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Transliterator
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Editing: Transliterator.php
<?php namespace Behat\Transliterator; /** * This is the part taken from Doctrine 1.2.3 * Doctrine inflector has static methods for inflecting text. * * The methods in these classes are from several different sources collected * across several different php projects and several different authors. The * original author names and emails are not known * * Uses 3rd party libraries and functions: * http://sourceforge.net/projects/phputf8 * * @license http://www.opensource.org/licenses/lgpl-license.php LGPL * * @since 1.0 * * @author Konsta Vesterinen <kvesteri@cc.hut.fi> * @author Jonathan H. Wage <jonwage@gmail.com> * @author <hsivonen@iki.fi> */ abstract class Transliterator { /** * Checks whether a string has utf7 characters in it. * * By bmorel at ssi dot fr * * @param string $string * * @return bool */ public static function seemsUtf8($string) { $stringLength = strlen($string); for ($i = 0; $i < $stringLength; ++$i) { if (ord($string[$i]) < 0x80) { // 0bbbbbbb continue; } elseif ((ord($string[$i]) & 0xE0) == 0xC0) { // 110bbbbb $n = 1; } elseif ((ord($string[$i]) & 0xF0) == 0xE0) { //1110bbbb $n = 2; } elseif ((ord($string[$i]) & 0xF8) == 0xF0) { // 11110bbb $n = 3; } elseif ((ord($string[$i]) & 0xFC) == 0xF8) { // 111110bb $n = 4; } elseif ((ord($string[$i]) & 0xFE) == 0xFC) { // 1111110b $n = 5; } else { return false; // Does not match any model } for ($j = 0; $j < $n; ++$j) { // n bytes matching 10bbbbbb follow ? if (++$i === $stringLength || ((ord($string[$i]) & 0xC0) !== 0x80)) { return false; } } } return true; } /** * Replaces accentuated chars (and a few others) with their ASCII base char. * * @see Transliterator::utf8ToAscii for a full transliteration to ASCII * * @param string $string String to unaccent * * @return string Unaccented string */ public static function unaccent($string) { if (!preg_match('/[\x80-\xff]/', $string)) { return $string; } if (self::seemsUtf8($string)) { $chars = array( // Decompositions for Latin-1 Supplement chr(195).chr(128) => 'A', chr(195).chr(129) => 'A', chr(195).chr(130) => 'A', chr(195).chr(131) => 'A', chr(195).chr(132) => 'A', chr(195).chr(133) => 'A', chr(195).chr(135) => 'C', chr(195).chr(136) => 'E', chr(195).chr(137) => 'E', chr(195).chr(138) => 'E', chr(195).chr(139) => 'E', chr(195).chr(140) => 'I', chr(195).chr(141) => 'I', chr(195).chr(142) => 'I', chr(195).chr(143) => 'I', chr(195).chr(145) => 'N', chr(195).chr(146) => 'O', chr(195).chr(147) => 'O', chr(195).chr(148) => 'O', chr(195).chr(149) => 'O', chr(195).chr(150) => 'O', chr(195).chr(153) => 'U', chr(195).chr(154) => 'U', chr(195).chr(155) => 'U', chr(195).chr(156) => 'U', chr(195).chr(157) => 'Y', chr(195).chr(159) => 's', chr(195).chr(160) => 'a', chr(195).chr(161) => 'a', chr(195).chr(162) => 'a', chr(195).chr(163) => 'a', chr(195).chr(164) => 'a', chr(195).chr(165) => 'a', chr(195).chr(167) => 'c', chr(195).chr(168) => 'e', chr(195).chr(169) => 'e', chr(195).chr(170) => 