functions/i18n.php

   1 <?php
   2
   3 /**
   4  * i18n.php
   5  *
   6  * Copyright (c) 1999-2003 The SquirrelMail Project Team
   7  * Licensed under the GNU GPL. For full terms see the file COPYING.
   8  *
   9  * This file contains variuos functions that are needed to do
  10  * internationalization of SquirrelMail.
  11  *
  12  * Internally the output character set is used. Other characters are
  13  * encoded using Unicode entities according to HTML 4.0.
  14  *
  15  * $Id$
  16  */
  17
  18 /* Decodes a string to the internal encoding from the given charset */
  19 function charset_decode ($charset, $string) {
  20     global $languages, $squirrelmail_language;
  21
  22     if (isset($languages[$squirrelmail_language]['XTRA_CODE']) &&
  23         function_exists($languages[$squirrelmail_language]['XTRA_CODE'])) {
  24         $string = $languages[$squirrelmail_language]['XTRA_CODE']('decode', $string);
  25     }
  26
  27     /* All HTML special characters are 7 bit and can be replaced first */
  28     $string = htmlspecialchars ($string);
  29
  30     $charset = strtolower($charset);
  31
  32     if (ereg('iso-8859-([[:digit:]]+)', $charset, $res)) {
  33         if ($res[1] == '1') {
  34             $ret = charset_decode_iso_8859_1 ($string);
  35         } else if ($res[1] == '2') {
  36             $ret = charset_decode_iso_8859_2 ($string);
  37         } else if ($res[1] == '4') {
  38             $ret = charset_decode_iso_8859_4 ($string);
  39         } else if ($res[1] == '7') {
  40             $ret = charset_decode_iso_8859_7 ($string);
  41         } else if ($res[1] == '9') {
  42             $ret = charset_decode_iso_8859_9 ($string);
  43         } else if ($res[1] == '13') {
  44             $ret = charset_decode_iso_8859_13 ($string);
  45         } else if ($res[1] == '15') {
  46             $ret = charset_decode_iso_8859_15 ($string);
  47         } else {
  48             $ret = charset_decode_iso_8859_default ($string);
  49         }
  50     } else if ($charset == 'ns_4551-1') {
  51         $ret = charset_decode_ns_4551_1 ($string);
  52     } else if ($charset == 'koi8-r') {
  53         $ret = charset_decode_koi8r ($string);
  54     } else if ($charset == 'windows-1251') {
  55         $ret = charset_decode_windows_1251 ($string);
  56     } else if ($charset == 'windows-1253') {
  57         $ret = charset_decode_windows_1253 ($string);
  58     } else if ($charset == 'windows-1254') {
  59         $ret = charset_decode_windows_1254 ($string);
  60     } else if ($charset == 'windows-1257') {
  61         $ret = charset_decode_windows_1257 ($string);
  62     } else if ($charset == 'utf-8') {
  63         $ret = charset_decode_utf8 ($string);
  64     } else {
  65         $ret = $string;
  66     }
  67     return( $ret );
  68 }
  69
  70 /*
  71  iso-8859-1 is the same as Latin 1 and is normally used
  72  in western europe.
  73  */
  74 function charset_decode_iso_8859_1 ($string) {
  75     global $default_charset;
  76
  77     if (strtolower($default_charset) <> 'iso-8859-1') {
  78         /* Only do the slow convert if there are 8-bit characters */
  79         if (ereg("[\200-\377]", $string)) {
  80             $string = str_replace("\201", '&#129;', $string);
  81             $string = str_replace("\202", '&#130;', $string);
  82             $string = str_replace("\203", '&#131;', $string);
  83             $string = str_replace("\204", '&#132;', $string);
  84             $string = str_replace("\205", '&#133;', $string);
  85             $string = str_replace("\206", '&#134;', $string);
  86             $string = str_replace("\207", '&#135;', $string);
  87             $string = str_replace("\210", '&#136;', $string);
  88             $string = str_replace("\211", '&#137;', $string);
  89             $string = str_replace("\212", '&#138;', $string);
  90             $string = str_replace("\213", '&#139;', $string);
  91             $string = str_replace("\214", '&#140;', $string);
  92             $string = str_replace("\215", '&#141;', $string);
  93             $string = str_replace("\216", '&#142;', $string);
  94             $string = str_replace("\217", '&#143;', $string);
  95             $string = str_replace("\220", '&#144;', $string);
  96             $string = str_replace("\221", '&#145;', $string);
  97             $string = str_replace("\222", '&#146;', $string);
  98             $string = str_replace("\223", '&#147;', $string);
  99             $string = str_replace("\224", '&#148;', $string);
 100             $string = str_replace("\225", '&#149;', $string);
 101             $string = str_replace("\226", '&#150;', $string);
 102             $string = str_replace("\227", '&#151;', $string);
 103             $string = str_replace("\230", '&#152;', $string);
 104             $string = str_replace("\231", '&#153;', $string);
 105             $string = str_replace("\232", '&#154;', $string);
 106             $string = str_replace("\233", '&#155;', $string);
 107             $string = str_replace("\234", '&#156;', $string);
 108             $string = str_replace("\235", '&#157;', $string);
 109             $string = str_replace("\236", '&#158;', $string);
 110             $string = str_replace("\237", '&#159;', $string);
 111             $string = str_replace("\240", '&#160;', $string);
 112             $string = str_replace("\241", '&#161;', $string);
 113             $string = str_replace("\242", '&#162;', $string);
 114             $string = str_replace("\243", '&#163;', $string);
 115             $string = str_replace("\244", '&#164;', $string);
 116             $string = str_replace("\245", '&#165;', $string);
 117             $string = str_replace("\246", '&#166;', $string);
 118             $string = str_replace("\247", '&#167;', $string);
 119             $string = str_replace("\250", '&#168;', $string);
 120             $string = str_replace("\251", '&#169;', $string);
 121             $string = str_replace("\252", '&#170;', $string);
 122             $string = str_replace("\253", '&#171;', $string);
 123             $string = str_replace("\254", '&#172;', $string);
 124             $string = str_replace("\255", '&#173;', $string);
 125             $string = str_replace("\256", '&#174;', $string);
 126             $string = str_replace("\257", '&#175;', $string);
 127             $string = str_replace("\260", '&#176;', $string);
 128             $string = str_replace("\261", '&#177;', $string);
 129             $string = str_replace("\262", '&#178;', $string);
 130             $string = str_replace("\263", '&#179;', $string);
 131             $string = str_replace("\264", '&#180;', $string);
 132             $string = str_replace("\265", '&#181;', $string);
 133             $string = str_replace("\266", '&#182;', $string);
 134             $string = str_replace("\267", '&#183;', $string);
 135             $string = str_replace("\270", '&#184;', $string);
 136             $string = str_replace("\271", '&#185;', $string);
 137             $string = str_replace("\272", '&#186;', $string);
 138             $string = str_replace("\273", '&#187;', $string);
 139             $string = str_replace("\274", '&#188;', $string);
 140             $string = str_replace("\275", '&#189;', $string);
 141             $string = str_replace("\276", '&#190;', $string);
 142             $string = str_replace("\277", '&#191;', $string);
 143             $string = str_replace("\300", '&#192;', $string);
 144             $string = str_replace("\301", '&#193;', $string);
 145             $string = str_replace("\302", '&#194;', $string);
 146             $string = str_replace("\303", '&#195;', $string);
 147             $string = str_replace("\304", '&#196;', $string);
 148             $string = str_replace("\305", '&#197;', $string);
 149             $string = str_replace("\306", '&#198;', $string);
 150             $string = str_replace("\307", '&#199;', $string);
 151             $string = str_replace("\310", '&#200;', $string);
 152             $string = str_replace("\311", '&#201;', $string);
 153             $string = str_replace("\312", '&#202;', $string);
 154             $string = str_replace("\313", '&#203;', $string);
 155             $string = str_replace("\314", '&#204;', $string);
 156             $string = str_replace("\315", '&#205;', $string);
 157             $string = str_replace("\316", '&#206;', $string);
