functions/encode/cp1251.php

   1 <?php
   2 /**
   3  * cp1251 encoding functions
   4  *
   5  * takes a string of unicode entities and converts it to a cp1251 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 cp1251
  16  * @param string $string text with numeric unicode entities
  17  * @return string cp1251 encoded text
  18  */
  19 function charset_encode_cp1251 ($string) {
  20    // don't run encoding function, if there is no encoded characters
  21    if (! preg_match("'&#[0-9]+;'",$string) ) return $string;
  22
  23     $string=preg_replace("/&#([0-9]+);/e","unicodetocp1251('\\1')",$string);
  24     // $string=preg_replace("/&#[xX]([0-9A-F]+);/e","unicodetocp1251(hexdec('\\1'))",$string);
  25
  26     return $string;
  27 }
  28
  29 /**
  30  * Return cp1251 symbol when unicode character number is provided
  31  *
  32  * This function is used internally by charset_encode_cp1251
  33  * function. It might be unavailable to other squirrelmail functions.
  34  * Don't use it or make sure, that functions/encode/cp1251.php is
  35  * included.
  36  *
  37  * @param int $var decimal unicode value
  38  * @return string cp1251 character
  39  */
  40 function unicodetocp1251($var) {
  41
  42     $cp1251chars=array('160' => "\xA0",
  43                        '164' => "\xA4",
  44                        '166' => "\xA6",
  45                        '167' => "\xA7",
  46                        '169' => "\xA9",
  47                        '171' => "\xAB",
  48                        '172' => "\xAC",
  49                        '173' => "\xAD",
  50                        '174' => "\xAE",
  51                        '176' => "\xB0",
  52                        '177' => "\xB1",
  53                        '181' => "\xB5",
  54                        '182' => "\xB6",
  55                        '183' => "\xB7",
  56                        '187' => "\xBB",
  57                        '1025' => "\xA8",
  58                        '1026' => "\x80",
  59                        '1027' => "\x81",
  60                        '1028' => "\xAA",
  61                        '1029' => "\xBD",
  62                        '1030' => "\xB2",
  63                        '1031' => "\xAF",
  64                        '1032' => "\xA3",
  65                        '1033' => "\x8A",
  66                        '1034' => "\x8C",
  67                        '1035' => "\x8E",
  68                        '1036' => "\x8D",
  69                        '1038' => "\xA1",
  70                        '1039' => "\x8F",
  71                        '1040' => "\xC0",
  72                        '1041' => "\xC1",
  73                        '1042' => "\xC2",
  74                        '1043' => "\xC3",
  75                        '1044' => "\xC4",
  76                        '1045' => "\xC5",
  77                        '1046' => "\xC6",
  78                        '1047' => "\xC7",
  79                        '1048' => "\xC8",
  80                        '1049' => "\xC9",
  81                        '1050' => "\xCA",
  82                        '1051' => "\xCB",
  83                        '1052' => "\xCC",
  84                        '1053' => "\xCD",
  85                        '1054' => "\xCE",
  86                        '1055' => "\xCF",
  87                        '1056' => "\xD0",
  88                        '1057' => "\xD1",
  89                        '1058' => "\xD2",
  90                        '1059' => "\xD3",
  91                        '1060' => "\xD4",
  92                        '1061' => "\xD5",
  93                        '1062' => "\xD6",
  94                        '1063' => "\xD7",
  95                        '1064' => "\xD8",
  96                        '1065' => "\xD9",
  97                        '1066' => "\xDA",
  98                        '1067' => "\xDB",
  99                        '1068' => "\xDC",
 100                        '1069' => "\xDD",
 101                        '1070' => "\xDE",
 102                        '1071' => "\xDF",
 103                        '1072' => "\xE0",
 104                        '1073' => "\xE1",
 105                        '1074' => "\xE2",
 106                        '1075' => "\xE3",
 107                        '1076' => "\xE4",
 108                        '1077' => "\xE5",
 109                        '1078' => "\xE6",
 110                        '1079' => "\xE7",
 111                        '1080' => "\xE8",
 112                        '1081' => "\xE9",
 113                        '1082' => "\xEA",
 114                        '1083' => "\xEB",
 115                        '1084' => "\xEC",
 116                        '1085' => "\xED",
 117                        '1086' => "\xEE",
 118                        '1087' => "\xEF",
 119                        '1088' => "\xF0",
 120                        '1089' => "\xF1",
 121                        '1090' => "\xF2",
 122                        '1091' => "\xF3",
 123                        '1092' => "\xF4",
 124                        '1093' => "\xF5",
 125                        '1094' => "\xF6",
 126                        '1095' => "\xF7",
 127                        '1096' => "\xF8",
 128                        '1097' => "\xF9",
 129                        '1098' => "\xFA",
 130                        '1099' => "\xFB",
 131                        '1100' => "\xFC",
 132                        '1101' => "\xFD",
 133                        '1102' => "\xFE",
 134                        '1103' => "\xFF",
 135                        '1105' => "\xB8",
 136                        '1106' => "\x90",
 137                        '1107' => "\x83",
 138                        '1108' => "\xBA",
 139                        '1109' => "\xBE",
 140                        '1110' => "\xB3",
 141                        '1111' => "\xBF",
 142                        '1112' => "\xBC",
 143                        '1113' => "\x9A",
 144                        '1114' => "\x9C",
 145                        '1115' => "\x9E",
 146                        '1116' => "\x9D",
 147                        '1118' => "\xA2",
 148                        '1119' => "\x9F",
 149                        '1168' => "\xA5",
 150                        '1169' => "\xB4",
 151                        '8211' => "\x96",
 152                        '8212' => "\x97",
 153                        '8216' => "\x91",
 154                        '8217' => "\x92",
 155                        '8218' => "\x82",
 156                        '8220' => "\x93",
 157                        '8221' => "\x94",
 158                        '8222' => "\x84",
 159                        '8224' => "\x86",
 160                        '8225' => "\x87",
 161                        '8226' => "\x95",
 162                        '8230' => "\x85",
 163                        '8240' => "\x89",
 164                        '8249' => "\x8B",
 165                        '8250' => "\x9B",
 166                        '8364' => "\x88",
 167                        '8470' => "\xB9",
 168                        '8482' => "\x99");
 169
 170     if (array_key_exists($var,$cp1251chars)) {
 171         $ret=$cp1251chars[$var];
 172     } else {
 173         $ret='?';
 174     }
 175     return $ret;
 176 }
 177 ?>