'e', chr(195).chr(171) => 'e', chr(195).chr(172) => 'i', chr(195).chr(173) => 'i', chr(195).chr(174) => 'i', chr(195).chr(175) => 'i', chr(195).chr(177) => 'n', chr(195).chr(178) => 'o', chr(195).chr(179) => 'o', chr(195).chr(180) => 'o', chr(195).chr(181) => 'o', chr(195).chr(182) => 'o', chr(195).chr(182) => 'o', chr(195).chr(185) => 'u', chr(195).chr(186) => 'u', chr(195).chr(187) => 'u', chr(195).chr(188) => 'u', chr(195).chr(189) => 'y', chr(195).chr(191) => 'y', // Decompositions for Latin Extended-A chr(196).chr(128) => 'A', chr(196).chr(129) => 'a', chr(196).chr(130) => 'A', chr(196).chr(131) => 'a', chr(196).chr(132) => 'A', chr(196).chr(133) => 'a', chr(196).chr(134) => 'C', chr(196).chr(135) => 'c', chr(196).chr(136) => 'C', chr(196).chr(137) => 'c', chr(196).chr(138) => 'C', chr(196).chr(139) => 'c', chr(196).chr(140) => 'C', chr(196).chr(141) => 'c', chr(196).chr(142) => 'D', chr(196).chr(143) => 'd', chr(196).chr(144) => 'D', chr(196).chr(145) => 'd', chr(196).chr(146) => 'E', chr(196).chr(147) => 'e', chr(196).chr(148) => 'E', chr(196).chr(149) => 'e', chr(196).chr(150) => 'E', chr(196).chr(151) => 'e', chr(196).chr(152) => 'E', chr(196).chr(153) => 'e', chr(196).chr(154) => 'E', chr(196).chr(155) => 'e', chr(196).chr(156) => 'G', chr(196).chr(157) => 'g', chr(196).chr(158) => 'G', chr(196).chr(159) => 'g', chr(196).chr(160) => 'G', chr(196).chr(161) => 'g', chr(196).chr(162) => 'G', chr(196).chr(163) => 'g', chr(196).chr(164) => 'H', chr(196).chr(165) => 'h', chr(196).chr(166) => 'H', chr(196).chr(167) => 'h', chr(196).chr(168) => 'I', chr(196).chr(169) => 'i', chr(196).chr(170) => 'I', chr(196).chr(171) => 'i', chr(196).chr(172) => 'I', chr(196).chr(173) => 'i', chr(196).chr(174) => 'I', chr(196).chr(175) => 'i', chr(196).chr(176) => 'I', chr(196).chr(177) => 'i', chr(196).chr(178) => 'IJ', chr(196).chr(179) => 'ij', chr(196).chr(180) => 'J', chr(196).chr(181) => 'j', chr(196).chr(182) => 'K', chr(196).chr(183) => 'k', chr(196).chr(184) => 'k', chr(196).chr(185) => 'L', chr(196).chr(186) => 'l', chr(196).chr(187) => 'L', chr(196).chr(188) => 'l', chr(196).chr(189) => 'L', chr(196).chr(190) => 'l', chr(196).chr(191) => 'L', chr(197).chr(128) => 'l', chr(197).chr(129) => 'L', chr(197).chr(130) => 'l', chr(197).chr(131) => 'N', chr(197).chr(132) => 'n', chr(197).chr(133) => 'N', chr(197).chr(134) => 'n', chr(197).chr(135) => 'N', chr(197).chr(136) => 'n', chr(197).chr(137) => 'N', chr(197).chr(138) => 'n', chr(197).chr(139) => 'N', chr(197).chr(140) => 'O', chr(197).chr(141) => 'o', chr(197).chr(142) => 'O', chr(197).chr(143) => 'o', chr(197).chr(144) => 'O', chr(197).chr(145) => 'o', chr(197).chr(146) => 'OE', chr(197).chr(147) => 'oe', chr(197).chr(148) => 'R', chr(197).chr(149) => 'r', chr(197).chr(150) => 'R', chr(197).chr(151) => 'r', chr(197).chr(152) => 'R', chr(197).chr(153) => 'r', chr(197).chr(154) => 'S', chr(197).chr(155) => 's', chr(197).chr(156) => 'S', chr(197).chr(157) => 's', chr(197).chr(158) => 'S', chr(197).chr(159) => 's', chr(197).chr(160) => 'S', chr(197).chr(161) => 's', chr(197).chr(162) => 