 158             $string = str_replace("\317", '&#207;', $string);
 159             $string = str_replace("\320", '&#208;', $string);
 160             $string = str_replace("\321", '&#209;', $string);
 161             $string = str_replace("\322", '&#210;', $string);
 162             $string = str_replace("\323", '&#211;', $string);
 163             $string = str_replace("\324", '&#212;', $string);
 164             $string = str_replace("\325", '&#213;', $string);
 165             $string = str_replace("\326", '&#214;', $string);
 166             $string = str_replace("\327", '&#215;', $string);
 167             $string = str_replace("\330", '&#216;', $string);
 168             $string = str_replace("\331", '&#217;', $string);
 169             $string = str_replace("\332", '&#218;', $string);
 170             $string = str_replace("\333", '&#219;', $string);
 171             $string = str_replace("\334", '&#220;', $string);
 172             $string = str_replace("\335", '&#221;', $string);
 173             $string = str_replace("\336", '&#222;', $string);
 174             $string = str_replace("\337", '&#223;', $string);
 175             $string = str_replace("\340", '&#224;', $string);
 176             $string = str_replace("\341", '&#225;', $string);
 177             $string = str_replace("\342", '&#226;', $string);
 178             $string = str_replace("\343", '&#227;', $string);
 179             $string = str_replace("\344", '&#228;', $string);
 180             $string = str_replace("\345", '&#229;', $string);
 181             $string = str_replace("\346", '&#230;', $string);
 182             $string = str_replace("\347", '&#231;', $string);
 183             $string = str_replace("\350", '&#232;', $string);
 184             $string = str_replace("\351", '&#233;', $string);
 185             $string = str_replace("\352", '&#234;', $string);
 186             $string = str_replace("\353", '&#235;', $string);
 187             $string = str_replace("\354", '&#236;', $string);
 188             $string = str_replace("\355", '&#237;', $string);
 189             $string = str_replace("\356", '&#238;', $string);
 190             $string = str_replace("\357", '&#239;', $string);
 191             $string = str_replace("\360", '&#240;', $string);
 192             $string = str_replace("\361", '&#241;', $string);
 193             $string = str_replace("\362", '&#242;', $string);
 194             $string = str_replace("\363", '&#243;', $string);
 195             $string = str_replace("\364", '&#244;', $string);
 196             $string = str_replace("\365", '&#245;', $string);
 197             $string = str_replace("\366", '&#246;', $string);
 198             $string = str_replace("\367", '&#247;', $string);
 199             $string = str_replace("\370", '&#248;', $string);
 200             $string = str_replace("\371", '&#249;', $string);
 201             $string = str_replace("\372", '&#250;', $string);
 202             $string = str_replace("\373", '&#251;', $string);
 203             $string = str_replace("\374", '&#252;', $string);
 204             $string = str_replace("\375", '&#253;', $string);
 205             $string = str_replace("\376", '&#254;', $string);
 206             $string = str_replace("\377", '&#255;', $string);
 207         }
 208     }
 209
 210     return ($string);
 211 }
 212
 213 /* iso-8859-2 is used for some eastern European languages */
 214 function charset_decode_iso_8859_2 ($string) {
 215     global $default_charset;
 216
 217     if (strtolower($default_charset) == 'iso-8859-2')
 218         return $string;
 219
 220     /* Only do the slow convert if there are 8-bit characters */
 221     if (! ereg("[\200-\377]", $string))
 222         return $string;
 223
 224     /* NO-BREAK SPACE */
 225     $string = str_replace("\240", '&#160;', $string);
 226     /* LATIN CAPITAL LETTER A WITH OGONEK */
 227     $string = str_replace("\241", '&#260;', $string);
 228     /* BREVE */
 229     $string = str_replace("\242", '&#728;', $string);
 230     // LATIN CAPITAL LETTER L WITH STROKE
 231     $string = str_replace("\243", '&#321;', $string);
 232     // CURRENCY SIGN
 233     $string = str_replace("\244", '&#164;', $string);
 234     // LATIN CAPITAL LETTER L WITH CARON
 235     $string = str_replace("\245", '&#317;', $string);
 236     // LATIN CAPITAL LETTER S WITH ACUTE
 237     $string = str_replace("\246", '&#346;', $string);
 238     // SECTION SIGN
 239     $string = str_replace("\247", '&#167;', $string);
 240     // DIAERESIS
 241     $string = str_replace("\250", '&#168;', $string);
 242     // LATIN CAPITAL LETTER S WITH CARON
 243     $string = str_replace("\251", '&#352;', $string);
 244     // LATIN CAPITAL LETTER S WITH CEDILLA
 245     $string = str_replace("\252", '&#350;', $string);
 246     // LATIN CAPITAL LETTER T WITH CARON
 247     $string = str_replace("\253", '&#356;', $string);
 248     // LATIN CAPITAL LETTER Z WITH ACUTE
 249     $string = str_replace("\254", '&#377;', $string);
 250     // SOFT HYPHEN
 251     $string = str_replace("\255", '&#173;', $string);
 252     // LATIN CAPITAL LETTER Z WITH CARON
 253     $string = str_replace("\256", '&#381;', $string);
 254     // LATIN CAPITAL LETTER Z WITH DOT ABOVE
 255     $string = str_replace("\257", '&#379;', $string);
 256     // DEGREE SIGN
 257     $string = str_replace("\260", '&#176;', $string);
 258     // LATIN SMALL LETTER A WITH OGONEK
 259     $string = str_replace("\261", '&#261;', $string);
 260     // OGONEK
 261     $string = str_replace("\262", '&#731;', $string);
 262     // LATIN SMALL LETTER L WITH STROKE
 263     $string = str_replace("\263", '&#322;', $string);
 264     // ACUTE ACCENT
 265     $string = str_replace("\264", '&#180;', $string);
 266     // LATIN SMALL LETTER L WITH CARON
 267     $string = str_replace("\265", '&#318;', $string);
 268     // LATIN SMALL LETTER S WITH ACUTE
 269     $string = str_replace("\266", '&#347;', $string);
 270     // CARON
 271     $string = str_replace("\267", '&#711;', $string);
 272     // CEDILLA
 273     $string = str_replace("\270", '&#184;', $string);
 274     // LATIN SMALL LETTER S WITH CARON
 275     $string = str_replace("\271", '&#353;', $string);
 276     // LATIN SMALL LETTER S WITH CEDILLA
 277     $string = str_replace("\272", '&#351;', $string);
 278     // LATIN SMALL LETTER T WITH CARON
 279     $string = str_replace("\273", '&#357;', $string);
 280     // LATIN SMALL LETTER Z WITH ACUTE
 281     $string = str_replace("\274", '&#378;', $string);
 282     // DOUBLE ACUTE ACCENT
 283     $string = str_replace("\275", '&#733;', $string);
 284     // LATIN SMALL LETTER Z WITH CARON
 285     $string = str_replace("\276", '&#382;', $string);
 286     // LATIN SMALL LETTER Z WITH DOT ABOVE
 287     $string = str_replace("\277", '&#380;', $string);
 288     // LATIN CAPITAL LETTER R WITH ACUTE
 289     $string = str_replace("\300", '&#340;', $string);
 290     // LATIN CAPITAL LETTER A WITH ACUTE
 291     $string = str_replace("\301", '&#193;', $string);
 292     // LATIN CAPITAL LETTER A WITH CIRCUMFLEX
 293     $string = str_replace("\302", '&#194;', $string);
 294     // LATIN CAPITAL LETTER A WITH BREVE
 295     $string = str_replace("\303", '&#258;', $string);
 296     // LATIN CAPITAL LETTER A WITH DIAERESIS
 297     $string = str_replace("\304", '&#196;', $string);
 298     // LATIN CAPITAL LETTER L WITH ACUTE
 299     $string = str_replace("\305", '&#313;', $string);
 300     // LATIN CAPITAL LETTER C WITH ACUTE
 301     $string = str_replace("\306", '&#262;', $string);
 302     // LATIN CAPITAL LETTER C WITH CEDILLA
 303     $string = str_replace("\307", '&#199;', $string);
 304     // LATIN CAPITAL LETTER C WITH CARON
 305     $string = str_replace("\310", '&#268;', $string);
 306     // LATIN CAPITAL LETTER E WITH ACUTE
 307     $string = str_replace("\311", '&#201;', $string);
 308     // LATIN CAPITAL LETTER E WITH OGONEK
 309     $string = str_replace("\312", '&#280;', $string);
 310     // LATIN CAPITAL LETTER E WITH DIAERESIS
 311     $string = str_replace("\313", '&#203;', $string);
 312     // LATIN CAPITAL LETTER E WITH CARON
 313     $string = str_replace("\314", '&#282;', $string);
 314     // LATIN CAPITAL LETTER I WITH ACUTE
 315     $string = str_replace("\315", '&#205;', $string);
 316     // LATIN CAPITAL LETTER I WITH CIRCUMFLEX
