179 lines
6.3 KiB
PHP
179 lines
6.3 KiB
PHP
<?php
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/**
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* koi8-u encoding functions
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*
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* takes a string of unicode entities and converts it to a koi8-u encoded string
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* Unsupported characters are replaced with ?.
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*
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* @copyright 2004-2013 The SquirrelMail Project Team
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* @license http://opensource.org/licenses/gpl-license.php GNU Public License
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* @version $Id$
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* @package squirrelmail
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* @subpackage encode
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*/
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/**
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* Converts string to koi8-u
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* @param string $string text with numeric unicode entities
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* @return string koi8-u encoded text
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*/
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function charset_encode_koi8_u ($string) {
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// don't run encoding function, if there is no encoded characters
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if (! preg_match("'&#[0-9]+;'",$string) ) return $string;
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$string=preg_replace_callback("/&#([0-9]+);/",'unicodetokoi8u',$string);
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return $string;
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}
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/**
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* Return koi8-u symbol when unicode character number is provided
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*
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* This function is used internally by charset_encode_koi8_u
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* function. It might be unavailable to other SquirrelMail functions.
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* Don't use it or make sure, that functions/encode/koi8_u.php is
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* included.
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*
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* @param array $matches array with first element a decimal unicode value
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* @return string koi8-u character
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*/
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function unicodetokoi8u($matches) {
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$var = $matches[1];
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$koi8uchars=array('160' => "\x9A",
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'169' => "\xBF",
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'176' => "\x9C",
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'178' => "\x9D",
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'183' => "\x9E",
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'247' => "\x9F",
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'1025' => "\xB3",
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'1028' => "\xB4",
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'1030' => "\xB6",
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'1031' => "\xB7",
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'1040' => "\xE1",
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'1041' => "\xE2",
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'1042' => "\xF7",
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'1043' => "\xE7",
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'1044' => "\xE4",
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'1045' => "\xE5",
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'1046' => "\xF6",
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'1047' => "\xFA",
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'1048' => "\xE9",
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'1049' => "\xEA",
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'1050' => "\xEB",
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'1051' => "\xEC",
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'1052' => "\xED",
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'1053' => "\xEE",
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'1054' => "\xEF",
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'1055' => "\xF0",
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'1056' => "\xF2",
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'1057' => "\xF3",
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'1058' => "\xF4",
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'1059' => "\xF5",
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'1060' => "\xE6",
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'1061' => "\xE8",
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'1062' => "\xE3",
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'1063' => "\xFE",
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'1064' => "\xFB",
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'1065' => "\xFD",
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'1066' => "\xFF",
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'1067' => "\xF9",
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'1068' => "\xF8",
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'1069' => "\xFC",
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'1070' => "\xE0",
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'1071' => "\xF1",
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'1072' => "\xC1",
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'1073' => "\xC2",
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'1074' => "\xD7",
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'1075' => "\xC7",
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'1076' => "\xC4",
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'1077' => "\xC5",
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'1078' => "\xD6",
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'1079' => "\xDA",
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'1080' => "\xC9",
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'1081' => "\xCA",
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'1082' => "\xCB",
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'1083' => "\xCC",
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'1084' => "\xCD",
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'1085' => "\xCE",
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'1086' => "\xCF",
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'1087' => "\xD0",
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'1088' => "\xD2",
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'1089' => "\xD3",
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'1090' => "\xD4",
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'1091' => "\xD5",
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'1092' => "\xC6",
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'1093' => "\xC8",
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'1094' => "\xC3",
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'1095' => "\xDE",
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'1096' => "\xDB",
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'1097' => "\xDD",
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'1098' => "\xDF",
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'1099' => "\xD9",
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'1100' => "\xD8",
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'1101' => "\xDC",
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'1102' => "\xC0",
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'1103' => "\xD1",
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'1105' => "\xA3",
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'1108' => "\xA4",
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'1110' => "\xA6",
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'1111' => "\xA7",
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'1168' => "\xBD",
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'1169' => "\xAD",
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'8729' => "\x95",
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'8730' => "\x96",
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'8776' => "\x97",
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'8804' => "\x98",
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'8805' => "\x99",
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'8992' => "\x93",
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'8993' => "\x9B",
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'9472' => "\x80",
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'9474' => "\x81",
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'9484' => "\x82",
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'9488' => "\x83",
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'9492' => "\x84",
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'9496' => "\x85",
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'9500' => "\x86",
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'9508' => "\x87",
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'9516' => "\x88",
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'9524' => "\x89",
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'9532' => "\x8A",
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'9552' => "\xA0",
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'9553' => "\xA1",
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'9554' => "\xA2",
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'9556' => "\xA5",
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'9559' => "\xA8",
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'9560' => "\xA9",
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'9561' => "\xAA",
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'9562' => "\xAB",
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'9563' => "\xAC",
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'9565' => "\xAE",
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'9566' => "\xAF",
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'9567' => "\xB0",
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'9568' => "\xB1",
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'9569' => "\xB2",
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'9571' => "\xB5",
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'9574' => "\xB8",
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'9575' => "\xB9",
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'9576' => "\xBA",
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'9577' => "\xBB",
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'9578' => "\xBC",
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'9580' => "\xBE",
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'9600' => "\x8B",
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'9604' => "\x8C",
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'9608' => "\x8D",
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'9612' => "\x8E",
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'9616' => "\x8F",
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'9617' => "\x90",
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'9618' => "\x91",
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'9619' => "\x92",
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'9632' => "\x94");
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if (array_key_exists($var,$koi8uchars)) {
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$ret=$koi8uchars[$var];
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} else {
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$ret='?';
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}
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return $ret;
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}
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