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<?php |
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namespace Elgg; |
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/** |
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* Elgg Transliterate |
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* |
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* For creating "friendly titles" for URLs |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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* This software consists of voluntary contributions made by many individuals |
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* and is licensed under the LGPL. For more information, see |
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* <http://www.doctrine-project.org>. |
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* |
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* @package Elgg.Core |
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* @author Konsta Vesterinen <[email protected]> |
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* @author Jonathan H. Wage <[email protected]> |
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* @author Steve Clay <[email protected]> |
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* |
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* @access private Plugin authors should not use this directly |
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*/ |
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class Translit { |
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/** |
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* Create a version of a string for embedding in a URL |
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* |
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* @param string $string A UTF-8 string |
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* @param string $separator The character to separate words with |
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* @return string |
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*/ |
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1 |
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static public function urlize($string, $separator = '-') { |
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// Iñtërnâtiônàlizætiøn, AND 日本語! |
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// try to force combined chars because the translit map and others expect it |
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1 |
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if (self::hasNormalizerSupport()) { |
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$nfc = normalizer_normalize($string); |
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1 |
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if (is_string($nfc)) { |
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1 |
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$string = $nfc; |
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} |
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} |
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// Internationalization, AND 日本語! |
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$string = self::transliterateAscii($string); |
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// allow HTML tags in titles |
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$string = preg_replace('~<([a-zA-Z][^>]*)>~', ' $1 ', $string); |
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// more substitutions |
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// @todo put these somewhere else |
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1 |
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$string = strtr($string, [ |
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// currency |