 317     $string = str_replace("\316", '&#206;', $string);
 318     // LATIN CAPITAL LETTER D WITH CARON
 319     $string = str_replace("\317", '&#270;', $string);
 320     // LATIN CAPITAL LETTER D WITH STROKE
 321     $string = str_replace("\320", '&#272;', $string);
 322     // LATIN CAPITAL LETTER N WITH ACUTE
 323     $string = str_replace("\321", '&#323;', $string);
 324     // LATIN CAPITAL LETTER N WITH CARON
 325     $string = str_replace("\322", '&#327;', $string);
 326     // LATIN CAPITAL LETTER O WITH ACUTE
 327     $string = str_replace("\323", '&#211;', $string);
 328     // LATIN CAPITAL LETTER O WITH CIRCUMFLEX
 329     $string = str_replace("\324", '&#212;', $string);
 330     // LATIN CAPITAL LETTER O WITH DOUBLE ACUTE
 331     $string = str_replace("\325", '&#336;', $string);
 332     // LATIN CAPITAL LETTER O WITH DIAERESIS
 333     $string = str_replace("\326", '&#214;', $string);
 334     // MULTIPLICATION SIGN
 335     $string = str_replace("\327", '&#215;', $string);
 336     // LATIN CAPITAL LETTER R WITH CARON
 337     $string = str_replace("\330", '&#344;', $string);
 338     // LATIN CAPITAL LETTER U WITH RING ABOVE
 339     $string = str_replace("\331", '&#366;', $string);
 340     // LATIN CAPITAL LETTER U WITH ACUTE
 341     $string = str_replace("\332", '&#218;', $string);
 342     // LATIN CAPITAL LETTER U WITH DOUBLE ACUTE
 343     $string = str_replace("\333", '&#368;', $string);
 344     // LATIN CAPITAL LETTER U WITH DIAERESIS
 345     $string = str_replace("\334", '&#220;', $string);
 346     // LATIN CAPITAL LETTER Y WITH ACUTE
 347     $string = str_replace("\335", '&#221;', $string);
 348     // LATIN CAPITAL LETTER T WITH CEDILLA
 349     $string = str_replace("\336", '&#354;', $string);
 350     // LATIN SMALL LETTER SHARP S
 351     $string = str_replace("\337", '&#223;', $string);
 352     // LATIN SMALL LETTER R WITH ACUTE
 353     $string = str_replace("\340", '&#341;', $string);
 354     // LATIN SMALL LETTER A WITH ACUTE
 355     $string = str_replace("\341", '&#225;', $string);
 356     // LATIN SMALL LETTER A WITH CIRCUMFLEX
 357     $string = str_replace("\342", '&#226;', $string);
 358     // LATIN SMALL LETTER A WITH BREVE
 359     $string = str_replace("\343", '&#259;', $string);
 360     // LATIN SMALL LETTER A WITH DIAERESIS
 361     $string = str_replace("\344", '&#228;', $string);
 362     // LATIN SMALL LETTER L WITH ACUTE
 363     $string = str_replace("\345", '&#314;', $string);
 364     // LATIN SMALL LETTER C WITH ACUTE
 365     $string = str_replace("\346", '&#263;', $string);
 366     // LATIN SMALL LETTER C WITH CEDILLA
 367     $string = str_replace("\347", '&#231;', $string);
 368     // LATIN SMALL LETTER C WITH CARON
 369     $string = str_replace("\350", '&#269;', $string);
 370     // LATIN SMALL LETTER E WITH ACUTE
 371     $string = str_replace("\351", '&#233;', $string);
 372     // LATIN SMALL LETTER E WITH OGONEK
 373     $string = str_replace("\352", '&#281;', $string);
 374     // LATIN SMALL LETTER E WITH DIAERESIS
 375     $string = str_replace("\353", '&#235;', $string);
 376     // LATIN SMALL LETTER E WITH CARON
 377     $string = str_replace("\354", '&#283;', $string);
 378     // LATIN SMALL LETTER I WITH ACUTE
 379     $string = str_replace("\355", '&#237;', $string);
 380     // LATIN SMALL LETTER I WITH CIRCUMFLEX
 381     $string = str_replace("\356", '&#238;', $string);
 382     // LATIN SMALL LETTER D WITH CARON
 383     $string = str_replace("\357", '&#271;', $string);
 384     // LATIN SMALL LETTER D WITH STROKE
 385     $string = str_replace("\360", '&#273;', $string);
 386     // LATIN SMALL LETTER N WITH ACUTE
 387     $string = str_replace("\361", '&#324;', $string);
 388     // LATIN SMALL LETTER N WITH CARON
 389     $string = str_replace("\362", '&#328;', $string);
 390     // LATIN SMALL LETTER O WITH ACUTE
 391     $string = str_replace("\363", '&#243;', $string);
 392     // LATIN SMALL LETTER O WITH CIRCUMFLEX
 393     $string = str_replace("\364", '&#244;', $string);
 394     // LATIN SMALL LETTER O WITH DOUBLE ACUTE
 395     $string = str_replace("\365", '&#337;', $string);
 396     // LATIN SMALL LETTER O WITH DIAERESIS
 397     $string = str_replace("\366", '&#246;', $string);
 398     // DIVISION SIGN
 399     $string = str_replace("\367", '&#247;', $string);
 400     // LATIN SMALL LETTER R WITH CARON
 401     $string = str_replace("\370", '&#345;', $string);
 402     // LATIN SMALL LETTER U WITH RING ABOVE
 403     $string = str_replace("\371", '&#367;', $string);
 404     // LATIN SMALL LETTER U WITH ACUTE
 405     $string = str_replace("\372", '&#250;', $string);
 406     // LATIN SMALL LETTER U WITH DOUBLE ACUTE
 407     $string = str_replace("\373", '&#369;', $string);
 408     // LATIN SMALL LETTER U WITH DIAERESIS
 409     $string = str_replace("\374", '&#252;', $string);
 410     // LATIN SMALL LETTER Y WITH ACUTE
 411     $string = str_replace("\375", '&#253;', $string);
 412     // LATIN SMALL LETTER T WITH CEDILLA
 413     $string = str_replace("\376", '&#355;', $string);
 414     // DOT ABOVE
 415     $string = str_replace("\377", '&#729;', $string);
 416
 417     return $string;
 418 }
 419
 420 /*
 421  ISO/IEC 8859-4:1998 Latin Alphabet No. 4
 422 */
 423
 424 function charset_decode_iso_8859_4 ($string) {
 425     global $default_charset, $languages, $sm_notAlias;
 426
 427     if (strtolower($default_charset) == 'iso-8859-4')
 428         return $string;
 429     if (strtolower($languages[$sm_notAlias]['CHARSET']) == 'iso-8859-4')
 430         return $string;
 431
 432     /* Only do the slow convert if there are 8-bit characters */
 433     if (! ereg("[\200-\377]", $string))
 434         return $string;
 435
 436     $string = str_replace ("\241", '&#260;', $string);
 437     $string = str_replace ("\242", '&#312;', $string);
 438     $string = str_replace ("\243", '&#342;', $string);
 439     $string = str_replace ("\245", '&#296;', $string);
 440     $string = str_replace ("\246", '&#315;', $string);
 441     $string = str_replace ("\251", '&#352;', $string);
 442     $string = str_replace ("\252", '&#274;', $string);
 443     $string = str_replace ("\253", '&#290;', $string);
 444     $string = str_replace ("\254", '&#358;', $string);
 445     $string = str_replace ("\256", '&#381;', $string);
 446     $string = str_replace ("\261", '&#261;', $string);
 447     $string = str_replace ("\262", '&#731;', $string);
 448     $string = str_replace ("\263", '&#343;', $string);
 449     $string = str_replace ("\265", '&#297;', $string);
 450     $string = str_replace ("\266", '&#316;', $string);
 451     $string = str_replace ("\267", '&#711;', $string);
 452     $string = str_replace ("\271", '&#353;', $string);
 453     $string = str_replace ("\272", '&#275;', $string);
 454     $string = str_replace ("\273", '&#291;', $string);
 455     $string = str_replace ("\274", '&#359;', $string);
 456     $string = str_replace ("\275", '&#330;', $string);
 457     $string = str_replace ("\276", '&#382;', $string);
 458     $string = str_replace ("\277", '&#331;', $string);
 459     $string = str_replace ("\300", '&#256;', $string);
 460     $string = str_replace ("\307", '&#302;', $string);
 461     $string = str_replace ("\310", '&#268;', $string);
 462     $string = str_replace ("\312", '&#280;', $string);
 463     $string = str_replace ("\314", '&#278;', $string);
 464     $string = str_replace ("\317", '&#298;', $string);
 465     $string = str_replace ("\320", '&#272;', $string);
 466     $string = str_replace ("\321", '&#325;', $string);
 467     $string = str_replace ("\322", '&#332;', $string);
 468     $string = str_replace ("\323", '&#310;', $string);
 469     $string = str_replace ("\331", '&#370;', $string);
 470     $string = str_replace ("\335", '&#360;', $string);
 471     $string = str_replace ("\336", '&#362;', $string);
 472     $string = str_replace ("\340", '&#257;', $string);
 473     $string = str_replace ("\347", '&#303;', $string);
 474     $string = str_replace ("\350", '&#269;', $string);
 475     $string = str_replace ("\352", '&#281;', $string);
 476     $string = str_replace ("\354", '&#279;', $string);
 477     $string = str_replace ("\357", '&#299;', $string);
 478     $string = str_replace ("\360", '&#273;', $string);
 479     $string = str_replace ("\361", '&#326;', $string);
 480     $string = str_replace ("\362", '&#333;', $string);
