[wp-trac] [WordPress Trac] #44906: Include greek accent characters on "remove_accents" function

WordPress Trac noreply at wordpress.org
Thu Sep 6 19:57:33 UTC 2018


#44906: Include greek accent characters on "remove_accents" function
-------------------------+------------------------------
 Reporter:  papazetis    |       Owner:  (none)
     Type:  enhancement  |      Status:  new
 Priority:  normal       |   Milestone:  Awaiting Review
Component:  Formatting   |     Version:  4.9.8
 Severity:  normal       |  Resolution:
 Keywords:               |     Focuses:
-------------------------+------------------------------

Comment (by papazetis):

 Wrong character.
 Just replace:
 {{{#!php
 $chars[ 'έ' ] = 'α';
 }}}
 with
 {{{#!php
 $chars[ 'έ' ] = 'ε';
 }}}



 Replying to [ticket:44906 papazetis]:
 > Hi,
 >
 > I extended the "remove_accents" function to support greek accents.
 > If you wish you can add it in core.
 >
 > I have just added greek characters after:
 > {{{#!php
 > elseif ( 'el' == $locale ) {
 > }}}
 >
 >
 > Thanks
 >
 > {{{#!php
 > <?php
 > function remove_accents( $string ) {
 >
 >       if ( !preg_match('/[\x80-\xff]/', $string) )
 >         return $string;
 >
 >     if (seems_utf8($string)) {
 >         $chars = array(
 >         // Decompositions for Latin-1 Supplement
 >         'ª' => 'a', 'º' => 'o',
 >         'À' => 'A', 'Á' => 'A',
 >         'Â' => 'A', 'Ã' => 'A',
 >         'Ä' => 'A', 'Å' => 'A',
 >         'Æ' => 'AE','Ç' => 'C',
 >         'È' => 'E', 'É' => 'E',
 >         'Ê' => 'E', 'Ë' => 'E',
 >         'Ì' => 'I', 'Í' => 'I',
 >         'Î' => 'I', 'Ï' => 'I',
 >         'Ð' => 'D', 'Ñ' => 'N',
 >         'Ò' => 'O', 'Ó' => 'O',
 >         'Ô' => 'O', 'Õ' => 'O',
 >         'Ö' => 'O', 'Ù' => 'U',
 >         'Ú' => 'U', 'Û' => 'U',
 >         'Ü' => 'U', 'Ý' => 'Y',
 >         'Þ' => 'TH','ß' => 's',
 >         'à' => 'a', 'á' => 'a',
 >         'â' => 'a', 'ã' => 'a',
 >         'ä' => 'a', 'å' => 'a',
 >         'æ' => 'ae','ç' => 'c',
 >         'è' => 'e', 'é' => 'e',
 >         'ê' => 'e', 'ë' => 'e',
 >         'ì' => 'i', 'í' => 'i',
 >         'î' => 'i', 'ï' => 'i',
 >         'ð' => 'd', 'ñ' => 'n',
 >         'ò' => 'o', 'ó' => 'o',
 >         'ô' => 'o', 'õ' => 'o',
 >         'ö' => 'o', 'ø' => 'o',
 >         'ù' => 'u', 'ú' => 'u',
 >         'û' => 'u', 'ü' => 'u',
 >         'ý' => 'y', 'þ' => 'th',
 >         'ÿ' => 'y', 'Ø' => 'O',
 >         // Decompositions for Latin Extended-A
 >         'Ā' => 'A', 'ā' => 'a',
