functions/encode/iso_8859_15.php

   1 <?php
   2
   3 /**
   4  * iso-8859-15 encoding functions
   5  *
   6  * takes a string of unicode entities and converts it to a iso-8859-15 encoded string
   7  * Unsupported characters are replaced with ?.
   8  *
   9  * @copyright 2004-2019 The SquirrelMail Project Team
  10  * @license http://opensource.org/licenses/gpl-license.php GNU Public License
  11  * @version $Id$
  12  * @package squirrelmail
  13  * @subpackage encode
  14  */
  15
  16 /**
  17  * Converts string to iso-8859-15
  18  * @param string $string text with numeric unicode entities
  19  * @return string iso-8859-15 encoded text
  20  */
  21 function charset_encode_iso_8859_15 ($string) {
  22    // don't run encoding function, if there is no encoded characters
  23    if (! preg_match("'&#[0-9]+;'",$string) ) return $string;
  24
  25     $string=preg_replace_callback("/&#([0-9]+);/",'unicodetoiso885915',$string);
  26
  27     return $string;
  28 }
  29
  30 /**
  31  * Return iso-8859-15 symbol when unicode character number is provided
  32  *
  33  * This function is used internally by charset_encode_iso_8859_15
  34  * function. It might be unavailable to other SquirrelMail functions.
  35  * Don't use it or make sure, that functions/encode/iso_8859_15.php is
  36  * included.
  37  *
  38  * @param array $matches array with first element a decimal unicode value
  39  * @return string iso-8859-15 character
  40  */
  41 function unicodetoiso885915($matches) {
  42     $var = $matches[1];
  43
  44     $iso885915chars=array('160' => "\xA0",
  45                           '161' => "\xA1",
  46                           '162' => "\xA2",
  47                           '163' => "\xA3",
  48                           '165' => "\xA5",
  49                           '167' => "\xA7",
  50                           '169' => "\xA9",
  51                           '170' => "\xAA",
  52                           '171' => "\xAB",
  53                           '172' => "\xAC",
  54                           '173' => "\xAD",
  55                           '174' => "\xAE",
  56                           '175' => "\xAF",
  57                           '176' => "\xB0",
  58                           '177' => "\xB1",
  59                           '178' => "\xB2",
  60                           '179' => "\xB3",
  61                           '181' => "\xB5",
  62                           '182' => "\xB6",
  63                           '183' => "\xB7",
  64                           '185' => "\xB9",
  65                           '186' => "\xBA",
  66                           '187' => "\xBB",
  67                           '191' => "\xBF",
  68                           '192' => "\xC0",
  69                           '193' => "\xC1",
  70                           '194' => "\xC2",
  71                           '195' => "\xC3",
  72                           '196' => "\xC4",
  73                           '197' => "\xC5",
  74                           '198' => "\xC6",
  75                           '199' => "\xC7",
  76                           '200' => "\xC8",
  77                           '201' => "\xC9",
  78                           '202' => "\xCA",
  79                           '203' => "\xCB",
  80                           '204' => "\xCC",
  81                           '205' => "\xCD",
  82                           '206' => "\xCE",
  83                           '207' => "\xCF",
  84                           '208' => "\xD0",
  85                           '209' => "\xD1",
  86                           '210' => "\xD2",
  87                           '211' => "\xD3",
  88                           '212' => "\xD4",
  89                           '213' => "\xD5",
  90                           '214' => "\xD6",
  91                           '215' => "\xD7",
  92                           '216' => "\xD8",
  93                           '217' => "\xD9",
  94                           '218' => "\xDA",
  95                           '219' => "\xDB",
  96                           '220' => "\xDC",
  97                           '221' => "\xDD",
  98                           '222' => "\xDE",
  99                           '223' => "\xDF",
 100                           '224' => "\xE0",
 101                           '225' => "\xE1",
 102                           '226' => "\xE2",
 103                           '227' => "\xE3",
 104                           '228' => "\xE4",
 105                           '229' => "\xE5",
 106                           '230' => "\xE6",
 107                           '231' => "\xE7",
 108                           '232' => "\xE8",
 109                           '233' => "\xE9",
 110                           '234' => "\xEA",
 111                           '235' => "\xEB",
 112                           '236' => "\xEC",
 113                           '237' => "\xED",
 114                           '238' => "\xEE",
 115                           '239' => "\xEF",
 116                           '240' => "\xF0",
 117                           '241' => "\xF1",
 118                           '242' => "\xF2",
 119                           '243' => "\xF3",
 120                           '244' => "\xF4",
 121                           '245' => "\xF5",
 122                           '246' => "\xF6",
 123                           '247' => "\xF7",
 124                           '248' => "\xF8",
 125                           '249' => "\xF9",
 126                           '250' => "\xFA",
 127                           '251' => "\xFB",
 128                           '252' => "\xFC",
 129                           '253' => "\xFD",
 130                           '254' => "\xFE",
 131                           '255' => "\xFF",
 132                           '338' => "\xBC",
 133                           '339' => "\xBD",
 134                           '352' => "\xA6",
 135                           '353' => "\xA8",
 136                           '376' => "\xBE",
 137                           '381' => "\xB4",
 138                           '382' => "\xB8",
 139                           '8364' => "\xA4");
 140
 141     if (array_key_exists($var,$iso885915chars)) {
 142         $ret=$iso885915chars[$var];
 143     } else {
 144         $ret='?';
 145     }
 146     return $ret;
 147 }