 481     $string = str_replace ("\363", '&#311;', $string);
 482     $string = str_replace ("\371", '&#371;', $string);
 483     $string = str_replace ("\375", '&#361;', $string);
 484     $string = str_replace ("\376", '&#363;', $string);
 485     $string = str_replace ("\377", '&#729;', $string);
 486
 487     // rest of charset is the same as ISO-8859-1
 488     return (charset_decode_iso_8859_1($string));
 489 }
 490
 491 /* iso-8859-7 is Greek. */
 492 function charset_decode_iso_8859_7 ($string) {
 493     global $default_charset;
 494
 495     if (strtolower($default_charset) == 'iso-8859-7') {
 496         return $string;
 497     }
 498
 499     /* Only do the slow convert if there are 8-bit characters */
 500     if (!ereg("[\200-\377]", $string)) {
 501         return $string;
 502     }
 503
 504     /* Some diverse characters in the beginning */
 505     $string = str_replace("\240", '&#160;', $string);
 506     $string = str_replace("\241", '&#8216;', $string);
 507     $string = str_replace("\242", '&#8217;', $string);
 508     $string = str_replace("\243", '&#163;', $string);
 509     $string = str_replace("\246", '&#166;', $string);
 510     $string = str_replace("\247", '&#167;', $string);
 511     $string = str_replace("\250", '&#168;', $string);
 512     $string = str_replace("\251", '&#169;', $string);
 513     $string = str_replace("\253", '&#171;', $string);
 514     $string = str_replace("\254", '&#172;', $string);
 515     $string = str_replace("\255", '&#173;', $string);
 516     $string = str_replace("\257", '&#8213;', $string);
 517     $string = str_replace("\260", '&#176;', $string);
 518     $string = str_replace("\261", '&#177;', $string);
 519     $string = str_replace("\262", '&#178;', $string);
 520     $string = str_replace("\263", '&#179;', $string);
 521
 522     /* Horizontal bar (parentheki pavla) */
 523     $string = str_replace ("\257", '&#8213;', $string);
 524
 525     /*
 526      * ISO-8859-7 characters from 11/04 (0xB4) to 11/06 (0xB6)
 527      * These are Unicode 900-902
 528      */
 529     $string = preg_replace("/([\264-\266])/e","'&#' . (ord('\\1')+720);",$string);
 530
 531     /* 11/07 (0xB7) Middle dot is the same in iso-8859-1 */
 532     $string = str_replace("\267", '&#183;', $string);
 533
 534     /*
 535      * ISO-8859-7 characters from 11/08 (0xB8) to 11/10 (0xBA)
 536      * These are Unicode 900-902
 537      */
 538     $string = preg_replace("/([\270-\272])/e","'&#' . (ord('\\1')+720);",$string);
 539
 540     /*
 541      * 11/11 (0xBB) Right angle quotation mark is the same as in
 542      * iso-8859-1
 543      */
 544     $string = str_replace("\273", '&#187;', $string);
 545
 546     /* And now the rest of the charset */
 547     $string = preg_replace("/([\274-\376])/e","'&#'.(ord('\\1')+720);",$string);
 548
 549     return $string;
 550 }
 551
 552 /*
 553  ISOIEC 8859-9:1999 Latin Alphabet No. 5
 554 */
 555 function charset_decode_iso_8859_9 ($string) {
 556     global $default_charset, $languages, $sm_notAlias;
 557
 558     if (strtolower($default_charset) == 'iso-8859-9')
 559         return $string;
 560     if (strtolower($languages[$sm_notAlias]['CHARSET']) == 'iso-8859-9')
 561         return $string;
 562
 563     /* Only do the slow convert if there are 8-bit characters */
 564     if (! ereg("[\200-\377]", $string))
 565         return $string;
 566
 567     // latin capital letter g with breve 208->286
 568     $string = str_replace("\320", '&#286;', $string);
 569     // latin capital letter i with dot above 221->304
 570     $string = str_replace("\335", '&#304;', $string);
 571     // latin capital letter s with cedilla 222->350
 572     $string = str_replace("\336", '&#350;', $string);
 573     // latin small letter g with breve 240->287
 574     $string = str_replace("\360", '&#287;', $string);
 575     // latin small letter dotless i 253->305
 576     $string = str_replace("\375", '&#305;', $string);
 577     // latin small letter s with cedilla 254->351
 578     $string = str_replace("\376", '&#351;', $string);
 579
 580     // rest of charset is the same as ISO-8859-1
 581     return (charset_decode_iso_8859_1($string));
 582 }
 583
 584
 585 /*
 586  ISO/IEC 8859-13:1998 Latin Alphabet No. 7 (Baltic Rim)
 587 */
 588 function charset_decode_iso_8859_13 ($string) {
 589     global $default_charset, $languages, $sm_notAlias;
 590
 591     if (strtolower($default_charset) == 'iso-8859-13')
 592         return $string;
 593     if (strtolower($languages[$sm_notAlias]['CHARSET']) == 'iso-8859-13')
 594         return $string;
 595
 596     /* Only do the slow convert if there are 8-bit characters */
 597     if (! ereg("[\200-\377]", $string))
 598         return $string;
 599
 600     $string = str_replace ("\241", '&#8221;', $string);
 601     $string = str_replace ("\245", '&#8222;', $string);
 602     $string = str_replace ("\250", '&#216;', $string);
 603     $string = str_replace ("\252", '&#342;', $string);
 604     $string = str_replace ("\257", '&#198;', $string);
 605     $string = str_replace ("\264", '&#8220;', $string);
 606     $string = str_replace ("\270", '&#248;', $string);
 607     $string = str_replace ("\272", '&#343;', $string);
 608     $string = str_replace ("\277", '&#230;', $string);
 609     $string = str_replace ("\300", '&#260;', $string);
 610     $string = str_replace ("\301", '&#302;', $string);
 611     $string = str_replace ("\302", '&#256;', $string);
 612     $string = str_replace ("\303", '&#262;', $string);
 613     $string = str_replace ("\306", '&#280;', $string);
 614     $string = str_replace ("\307", '&#274;', $string);
 615     $string = str_replace ("\310", '&#268;', $string);
 616     $string = str_replace ("\312", '&#377;', $string);
 617     $string = str_replace ("\313", '&#278;', $string);
 618     $string = str_replace ("\314", '&#290;', $string);
 619     $string = str_replace ("\315", '&#310;', $string);
 620     $string = str_replace ("\316", '&#298;', $string);
 621     $string = str_replace ("\317", '&#315;', $string);
 622     $string = str_replace ("\320", '&#352;', $string);
 623     $string = str_replace ("\321", '&#323;', $string);
 624     $string = str_replace ("\322", '&#325;', $string);
 625     $string = str_replace ("\324", '&#332;', $string);
 626     $string = str_replace ("\330", '&#370;', $string);
 627     $string = str_replace ("\331", '&#321;', $string);
 628     $string = str_replace ("\332", '&#346;', $string);
 629     $string = str_replace ("\333", '&#362;', $string);
 630     $string = str_replace ("\335", '&#379;', $string);
 631     $string = str_replace ("\336", '&#381;', $string);
 632     $string = str_replace ("\340", '&#261;', $string);
 633     $string = str_replace ("\341", '&#303;', $string);
 634     $string = str_replace ("\342", '&#257;', $string);
 635     $string = str_replace ("\343", '&#263;', $string);
 636     $string = str_replace ("\346", '&#281;', $string);
 637     $string = str_replace ("\347", '&#275;', $string);
 638     $string = str_replace ("\350", '&#269;', $string);
 639     $string = str_replace ("\352", '&#378;', $string);
 640     $string = str_replace ("\353", '&#279;', $string);
 641     $string = str_replace ("\354", '&#291;', $string);
 642     $string = str_replace ("\355", '&#311;', $string);
 643     $string = str_replace ("\356", '&#299;', $string);
 644     $string = str_replace ("\357", '&#316;', $string);
 645     $string = str_replace ("\360", '&#353;', $string);
 646     $string = str_replace ("\361", '&#324;', $string);
 647     $string = str_replace ("\362", '&#326;', $string);
 648     $string = str_replace ("\364", '&#333;', $string);
 649     $string = str_replace ("\370", '&#371;', $string);
 650     $string = str_replace ("\371", '&#322;', $string);
 651     $string = str_replace ("\372", '&#347;', $string);
 652     $string = str_replace ("\373", '&#363;', $string);
 653     $string = str_replace ("\375", '&#380;', $string);
 654     $string = str_replace ("\376", '&#382;', $string);
 655     $string = str_replace ("\377", '&#8217;', $string);
 656
 657     // rest of charset is the same as ISO-8859-1
 658     return (charset_decode_iso_8859_1($string));
 659 }
 660
 661 /*
 662  * iso-8859-15 is Latin 9 and has very much the same use as Latin 1
 663  * but has the Euro symbol and some characters needed for French.
