functions/encode/iso_8859_9.php

   1 <?php
   2 /**
   3  * iso-8859-9 encoding functions
   4  *
   5  * takes a string of unicode entities and converts it to a iso-8859-9 encoded string
   6  * Unsupported characters are replaced with ?.
   7  *
   8  * @version $Id$
   9  * @copyright Copyright &copy; SquirrelMail Development Team, 2004
  10  * @package squirrelmail
  11  * @subpackage encode
  12  */
  13
  14 /**
  15  * Converts string to iso-8859-9
  16  * @param string $string text with numeric unicode entities
  17  * @return string iso-8859-9 encoded text
  18  */
  19 function charset_encode_iso_8859_9 ($string) {
  20    // don't run encoding function, if there is no encoded characters
  21    if (! preg_match("'&#[0-9]+;'",$string) ) return $string;
  22
  23     $string=preg_replace("/&#([0-9]+);/e","unicodetoiso88599('\\1')",$string);
  24     // $string=preg_replace("/&#[xX]([0-9A-F]+);/e","unicodetoiso88599(hexdec('\\1'))",$string);
  25
  26     return $string;
  27 }
  28
  29 /**
  30  * Return iso-8859-9 symbol when unicode character number is provided
  31  *
  32  * This function is used internally by charset_encode_iso_8859_9
  33  * function. It might be unavailable to other squirrelmail functions.
  34  * Don't use it or make sure, that functions/encode/iso_8859_9.php is
  35  * included.
  36  *
  37  * @param int $var decimal unicode value
  38  * @return string iso-8859-9 character
  39  */
  40 function unicodetoiso88599($var) {
  41
  42     $iso88599chars=array('160' => "\xA0",
  43                          '161' => "\xA1",
  44                          '162' => "\xA2",
  45                          '163' => "\xA3",
  46                          '164' => "\xA4",
  47                          '165' => "\xA5",
  48                          '166' => "\xA6",
  49                          '167' => "\xA7",
  50                          '168' => "\xA8",
  51                          '169' => "\xA9",
  52                          '170' => "\xAA",
  53                          '171' => "\xAB",
  54                          '172' => "\xAC",
  55                          '173' => "\xAD",
  56                          '174' => "\xAE",
  57                          '175' => "\xAF",
  58                          '176' => "\xB0",
  59                          '177' => "\xB1",
  60                          '178' => "\xB2",
  61                          '179' => "\xB3",
  62                          '180' => "\xB4",
  63                          '181' => "\xB5",
  64                          '182' => "\xB6",
  65                          '183' => "\xB7",
  66                          '184' => "\xB8",
  67                          '185' => "\xB9",
  68                          '186' => "\xBA",
  69                          '187' => "\xBB",
  70                          '188' => "\xBC",
  71                          '189' => "\xBD",
  72                          '190' => "\xBE",
  73                          '191' => "\xBF",
  74                          '192' => "\xC0",
  75                          '193' => "\xC1",
  76                          '194' => "\xC2",
  77                          '195' => "\xC3",
  78                          '196' => "\xC4",
  79                          '197' => "\xC5",
  80                          '198' => "\xC6",
  81                          '199' => "\xC7",
  82                          '200' => "\xC8",
  83                          '201' => "\xC9",
  84                          '202' => "\xCA",
  85                          '203' => "\xCB",
  86                          '204' => "\xCC",
  87                          '205' => "\xCD",
  88                          '206' => "\xCE",
  89                          '207' => "\xCF",
  90                          '209' => "\xD1",
  91                          '210' => "\xD2",
  92                          '211' => "\xD3",
  93                          '212' => "\xD4",
  94                          '213' => "\xD5",
  95                          '214' => "\xD6",
  96                          '215' => "\xD7",
  97                          '216' => "\xD8",
  98                          '217' => "\xD9",
  99                          '218' => "\xDA",
 100                          '219' => "\xDB",
 101                          '220' => "\xDC",
 102                          '223' => "\xDF",
 103                          '224' => "\xE0",
 104                          '225' => "\xE1",
 105                          '226' => "\xE2",
 106                          '227' => "\xE3",
 107                          '228' => "\xE4",
 108                          '229' => "\xE5",
 109                          '230' => "\xE6",
 110                          '231' => "\xE7",
 111                          '232' => "\xE8",
 112                          '233' => "\xE9",
 113                          '234' => "\xEA",
 114                          '235' => "\xEB",
 115                          '236' => "\xEC",
 116                          '237' => "\xED",
 117                          '238' => "\xEE",
 118                          '239' => "\xEF",
 119                          '241' => "\xF1",
 120                          '242' => "\xF2",
 121                          '243' => "\xF3",
 122                          '244' => "\xF4",
 123                          '245' => "\xF5",
 124                          '246' => "\xF6",
 125                          '247' => "\xF7",
 126                          '248' => "\xF8",
 127                          '249' => "\xF9",
 128                          '250' => "\xFA",
 129                          '251' => "\xFB",
 130                          '252' => "\xFC",
 131                          '255' => "\xFF",
 132                          '286' => "\xD0",
 133                          '287' => "\xF0",
 134                          '304' => "\xDD",
 135                          '305' => "\xFD",
 136                          '350' => "\xDE",
 137                          '351' => "\xFE");
 138
 139
 140     if (array_key_exists($var,$iso88599chars)) {
 141         $ret=$iso88599chars[$var];
 142     } else {
 143         $ret='?';
 144     }
 145     return $ret;
 146 }
 147 ?>