 >         'Ă' => 'A', 'ă' => 'a',
 >         'Ą' => 'A', 'ą' => 'a',
 >         'Ć' => 'C', 'ć' => 'c',
 >         'Ĉ' => 'C', 'ĉ' => 'c',
 >         'Ċ' => 'C', 'ċ' => 'c',
 >         'Č' => 'C', 'č' => 'c',
 >         'Ď' => 'D', 'ď' => 'd',
 >         'Đ' => 'D', 'đ' => 'd',
 >         'Ē' => 'E', 'ē' => 'e',
 >         'Ĕ' => 'E', 'ĕ' => 'e',
 >         'Ė' => 'E', 'ė' => 'e',
 >         'Ę' => 'E', 'ę' => 'e',
 >         'Ě' => 'E', 'ě' => 'e',
 >         'Ĝ' => 'G', 'ĝ' => 'g',
 >         'Ğ' => 'G', 'ğ' => 'g',
 >         'Ġ' => 'G', 'ġ' => 'g',
 >         'Ģ' => 'G', 'ģ' => 'g',
 >         'Ĥ' => 'H', 'ĥ' => 'h',
 >         'Ħ' => 'H', 'ħ' => 'h',
 >         'Ĩ' => 'I', 'ĩ' => 'i',
 >         'Ī' => 'I', 'ī' => 'i',
 >         'Ĭ' => 'I', 'ĭ' => 'i',
 >         'Į' => 'I', 'į' => 'i',
 >         'İ' => 'I', 'ı' => 'i',
 >         'IJ' => 'IJ','ij' => 'ij',
 >         'Ĵ' => 'J', 'ĵ' => 'j',
 >         'Ķ' => 'K', 'ķ' => 'k',
 >         'ĸ' => 'k', 'Ĺ' => 'L',
 >         'ĺ' => 'l', 'Ļ' => 'L',
 >         'ļ' => 'l', 'Ľ' => 'L',
 >         'ľ' => 'l', 'Ŀ' => 'L',
 >         'ŀ' => 'l', 'Ł' => 'L',
 >         'ł' => 'l', 'Ń' => 'N',
 >         'ń' => 'n', 'Ņ' => 'N',
 >         'ņ' => 'n', 'Ň' => 'N',
 >         'ň' => 'n', 'ʼn' => 'n',
 >         'Ŋ' => 'N', 'ŋ' => 'n',
 >         'Ō' => 'O', 'ō' => 'o',
 >         'Ŏ' => 'O', 'ŏ' => 'o',
 >         'Ő' => 'O', 'ő' => 'o',
 >         'Œ' => 'OE','œ' => 'oe',
 >         'Ŕ' => 'R','ŕ' => 'r',
 >         'Ŗ' => 'R','ŗ' => 'r',
 >         'Ř' => 'R','ř' => 'r',
 >         'Ś' => 'S','ś' => 's',
 >         'Ŝ' => 'S','ŝ' => 's',
 >         'Ş' => 'S','ş' => 's',
 >         'Š' => 'S', 'š' => 's',
 >         'Ţ' => 'T', 'ţ' => 't',
 >         'Ť' => 'T', 'ť' => 't',
 >         'Ŧ' => 'T', 'ŧ' => 't',
 >         'Ũ' => 'U', 'ũ' => 'u',
 >         'Ū' => 'U', 'ū' => 'u',
 >         'Ŭ' => 'U', 'ŭ' => 'u',
 >         'Ů' => 'U', 'ů' => 'u',
 >         'Ű' => 'U', 'ű' => 'u',
 >         'Ų' => 'U', 'ų' => 'u',
 >         'Ŵ' => 'W', 'ŵ' => 'w',
 >         'Ŷ' => 'Y', 'ŷ' => 'y',
 >         'Ÿ' => 'Y', 'Ź' => 'Z',
 >         'ź' => 'z', 'Ż' => 'Z',
 >         'ż' => 'z', 'Ž' => 'Z',
 >         'ž' => 'z', 'ſ' => 's',
 >         // Decompositions for Latin Extended-B
 >         'Ș' => 'S', 'ș' => 's',
 >         'Ț' => 'T', 'ț' => 't',
 >         // Euro Sign
 >         '€' => 'E',
 >         // GBP (Pound) Sign
 >         '£' => '',
 >         // Vowels with diacritic (Vietnamese)
 >         // unmarked
 >         'Ơ' => 'O', 'ơ' => 'o',
