functions/decode/tis_620.php

   1 <?php
   2
   3 /**
   4  * decode/tis620.php
   5  *
   6  * This file contains tis620 decoding function that is needed to read
   7  * tis620 encoded mails in non-tis620 locale.
   8  *
   9  * Original data taken from:
  10  *  http://www.inet.co.th/cyberclub/trin/thairef/tis620-iso10646.html
  11  *
  12  * Original copyright:
  13  *  Note: The information contained herein is provided as-is. It was
  14  *  complied from various references given at the end of the page.
  15  *  The author (trin@mozart.inet.co.th) believes all information
  16  *  presented here is accurate.
  17  *
  18  *     References
  19  *  1. [1]TIS 620-2533 Standard for Thai Character Codes for Computers
  20  *      (in Thai), [2]Thai Industrial Standards Institute
  21  *  2. [3]Thai Information Technology Standards, On-line resources at the
  22  *     National Electronics and Computer Technology Center (NECTEC)
  23  *  3. ISO/IEC 10646-1, [4]ISO/IEC JTC1/SC2
  24  *  4. [5]Thai block in Unicode 2.1, [6]Unicode Consortium
  25  *
  26  *  Links
  27  *  1. http://www.nectec.or.th/it-standards/std620/std620.htm
  28  *  2. http://www.tisi.go.th/
  29  *  3. http://www.nectec.or.th/it-standards/
  30  *  4. http://wwwold.dkuug.dk/JTC1/SC2/
  31  *  5. http://charts.unicode.org/Unicode.charts/normal/U0E00.html
  32  *  6. http://www.unicode.org/
  33  *
  34  * @copyright &copy; 2003-2006 The SquirrelMail Project Team
  35  * @license http://opensource.org/licenses/gpl-license.php GNU Public License
  36  * @version $Id$
  37  * @package squirrelmail
  38  * @subpackage decode
  39  */
  40
  41 /**
  42  * Decode tis620 encoded strings
  43  * @param string $string Encoded string
  44  * @return string Decoded string
  45  */
  46 function charset_decode_tis_620 ($string) {
  47     // don't do decoding when there are no 8bit symbols
  48     if (! sq_is8bit($string,'tis-620'))
  49         return $string;
  50
  51     $tis620 = array(
  52         "\xA0" => '&#65535;',
  53         "\xA1" => '&#3585;',
  54         "\xA2" => '&#3586;',
  55         "\xA3" => '&#3587;',
  56         "\xA4" => '&#3588;',
  57         "\xA5" => '&#3589;',
  58         "\xA6" => '&#3590;',
  59         "\xA7" => '&#3591;',
  60         "\xA8" => '&#3592;',
  61         "\xA9" => '&#3593;',
  62         "\xAA" => '&#3594;',
  63         "\xAB" => '&#3595;',
  64         "\xAC" => '&#3596;',
  65         "\xAD" => '&#3597;',
  66         "\xAE" => '&#3598;',
  67         "\xAF" => '&#3599;',
  68         "\xB0" => '&#3600;',
  69         "\xB1" => '&#3601;',
  70         "\xB2" => '&#3602;',
  71         "\xB3" => '&#3603;',
  72         "\xB4" => '&#3604;',
  73         "\xB5" => '&#3605;',
  74         "\xB6" => '&#3606;',
  75         "\xB7" => '&#3607;',
  76         "\xB8" => '&#3608;',
  77         "\xB9" => '&#3609;',
  78         "\xBA" => '&#3610;',
  79         "\xBB" => '&#3611;',
  80         "\xBC" => '&#3612;',
  81         "\xBD" => '&#3613;',
  82         "\xBE" => '&#3614;',
  83         "\xBF" => '&#3615;',
  84         "\xC0" => '&#3616;',
  85         "\xC1" => '&#3617;',
  86         "\xC2" => '&#3618;',
  87         "\xC3" => '&#3619;',
  88         "\xC4" => '&#3620;',
  89         "\xC5" => '&#3621;',
  90         "\xC6" => '&#3622;',
  91         "\xC7" => '&#3623;',
  92         "\xC8" => '&#3624;',
  93         "\xC9" => '&#3625;',
  94         "\xCA" => '&#3626;',
  95         "\xCB" => '&#3627;',
  96         "\xCC" => '&#3628;',
  97         "\xCD" => '&#3629;',
  98         "\xCE" => '&#3630;',
  99         "\xCF" => '&#3631;',
 100         "\xD0" => '&#3632;',
 101         "\xD1" => '&#3633;',
 102         "\xD2" => '&#3634;',
 103         "\xD3" => '&#3635;',
 104         "\xD4" => '&#3636;',
 105         "\xD5" => '&#3637;',
 106         "\xD6" => '&#3638;',
 107         "\xD7" => '&#3639;',
 108         "\xD8" => '&#3640;',
 109         "\xD9" => '&#3641;',
 110         "\xDA" => '&#3642;',
 111         "\xDB" => '&#65535;',
 112         "\xDC" => '&#65535;',
 113         "\xDD" => '&#65535;',
 114         "\xDE" => '&#65535;',
 115         "\xDF" => '&#3647;',
 116         "\xE0" => '&#3648;',
 117         "\xE1" => '&#3649;',
 118         "\xE2" => '&#3650;',
 119         "\xE3" => '&#3651;',
 120         "\xE4" => '&#3652;',
 121         "\xE5" => '&#3653;',
 122         "\xE6" => '&#3654;',
 123         "\xE7" => '&#3655;',
 124         "\xE8" => '&#3656;',
 125         "\xE9" => '&#3657;',
 126         "\xEA" => '&#3658;',
 127         "\xEB" => '&#3659;',
 128         "\xEC" => '&#3660;',
 129         "\xED" => '&#3661;',
 130         "\xEE" => '&#3662;',
 131         "\xEF" => '&#3663;',
 132         "\xF0" => '&#3664;',
 133         "\xF1" => '&#3665;',
 134         "\xF2" => '&#3666;',
 135         "\xF3" => '&#3667;',
 136         "\xF4" => '&#3668;',
 137         "\xF5" => '&#3669;',
 138         "\xF6" => '&#3670;',
 139         "\xF7" => '&#3671;',
 140         "\xF8" => '&#3672;',
 141         "\xF9" => '&#3673;',
 142         "\xFA" => '&#3674;',
 143         "\xFB" => '&#3675;',
 144         "\xFC" => '&#65535;',
 145         "\xFD" => '&#65535;',
 146         "\xFE" => '&#65535;',
 147         "\xFF" => '&#65535;'
 148         );
 149
 150     $string = str_replace(array_keys($tis620), array_values($tis620), $string);
 151
 152     return $string;
 153 }