functions/decode/koi8_u.php

   1 <?php
   2
   3 /**
   4  * decode/koi8-u.php
   5  *
   6  * This file contains koi8-u decoding function that is needed to read
   7  * koi8-u encoded mails in non-koi8-u locale.
   8  *
   9  * Original data taken from rfc2319
  10  *
  11  * Original copyright:
  12  *
  13  * Copyright (C) The Internet Society (1998).  All Rights Reserved.
  14  *
  15  * This document and translations of it may be copied and furnished to
  16  * others, and derivative works that comment on or otherwise explain it
  17  * or assist in its implementation may be prepared, copied, published
  18  * and distributed, in whole or in part, without restriction of any
  19  * kind, provided that the above copyright notice and this paragraph are
  20  * included on all such copies and derivative works.  However, this
  21  * document itself may not be modified in any way, such as by removing
  22  * the copyright notice or references to the Internet Society or other
  23  * Internet organizations, except as needed for the purpose of
  24  * developing Internet standards in which case the procedures for
  25  * copyrights defined in the Internet Standards process must be
  26  * followed, or as required to translate it into languages other than
  27  * English.
  28  *
  29  * The limited permissions granted above are perpetual and will not be
  30  * revoked by the Internet Society or its successors or assigns.
  31  *
  32  * This document and the information contained herein is provided on an
  33  * "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
  34  * TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
  35  * BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
  36  * HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
  37  * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
  38  *
  39  * @copyright 2003-2022 The SquirrelMail Project Team
  40  * @license http://opensource.org/licenses/gpl-license.php GNU Public License
  41  * @version $Id$
  42  * @package squirrelmail
  43  * @subpackage decode
  44  */
  45
  46 /**
  47  * Decode koi8-u encoded strings
  48  * @param string $string Encoded string
  49  * @return string Decoded string
  50  */
  51 function charset_decode_koi8_u ($string) {
  52     // don't do decoding when there are no 8bit symbols
  53     if (! sq_is8bit($string,'koi8-u'))
  54         return $string;
  55
  56     $koi8u = array(
  57         "\x80" => '&#9472;',
  58         "\x81" => '&#9474;',
  59         "\x82" => '&#9484;',
  60         "\x83" => '&#9488;',
  61         "\x84" => '&#9492;',
  62         "\x85" => '&#9496;',
  63         "\x86" => '&#9500;',
  64         "\x87" => '&#9508;',
  65         "\x88" => '&#9516;',
  66         "\x89" => '&#9524;',
  67         "\x8A" => '&#9532;',
  68         "\x8B" => '&#9600;',
  69         "\x8C" => '&#9604;',
  70         "\x8D" => '&#9608;',
  71         "\x8E" => '&#9612;',
  72         "\x8F" => '&#9616;',
  73         "\x90" => '&#9617;',
  74         "\x91" => '&#9618;',
  75         "\x92" => '&#9619;',
  76         "\x93" => '&#8992;',
  77         "\x94" => '&#9632;',
  78         "\x95" => '&#8729;',
  79         "\x96" => '&#8730;',
  80         "\x97" => '&#8776;',
  81         "\x98" => '&#8804;',
  82         "\x99" => '&#8805;',
  83         "\x9A" => '&#160;',
  84         "\x9B" => '&#8993;',
  85         "\x9C" => '&#176;',
  86         "\x9D" => '&#178;',
