', 'Ю' => 'Yu', |
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'Я' => 'Ya', |
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'№' => '' |
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), |
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'uk' => array ( /* Ukrainian */ |
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'Є' => 'Ye', 'І' => 'I', 'Ї' => 'Yi', 'Ґ' => 'G', 'є' => 'ye', 'і' => 'i', 'ї' => 'yi', 'ґ' => 'g' |
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), |
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'cs' => array ( /* Czech */ |
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'č' => 'c', 'ď' => 'd', 'ě' => 'e', 'ň' => 'n', 'ř' => 'r', 'š' => 's', 'ť' => 't', 'ů' => 'u', |
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'ž' => 'z', 'Č' => 'C', 'Ď' => 'D', 'Ě' => 'E', 'Ň' => 'N', 'Ř' => 'R', 'Š' => 'S', 'Ť' => 'T', |
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'Ů' => 'U', 'Ž' => 'Z' |
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), |
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'pl' => array ( /* Polish */ |
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'ą' => 'a', 'ć' => 'c', 'ę' => 'e', 'ł' => 'l', 'ń' => 'n', 'ó' => 'o', 'ś' => 's', 'ź' => 'z', |
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'ż' => 'z', 'Ą' => 'A', 'Ć' => 'C', 'Ę' => 'e', 'Ł' => 'L', 'Ń' => 'N', 'Ó' => 'O', 'Ś' => 'S', |
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'Ź' => 'Z', 'Ż' => 'Z' |
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), |
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'ro' => array ( /* Romanian */ |
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'ă' => 'a', 'â' => 'a', 'î' => 'i', 'ș' => 's', 'ț' => 't', 'Ţ' => 'T', 'ţ' => 't' |
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), |
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'lv' => array ( /* Latvian */ |
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'ā' => 'a', 'č' => 'c', 'ē' => 'e', 'ģ' => 'g', 'ī' => 'i', 'ķ' => 'k', 'ļ' => 'l', 'ņ' => 'n', |
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'š' => 's', 'ū' => 'u', 'ž' => 'z', 'Ā' => 'A', 'Č' => 'C', 'Ē' => 'E', 'Ģ' => 'G', 'Ī' => 'i', |
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'Ķ' => 'k', 'Ļ' => 'L', 'Ņ' => 'N', 'Š' => 'S', 'Ū' => 'u', 'Ž' => 'Z' |
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), |
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'lt' => array ( /* Lithuanian */ |
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'ą' => 'a', 'č' => 'c', 'ę' => 'e', 'ė' => 'e', 'į' => 'i', 'š' => 's', 'ų' => 'u', 'ū' => 'u', 'ž' => 'z', |
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'Ą' => 'A', 'Č' => 'C', 'Ę' => 'E', 'Ė' => 'E', 'Į' => 'I', 'Š' => 'S', 'Ų' => 'U', 'Ū' => 'U', 'Ž' => 'Z' |
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), |
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'vn' => array ( /* Vietnamese */ |
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'Á' => 'A', 'À' => 'A', 'Ả' => 'A', 'Ã' => 'A', 'Ạ' => 'A', 'Ă' => 'A', 'Ắ' => 'A', 'Ằ' => 'A', 'Ẳ' => 'A', 'Ẵ' => 'A', 'Ặ' => 'A', 'Â' => 'A', 'Ấ' => 'A', 'Ầ' => 'A', 'Ẩ' => 'A', 'Ẫ' => 'A', 'Ậ' => 'A', |
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'á' => 'a', 'à' => 'a', 'ả' => 'a', 'ã' => 'a', 'ạ' => 'a', 'ă' => 'a', 'ắ' => 'a', 'ằ' => 'a', 'ẳ' => 'a', 'ẵ' => 'a', 'ặ' => 'a', 'â' => 'a', 'ấ' => 'a', 'ầ' => 'a', 'ẩ' => 'a', 'ẫ' => 'a', 'ậ' => 'a', |
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'É' => 'E', 'È' => 'E', 'Ẻ' => 'E', 'Ẽ' => 'E', 'Ẹ' => 'E', 'Ê' => 'E', 'Ế' => 'E', 'Ề' => 'E', 'Ể' => 'E', 'Ễ' => 'E', 'Ệ' => 'E', |
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'é' => 'e', 'è' => 'e', 'ẻ' => 'e', 'ẽ' => 'e', 'ẹ' => 'e', 'ê' => 'e', 'ế' => 'e', 'ề' => 'e', 'ể' => 'e', 'ễ' => 'e', 'ệ' => 'e', |
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'Í' => 'I', 'Ì' => 'I', 'Ỉ' => 'I', 'Ĩ' => 'I', 'Ị' => 'I', 'í' => 'i', 'ì' => 'i', 'ỉ' => 'i', 'ĩ' => 'i', 'ị' => 'i', |
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'Ó' => 'O', 'Ò' => 'O', 'Ỏ' => 'O', 'Õ' => 'O', 'Ọ' => 'O', 'Ô' => 'O', 'Ố' => 'O', 'Ồ' => 'O', 'Ổ' => 'O', 'Ỗ' => 'O', 'Ộ' => 'O', 'Ơ' => 'O', 'Ớ' => 'O', 'Ờ' => 'O', 'Ở' => 'O', 'Ỡ' => 'O', 'Ợ' => 'O', |