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1 |
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"\xE2\x82\xAC" /* € */ => ' E ', |
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"\xC2\xA3" /* £ */ => ' GBP ', |
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]); |
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// remove all ASCII except 0-9a-zA-Z, hyphen, underscore, and whitespace |
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// note: "x" modifier did not work with this pattern. |
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1 |
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$string = preg_replace('~[' |
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. '\x00-\x08' // control chars |
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. '\x0b\x0c' // vert tab, form feed |
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. '\x0e-\x1f' // control chars |
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. '\x21-\x2c' // ! ... , |
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. '\x2e\x2f' // . slash |
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. '\x3a-\x40' // : ... @ |
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. '\x5b-\x5e' // [ ... ^ |
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. '\x60' // ` |
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. '\x7b-\x7f' // { ... DEL |
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. ']~', '', $string); |
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$string = strtr($string, '', ''); |
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// internationalization, and 日本語! |
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// note: not using elgg_strtolower to keep this class portable |
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1 |
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$string = is_callable('mb_strtolower') ? mb_strtolower($string, 'UTF-8') : strtolower($string); |
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// split by ASCII chars not in 0-9a-zA-Z |
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// note: we cannot use [^0-9a-zA-Z] because that matches multibyte chars. |
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// note: "x" modifier did not work with this pattern. |
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$pattern = '~[' |
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. '\x00-\x2f' // controls ... slash |
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. '\x3a-\x40' // : ... @ |
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. '\x5b-\x60' // [ ... ` |
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. '\x7b-\x7f' // { ... DEL |
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1 |
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. ']+~x'; |
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// ['internationalization', 'and', '日本語'] |
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$words = preg_split($pattern, $string, -1, PREG_SPLIT_NO_EMPTY); |
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// ['internationalization', 'and', '%E6%97%A5%E6%9C%AC%E8%AA%9E'] |
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1 |
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$words = array_map('urlencode', $words); |
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// internationalization-and-%E6%97%A5%E6%9C%AC%E8%AA%9E |
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return implode($separator, $words); |
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} |
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/** |
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* Transliterate Western multibyte chars to ASCII |
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* |
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* @param string $utf8 a UTF-8 string |
