squirrelmail/functions/decode/cp866.php

<?php
/**
 * decode/cp866.php
 * $Id$
 *
 * Copyright (c) 2003-2004 The SquirrelMail Project Team
 * Licensed under the GNU GPL. For full terms see the file COPYING.
 *
 * This file contains cp866 decoding function that is needed to read
 * cp866 encoded mails in non-cp866 locale.
 * 
 * Original data taken from:
 *  ftp://ftp.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/

    Name:     cp866_DOSCyrillicRussian to Unicode table
    Unicode version: 2.0
    Table version: 2.00
    Table format:  Format A
    Date:          04/24/96
    Authors:       Lori Brownell <loribr@microsoft.com>
                   K.D. Chang    <a-kchang@microsoft.com>
    The entries are in cp866_DOSCyrillicRussian order
 * @package squirrelmail
 * @subpackage decode
*/

/**
 * Decode a cp866-encoded string
 * @param string $string Encoded string
 * @return string $string Decoded string
 */
function charset_decode_cp866 ($string) {
    global $default_charset;

    if (strtolower($default_charset) == 'ibm866')
        return $string;

    /* Only do the slow convert if there are 8-bit characters */
    /* avoid using 0xA0 (\240) in ereg ranges. RH73 does not like that */
    if (! ereg("[\200-\237]", $string) and ! ereg("[\241-\377]", $string) )
        return $string;

    $cp866 = array(
	"\x80" => '&#1040;',
	"\x81" => '&#1041;',
	"\x82" => '&#1042;',
	"\x83" => '&#1043;',
	"\x84" => '&#1044;',
	"\x85" => '&#1045;',
	"\x86" => '&#1046;',
	"\x87" => '&#1047;',
	"\x88" => '&#1048;',
	"\x89" => '&#1049;',
	"\x8a" => '&#1050;',
	"\x8b" => '&#1051;',
	"\x8c" => '&#1052;',
	"\x8d" => '&#1053;',
	"\x8e" => '&#1054;',
	"\x8f" => '&#1055;',
	"\x90" => '&#1056;',
	"\x91" => '&#1057;',
	"\x92" => '&#1058;',
	"\x93" => '&#1059;',
	"\x94" => '&#1060;',
	"\x95" => '&#1061;',
	"\x96" => '&#1062;',
	"\x97" => '&#1063;',
	"\x98" => '&#1064;',
	"\x99" => '&#1065;',
	"\x9a" => '&#1066;',
	"\x9b" => '&#1067;',
	"\x9c" => '&#1068;',
	"\x9d" => '&#1069;',
	"\x9e" => '&#1070;',
	"\x9f" => '&#1071;',
	"\xa0" => '&#1072;',
	"\xa1" => '&#1073;',
	"\xa2" => '&#1074;',
	"\xa3" => '&#1075;',
	"\xa4" => '&#1076;',
	"\xa5" => '&#1077;',
	"\xa6" => '&#1078;',
	"\xa7" => '&#1079;',
	"\xa8" => '&#1080;',
	"\xa9" => '&#1081;',
	"\xaa" => '&#1082;',
	"\xab" => '&#1083;',
	"\xac" => '&#1084;',
	"\xad" => '&#1085;',
	"\xae" => '&#1086;',
	"\xaf" => '&#1087;',
	"\xb0" => '&#9617;',
	"\xb1" => '&#9618;',
	"\xb2" => '&#9619;',
	"\xb3" => '&#9474;',
	"\xb4" => '&#9508;',
	"\xb5" => '&#9569;',
	"\xb6" => '&#9570;',
	"\xb7" => '&#9558;',
	"\xb8" => '&#9557;',
	"\xb9" => '&#9571;',
	"\xba" => '&#9553;',
	"\xbb" => '&#9559;',
	"\xbc" => '&#9565;',
	"\xbd" => '&#9564;',
	"\xbe" => '&#9563;',
	"\xbf" => '&#9488;',
	"\xc0" => '&#9492;',
	"\xc1" => '&#9524;',
	"\xc2" => '&#9516;',
	"\xc3" => '&#9500;',
	"\xc4" => '&#9472;',
	"\xc5" => '&#9532;',
	"\xc6" => '&#9566;',
	"\xc7" => '&#9567;',
	"\xc8" => '&#9562;',
	"\xc9" => '&#9556;',
	"\xca" => '&#9577;',
	"\xcb" => '&#9574;',
	"\xcc" => '&#9568;',
	"\xcd" => '&#9552;',
	"\xce" => '&#9580;',
	"\xcf" => '&#9575;',
	"\xd0" => '&#9576;',
	"\xd1" => '&#9572;',
	"\xd2" => '&#9573;',
	"\xd3" => '&#9561;',
	"\xd4" => '&#9560;',
	"\xd5" => '&#9554;',
	"\xd6" => '&#9555;',
	"\xd7" => '&#9579;',
	"\xd8" => '&#9578;',
	"\xd9" => '&#9496;',
	"\xda" => '&#9484;',
	"\xdb" => '&#9608;',
	"\xdc" => '&#9604;',
	"\xdd" => '&#9612;',
	"\xde" => '&#9616;',
	"\xdf" => '&#9600;',
	"\xe0" => '&#1088;',
	"\xe1" => '&#1089;',
	"\xe2" => '&#1090;',
	"\xe3" => '&#1091;',
	"\xe4" => '&#1092;',
	"\xe5" => '&#1093;',
	"\xe6" => '&#1094;',
	"\xe7" => '&#1095;',
	"\xe8" => '&#1096;',
	"\xe9" => '&#1097;',
	"\xea" => '&#1098;',
	"\xeb" => '&#1099;',
	"\xec" => '&#1100;',
	"\xed" => '&#1101;',
	"\xee" => '&#1102;',
	"\xef" => '&#1103;',
	"\xf0" => '&#1025;',
	"\xf1" => '&#1105;',
	"\xf2" => '&#1028;',
	"\xf3" => '&#1108;',
	"\xf4" => '&#1031;',
	"\xf5" => '&#1111;',
	"\xf6" => '&#1038;',
	"\xf7" => '&#1118;',
	"\xf8" => '&#176;',
	"\xf9" => '&#8729;',
	"\xfa" => '&#183;',
	"\xfb" => '&#8730;',
	"\xfc" => '&#8470;',
	"\xfd" => '&#164;',
	"\xfe" => '&#9632;',
	"\xff" => '&#160;'
    );

    $string = str_replace(array_keys($cp866), array_values($cp866), $string);

    return $string;
}