178 lines
6.4 KiB
PHP
178 lines
6.4 KiB
PHP
<?php
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/**
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* cp1251 encoding functions
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*
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* takes a string of unicode entities and converts it to a cp1251 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 cp1251
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* @param string $string text with numeric unicode entities
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* @return string cp1251 encoded text
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*/
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function charset_encode_cp1251 ($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]+);/", 'unicodetocp1251', $string);
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return $string;
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}
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/**
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* Return cp1251 symbol when unicode character number is provided
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*
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* This function is used internally by charset_encode_cp1251
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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/cp1251.php is
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* included.
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*
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* @param array $matches array with first element a decimal unicode value
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* @return string cp1251 character
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*/
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function unicodetocp1251($matches) {
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$var = $matches[1];
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$cp1251chars=array('160' => "\xA0",
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'164' => "\xA4",
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'166' => "\xA6",
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'167' => "\xA7",
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'169' => "\xA9",
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'171' => "\xAB",
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'172' => "\xAC",
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'173' => "\xAD",
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'174' => "\xAE",
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'176' => "\xB0",
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'177' => "\xB1",
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'181' => "\xB5",
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'182' => "\xB6",
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'183' => "\xB7",
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'187' => "\xBB",
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'1025' => "\xA8",
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'1026' => "\x80",
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'1027' => "\x81",
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'1028' => "\xAA",
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'1029' => "\xBD",
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'1030' => "\xB2",
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'1031' => "\xAF",
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'1032' => "\xA3",
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'1033' => "\x8A",
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'1034' => "\x8C",
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'1035' => "\x8E",
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'1036' => "\x8D",
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'1038' => "\xA1",
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'1039' => "\x8F",
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'1040' => "\xC0",
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'1041' => "\xC1",
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'1042' => "\xC2",
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'1043' => "\xC3",
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'1044' => "\xC4",
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'1045' => "\xC5",
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'1046' => "\xC6",
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'1047' => "\xC7",
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'1048' => "\xC8",
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'1049' => "\xC9",
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'1050' => "\xCA",
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'1051' => "\xCB",
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'1052' => "\xCC",
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'1053' => "\xCD",
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'1054' => "\xCE",
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'1055' => "\xCF",
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'1056' => "\xD0",
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'1057' => "\xD1",
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'1058' => "\xD2",
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'1059' => "\xD3",
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'1060' => "\xD4",
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'1061' => "\xD5",
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'1062' => "\xD6",
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'1063' => "\xD7",
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'1064' => "\xD8",
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'1065' => "\xD9",
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'1066' => "\xDA",
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'1067' => "\xDB",
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'1068' => "\xDC",
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'1069' => "\xDD",
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'1070' => "\xDE",
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'1071' => "\xDF",
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'1072' => "\xE0",
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'1073' => "\xE1",
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'1074' => "\xE2",
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'1075' => "\xE3",
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'1076' => "\xE4",
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'1077' => "\xE5",
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'1078' => "\xE6",
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'1079' => "\xE7",
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'1080' => "\xE8",
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'1081' => "\xE9",
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'1082' => "\xEA",
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'1083' => "\xEB",
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'1084' => "\xEC",
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'1085' => "\xED",
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'1086' => "\xEE",
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'1087' => "\xEF",
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'1088' => "\xF0",
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'1089' => "\xF1",
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'1090' => "\xF2",
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'1091' => "\xF3",
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'1092' => "\xF4",
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'1093' => "\xF5",
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'1094' => "\xF6",
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'1095' => "\xF7",
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'1096' => "\xF8",
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'1097' => "\xF9",
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'1098' => "\xFA",
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'1099' => "\xFB",
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'1100' => "\xFC",
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'1101' => "\xFD",
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'1102' => "\xFE",
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'1103' => "\xFF",
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'1105' => "\xB8",
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'1106' => "\x90",
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'1107' => "\x83",
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'1108' => "\xBA",
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'1109' => "\xBE",
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'1110' => "\xB3",
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'1111' => "\xBF",
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'1112' => "\xBC",
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'1113' => "\x9A",
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'1114' => "\x9C",
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'1115' => "\x9E",
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'1116' => "\x9D",
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'1118' => "\xA2",
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'1119' => "\x9F",
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'1168' => "\xA5",
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'1169' => "\xB4",
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'8211' => "\x96",
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'8212' => "\x97",
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'8216' => "\x91",
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'8217' => "\x92",
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'8218' => "\x82",
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'8220' => "\x93",
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'8221' => "\x94",
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'8222' => "\x84",
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'8224' => "\x86",
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'8225' => "\x87",
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'8226' => "\x95",
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'8230' => "\x85",
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'8240' => "\x89",
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'8249' => "\x8B",
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'8250' => "\x9B",
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'8364' => "\x88",
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'8470' => "\xB9",
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'8482' => "\x99");
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if (array_key_exists($var,$cp1251chars)) {
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$ret=$cp1251chars[$var];
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} else {
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$ret='?';
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}
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return $ret;
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}
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