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* @return string |
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*/ |
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static public function transliterateAscii($utf8) { |
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static $map = null; |
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if (!preg_match('/[\x80-\xff]/', $utf8)) { |
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return $utf8; |
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} |
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if (null === $map) { |
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$map = self::getAsciiTranslitMap(); |
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} |
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return strtr($utf8, $map); |
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} |
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/** |
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* Get array of UTF-8 (NFC) character replacements. |
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* |
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* @return array |
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*/ |
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static public function getAsciiTranslitMap() { |
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return [ |
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// Decompositions for Latin-1 Supplement |
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"\xC2\xAA" /* ª */ => 'a', "\xC2\xBA" /* º */ => 'o', "\xC3\x80" /* À */ => 'A', |
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"\xC3\x81" /* Á */ => 'A', "\xC3\x82" /* Â */ => 'A', "\xC3\x83" /* Ã */ => 'A', |
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"\xC3\x84" /* Ä */ => 'A', "\xC3\x85" /* Å */ => 'A', "\xC3\x86" /* Æ */ => 'AE', |
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"\xC3\x87" /* Ç */ => 'C', "\xC3\x88" /* È */ => 'E', "\xC3\x89" /* É */ => 'E', |
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"\xC3\x8A" /* Ê */ => 'E', "\xC3\x8B" /* Ë */ => 'E', "\xC3\x8C" /* Ì */ => 'I', |
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"\xC3\x8D" /* Í */ => 'I', "\xC3\x8E" /* Î */ => 'I', "\xC3\x8F" /* Ï */ => 'I', |
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"\xC3\x90" /* Ð */ => 'D', "\xC3\x91" /* Ñ */ => 'N', "\xC3\x92" /* Ò */ => 'O', |
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"\xC3\x93" /* Ó */ => 'O', "\xC3\x94" /* Ô */ => 'O', "\xC3\x95" /* Õ */ => 'O', |
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"\xC3\x96" /* Ö */ => 'O', "\xC3\x99" /* Ù */ => 'U', "\xC3\x9A" /* Ú */ => 'U', |
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"\xC3\x9B" /* Û */ => 'U', "\xC3\x9C" /* Ü */ => 'U', "\xC3\x9D" /* Ý */ => 'Y', |
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"\xC3\x9E" /* Þ */ => 'TH', "\xC3\x9F" /* ß */ => 'ss', "\xC3\xA0" /* à */ => 'a', |
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"\xC3\xA1" /* á */ => 'a', "\xC3\xA2" /* â */ => 'a', "\xC3\xA3" /* ã */ => 'a', |
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"\xC3\xA4" /* ä */ => 'a', "\xC3\xA5" /* å */ => 'a', "\xC3\xA6" /* æ */ => 'ae', |
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"\xC3\xA7" /* ç */ => 'c', "\xC3\xA8" /* è */ => 'e', "\xC3\xA9" /* é */ => 'e', |
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"\xC3\xAA" /* ê */ => 'e', "\xC3\xAB" /* ë */ => 'e', "\xC3\xAC" /* ì */ => 'i', |
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"\xC3\xAD" /* í */ => 'i', "\xC3\xAE" /* î */ => 'i', "\xC3\xAF" /* ï */ => 'i', |
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"\xC3\xB0" /* ð */ => 'd', "\xC3\xB1" /* ñ */ => 'n', "\xC3\xB2" /* ò */ => 'o', |
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"\xC3\xB3" /* ó */ => 'o', "\xC3\xB4" /* ô */ => 'o', "\xC3\xB5" /* õ */ => 'o', |