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'ó' => 'o', 'ò' => 'o', 'ỏ' => 'o', 'õ' => 'o', 'ọ' => 'o', 'ô' => 'o', 'ố' => 'o', 'ồ' => 'o', 'ổ' => 'o', 'ỗ' => 'o', 'ộ' => 'o', 'ơ' => 'o', 'ớ' => 'o', 'ờ' => 'o', 'ở' => 'o', 'ỡ' => 'o', 'ợ' => 'o', |
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'Ú' => 'U', 'Ù' => 'U', 'Ủ' => 'U', 'Ũ' => 'U', 'Ụ' => 'U', 'Ư' => 'U', 'Ứ' => 'U', 'Ừ' => 'U', 'Ử' => 'U', 'Ữ' => 'U', 'Ự' => 'U', |
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'ú' => 'u', 'ù' => 'u', 'ủ' => 'u', 'ũ' => 'u', 'ụ' => 'u', 'ư' => 'u', 'ứ' => 'u', 'ừ' => 'u', 'ử' => 'u', 'ữ' => 'u', 'ự' => 'u', |
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'Ý' => 'Y', 'Ỳ' => 'Y', 'Ỷ' => 'Y', 'Ỹ' => 'Y', 'Ỵ' => 'Y', 'ý' => 'y', 'ỳ' => 'y', 'ỷ' => 'y', 'ỹ' => 'y', 'ỵ' => 'y', |
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'Đ' => 'D', 'đ' => 'd' |
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), |
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'ar' => array ( /* Arabic */ |
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'أ' => 'a', 'ب' => 'b', 'ت' => 't', 'ث' => 'th', 'ج' => 'g', 'ح' => 'h', 'خ' => 'kh', 'د' => 'd', |
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'ذ' => 'th', 'ر' => 'r', 'ز' => 'z', 'س' => 's', 'ش' => 'sh', 'ص' => 's', 'ض' => 'd', 'ط' => 't', |
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'ظ' => 'th', 'ع' => 'aa', 'غ' => 'gh', 'ف' => 'f', 'ق' => 'k', 'ك' => 'k', 'ل' => 'l', 'م' => 'm', |
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'ن' => 'n', 'ه' => 'h', 'و' => 'o', 'ي' => 'y' |
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), |
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'sr' => array ( /* Serbian */ |
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'ђ' => 'dj', 'ј' => 'j', 'љ' => 'lj', 'њ' => 'nj', 'ћ' => 'c', 'џ' => 'dz', 'đ' => 'dj', |
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'Ђ' => 'Dj', 'Ј' => 'j', 'Љ' => 'Lj', 'Њ' => 'Nj', 'Ћ' => 'C', 'Џ' => 'Dz', 'Đ' => 'Dj' |
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), |
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'az' => array ( /* Azerbaijani */ |
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'ç' => 'c', 'ə' => 'e', 'ğ' => 'g', 'ı' => 'i', 'ö' => 'o', 'ş' => 's', 'ü' => 'u', |
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'Ç' => 'C', 'Ə' => 'E', 'Ğ' => 'G', 'İ' => 'I', 'Ö' => 'O', 'Ş' => 'S', 'Ü' => 'U' |
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), |
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'slo' => array ( /* Slovakian */ |
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'DZ' => 'DZ', 'dz' => 'dz', 'DŽ' => 'DZ', 'dž' => 'dz', 'CH' => 'CH', 'Ĺ' => 'L', 'ĺ' => 'l', 'Ľ' => 'L', |
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'ľ' => 'l', 'Ŕ' => 'R', 'ŕ' => 'r' |
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), |
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'add' => array ( /* Custom */ |
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'Ĉ' => 'C', 'ĉ' => 'c', 'Ċ' => 'C', 'ċ' => 'c', 'Ď' => 'D', 'ď' => 'd', 'Ĕ' => 'E', 'ĕ' => 'e', 'Ĝ' => 'G', 'ĝ' => 'g', |
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'Ġ' => 'G', 'ġ' => 'g', 'Ĥ' => 'H', 'ĥ' => 'h', 'Ħ' => 'H', 'ħ' => 'h', 'Ĭ' => 'I', 'ĭ' => 'i', 'IJ' => 'J', 'ij' => 'j', |
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'Ĵ' => 'J', 'ĵ' => 'j', 'Ŀ' => 'L', 'ŀ' => 'l', 'ʼn' => 'n', 'Ō' => 'O', 'ō' => 'o', 'Ŏ' => 'O', 'ŏ' => 'o', 'Œ' => 'OE', |
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'œ' => 'oe', 'Ŗ' => 'R', 'ŗ' => 'r', 'Ŝ' => 'S', 'ŝ' => 's', 'Ŧ' => 'T', 'ŧ' => 't', 'Ŭ' => 'U', 'ŭ' => 'u', 'Ŵ' => 'W', |
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'ŵ' => 'w', 'Ŷ' => 'Y', 'ŷ' => 'y', 'Ÿ' => 'Y', 'ſ' => 'S', 'Ƒ' => 'F', 'ƒ' => 'f', 'Ǎ' => 'A', 'ǎ' => 'a', 'Ǐ' => 'I', |
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'ǐ' => 'i', 'Ǒ' => 'O', 'ǒ' => 'o', 'Ǔ' => 'U', 'ǔ' => 'u', 'Ǖ' => 'U', 'ǖ' => 'u', 'Ǘ' => 'U', 'ǘ' => 'u', 'Ǚ' => 'U', |