 >         'Ư' => 'U', 'ư' => 'u',
 >         // grave accent
 >         'Ầ' => 'A', 'ầ' => 'a',
 >         'Ằ' => 'A', 'ằ' => 'a',
 >         'Ề' => 'E', 'ề' => 'e',
 >         'Ồ' => 'O', 'ồ' => 'o',
 >         'Ờ' => 'O', 'ờ' => 'o',
 >         'Ừ' => 'U', 'ừ' => 'u',
 >         'Ỳ' => 'Y', 'ỳ' => 'y',
 >         // hook
 >         'Ả' => 'A', 'ả' => 'a',
 >         'Ẩ' => 'A', 'ẩ' => 'a',
 >         'Ẳ' => 'A', 'ẳ' => 'a',
 >         'Ẻ' => 'E', 'ẻ' => 'e',
 >         'Ể' => 'E', 'ể' => 'e',
 >         'Ỉ' => 'I', 'ỉ' => 'i',
 >         'Ỏ' => 'O', 'ỏ' => 'o',
 >         'Ổ' => 'O', 'ổ' => 'o',
 >         'Ở' => 'O', 'ở' => 'o',
 >         'Ủ' => 'U', 'ủ' => 'u',
 >         'Ử' => 'U', 'ử' => 'u',
 >         'Ỷ' => 'Y', 'ỷ' => 'y',
 >         // tilde
 >         'Ẫ' => 'A', 'ẫ' => 'a',
 >         'Ẵ' => 'A', 'ẵ' => 'a',
 >         'Ẽ' => 'E', 'ẽ' => 'e',
 >         'Ễ' => 'E', 'ễ' => 'e',
 >         'Ỗ' => 'O', 'ỗ' => 'o',
 >         'Ỡ' => 'O', 'ỡ' => 'o',
 >         'Ữ' => 'U', 'ữ' => 'u',
 >         'Ỹ' => 'Y', 'ỹ' => 'y',
 >         // acute accent
 >         'Ấ' => 'A', 'ấ' => 'a',
 >         'Ắ' => 'A', 'ắ' => 'a',
 >         'Ế' => 'E', 'ế' => 'e',
 >         'Ố' => 'O', 'ố' => 'o',
 >         'Ớ' => 'O', 'ớ' => 'o',
 >         'Ứ' => 'U', 'ứ' => 'u',
 >         // dot below
 >         'Ạ' => 'A', 'ạ' => 'a',
 >         'Ậ' => 'A', 'ậ' => 'a',
 >         'Ặ' => 'A', 'ặ' => 'a',
 >         'Ẹ' => 'E', 'ẹ' => 'e',
 >         'Ệ' => 'E', 'ệ' => 'e',
 >         'Ị' => 'I', 'ị' => 'i',
 >         'Ọ' => 'O', 'ọ' => 'o',
 >         'Ộ' => 'O', 'ộ' => 'o',
 >         'Ợ' => 'O', 'ợ' => 'o',
 >         'Ụ' => 'U', 'ụ' => 'u',
 >         'Ự' => 'U', 'ự' => 'u',
 >         'Ỵ' => 'Y', 'ỵ' => 'y',
 >         // Vowels with diacritic (Chinese, Hanyu Pinyin)
 >         'ɑ' => 'a',
 >         // macron
 >         'Ǖ' => 'U', 'ǖ' => 'u',
 >         // acute accent
 >         'Ǘ' => 'U', 'ǘ' => 'u',
 >         // caron
 >         'Ǎ' => 'A', 'ǎ' => 'a',
 >         'Ǐ' => 'I', 'ǐ' => 'i',
 >         'Ǒ' => 'O', 'ǒ' => 'o',
 >         'Ǔ' => 'U', 'ǔ' => 'u',
 >         'Ǚ' => 'U', 'ǚ' => 'u',
 >         // grave accent
 >         'Ǜ' => 'U', 'ǜ' => 'u',
 >         );
 >
 >         // Used for locale-specific rules
 >         $locale = get_locale();
 >
 >         if ( 'de_DE' == $locale || 'de_DE_formal' == $locale || 'de_CH'
 == $locale || 'de_CH_informal' == $locale ) {
 >             $chars[ 'Ä' ] = 'Ae';
 >             $chars[ 'ä' ] = 'ae';
 >             $chars[ 'Ö' ] = 'Oe';