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"\xC3\xB6" /* ö */ => 'o', "\xC3\xB8" /* ø */ => 'o', "\xC3\xB9" /* ù */ => 'u', |
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"\xC3\xBA" /* ú */ => 'u', "\xC3\xBB" /* û */ => 'u', "\xC3\xBC" /* ü */ => 'u', |
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"\xC3\xBD" /* ý */ => 'y', "\xC3\xBE" /* þ */ => 'th', "\xC3\xBF" /* ÿ */ => 'y', |
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"\xC3\x98" /* Ø */ => 'O', |
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// Decompositions for Latin Extended-A |
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"\xC4\x80" /* Ā */ => 'A', "\xC4\x81" /* ā */ => 'a', "\xC4\x82" /* Ă */ => 'A', |
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"\xC4\x83" /* ă */ => 'a', "\xC4\x84" /* Ą */ => 'A', "\xC4\x85" /* ą */ => 'a', |
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"\xC4\x86" /* Ć */ => 'C', "\xC4\x87" /* ć */ => 'c', "\xC4\x88" /* Ĉ */ => 'C', |
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"\xC4\x89" /* ĉ */ => 'c', "\xC4\x8A" /* Ċ */ => 'C', "\xC4\x8B" /* ċ */ => 'c', |
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"\xC4\x8C" /* Č */ => 'C', "\xC4\x8D" /* č */ => 'c', "\xC4\x8E" /* Ď */ => 'D', |
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"\xC4\x8F" /* ď */ => 'd', "\xC4\x90" /* Đ */ => 'D', "\xC4\x91" /* đ */ => 'd', |
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"\xC4\x92" /* Ē */ => 'E', "\xC4\x93" /* ē */ => 'e', "\xC4\x94" /* Ĕ */ => 'E', |
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"\xC4\x95" /* ĕ */ => 'e', "\xC4\x96" /* Ė */ => 'E', "\xC4\x97" /* ė */ => 'e', |
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"\xC4\x98" /* Ę */ => 'E', "\xC4\x99" /* ę */ => 'e', "\xC4\x9A" /* Ě */ => 'E', |
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"\xC4\x9B" /* ě */ => 'e', "\xC4\x9C" /* Ĝ */ => 'G', "\xC4\x9D" /* ĝ */ => 'g', |
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"\xC4\x9E" /* Ğ */ => 'G', "\xC4\x9F" /* ğ */ => 'g', "\xC4\xA0" /* Ġ */ => 'G', |
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"\xC4\xA1" /* ġ */ => 'g', "\xC4\xA2" /* Ģ */ => 'G', "\xC4\xA3" /* ģ */ => 'g', |
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"\xC4\xA4" /* Ĥ */ => 'H', "\xC4\xA5" /* ĥ */ => 'h', "\xC4\xA6" /* Ħ */ => 'H', |
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"\xC4\xA7" /* ħ */ => 'h', "\xC4\xA8" /* Ĩ */ => 'I', "\xC4\xA9" /* ĩ */ => 'i', |
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"\xC4\xAA" /* Ī */ => 'I', "\xC4\xAB" /* ī */ => 'i', "\xC4\xAC" /* Ĭ */ => 'I', |
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"\xC4\xAD" /* ĭ */ => 'i', "\xC4\xAE" /* Į */ => 'I', "\xC4\xAF" /* į */ => 'i', |
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"\xC4\xB0" /* İ */ => 'I', "\xC4\xB1" /* ı */ => 'i', "\xC4\xB2" /* IJ */ => 'IJ', |
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"\xC4\xB3" /* ij */ => 'ij', "\xC4\xB4" /* Ĵ */ => 'J', "\xC4\xB5" /* ĵ */ => 'j', |
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"\xC4\xB6" /* Ķ */ => 'K', "\xC4\xB7" /* ķ */ => 'k', "\xC4\xB8" /* ĸ */ => 'k', |
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"\xC4\xB9" /* Ĺ */ => 'L', "\xC4\xBA" /* ĺ */ => 'l', "\xC4\xBB" /* Ļ */ => 'L', |
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"\xC4\xBC" /* ļ */ => 'l', "\xC4\xBD" /* Ľ */ => 'L', "\xC4\xBE" /* ľ */ => 'l', |
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"\xC4\xBF" /* Ŀ */ => 'L', "\xC5\x80" /* ŀ */ => 'l', "\xC5\x81" /* Ł */ => 'L', |
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"\xC5\x82" /* ł */ => 'l', "\xC5\x83" /* Ń */ => 'N', "\xC5\x84" /* ń */ => 'n', |
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"\xC5\x85" /* Ņ */ => 'N', "\xC5\x86" /* ņ */ => 'n', "\xC5\x87" /* Ň */ => 'N', |
