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<?php
/**
* cp1251 encoding functions
*
* takes a string of unicode entities and converts it to a cp1251 encoded string
* Unsupported characters are replaced with ?.
*
* @copyright 2004-2010 The SquirrelMail Project Team
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
* @version $Id: cp1251.php 13893 2010-01-25 02:47:41Z pdontthink $
* @package squirrelmail
* @subpackage encode
*/
/**
* Converts string to cp1251
* @param string $string text with numeric unicode entities
* @return string cp1251 encoded text
*/
function charset_encode_cp1251 ($string) {
// don't run encoding function, if there is no encoded characters
if (! preg_match("'&#[0-9]+;'",$string) ) return $string;
$string=preg_replace("/&#([0-9]+);/e","unicodetocp1251('\\1')",$string);
// $string=preg_replace("/&#[xX]([0-9A-F]+);/e","unicodetocp1251(hexdec('\\1'))",$string);
return $string;
}
/**
* Return cp1251 symbol when unicode character number is provided
*
* This function is used internally by charset_encode_cp1251
* function. It might be unavailable to other SquirrelMail functions.
* Don't use it or make sure, that functions/encode/cp1251.php is
* included.
*
* @param int $var decimal unicode value
* @return string cp1251 character
*/
function unicodetocp1251($var) {
$cp1251chars=array('160' => "\xA0",
'164' => "\xA4",
'166' => "\xA6",
'167' => "\xA7",
'169' => "\xA9",
'171' => "\xAB",
'172' => "\xAC",
'173' => "\xAD",
'174' => "\xAE",
'176' => "\xB0",
'177' => "\xB1",
'181' => "\xB5",
'182' => "\xB6",
'183' => "\xB7",
'187' => "\xBB",
'1025' => "\xA8",
'1026' => "\x80",
'1027' => "\x81",
'1028' => "\xAA",
'1029' => "\xBD",
'1030' => "\xB2",
'1031' => "\xAF",
'1032' => "\xA3",
'1033' => "\x8A",
'1034' => "\x8C",
'1035' => "\x8E",
'1036' => "\x8D",
'1038' => "\xA1",
'1039' => "\x8F",
'1040' => "\xC0",
'1041' => "\xC1",
'1042' => "\xC2",
'1043' => "\xC3",
'1044' => "\xC4",
'1045' => "\xC5",
'1046' => "\xC6",
'1047' => "\xC7",
'1048' => "\xC8",
'1049' => "\xC9",
'1050' => "\xCA",
'1051' => "\xCB",
'1052' => "\xCC",
'1053' => "\xCD",
'1054' => "\xCE",
'1055' => "\xCF",
'1056' => "\xD0",
'1057' => "\xD1",
'1058' => "\xD2",
'1059' => "\xD3",
'1060' => "\xD4",
'1061' => "\xD5",
'1062' => "\xD6",
'1063' => "\xD7",
'1064' => "\xD8",
'1065' => "\xD9",
'1066' => "\xDA",
'1067' => "\xDB",
'1068' => "\xDC",
'1069' => "\xDD",
'1070' => "\xDE",
'1071' => "\xDF",
'1072' => "\xE0",
'1073' => "\xE1",
'1074' => "\xE2",
'1075' => "\xE3",
'1076' => "\xE4",
'1077' => "\xE5",
'1078' => "\xE6",
'1079' => "\xE7",
'1080' => "\xE8",
'1081' => "\xE9",
'1082' => "\xEA",
'1083' => "\xEB",
'1084' => "\xEC",
'1085' => "\xED",
'1086' => "\xEE",
'1087' => "\xEF",
'1088' => "\xF0",
'1089' => "\xF1",
'1090' => "\xF2",
'1091' => "\xF3",
'1092' => "\xF4",
'1093' => "\xF5",
'1094' => "\xF6",
'1095' => "\xF7",
'1096' => "\xF8",
'1097' => "\xF9",
'1098' => "\xFA",
'1099' => "\xFB",
'1100' => "\xFC",
'1101' => "\xFD",
'1102' => "\xFE",
'1103' => "\xFF",
'1105' => "\xB8",
'1106' => "\x90",
'1107' => "\x83",
'1108' => "\xBA",
'1109' => "\xBE",
'1110' => "\xB3",
'1111' => "\xBF",
'1112' => "\xBC",
'1113' => "\x9A",
'1114' => "\x9C",
'1115' => "\x9E",
'1116' => "\x9D",
'1118' => "\xA2",
'1119' => "\x9F",
'1168' => "\xA5",
'1169' => "\xB4",
'8211' => "\x96",
'8212' => "\x97",
'8216' => "\x91",
'8217' => "\x92",
'8218' => "\x82",
'8220' => "\x93",
'8221' => "\x94",
'8222' => "\x84",
'8224' => "\x86",
'8225' => "\x87",
'8226' => "\x95",
'8230' => "\x85",
'8240' => "\x89",
'8249' => "\x8B",
'8250' => "\x9B",
'8364' => "\x88",
'8470' => "\xB9",
'8482' => "\x99");
if (array_key_exists($var,$cp1251chars)) {
$ret=$cp1251chars[$var];
} else {
$ret='?';
}
return $ret;
}
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