 >             $chars[ 'ö' ] = 'oe';
 >             $chars[ 'Ü' ] = 'Ue';
 >             $chars[ 'ü' ] = 'ue';
 >             $chars[ 'ß' ] = 'ss';
 >         } elseif ( 'da_DK' === $locale ) {
 >             $chars[ 'Æ' ] = 'Ae';
 >             $chars[ 'æ' ] = 'ae';
 >             $chars[ 'Ø' ] = 'Oe';
 >             $chars[ 'ø' ] = 'oe';
 >             $chars[ 'Å' ] = 'Aa';
 >             $chars[ 'å' ] = 'aa';
 >         } elseif ( 'ca' === $locale ) {
 >             $chars[ 'l·l' ] = 'll';
 >         } elseif ( 'sr_RS' === $locale || 'bs_BA' === $locale ) {
 >             $chars[ 'Đ' ] = 'DJ';
 >             $chars[ 'đ' ] = 'dj';
 >         } elseif ( 'el' == $locale ) {
 >             $chars[ 'Ά' ] = 'Α';
 >           $chars[ 'ά' ] = 'α';
 >           $chars[ 'Έ' ] = 'Ε';
 >           $chars[ 'έ' ] = 'α';
 >           $chars[ 'Ί' ] = 'Ι';
 >           $chars[ 'ί' ] = 'ι';
 >           $chars[ 'ΐ' ] = 'ϊ';
 >           $chars[ 'Ύ' ] = 'Υ';
 >           $chars[ 'ύ' ] = 'υ';
 >           $chars[ 'ΰ' ] = 'ϋ';
 >           $chars[ 'Ή' ] = 'Η';
 >           $chars[ 'ή' ] = 'η';
 >           $chars[ 'Ό' ] = 'Ο';
 >           $chars[ 'ό' ] = 'ο';
 >           $chars[ 'Ώ' ] = 'Ω';
 >           $chars[ 'ώ' ] = 'ω';
 >       }
 >
 >         $string = strtr($string, $chars);
 >     } else {
 >         $chars = array();
 >         // Assume ISO-8859-1 if not UTF-8
 >         $chars['in'] = "\x80\x83\x8a\x8e\x9a\x9e"
 >             ."\x9f\xa2\xa5\xb5\xc0\xc1\xc2"
 >             ."\xc3\xc4\xc5\xc7\xc8\xc9\xca"
 >             ."\xcb\xcc\xcd\xce\xcf\xd1\xd2"
 >             ."\xd3\xd4\xd5\xd6\xd8\xd9\xda"
 >             ."\xdb\xdc\xdd\xe0\xe1\xe2\xe3"
 >             ."\xe4\xe5\xe7\xe8\xe9\xea\xeb"
 >             ."\xec\xed\xee\xef\xf1\xf2\xf3"
 >             ."\xf4\xf5\xf6\xf8\xf9\xfa\xfb"
 >             ."\xfc\xfd\xff";
 >
 >         $chars['out'] =
 "EfSZszYcYuAAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuyy";
 >
 >         $string = strtr($string, $chars['in'], $chars['out']);
 >         $double_chars = array();
 >         $double_chars['in'] = array("\x8c", "\x9c", "\xc6", "\xd0",
 "\xde", "\xdf", "\xe6", "\xf0", "\xfe");
 >         $double_chars['out'] = array('OE', 'oe', 'AE', 'DH', 'TH', 'ss',
 'ae', 'dh', 'th');
 >         $string = str_replace($double_chars['in'], $double_chars['out'],
 $string);
 >     }
 >
 >     return $string;
 >
 > }
 > }}}

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/44906#comment:1>
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