 664  */
 665 function charset_decode_iso_8859_15 ($string) {
 666     // Euro sign
 667     $string = str_replace ("\244", '&#8364;', $string);
 668     // Latin capital letter S with caron
 669     $string = str_replace ("\246", '&#352;', $string);
 670     // Latin small letter s with caron
 671     $string = str_replace ("\250", '&#353;', $string);
 672     // Latin capital letter Z with caron
 673     $string = str_replace ("\264", '&#381;', $string);
 674     // Latin small letter z with caron
 675     $string = str_replace ("\270", '&#382;', $string);
 676     // Latin capital ligature OE
 677     $string = str_replace ("\274", '&#338;', $string);
 678     // Latin small ligature oe
 679     $string = str_replace ("\275", '&#339;', $string);
 680     // Latin capital letter Y with diaeresis
 681     $string = str_replace ("\276", '&#376;', $string);
 682
 683     return (charset_decode_iso_8859_1($string));
 684 }
 685
 686 /* ISO-8859-5 is Cyrillic */
 687 function charset_decode_iso_8859_5 ($string) {
 688     // Convert to KOI8-R, then return this decoded.
 689     $string = convert_cyr_string($string, 'i', 'k');
 690     return charset_decode_koi8r($string);
 691 }
 692
 693 /* Remove all 8 bit characters from all other ISO-8859 character sets */
 694 function charset_decode_iso_8859_default ($string) {
 695     return (strtr($string, "\240\241\242\243\244\245\246\247".
 696                     "\250\251\252\253\254\255\256\257".
 697                     "\260\261\262\263\264\265\266\267".
 698                     "\270\271\272\273\274\275\276\277".
 699                     "\300\301\302\303\304\305\306\307".
 700                     "\310\311\312\313\314\315\316\317".
 701                     "\320\321\322\323\324\325\326\327".
 702                     "\330\331\332\333\334\335\336\337".
 703                     "\340\341\342\343\344\345\346\347".
 704                     "\350\351\352\353\354\355\356\357".
 705                     "\360\361\362\363\364\365\366\367".
 706                     "\370\371\372\373\374\375\376\377",
 707                     "????????????????????????????????????????".
 708                     "????????????????????????????????????????".
 709                     "????????????????????????????????????????".
 710                     "????????"));
 711
 712 }
 713
 714 /*
 715  * This is the same as ISO-646-NO and is used by some
 716  * Microsoft programs when sending Norwegian characters
 717  */
 718 function charset_decode_ns_4551_1 ($string) {
 719     /*
 720      * These characters are:
 721      * Latin capital letter AE
 722      * Latin capital letter O with stroke
 723      * Latin capital letter A with ring above
 724      * and the same as small letters
 725      */
 726     return strtr ($string, "[\\]{|}", "ÆØÅæøå");
 727 }
 728
 729 /*
 730  * KOI8-R is used to encode Russian mail (Cyrrilic). Defined in RFC
 731  * 1489.
 732  */
 733 function charset_decode_koi8r ($string) {
 734     global $default_charset;
 735
 736     if ($default_charset == 'koi8-r') {
 737         return $string;
 738     }
 739
 740     /*
 741      * Convert to Unicode HTML entities.
 742      * This code is rather ineffective.
 743      */
 744     $string = str_replace("\200", '&#9472;', $string);
 745     $string = str_replace("\201", '&#9474;', $string);
 746     $string = str_replace("\202", '&#9484;', $string);
 747     $string = str_replace("\203", '&#9488;', $string);
 748     $string = str_replace("\204", '&#9492;', $string);
 749     $string = str_replace("\205", '&#9496;', $string);
 750     $string = str_replace("\206", '&#9500;', $string);
 751     $string = str_replace("\207", '&#9508;', $string);
 752     $string = str_replace("\210", '&#9516;', $string);
 753     $string = str_replace("\211", '&#9524;', $string);
 754     $string = str_replace("\212", '&#9532;', $string);
 755     $string = str_replace("\213", '&#9600;', $string);
 756     $string = str_replace("\214", '&#9604;', $string);
 757     $string = str_replace("\215", '&#9608;', $string);
 758     $string = str_replace("\216", '&#9612;', $string);
 759     $string = str_replace("\217", '&#9616;', $string);
 760     $string = str_replace("\220", '&#9617;', $string);
 761     $string = str_replace("\221", '&#9618;', $string);
 762     $string = str_replace("\222", '&#9619;', $string);
 763     $string = str_replace("\223", '&#8992;', $string);
 764     $string = str_replace("\224", '&#9632;', $string);
 765     $string = str_replace("\225", '&#8729;', $string);
 766     $string = str_replace("\226", '&#8730;', $string);
 767     $string = str_replace("\227", '&#8776;', $string);
 768     $string = str_replace("\230", '&#8804;', $string);
 769     $string = str_replace("\231", '&#8805;', $string);
 770     $string = str_replace("\232", '&#160;', $string);
 771     $string = str_replace("\233", '&#8993;', $string);
 772     $string = str_replace("\234", '&#176;', $string);
 773     $string = str_replace("\235", '&#178;', $string);
 774     $string = str_replace("\236", '&#183;', $string);
 775     $string = str_replace("\237", '&#247;', $string);
 776     $string = str_replace("\240", '&#9552;', $string);
 777     $string = str_replace("\241", '&#9553;', $string);
 778     $string = str_replace("\242", '&#9554;', $string);
 779     $string = str_replace("\243", '&#1105;', $string);
 780     $string = str_replace("\244", '&#9555;', $string);
 781     $string = str_replace("\245", '&#9556;', $string);
 782     $string = str_replace("\246", '&#9557;', $string);
 783     $string = str_replace("\247", '&#9558;', $string);
 784     $string = str_replace("\250", '&#9559;', $string);
 785     $string = str_replace("\251", '&#9560;', $string);
 786     $string = str_replace("\252", '&#9561;', $string);
 787     $string = str_replace("\253", '&#9562;', $string);
 788     $string = str_replace("\254", '&#9563;', $string);
 789     $string = str_replace("\255", '&#9564;', $string);
 790     $string = str_replace("\256", '&#9565;', $string);
 791     $string = str_replace("\257", '&#9566;', $string);
 792     $string = str_replace("\260", '&#9567;', $string);
 793     $string = str_replace("\261", '&#9568;', $string);
 794     $string = str_replace("\262", '&#9569;', $string);
 795     $string = str_replace("\263", '&#1025;', $string);
 796     $string = str_replace("\264", '&#9570;', $string);
 797     $string = str_replace("\265", '&#9571;', $string);
 798     $string = str_replace("\266", '&#9572;', $string);
 799     $string = str_replace("\267", '&#9573;', $string);
 800     $string = str_replace("\270", '&#9574;', $string);
 801     $string = str_replace("\271", '&#9575;', $string);
 802     $string = str_replace("\272", '&#9576;', $string);
 803     $string = str_replace("\273", '&#9577;', $string);
 804     $string = str_replace("\274", '&#9578;', $string);
 805     $string = str_replace("\275", '&#9579;', $string);
 806     $string = str_replace("\276", '&#9580;', $string);
 807     $string = str_replace("\277", '&#169;', $string);
 808     $string = str_replace("\300", '&#1102;', $string);
 809     $string = str_replace("\301", '&#1072;', $string);
 810     $string = str_replace("\302", '&#1073;', $string);
 811     $string = str_replace("\303", '&#1094;', $string);
 812     $string = str_replace("\304", '&#1076;', $string);
 813     $string = str_replace("\305", '&#1077;', $string);
 814     $string = str_replace("\306", '&#1092;', $string);