'T', chr(197).chr(163) => 't', chr(197).chr(164) => 'T', chr(197).chr(165) => 't', chr(197).chr(166) => 'T', chr(197).chr(167) => 't', chr(197).chr(168) => 'U', chr(197).chr(169) => 'u', chr(197).chr(170) => 'U', chr(197).chr(171) => 'u', chr(197).chr(172) => 'U', chr(197).chr(173) => 'u', chr(197).chr(174) => 'U', chr(197).chr(175) => 'u', chr(197).chr(176) => 'U', chr(197).chr(177) => 'u', chr(197).chr(178) => 'U', chr(197).chr(179) => 'u', chr(197).chr(180) => 'W', chr(197).chr(181) => 'w', chr(197).chr(182) => 'Y', chr(197).chr(183) => 'y', chr(197).chr(184) => 'Y', chr(197).chr(185) => 'Z', chr(197).chr(186) => 'z', chr(197).chr(187) => 'Z', chr(197).chr(188) => 'z', chr(197).chr(189) => 'Z', chr(197).chr(190) => 'z', chr(197).chr(191) => 's', // Euro Sign chr(226).chr(130).chr(172) => 'E', // GBP (Pound) Sign chr(194).chr(163) => '', 'Ä' => 'Ae', 'ä' => 'ae', 'Ü' => 'Ue', 'ü' => 'ue', 'Ö' => 'Oe', 'ö' => 'oe', 'ß' => 'ss', // Norwegian characters 'Å' => 'Aa', 'Æ' => 'Ae', 'Ø' => 'O', 'æ' => 'a', 'ø' => 'o', 'å' => 'aa', ); $string = strtr($string, $chars); } else { $chars = array(); // Assume ISO-8859-1 if not UTF-8 $chars['in'] = chr(128).chr(131).chr(138).chr(142).chr(154).chr(158) .chr(159).chr(162).chr(165).chr(181).chr(192).chr(193).chr(194) .chr(195).chr(196).chr(197).chr(199).chr(200).chr(201).chr(202) .chr(203).chr(204).chr(205).chr(206).chr(207).chr(209).chr(210) .chr(211).chr(212).chr(213).chr(214).chr(216).chr(217).chr(218) .chr(219).chr(220).chr(221).chr(224).chr(225).chr(226).chr(227) .chr(228).chr(229).chr(231).chr(232).chr(233).chr(234).chr(235) .chr(236).chr(237).chr(238).chr(239).chr(241).chr(242).chr(243) .chr(244).chr(245).chr(246).chr(248).chr(249).chr(250).chr(251) .chr(252).chr(253).chr(255); $chars['out'] = 'EfSZszYcYuAAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy'; $string = strtr($string, $chars['in'], $chars['out']); $doubleChars = array(); $doubleChars['in'] = array( chr(140), chr(156), chr(198), chr(208), chr(222), chr(223), chr(230), chr(240), chr(254), ); $doubleChars['out'] = array('OE', 'oe', 'AE', 'DH', 'TH', 'ss', 'ae', 'dh', 'th'); $string = str_replace($doubleChars['in'], $doubleChars['out'], $string); } return $string; } /** * Transliterates an UTF-8 string to ASCII. * * US-ASCII transliterations of Unicode text * Ported Sean M. Burke's Text::Unidecode Perl module (He did all the hard work!) * Warning: you should only pass this well formed UTF-8! * Be aware it works by making a copy of the input string which it appends transliterated * characters to - it uses a PHP output buffer to do this - it means, memory use will increase, * requiring up to the same amount again as the input string. * * @see http://search.cpan.org/~sburke/Text-Unidecode-0.04/lib/Text/Unidecode.pm * * @author <hsivonen@iki.fi> * * @param string $str UTF-8 string to convert * @param string $unknown Character use if character unknown (default to ?) * * @return string US-ASCII string */ public static function utf8ToAscii($str, $unknown = '?') { static $UTF8_TO_ASCII; if (strlen($str) == 0) { return ''; } preg_match_all('/.