functions/decode/koi8_r.php

   1 <?php
   2 /**
   3  * decode/koi8-r.php
   4  *
   5  * Copyright (c) 2003-2004 The SquirrelMail Project Team
   6  * Licensed under the GNU GPL. For full terms see the file COPYING.
   7  *
   8  * This file contains koi8-r decoding function that is needed to read
   9  * koi8-r encoded mails in non-koi8-r locale.
  10  *
  11  * Original data taken from:
  12  *  ftp://ftp.unicode.org/Public/MAPPINGS/VENDORS/MISC/KOI8-R.TXT
  13  *
  14  * Name:             KOI8-R (RFC1489) to Unicode
  15  * Unicode version:  3.0
  16  * Table version:    1.0
  17  * Table format:     Format A
  18  * Date:             18 August 1999
  19  * Authors:          Helmut Richter <richter@lrz.de>
  20  *
  21  * Copyright (c) 1991-1999 Unicode, Inc.  All Rights reserved.
  22  *
  23  * This file is provided as-is by Unicode, Inc. (The Unicode Consortium).
  24  * No claims are made as to fitness for any particular purpose.  No
  25  * warranties of any kind are expressed or implied.  The recipient
  26  * agrees to determine applicability of information provided.  If this
  27  * file has been provided on optical media by Unicode, Inc., the sole
  28  * remedy for any claim will be exchange of defective media within 90
  29  * days of receipt.
  30  *
  31  * Unicode, Inc. hereby grants the right to freely use the information
  32  * supplied in this file in the creation of products supporting the
  33  * Unicode Standard, and to make copies of this file in any form for
  34  * internal or external distribution as long as this notice remains
  35  * attached.
  36  *
  37  * @version $Id$
  38  * @package squirrelmail
  39  * @subpackage decode
  40  */
  41
  42 /**
  43  * Decode koi8r strings
  44  * @param string $string Encoded string
  45  * @return string Decoded string
  46  */
  47 function charset_decode_koi8_r ($string) {
  48     global $default_charset;
  49
  50     if (strtolower($default_charset) == 'koi8-r')
  51         return $string;
  52
  53     // don't do decoding when there are no 8bit symbols
  54     if (! sq_is8bit($string,'koi8-r'))
  55         return $string;
  56
  57     $koi8r = array(
  58         "\x80" => '&#9472;',
  59         "\x81" => '&#9474;',
  60         "\x82" => '&#9484;',
  61         "\x83" => '&#9488;',
  62         "\x84" => '&#9492;',
  63         "\x85" => '&#9496;',
  64         "\x86" => '&#9500;',
  65         "\x87" => '&#9508;',
  66         "\x88" => '&#9516;',
  67         "\x89" => '&#9524;',
  68         "\x8A" => '&#9532;',
  69         "\x8B" => '&#9600;',
  70         "\x8C" => '&#9604;',
  71         "\x8D" => '&#9608;',
  72         "\x8E" => '&#9612;',
  73         "\x8F" => '&#9616;',
  74         "\x90" => '&#9617;',
  75         "\x91" => '&#9618;',
  76         "\x92" => '&#9619;',
  77         "\x93" => '&#8992;',
  78         "\x94" => '&#9632;',
  79         "\x95" => '&#8729;',
  80         "\x96" => '&#8730;',
  81         "\x97" => '&#8776;',
  82         "\x98" => '&#8804;',
  83         "\x99" => '&#8805;',
  84         "\x9A" => '&#160;',
  85         "\x9B" => '&#8993;',
  86         "\x9C" => '&#176;',
  87         "\x9D" => '&#178;',
  88         "\x9E" => '&#183;',
  89         "\x9F" => '&#247;',
  90         "\xA0" => '&#9552;',
  91         "\xA1" => '&#9553;',