 815     $string = str_replace("\307", '&#1075;', $string);
 816     $string = str_replace("\310", '&#1093;', $string);
 817     $string = str_replace("\311", '&#1080;', $string);
 818     $string = str_replace("\312", '&#1081;', $string);
 819     $string = str_replace("\313", '&#1082;', $string);
 820     $string = str_replace("\314", '&#1083;', $string);
 821     $string = str_replace("\315", '&#1084;', $string);
 822     $string = str_replace("\316", '&#1085;', $string);
 823     $string = str_replace("\317", '&#1086;', $string);
 824     $string = str_replace("\320", '&#1087;', $string);
 825     $string = str_replace("\321", '&#1103;', $string);
 826     $string = str_replace("\322", '&#1088;', $string);
 827     $string = str_replace("\323", '&#1089;', $string);
 828     $string = str_replace("\324", '&#1090;', $string);
 829     $string = str_replace("\325", '&#1091;', $string);
 830     $string = str_replace("\326", '&#1078;', $string);
 831     $string = str_replace("\327", '&#1074;', $string);
 832     $string = str_replace("\330", '&#1100;', $string);
 833     $string = str_replace("\331", '&#1099;', $string);
 834     $string = str_replace("\332", '&#1079;', $string);
 835     $string = str_replace("\333", '&#1096;', $string);
 836     $string = str_replace("\334", '&#1101;', $string);
 837     $string = str_replace("\335", '&#1097;', $string);
 838     $string = str_replace("\336", '&#1095;', $string);
 839     $string = str_replace("\337", '&#1098;', $string);
 840     $string = str_replace("\340", '&#1070;', $string);
 841     $string = str_replace("\341", '&#1040;', $string);
 842     $string = str_replace("\342", '&#1041;', $string);
 843     $string = str_replace("\343", '&#1062;', $string);
 844     $string = str_replace("\344", '&#1044;', $string);
 845     $string = str_replace("\345", '&#1045;', $string);
 846     $string = str_replace("\346", '&#1060;', $string);
 847     $string = str_replace("\347", '&#1043;', $string);
 848     $string = str_replace("\350", '&#1061;', $string);
 849     $string = str_replace("\351", '&#1048;', $string);
 850     $string = str_replace("\352", '&#1049;', $string);
 851     $string = str_replace("\353", '&#1050;', $string);
 852     $string = str_replace("\354", '&#1051;', $string);
 853     $string = str_replace("\355", '&#1052;', $string);
 854     $string = str_replace("\356", '&#1053;', $string);
 855     $string = str_replace("\357", '&#1054;', $string);
 856     $string = str_replace("\360", '&#1055;', $string);
 857     $string = str_replace("\361", '&#1071;', $string);
 858     $string = str_replace("\362", '&#1056;', $string);
 859     $string = str_replace("\363", '&#1057;', $string);
 860     $string = str_replace("\364", '&#1058;', $string);
 861     $string = str_replace("\365", '&#1059;', $string);
 862     $string = str_replace("\366", '&#1046;', $string);
 863     $string = str_replace("\367", '&#1042;', $string);
 864     $string = str_replace("\370", '&#1068;', $string);
 865     $string = str_replace("\371", '&#1067;', $string);
 866     $string = str_replace("\372", '&#1047;', $string);
 867     $string = str_replace("\373", '&#1064;', $string);
 868     $string = str_replace("\374", '&#1069;', $string);
 869     $string = str_replace("\375", '&#1065;', $string);
 870     $string = str_replace("\376", '&#1063;', $string);
 871     $string = str_replace("\377", '&#1066;', $string);
 872
 873     return $string;
 874 }
 875
 876 /*
 877  windows-1254 (Turks)
 878  */
 879 function charset_decode_windows_1254 ($string) {
 880     global $default_charset, $languages, $sm_notAlias;
 881
 882     if (strtolower($default_charset) == 'windows-1254')
 883         return $string;
 884     if (strtolower($languages[$sm_notAlias]['CHARSET']) == 'windows-1254')
 885         return $string;
 886
 887     /* Only do the slow convert if there are 8-bit characters */
 888     if (! ereg("[\200-\377]", $string))
 889         return $string;
 890
 891     // Euro sign 128 -> 8364
 892     $string = str_replace("\200", '&#8364;', $string);
 893     // Single low-9 quotation mark 130 -> 8218
 894     $string = str_replace("\202", '&#8218;', $string);
 895     // latin small letter f with hook 131 -> 402
 896     $string = str_replace("\203", '&#402;', $string);
 897     // Double low-9 quotation mark 132 -> 8222
 898     $string = str_replace("\204", '&#8222;', $string);
 899     // horizontal ellipsis 133 -> 8230
 900     $string = str_replace("\205", '&#8230;', $string);
 901     // dagger 134 -> 8224
 902     $string = str_replace("\206", '&#8224;', $string);
 903     // double dagger 135 -> 8225
 904     $string = str_replace("\207", '&#8225;', $string);
 905     // modifier letter circumflex accent 136->710
 906     $string = str_replace("\210", '&#710;', $string);
 907     // per mille sign 137 -> 8240
 908     $string = str_replace("\211", '&#8240;', $string);
 909     // latin capital letter s with caron 138 -> 352
 910     $string = str_replace("\212", '&#352;', $string);
 911     // single left-pointing angle quotation mark 139 -> 8249
 912     $string = str_replace("\213", '&#8249;', $string);
 913     // latin capital ligature oe 140 -> 338
 914     $string = str_replace("\214", '&#338;', $string);
 915     // left single quotation mark 145 -> 8216
 916     $string = str_replace("\221", '&#8216;', $string);
 917     // right single quotation mark 146 -> 8217
 918     $string = str_replace("\222", '&#8217;', $string);
 919     // left double quotation mark 147 -> 8220
 920     $string = str_replace("\223", '&#8220;', $string);
 921     // right double quotation mark 148 -> 8221
 922     $string = str_replace("\224", '&#8221;', $string);
 923     // bullet 149 -> 8226
 924     $string = str_replace("\225", '&#8226;', $string);
 925     // en dash 150 -> 8211
 926     $string = str_replace("\226", '&#8211;', $string);
 927     // em dash 151 -> 8212
 928     $string = str_replace("\227", '&#8212;', $string);
 929     // small tilde 152 -> 732
 930     $string = str_replace("\230", '&#732;', $string);
 931     // trade mark sign 153 -> 8482
 932     $string = str_replace("\231", '&#8482;', $string);
 933     // latin small letter s with caron 154 -> 353
 934     $string = str_replace("\232", '&#353;', $string);
 935     // single right-pointing angle quotation mark 155 -> 8250
 936     $string = str_replace("\233", '&#8250;', $string);
 937     // latin small ligature oe 156 -> 339
 938     $string = str_replace("\234", '&#339;', $string);
 939     // latin capital letter y with diaresis 159->376
 940     $string = str_replace("\237", '&#376;', $string);
 941     // latin capital letter g with breve 208->286
 942     $string = str_replace("\320", '&#286;', $string);
 943     // latin capital letter i with dot above 221->304
 944     $string = str_replace("\335", '&#304;', $string);
 945     // latin capital letter s with cedilla 222->350
 946     $string = str_replace("\336", '&#350;', $string);
 947     // latin small letter g with breve 240->287
 948     $string = str_replace("\360", '&#287;', $string);
 949     // latin small letter dotless i 253->305
 950     $string = str_replace("\375", '&#305;', $string);
 951     // latin small letter s with cedilla 254->351
 952     $string = str_replace("\376", '&#351;', $string);
 953
 954     // Rest of charset is like iso-8859-1
 955     return (charset_decode_iso_8859_1($string));
 956 }
 957
 958 /*
 959  windows-1253 (Greek)