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"\xC5\x88" /* ň */ => 'n', "\xC5\x89" /* ʼn */ => 'N', "\xC5\x8A" /* Ŋ */ => 'n', |
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"\xC5\x8B" /* ŋ */ => 'N', "\xC5\x8C" /* Ō */ => 'O', "\xC5\x8D" /* ō */ => 'o', |
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"\xC5\x8E" /* Ŏ */ => 'O', "\xC5\x8F" /* ŏ */ => 'o', "\xC5\x90" /* Ő */ => 'O', |
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"\xC5\x91" /* ő */ => 'o', "\xC5\x92" /* Œ */ => 'OE', "\xC5\x93" /* œ */ => 'oe', |
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"\xC5\x94" /* Ŕ */ => 'R', "\xC5\x95" /* ŕ */ => 'r', "\xC5\x96" /* Ŗ */ => 'R', |
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"\xC5\x97" /* ŗ */ => 'r', "\xC5\x98" /* Ř */ => 'R', "\xC5\x99" /* ř */ => 'r', |
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"\xC5\x9A" /* Ś */ => 'S', "\xC5\x9B" /* ś */ => 's', "\xC5\x9C" /* Ŝ */ => 'S', |
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"\xC5\x9D" /* ŝ */ => 's', "\xC5\x9E" /* Ş */ => 'S', "\xC5\x9F" /* ş */ => 's', |
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"\xC5\xA0" /* Š */ => 'S', "\xC5\xA1" /* š */ => 's', "\xC5\xA2" /* Ţ */ => 'T', |
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"\xC5\xA3" /* ţ */ => 't', "\xC5\xA4" /* Ť */ => 'T', "\xC5\xA5" /* ť */ => 't', |
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"\xC5\xA6" /* Ŧ */ => 'T', "\xC5\xA7" /* ŧ */ => 't', "\xC5\xA8" /* Ũ */ => 'U', |
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"\xC5\xA9" /* ũ */ => 'u', "\xC5\xAA" /* Ū */ => 'U', "\xC5\xAB" /* ū */ => 'u', |
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"\xC5\xAC" /* Ŭ */ => 'U', "\xC5\xAD" /* ŭ */ => 'u', "\xC5\xAE" /* Ů */ => 'U', |
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"\xC5\xAF" /* ů */ => 'u', "\xC5\xB0" /* Ű */ => 'U', "\xC5\xB1" /* ű */ => 'u', |
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"\xC5\xB2" /* Ų */ => 'U', "\xC5\xB3" /* ų */ => 'u', "\xC5\xB4" /* Ŵ */ => 'W', |
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"\xC5\xB5" /* ŵ */ => 'w', "\xC5\xB6" /* Ŷ */ => 'Y', "\xC5\xB7" /* ŷ */ => 'y', |
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"\xC5\xB8" /* Ÿ */ => 'Y', "\xC5\xB9" /* Ź */ => 'Z', "\xC5\xBA" /* ź */ => 'z', |
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"\xC5\xBB" /* Ż */ => 'Z', "\xC5\xBC" /* ż */ => 'z', "\xC5\xBD" /* Ž */ => 'Z', |
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"\xC5\xBE" /* ž */ => 'z', "\xC5\xBF" /* ſ */ => 's', |
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// Decompositions for Latin Extended-B |
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"\xC8\x98" /* Ș */ => 'S', "\xC8\x99" /* ș */ => 's', |
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"\xC8\x9A" /* Ț */ => 'T', "\xC8\x9B" /* ț */ => 't', |
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// unmarked |
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"\xC6\xA0" /* Ơ */ => 'O', "\xC6\xA1" /* ơ */ => 'o', |
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"\xC6\xAF" /* Ư */ => 'U', "\xC6\xB0" /* ư */ => 'u', |
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// grave accent |
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"\xE1\xBA\xA6" /* Ầ */ => 'A', "\xE1\xBA\xA7" /* ầ */ => 'a', |
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"\xE1\xBA\xB0" /* Ằ */ => 'A', "\xE1\xBA\xB1" /* ằ */ => 'a', |
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"\xE1\xBB\x80" /* Ề */ => 'E', "\xE1\xBB\x81" /* ề */ => 'e', |
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"\xE1\xBB\x92" /* Ồ */ => 'O', "\xE1\xBB\x93" /* ồ */ => 'o', |
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"\xE1\xBB\x9C" /* Ờ */ => 'O', "\xE1\xBB\x9D" /* ờ */ => 'o', |
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"\xE1\xBB\xAA" /* Ừ */ => 'U', "\xE1\xBB\xAB" /* ừ */ => 'u', |