  87         "\x9E" => '&#183;',
  88         "\x9F" => '&#247;',
  89         "\xA0" => '&#9552;',
  90         "\xA1" => '&#9553;',
  91         "\xA2" => '&#9554;',
  92         "\xA3" => '&#1105;',
  93         "\xA4" => '&#1108;',
  94         "\xA5" => '&#9556;',
  95         "\xA6" => '&#1110;',
  96         "\xA7" => '&#1111;',
  97         "\xA8" => '&#9559;',
  98         "\xA9" => '&#9560;',
  99         "\xAA" => '&#9561;',
 100         "\xAB" => '&#9562;',
 101         "\xAC" => '&#9563;',
 102         "\xAD" => '&#1169;',
 103         "\xAE" => '&#9565;',
 104         "\xAF" => '&#9566;',
 105         "\xB0" => '&#9567;',
 106         "\xB1" => '&#9568;',
 107         "\xB2" => '&#9569;',
 108         "\xB3" => '&#1025;',
 109         "\xB4" => '&#1027;',
 110         "\xB5" => '&#9571;',
 111         "\xB6" => '&#1030;',
 112         "\xB7" => '&#1031;',
 113         "\xB8" => '&#9574;',
 114         "\xB9" => '&#9575;',
 115         "\xBA" => '&#9576;',
 116         "\xBB" => '&#9577;',
 117         "\xBC" => '&#9578;',
 118         "\xBD" => '&#1168;',
 119         "\xBE" => '&#9580;',
 120         "\xBF" => '&#169;',
 121         "\xC0" => '&#1102;',
 122         "\xC1" => '&#1072;',
 123         "\xC2" => '&#1073;',
 124         "\xC3" => '&#1094;',
 125         "\xC4" => '&#1076;',
 126         "\xC5" => '&#1077;',
 127         "\xC6" => '&#1092;',
 128         "\xC7" => '&#1075;',
 129         "\xC8" => '&#1093;',
 130         "\xC9" => '&#1080;',
 131         "\xCA" => '&#1081;',
 132         "\xCB" => '&#1082;',
 133         "\xCC" => '&#1083;',
 134         "\xCD" => '&#1084;',
 135         "\xCE" => '&#1085;',
 136         "\xCF" => '&#1086;',
 137         "\xD0" => '&#1087;',
 138         "\xD1" => '&#1103;',
 139         "\xD2" => '&#1088;',
 140         "\xD3" => '&#1089;',
 141         "\xD4" => '&#1090;',
 142         "\xD5" => '&#1091;',
 143         "\xD6" => '&#1078;',
 144         "\xD7" => '&#1074;',
 145         "\xD8" => '&#1100;',
 146         "\xD9" => '&#1099;',
 147         "\xDA" => '&#1079;',
 148         "\xDB" => '&#1096;',
 149         "\xDC" => '&#1101;',
 150         "\xDD" => '&#1097;',
 151         "\xDE" => '&#1095;',
 152         "\xDF" => '&#1098;',
 153         "\xE0" => '&#1070;',
 154         "\xE1" => '&#1040;',
 155         "\xE2" => '&#1041;',
 156         "\xE3" => '&#1062;',
 157         "\xE4" => '&#1044;',
 158         "\xE5" => '&#1045;',
 159         "\xE6" => '&#1060;',
 160         "\xE7" => '&#1043;',
 161         "\xE8" => '&#1061;',
 162         "\xE9" => '&#1048;',
 163         "\xEA" => '&#1049;',
 164         "\xEB" => '&#1050;',
 165         "\xEC" => '&#1051;',
 166         "\xED" => '&#1052;',
 167         "\xEE" => '&#1053;',
 168         "\xEF" => '&#1054;',
 169         "\xF0" => '&#1055;',
 170         "\xF1" => '&#1071;',
 171         "\xF2" => '&#1056;',
 172         "\xF3" => '&#1057;',
 173         "\xF4" => '&#1058;',
 174         "\xF5" => '&#1059;',
 175         "\xF6" => '&#1046;',
 176         "\xF7" => '&#1042;',
 177         "\xF8" => '&#1068;',
 178         "\xF9" => '&#1067;',
 179         "\xFA" => '&#1047;',
 180         "\xFB" => '&#1064;',
 181         "\xFC" => '&#1069;',
 182         "\xFD" => '&#1065;',
 183         "\xFE" => '&#1063;',
 184         "\xFF" => '&#1066;'
 185     );
 186
 187     $string = str_replace(array_keys($koi8u), array_values($koi8u), $string);
 188
 189     return $string;
 190 }