 960  */
 961 function charset_decode_windows_1253 ($string) {
 962     global $languages, $sm_notAlias;
 963
 964     if (strtolower($languages[$sm_notAlias]['CHARSET']) == 'windows-1253')
 965         return $string;
 966
 967     /* Only do the slow convert if there are 8-bit characters */
 968     if (! ereg("[\200-\377]", $string))
 969         return $string;
 970
 971     $string = str_replace("\200", '&#8364;', $string);
 972     $string = str_replace("\202", '&#8218;', $string);
 973     $string = str_replace("\203", '&#402;', $string);
 974     $string = str_replace("\204", '&#8222;', $string);
 975     $string = str_replace("\205", '&#8230;', $string);
 976     $string = str_replace("\206", '&#8224;', $string);
 977     $string = str_replace("\207", '&#8225;', $string);
 978     $string = str_replace("\211", '&#8240;', $string);
 979     $string = str_replace("\213", '&#8249;', $string);
 980     $string = str_replace("\221", '&#8216;', $string);
 981     $string = str_replace("\222", '&#8217;', $string);
 982     $string = str_replace("\223", '&#8220;', $string);
 983     $string = str_replace("\224", '&#8221;', $string);
 984     $string = str_replace("\225", '&#8226;', $string);
 985     $string = str_replace("\226", '&#8211;', $string);
 986     $string = str_replace("\227", '&#8212;', $string);
 987     $string = str_replace("\231", '&#8482;', $string);
 988     $string = str_replace("\233", '&#8250;', $string);
 989     $string = str_replace("\241", '&#901;', $string);
 990     $string = str_replace("\242", '&#902;', $string);
 991     $string = str_replace ("\257", '&#8213;', $string);
 992     $string = str_replace("\264", '&#900;', $string);
 993     $string = str_replace("\270", '&#904;', $string);
 994     $string = str_replace ("\271", '&#905;', $string);
 995     $string = str_replace ("\272", '&#906;', $string);
 996     $string = str_replace ("\274", '&#908;', $string);
 997     // cycle for 190-254 symbols
 998     $string = preg_replace("/([\274-\376])/e","'&#' . (ord('\\1')+720);",$string);
 999
1000     // Rest of charset is like iso-8859-1
1001     return (charset_decode_iso_8859_1($string));
1002 }
1003
1004
1005 /*
1006  windows-1257 (BaltRim)
1007  */
1008 function charset_decode_windows_1257 ($string) {
1009     global $default_charset, $languages, $sm_notAlias;
1010
1011     if (strtolower($default_charset) == 'windows-1257')
1012         return $string;
1013     if (strtolower($languages[$sm_notAlias]['CHARSET']) == 'windows-1257')
1014         return $string;
1015
1016     /* Only do the slow convert if there are 8-bit characters */
1017     if (! ereg("[\200-\377]", $string))
1018         return $string;
1019
1020     $string = str_replace("\200", '&#8364;', $string);
1021     $string = str_replace("\202", '&#8218;', $string);
1022     $string = str_replace("\204", '&#8222;', $string);
1023     $string = str_replace("\205", '&#8230;', $string);
1024     $string = str_replace("\206", '&#8224;', $string);
1025     $string = str_replace("\207", '&#8225;', $string);
1026     $string = str_replace("\211", '&#8240;', $string);
1027     $string = str_replace("\213", '&#8249;', $string);
1028     $string = str_replace("\215", '&#168;', $string);
1029     $string = str_replace("\216", '&#711;', $string);
1030     $string = str_replace("\217", '&#184;', $string);
1031     $string = str_replace("\221", '&#8216;', $string);
1032     $string = str_replace("\222", '&#8217;', $string);
1033     $string = str_replace("\223", '&#8220;', $string);
1034     $string = str_replace("\224", '&#8221;', $string);
1035     $string = str_replace("\225", '&#8226;', $string);
1036     $string = str_replace("\226", '&#8211;', $string);
1037     $string = str_replace("\227", '&#8212;', $string);
1038     $string = str_replace("\231", '&#8482;', $string);
1039     $string = str_replace("\233", '&#8250;', $string);
1040     $string = str_replace("\235", '&#175;', $string);
1041     $string = str_replace("\236", '&#731;', $string);
1042     $string = str_replace ("\250", '&#216;', $string);
1043     $string = str_replace ("\252", '&#342;', $string);
1044     $string = str_replace ("\257", '&#198;', $string);
1045     $string = str_replace ("\270", '&#248;', $string);
1046     $string = str_replace ("\272", '&#343;', $string);
1047     $string = str_replace ("\277", '&#230;', $string);
1048     $string = str_replace ("\300", '&#260;', $string);
1049     $string = str_replace ("\301", '&#302;', $string);
1050     $string = str_replace ("\302", '&#256;', $string);
1051     $string = str_replace ("\303", '&#262;', $string);
1052     $string = str_replace ("\306", '&#280;', $string);
1053     $string = str_replace ("\307", '&#274;', $string);
1054     $string = str_replace ("\310", '&#268;', $string);
1055     $string = str_replace ("\312", '&#377;', $string);
1056     $string = str_replace ("\313", '&#278;', $string);
1057     $string = str_replace ("\314", '&#290;', $string);
1058     $string = str_replace ("\315", '&#310;', $string);
1059     $string = str_replace ("\316", '&#298;', $string);
1060     $string = str_replace ("\317", '&#315;', $string);
1061     $string = str_replace ("\320", '&#352;', $string);
1062     $string = str_replace ("\321", '&#323;', $string);
1063     $string = str_replace ("\322", '&#325;', $string);
1064     $string = str_replace ("\324", '&#332;', $string);
1065     $string = str_replace ("\330", '&#370;', $string);
1066     $string = str_replace ("\331", '&#321;', $string);
1067     $string = str_replace ("\332", '&#340;', $string);
1068     $string = str_replace ("\333", '&#362;', $string);
1069     $string = str_replace ("\335", '&#379;', $string);
1070     $string = str_replace ("\336", '&#381;', $string);
1071     $string = str_replace ("\340", '&#261;', $string);
1072     $string = str_replace ("\341", '&#303;', $string);
1073     $string = str_replace ("\342", '&#257;', $string);
1074     $string = str_replace ("\343", '&#263;', $string);
1075     $string = str_replace ("\346", '&#281;', $string);
1076     $string = str_replace ("\347", '&#275;', $string);
1077     $string = str_replace ("\350", '&#269;', $string);
1078     $string = str_replace ("\352", '&#378;', $string);
1079     $string = str_replace ("\353", '&#279;', $string);
1080     $string = str_replace ("\354", '&#291;', $string);
1081     $string = str_replace ("\355", '&#311;', $string);
1082     $string = str_replace ("\356", '&#299;', $string);
1083     $string = str_replace ("\357", '&#316;', $string);
1084     $string = str_replace ("\360", '&#353;', $string);
1085     $string = str_replace ("\361", '&#324;', $string);
1086     $string = str_replace ("\362", '&#326;', $string);
1087     $string = str_replace ("\364", '&#333;', $string);
1088     $string = str_replace ("\370", '&#371;', $string);
1089     $string = str_replace ("\371", '&#322;', $string);
1090     $string = str_replace ("\372", '&#347;', $string);
1091     $string = str_replace ("\373", '&#363;', $string);
1092     $string = str_replace ("\375", '&#380;', $string);
1093     $string = str_replace ("\376", '&#382;', $string);
1094     $string = str_replace ("\377", '&#729;', $string);
1095
1096     // Rest of charset is like iso-8859-1
1097     return (charset_decode_iso_8859_1($string));
1098 }
1099
1100 /* windows-1251 is Microsoft Cyrillic encoding */
1101 function charset_decode_windows_1251 ($string) {
1102     // Convert to KOI8-R, then return this decoded.
