functions/encode/iso_8859_2.php

   1 <?php
   2
   3 /**
   4  * iso-8859-2 encoding functions
   5  *
   6  * takes a string of unicode entities and converts it to a iso-8859-2 encoded string
   7  * Unsupported characters are replaced with ?.
   8  *
   9  * @copyright 2004-2012 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-8859-2
  18  * @param string $string text with numeric unicode entities
  19  * @return string iso-8859-2 encoded text
  20  */
  21 function charset_encode_iso_8859_2 ($string) {
  22    // don't run encoding function, if there is no encoded characters
  23    if (! preg_match("'&#[0-9]+;'",$string) ) return $string;
  24
  25     $string=preg_replace("/&#([0-9]+);/e","unicodetoiso88592('\\1')",$string);
  26     // $string=preg_replace("/&#[xX]([0-9A-F]+);/e","unicodetoiso88592(hexdec('\\1'))",$string);
  27
  28     return $string;
  29 }
  30
  31 /**
  32  * Return iso-8859-2 symbol when unicode character number is provided
  33  *
  34  * This function is used internally by charset_encode_iso_8859_2
  35  * function. It might be unavailable to other SquirrelMail functions.
  36  * Don't use it or make sure, that functions/encode/iso_8859_2.php is
  37  * included.
  38  *
  39  * @param int $var decimal unicode value
  40  * @return string iso-8859-2 character
  41  */
  42 function unicodetoiso88592($var) {
  43
  44     $iso88592chars=array('160' => "\xA0",
  45                         '164' => "\xA4",
  46                         '167' => "\xA7",
  47                         '168' => "\xA8",
  48                         '173' => "\xAD",
  49                         '176' => "\xB0",
  50                         '180' => "\xB4",
  51                         '184' => "\xB8",
  52                         '193' => "\xC1",
  53                         '194' => "\xC2",
  54                         '196' => "\xC4",
  55                         '199' => "\xC7",
  56                         '201' => "\xC9",
  57                         '203' => "\xCB",
  58                         '205' => "\xCD",
  59                         '206' => "\xCE",
  60                         '211' => "\xD3",
  61                         '212' => "\xD4",
  62                         '214' => "\xD6",
  63                         '215' => "\xD7",
  64                         '218' => "\xDA",
  65                         '220' => "\xDC",
  66                         '221' => "\xDD",
  67                         '223' => "\xDF",
  68                         '225' => "\xE1",
  69                         '226' => "\xE2",
  70                         '228' => "\xE4",
  71                         '231' => "\xE7",
  72                         '233' => "\xE9",
  73                         '235' => "\xEB",
  74                         '237' => "\xED",
  75                         '238' => "\xEE",
  76                         '243' => "\xF3",
  77                         '244' => "\xF4",
  78                         '246' => "\xF6",
  79                         '247' => "\xF7",
  80                         '250' => "\xFA",
  81                         '252' => "\xFC",
  82                         '253' => "\xFD",
  83                         '258' => "\xC3",
  84                         '259' => "\xE3",
  85                         '260' => "\xA1",
  86                         '261' => "\xB1",
  87                         '262' => "\xC6",
  88                         '263' => "\xE6",
  89                         '268' => "\xC8",
  90                         '269' => "\xE8",
  91                         '270' => "\xCF",
  92                         '271' => "\xEF",
  93                         '272' => "\xD0",
  94                         '273' => "\xF0",
  95                         '280' => "\xCA",
  96                         '281' => "\xEA",
  97                         '282' => "\xCC",
  98                         '283' => "\xEC",
  99                         '313' => "\xC5",
 100                         '314' => "\xE5",
 101                         '317' => "\xA5",
 102                         '318' => "\xB5",
 103                         '321' => "\xA3",
 104                         '322' => "\xB3",
 105                         '323' => "\xD1",
 106                         '324' => "\xF1",
 107                         '327' => "\xD2",
 108                         '328' => "\xF2",
 109                         '336' => "\xD5",
 110                         '337' => "\xF5",
 111                         '340' => "\xC0",
 112                         '341' => "\xE0",
 113                         '344' => "\xD8",
 114                         '345' => "\xF8",
 115                         '346' => "\xA6",
 116                         '347' => "\xB6",
 117                         '350' => "\xAA",
 118                         '351' => "\xBA",
 119                         '352' => "\xA9",
 120                         '353' => "\xB9",
 121                         '354' => "\xDE",
 122                         '355' => "\xFE",
 123                         '356' => "\xAB",
 124                         '357' => "\xBB",
 125                         '366' => "\xD9",
 126                         '367' => "\xF9",
 127                         '368' => "\xDB",
 128                         '369' => "\xFB",
 129                         '377' => "\xAC",
 130                         '378' => "\xBC",
 131                         '379' => "\xAF",
 132                         '380' => "\xBF",
 133                         '381' => "\xAE",
 134                         '382' => "\xBE",
 135                         '711' => "\xB7",
 136                         '728' => "\xA2",
 137                         '729' => "\xFF",
 138                         '731' => "\xB2",
 139                         '733' => "\xBD");
 140
 141
 142     if (array_key_exists($var,$iso88592chars)) {
 143         $ret=$iso88592chars[$var];
 144     } else {
 145         $ret='?';
 146     }
 147     return $ret;
 148 }