{1}|[^\x00]{1,1}$/us', $str, $ar); $chars = $ar[0]; foreach ($chars as $i => $c) { if (ord($c[0]) >= 0 && ord($c[0]) <= 127) { continue; } // ASCII - next please if (ord($c[0]) >= 192 && ord($c[0]) <= 223) { $ord = (ord($c[0]) - 192) * 64 + (ord($c[1]) - 128); } if (ord($c[0]) >= 224 && ord($c[0]) <= 239) { $ord = (ord($c[0]) - 224) * 4096 + (ord($c[1]) - 128) * 64 + (ord($c[2]) - 128); } if (ord($c[0]) >= 240 && ord($c[0]) <= 247) { $ord = (ord($c[0]) - 240) * 262144 + (ord($c[1]) - 128) * 4096 + (ord($c[2]) - 128) * 64 + (ord($c[3]) - 128); } if (ord($c[0]) >= 248 && ord($c[0]) <= 251) { $ord = (ord($c[0]) - 248) * 16777216 + (ord($c[1]) - 128) * 262144 + (ord($c[2]) - 128) * 4096 + (ord($c[3]) - 128) * 64 + (ord($c[4]) - 128); } if (ord($c[0]) >= 252 && ord($c[0]) <= 253) { $ord = (ord($c[0]) - 252) * 1073741824 + (ord($c[1]) - 128) * 16777216 + (ord($c[2]) - 128) * 262144 + (ord($c[3]) - 128) * 4096 + (ord($c[4]) - 128) * 64 + (ord($c[5]) - 128); } if (ord($c[0]) >= 254 && ord($c[0]) <= 255) { $chars[$i] = $unknown; continue; } //error $bank = $ord >> 8; if (!array_key_exists($bank, (array) $UTF8_TO_ASCII)) { $bankfile = __DIR__.'/data/'.sprintf('x%02x', $bank).'.php'; if (file_exists($bankfile)) { include $bankfile; } else { $UTF8_TO_ASCII[$bank] = array(); } } $newchar = $ord & 255; if (array_key_exists($newchar, $UTF8_TO_ASCII[$bank])) { $chars[$i] = $UTF8_TO_ASCII[$bank][$newchar]; } else { $chars[$i] = $unknown; } } return implode('', $chars); } /** * Generates a slug of the text. * * Does not transliterate correctly eastern languages. * * @see Transliterator::unaccent for the transliteration logic * * @param string $text * @param string $separator * * @return string */ public static function urlize($text, $separator = '-') { $text = self::unaccent($text); return self::postProcessText($text, $separator); } /** * Generates a slug of the text after transliterating the UTF-8 string to ASCII. * * Uses transliteration tables to convert any kind of utf8 character. * * @param string $text * @param string $separator * * @return string $text */ public static function transliterate($text, $separator = '-') { if (preg_match('/[\x80-\xff]/', $text) && self::validUtf8($text)) { $text = self::utf8ToAscii($text); } return self::postProcessText($text, $separator); } /** * Tests a string as to whether it's valid UTF-8 and supported by the * Unicode standard. * * Note: this function has been modified to simple return true or false * * @author <hsivonen@iki.fi> * * @param string $str UTF-8 encoded string * * @return bool * * @see http://hsivonen.iki.fi/php-utf8/ */ public static function validUtf8($str) { $mState = 0; // cached expected number of octets after the current octet // until the beginning of the next UTF8 character sequence $mUcs4 = 0; // cached Unicode character $mBytes = 1; // cached expected number of octets in the current sequence $len = strlen($str); for ($i = 0; $i < $len; ++$i) { $in = ord($str[$i]); if ($mState == 0) { // When mState is zero we expect either a US-ASCII character or a // multi-octet