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'ǚ' => 'u', 'Ǜ' => 'U', 'ǜ' => 'u', 'Ǻ' => 'A', 'ǻ' => 'a', 'Ǽ' => 'AE', 'ǽ' => 'ae', 'Ǿ' => 'O', 'ǿ' => 'o' |
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) |
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); |
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/** |
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* List of words to remove from URLs. |
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*/ |
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public static $remove_list = array ( |
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'a', 'an', 'as', 'at', 'before', 'but', 'by', 'for', 'from', |
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'is', 'in', 'into', 'like', 'of', 'off', 'on', 'onto', 'per', |
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'since', 'than', 'the', 'this', 'that', 'to', 'up', 'via', |
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'with' |
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); |
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/** |
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* The character map. |
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*/ |
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private static $map = array (); |
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/** |
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* The character list as a string. |
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*/ |
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private static $chars = ''; |
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/** |
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* The character list as a regular expression. |
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*/ |
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private static $regex = ''; |
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/** |
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* The current language |
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*/ |
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private static $language = ''; |
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/** |
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* Initializes the character map. |
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*/ |
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private static function init ($language = "") { |
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if (count (self::$map) > 0 && (($language == "") || ($language == self::$language))) { |
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return; |
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} |
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/* Is a specific map associated with $language ? */ |
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if (isset(self::$maps[$language]) && is_array(self::$maps[$language])) { |
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/* Move this map to end. This means it will have priority over others */ |
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$m = self::$maps[$language]; |
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unset(self::$maps[$language]); |
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self::$maps[$language] = $m; |
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} |
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/* Reset static vars */ |
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self::$language = $language; |
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self::$map = array(); |
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self::$chars = ''; |
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foreach (self::$maps as $map) { |
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foreach ($map as $orig => $conv) { |
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self::$map[$orig] = $conv; |
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self::$chars .= $orig; |
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} |
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} |