  92         "\xA2" => '&#9554;',
  93         "\xA3" => '&#1105;',
  94         "\xA4" => '&#9555;',
  95         "\xA5" => '&#9556;',
  96         "\xA6" => '&#9557;',
  97         "\xA7" => '&#9558;',
  98         "\xA8" => '&#9559;',
  99         "\xA9" => '&#9560;',
 100         "\xAA" => '&#9561;',
 101         "\xAB" => '&#9562;',
 102         "\xAC" => '&#9563;',
 103         "\xAD" => '&#9564;',
 104         "\xAE" => '&#9565;',
 105         "\xAF" => '&#9566;',
 106         "\xB0" => '&#9567;',
 107         "\xB1" => '&#9568;',
 108         "\xB2" => '&#9569;',
 109         "\xB3" => '&#1025;',
 110         "\xB4" => '&#9570;',
 111         "\xB5" => '&#9571;',
 112         "\xB6" => '&#9572;',
 113         "\xB7" => '&#9573;',
 114         "\xB8" => '&#9574;',
 115         "\xB9" => '&#9575;',
 116         "\xBA" => '&#9576;',
 117         "\xBB" => '&#9577;',
 118         "\xBC" => '&#9578;',
 119         "\xBD" => '&#9579;',
 120         "\xBE" => '&#9580;',
 121         "\xBF" => '&#169;',
 122         "\xC0" => '&#1102;',
 123         "\xC1" => '&#1072;',
 124         "\xC2" => '&#1073;',
 125         "\xC3" => '&#1094;',
 126         "\xC4" => '&#1076;',
 127         "\xC5" => '&#1077;',
 128         "\xC6" => '&#1092;',
 129         "\xC7" => '&#1075;',
 130         "\xC8" => '&#1093;',
 131         "\xC9" => '&#1080;',
 132         "\xCA" => '&#1081;',
 133         "\xCB" => '&#1082;',
 134         "\xCC" => '&#1083;',
 135         "\xCD" => '&#1084;',
 136         "\xCE" => '&#1085;',
 137         "\xCF" => '&#1086;',
 138         "\xD0" => '&#1087;',
 139         "\xD1" => '&#1103;',
 140         "\xD2" => '&#1088;',
 141         "\xD3" => '&#1089;',
 142         "\xD4" => '&#1090;',
 143         "\xD5" => '&#1091;',
 144         "\xD6" => '&#1078;',
 145         "\xD7" => '&#1074;',
 146         "\xD8" => '&#1100;',
 147         "\xD9" => '&#1099;',
 148         "\xDA" => '&#1079;',
 149         "\xDB" => '&#1096;',
 150         "\xDC" => '&#1101;',
 151         "\xDD" => '&#1097;',
 152         "\xDE" => '&#1095;',
 153         "\xDF" => '&#1098;',
 154         "\xE0" => '&#1070;',
 155         "\xE1" => '&#1040;',
 156         "\xE2" => '&#1041;',
 157         "\xE3" => '&#1062;',
 158         "\xE4" => '&#1044;',
 159         "\xE5" => '&#1045;',
 160         "\xE6" => '&#1060;',
 161         "\xE7" => '&#1043;',
 162         "\xE8" => '&#1061;',
 163         "\xE9" => '&#1048;',
 164         "\xEA" => '&#1049;',
 165         "\xEB" => '&#1050;',
 166         "\xEC" => '&#1051;',
 167         "\xED" => '&#1052;',
 168         "\xEE" => '&#1053;',
 169         "\xEF" => '&#1054;',
 170         "\xF0" => '&#1055;',
 171         "\xF1" => '&#1071;',
 172         "\xF2" => '&#1056;',
 173         "\xF3" => '&#1057;',
 174         "\xF4" => '&#1058;',
 175         "\xF5" => '&#1059;',
 176         "\xF6" => '&#1046;',
 177         "\xF7" => '&#1042;',
 178         "\xF8" => '&#1068;',
 179         "\xF9" => '&#1067;',
 180         "\xFA" => '&#1047;',
 181         "\xFB" => '&#1064;',
 182         "\xFC" => '&#1069;',
 183         "\xFD" => '&#1065;',
 184         "\xFE" => '&#1063;',
 185         "\xFF" => '&#1066;'
 186     );
 187
 188     $string = str_replace(array_keys($koi8r), array_values($koi8r), $string);
 189
 190     return $string;
 191 }
 192 ?>