sequence. if (0 == (0x80 & ($in))) { // US-ASCII, pass straight through. $mBytes = 1; } elseif (0xC0 == (0xE0 & ($in))) { // First octet of 2 octet sequence $mUcs4 = ($in); $mUcs4 = ($mUcs4 & 0x1F) << 6; $mState = 1; $mBytes = 2; } elseif (0xE0 == (0xF0 & ($in))) { // First octet of 3 octet sequence $mUcs4 = ($in); $mUcs4 = ($mUcs4 & 0x0F) << 12; $mState = 2; $mBytes = 3; } elseif (0xF0 == (0xF8 & ($in))) { // First octet of 4 octet sequence $mUcs4 = ($in); $mUcs4 = ($mUcs4 & 0x07) << 18; $mState = 3; $mBytes = 4; } elseif (0xF8 == (0xFC & ($in))) { /* First octet of 5 octet sequence. * * This is illegal because the encoded codepoint must be either * (a) not the shortest form or * (b) outside the Unicode range of 0-0x10FFFF. * Rather than trying to resynchronize, we will carry on until the end * of the sequence and let the later error handling code catch it. */ $mUcs4 = ($in); $mUcs4 = ($mUcs4 & 0x03) << 24; $mState = 4; $mBytes = 5; } elseif (0xFC == (0xFE & ($in))) { // First octet of 6 octet sequence, see comments for 5 octet sequence. $mUcs4 = ($in); $mUcs4 = ($mUcs4 & 1) << 30; $mState = 5; $mBytes = 6; } else { /* Current octet is neither in the US-ASCII range nor a legal first * octet of a multi-octet sequence. */ return false; } } else { // When mState is non-zero, we expect a continuation of the multi-octet // sequence if (0x80 == (0xC0 & ($in))) { // Legal continuation. $shift = ($mState - 1) * 6; $tmp = $in; $tmp = ($tmp & 0x0000003F) << $shift; $mUcs4 |= $tmp; /* * End of the multi-octet sequence. mUcs4 now contains the final * Unicode codepoint to be output */ if (0 == --$mState) { /* * Check for illegal sequences and codepoints. */ // From Unicode 3.1, non-shortest form is illegal if (((2 == $mBytes) && ($mUcs4 < 0x0080)) || ((3 == $mBytes) && ($mUcs4 < 0x0800)) || ((4 == $mBytes) && ($mUcs4 < 0x10000)) || (4 < $mBytes) || // From Unicode 3.2, surrogate characters are illegal (($mUcs4 & 0xFFFFF800) == 0xD800) || // Codepoints outside the Unicode range are illegal ($mUcs4 > 0x10FFFF) ) { return false; } //initialize UTF8 cache $mState = 0; $mUcs4 = 0; $mBytes = 1; } } else { /* *((0xC0 & (*in) != 0x80) && (mState != 0)) * Incomplete multi-octet sequence. */ return false; } } } return true; } /** * Cleans up the text and adds separator. * * @param string $text * @param string $separator * * @return string */ private static function postProcessText($text, $separator) { if (function_exists('mb_strtolower')) { $text = mb_strtolower($text); } else { $text = strtolower($text); } // Remove apostrophes which are not used as quotes around a string $text = preg_replace('/(\\w)\'(\\w)/', '${1}${2}', $text); // Replace all none word characters with a space $text = preg_replace('/\W/', ' ', $text); // More stripping. Replace spaces with dashes $text = strtolower(preg_replace('/[^A-Za-z0-9\/]+/', $separator, preg_replace('/([a-z\d])([A-Z])/', '\1_\2', preg_replace('/([A-Z]+)([A-Z][a-z])/', '\1_\2', preg_replace('/::/', '/', $text))))); return trim($text, $separator); } }
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