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|
"\xE1\xBB\xB2" /* Ỳ */ => 'Y', "\xE1\xBB\xB3" /* ỳ */ => 'y', |
|
208
|
|
|
// hook |
|
209
|
|
|
"\xE1\xBA\xA2" /* Ả */ => 'A', "\xE1\xBA\xA3" /* ả */ => 'a', |
|
210
|
|
|
"\xE1\xBA\xA8" /* Ẩ */ => 'A', "\xE1\xBA\xA9" /* ẩ */ => 'a', |
|
211
|
|
|
"\xE1\xBA\xB2" /* Ẳ */ => 'A', "\xE1\xBA\xB3" /* ẳ */ => 'a', |
|
212
|
|
|
"\xE1\xBA\xBA" /* Ẻ */ => 'E', "\xE1\xBA\xBB" /* ẻ */ => 'e', |
|
213
|
|
|
"\xE1\xBB\x82" /* Ể */ => 'E', "\xE1\xBB\x83" /* ể */ => 'e', |
|
214
|
|
|
"\xE1\xBB\x88" /* Ỉ */ => 'I', "\xE1\xBB\x89" /* ỉ */ => 'i', |
|
215
|
|
|
"\xE1\xBB\x8E" /* Ỏ */ => 'O', "\xE1\xBB\x8F" /* ỏ */ => 'o', |
|
216
|
|
|
"\xE1\xBB\x94" /* Ổ */ => 'O', "\xE1\xBB\x95" /* ổ */ => 'o', |
|
217
|
|
|
"\xE1\xBB\x9E" /* Ở */ => 'O', "\xE1\xBB\x9F" /* ở */ => 'o', |
|
218
|
|
|
"\xE1\xBB\xA6" /* Ủ */ => 'U', "\xE1\xBB\xA7" /* ủ */ => 'u', |
|
219
|
|
|
"\xE1\xBB\xAC" /* Ử */ => 'U', "\xE1\xBB\xAD" /* ử */ => 'u', |
|
220
|
|
|
"\xE1\xBB\xB6" /* Ỷ */ => 'Y', "\xE1\xBB\xB7" /* ỷ */ => 'y', |
|
221
|
|
|
// tilde |
|
222
|
|
|
"\xE1\xBA\xAA" /* Ẫ */ => 'A', "\xE1\xBA\xAB" /* ẫ */ => 'a', |
|
223
|
|
|
"\xE1\xBA\xB4" /* Ẵ */ => 'A', "\xE1\xBA\xB5" /* ẵ */ => 'a', |
|
224
|
|
|
"\xE1\xBA\xBC" /* Ẽ */ => 'E', "\xE1\xBA\xBD" /* ẽ */ => 'e', |
|
225
|
|
|
"\xE1\xBB\x84" /* Ễ */ => 'E', "\xE1\xBB\x85" /* ễ */ => 'e', |
|
226
|
|
|
"\xE1\xBB\x96" /* Ỗ */ => 'O', "\xE1\xBB\x97" /* ỗ */ => 'o', |
|
227
|
|
|
"\xE1\xBB\xA0" /* Ỡ */ => 'O', "\xE1\xBB\xA1" /* ỡ */ => 'o', |
|
228
|
|
|
"\xE1\xBB\xAE" /* Ữ */ => 'U', "\xE1\xBB\xAF" /* ữ */ => 'u', |
|
229
|
|
|
"\xE1\xBB\xB8" /* Ỹ */ => 'Y', "\xE1\xBB\xB9" /* ỹ */ => 'y', |
|
230
|
|
|
// acute accent |
|
231
|
|
|
"\xE1\xBA\xA4" /* Ấ */ => 'A', "\xE1\xBA\xA5" /* ấ */ => 'a', |
|
232
|
|
|
"\xE1\xBA\xAE" /* Ắ */ => 'A', "\xE1\xBA\xAF" /* ắ */ => 'a', |
|
233
|
|
|
"\xE1\xBA\xBE" /* Ế */ => 'E', "\xE1\xBA\xBF" /* ế */ => 'e', |
|
234
|
|
|
"\xE1\xBB\x90" /* Ố */ => 'O', "\xE1\xBB\x91" /* ố */ => 'o', |
|
235
|
|
|
"\xE1\xBB\x9A" /* Ớ */ => 'O', "\xE1\xBB\x9B" /* ớ */ => 'o', |
|
236
|
|
|
"\xE1\xBB\xA8" /* Ứ */ => 'U', "\xE1\xBB\xA9" /* ứ */ => 'u', |
|
237
|
|
|
// dot below |
|
238
|
|
|
"\xE1\xBA\xA0" /* Ạ */ => 'A', "\xE1\xBA\xA1" /* ạ */ => 'a', |
|
239
|
|
|
"\xE1\xBA\xAC" /* Ậ */ => 'A', "\xE1\xBA\xAD" /* ậ */ => 'a', |
|
240
|
|
|
"\xE1\xBA\xB6" /* Ặ */ => 'A', "\xE1\xBA\xB7" /* ặ */ => 'a', |
|
241
|
|
|
"\xE1\xBA\xB8" /* Ẹ */ => 'E', "\xE1\xBA\xB9" /* ẹ */ => 'e', |
|
242
|
|
|
"\xE1\xBB\x86" /* Ệ */ => 'E', "\xE1\xBB\x87" /* ệ */ => 'e', |
|
243
|
|
|
"\xE1\xBB\x8A" /* Ị */ => 'I', "\xE1\xBB\x8B" /* ị */ => 'i', |
|
244
|
|
|
"\xE1\xBB\x8C" /* Ọ */ => 'O', "\xE1\xBB\x8D" /* ọ */ => 'o', |
|
245
|
|
|
"\xE1\xBB\x98" /* Ộ */ => 'O', "\xE1\xBB\x99" /* ộ */ => 'o', |
|
246
|
|
|
"\xE1\xBB\xA2" /* Ợ */ => 'O', "\xE1\xBB\xA3" /* ợ */ => 'o', |
|
247
|
|
|
"\xE1\xBB\xA4" /* Ụ */ => 'U', "\xE1\xBB\xA5" /* ụ */ => 'u', |
|
248
|
|
|
"\xE1\xBB\xB0" /* Ự */ => 'U', "\xE1\xBB\xB1" /* ự */ => 'u', |
|
249
|
|
|
"\xE1\xBB\xB4" /* Ỵ */ => 'Y', "\xE1\xBB\xB5" /* ỵ */ => 'y', |
|
250
|
|
|
]; |
|
251
|
|
|
} |
|
252
|
|
|
|
|
253
|
|
|
/** |
|
254
|
|
|
* Tests that "normalizer_normalize" exists and works |
|
255
|
|
|
* |
|
256
|
|
|
* @return bool |
|
257
|
|
|
*/ |
|
258
|
1 |
|
static public function hasNormalizerSupport() { |
|
259
|
1 |
|
static $ret = null; |
|
260
|
1 |
|
if (null === $ret) { |
|
261
|
1 |
|
$form_c = "\xC3\x85"; // 'LATIN CAPITAL LETTER A WITH RING ABOVE' (U+00C5) |
|
262
|
1 |
|
$form_d = "A\xCC\x8A"; // A followed by 'COMBINING RING ABOVE' (U+030A) |
|
263
|
1 |
|
$ret = (function_exists('normalizer_normalize') |
|
264
|
1 |
|
&& $form_c === normalizer_normalize($form_d)); |
|
265
|
|
|
} |
|
266
|
1 |
|
return $ret; |
|
267
|
|
|
} |
|
268
|
|
|
} |
|
269
|
|
|
|
|
270
|
|
|
|
Elgg /
Elgg
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