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self::$regex = '/[' . self::$chars . ']/u'; |
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} |
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/** |
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* Add new characters to the list. `$map` should be a hash. |
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*/ |
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public static function add_chars ($map) { |
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|
if (! is_array ($map)) { |
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|
throw new LogicException ('$map must be an associative array.'); |
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} |
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|
self::$maps[] = $map; |
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self::$map = array (); |
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|
self::$chars = ''; |
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} |
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|
/** |
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|
* Append words to the remove list. Accepts either single words |
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|
* or an array of words. |
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|
*/ |
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|
public static function remove_words ($words) { |
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|
$words = is_array ($words) ? $words : array ($words); |
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|
self::$remove_list = array_merge (self::$remove_list, $words); |
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} |
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/** |
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|
* Transliterates characters to their ASCII equivalents. |
|
|
|
* $language specifies a priority for a specific language. |
|
|
|
* The latter is useful if languages have different rules for the same character. |
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|
*/ |
|
|
|
public static function downcode ($text, $language = "") { |
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|
|
self::init ($language); |
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|
|
|
|
|
|
if (preg_match_all (self::$regex, $text, $matches)) { |
|
|
|
for ($i = 0; $i < count ($matches[0]); $i++) { |
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|
|
$char = $matches[0][$i]; |
|
|
|
if (isset (self::$map[$char])) { |
|
|
|
$text = str_replace ($char, self::$map[$char], $text); |
|
|
|
} |
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|
|
} |
|
|
|
} |
|
|
|
return $text; |
|
|
|
} |
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|
|
|
|
|
/** |
|
|
|
* Filters a string, e.g., "Petty theft" to "petty-theft" |
|
|
|
*/ |
|
|
|
public static function filter ($text, $length = 60, $language = "", $file_name = false, $use_remove_list = true) { |
|
|
|
$text = self::downcode ($text,$language); |
|
|
|
|
|
|
|
if ($use_remove_list) { |
|
|
|
// remove all these words from the string before urlifying
|
|
|
|
$text = preg_replace ('/\b(' . join ('|', self::$remove_list) . ')\b/i', '', $text); |
|
|
|
} |
|
|
|
|
|
|
|
// if downcode doesn't hit, the char will be stripped here
|
|
|
|
$remove_pattern = ($file_name) ? '/[^_\-.\-a-zA-Z0-9\s]/u' : '/[^\s_\-a-zA-Z0-9]/u'; |
|
|
|
$text = preg_replace ($remove_pattern, '', $text); // remove unneeded chars
|
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|
|
$text = str_replace ('_', ' ', $text); // treat underscores as spaces
|
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|
|
$text = preg_replace ('/^\s+|\s+$/u', '', $text); // trim leading/trailing spaces
|
|
|
|
$text = preg_replace ('/[-\s]+/u', '-', $text); // convert spaces to hyphens
|
|
|
|
$text = strtolower ($text); // convert to lowercase
|
|
|
|
return trim (substr ($text, 0, $length), '-'); // trim to first $length chars
|
|
|
|
} |
|
|
|
|
|
|
|
/** |
|
|
|
* Alias of `URLify::downcode()`. |
|
|
|
*/ |
|
|
|
public static function transliterate ($text) { |
|
|
|
return self::downcode ($text); |
|
|
|
} |
|
|
|
} |