1103     $string = convert_cyr_string($string, 'w', 'k');
1104     return charset_decode_koi8r($string);
1105 }
1106
1107
1108
1109 /*
1110  * Set up the language to be output
1111  * if $do_search is true, then scan the browser information
1112  * for a possible language that we know
1113  */
1114 function set_up_language($sm_language, $do_search = false) {
1115
1116     static $SetupAlready = 0;
1117     global $use_gettext, $languages,
1118            $squirrelmail_language, $squirrelmail_default_language,
1119            $sm_notAlias;
1120
1121     if ($SetupAlready) {
1122         return;
1123     }
1124
1125     $SetupAlready = TRUE;
1126
1127     if ($do_search && ! $sm_language && isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
1128         $sm_language = substr($_SERVER['HTTP_ACCEPT_LANGUAGE'], 0, 2);
1129     }
1130
1131     if (!$sm_language && isset($squirrelmail_default_language)) {
1132         $squirrelmail_language = $squirrelmail_default_language;
1133         $sm_language = $squirrelmail_default_language;
1134     }
1135     $sm_notAlias = $sm_language;
1136     while (isset($languages[$sm_notAlias]['ALIAS'])) {
1137         $sm_notAlias = $languages[$sm_notAlias]['ALIAS'];
1138     }
1139
1140     if ( isset($sm_language) &&
1141          $use_gettext &&
1142          $sm_language != '' &&
1143          isset($languages[$sm_notAlias]['CHARSET']) ) {
1144         bindtextdomain( 'squirrelmail', SM_PATH . 'locale/' );
1145         textdomain( 'squirrelmail' );
1146         if ( !ini_get('safe_mode') &&
1147              getenv( 'LC_ALL' ) != $sm_notAlias ) {
1148             putenv( "LC_ALL=$sm_notAlias" );
1149             putenv( "LANG=$sm_notAlias" );
1150             putenv( "LANGUAGE=$sm_notAlias" );
1151         }
1152         setlocale(LC_ALL, $sm_notAlias);
1153         $squirrelmail_language = $sm_notAlias;
1154         if ($squirrelmail_language == 'ja_JP' && function_exists('mb_detect_encoding') ) {
1155             header ('Content-Type: text/html; charset=EUC-JP');
1156             if (!function_exists('mb_internal_encoding')) {
1157                 echo _("You need to have php4 installed with the multibyte string function enabled (using configure option --with-mbstring).");
1158             }
1159             mb_internal_encoding('EUC-JP');
1160             mb_http_output('pass');
1161         } else {
1162         header( 'Content-Type: text/html; charset=' . $languages[$sm_notAlias]['CHARSET'] );
1163     }
1164 }
1165 }
1166
1167 function set_my_charset(){
1168
1169     /*
1170      * There can be a $default_charset setting in the
1171      * config.php file, but the user may have a different language
1172      * selected for a user interface. This function checks the
1173      * language selected by the user and tags the outgoing messages
1174      * with the appropriate charset corresponding to the language
1175      * selection. This is "more right" (tm), than just stamping the
1176      * message blindly with the system-wide $default_charset.
1177      */
1178     global $data_dir, $username, $default_charset, $languages;
1179
1180     $my_language = getPref($data_dir, $username, 'language');
1181     if (!$my_language) {
1182         return;
1183     }
1184     while (isset($languages[$my_language]['ALIAS'])) {
1185         $my_language = $languages[$my_language]['ALIAS'];
1186     }
1187     $my_charset = $languages[$my_language]['CHARSET'];
1188     if ($my_charset) {
1189         $default_charset = $my_charset;
1190     }
1191 }
1192
1193 /* ------------------------------ main --------------------------- */
1194
1195 global $squirrelmail_language, $languages, $use_gettext;
1196
1197 if (! isset($squirrelmail_language)) {
1198     $squirrelmail_language = '';
1199 }
1200
1201 /* This array specifies the available languages. */
1202
1203 // The glibc locale is ca_ES.
1204
1205 $languages['ca_ES']['NAME']    = 'Catalan';
1206 $languages['ca_ES']['CHARSET'] = 'iso-8859-1';
1207 $languages['ca']['ALIAS'] = 'ca_ES';
1208
1209 $languages['cs_CZ']['NAME']    = 'Czech';
1210 $languages['cs_CZ']['CHARSET'] = 'iso-8859-2';
1211 $languages['cs']['ALIAS']      = 'cs_CZ';
1212
1213 // Danish locale is da_DK.
1214
1215 $languages['da_DK']['NAME']    = 'Danish';
1216 $languages['da_DK']['CHARSET'] = 'iso-8859-1';
1217 $languages['da']['ALIAS'] = 'da_DK';
1218
1219 $languages['de_DE']['NAME']    = 'Deutsch';
1220 $languages['de_DE']['CHARSET'] = 'iso-8859-1';
1221 $languages['de']['ALIAS'] = 'de_DE';
1222
1223 // There is no en_EN! There is en_US, en_BR, en_AU, and so forth,
1224 // but who cares about !US, right? Right? :)
1225
1226 $languages['el_GR']['NAME']    = 'Greek';
1227 $languages['el_GR']['CHARSET'] = 'iso-8859-7';
1228 $languages['el']['ALIAS'] = 'el_GR';
1229
1230 $languages['en_US']['NAME']    = 'English';
1231 $languages['en_US']['CHARSET'] = 'iso-8859-1';
1232 $languages['en']['ALIAS'] = 'en_US';
1233
1234 $languages['es_ES']['NAME']    = 'Spanish';
1235 $languages['es_ES']['CHARSET'] = 'iso-8859-1';
1236 $languages['es']['ALIAS'] = 'es_ES';
1237
1238 $languages['et_EE']['NAME']    = 'Estonian';
1239 $languages['et_EE']['CHARSET'] = 'iso-8859-15';
1240 $languages['et']['ALIAS'] = 'et_EE';
1241
1242 $languages['fi_FI']['NAME']    = 'Finnish';
1243 $languages['fi_FI']['CHARSET'] = 'iso-8859-1';
1244 $languages['fi']['ALIAS'] = 'fi_FI';
1245
1246 $languages['fr_FR']['NAME']    = 'French';
1247 $languages['fr_FR']['CHARSET'] = 'iso-8859-1';
1248 $languages['fr']['ALIAS'] = 'fr_FR';
1249
1250 $languages['hr_HR']['NAME']    = 'Croatian';
1251 $languages['hr_HR']['CHARSET'] = 'iso-8859-2';
1252 $languages['hr']['ALIAS'] = 'hr_HR';
1253
1254 $languages['hu_HU']['NAME']    = 'Hungarian';
1255 $languages['hu_HU']['CHARSET'] = 'iso-8859-2';
1256 $languages['hu']['ALIAS'] = 'hu_HU';
1257
1258 $languages['id_ID']['NAME']    = 'Indonesian';
1259 $languages['id_ID']['CHARSET'] = 'iso-8859-1';
1260 $languages['id']['ALIAS'] = 'id_ID';
1261
1262 $languages['is_IS']['NAME']    = 'Icelandic';
1263 $languages['is_IS']['CHARSET'] = 'iso-8859-1';
1264 $languages['is']['ALIAS'] = 'is_IS';
1265
1266 $languages['it_IT']['NAME']    = 'Italian';
1267 $languages['it_IT']['CHARSET'] = 'iso-8859-1';
1268 $languages['it']['ALIAS'] = 'it_IT';
1269
1270 $languages['ja_JP']['NAME']    = 'Japanese';
1271 $languages['ja_JP']['CHARSET'] = 'iso-2022-jp';
1272 $languages['ja_JP']['XTRA_CODE'] = 'japanese_charset_xtra';
1273 $languages['ja']['ALIAS'] = 'ja_JP';
1274
1275 $languages['ko_KR']['NAME']    = 'Korean';
1276 $languages['ko_KR']['CHARSET'] = 'euc-KR';
1277 $languages['ko_KR']['XTRA_CODE'] = 'korean_charset_xtra';
1278 $languages['ko']['ALIAS'] = 'ko_KR';
1279
1280 $languages['nl_NL']['NAME']    = 'Dutch';
1281 $languages['nl_NL']['CHARSET'] = 'iso-8859-1';
1282 $languages['nl']['ALIAS'] = 'nl_NL';
1283
1284 $languages['no_NO']['NAME']    = 'Norwegian (Bokm&aring;l)';
1285 $languages['no_NO']['CHARSET'] = 'iso-8859-1';
1286 $languages['no']['ALIAS'] = 'no_NO';
1287 $languages['nn_NO']['NAME']    = 'Norwegian (Nynorsk)';
1288 $languages['nn_NO']['CHARSET'] = 'iso-8859-1';
1289
1290 $languages['pl_PL']['NAME']    = 'Polish';
1291 $languages['pl_PL']['CHARSET'] = 'iso-8859-2';
1292 $languages['pl']['ALIAS'] = 'pl_PL';
1293
1294 $languages['pt_PT']['NAME'] = 'Portuguese (Portugal)';
1295 $languages['pt_PT']['CHARSET'] = 'iso-8859-1';
1296 $languages['pt_BR']['NAME']    = 'Portuguese (Brazil)';
1297 $languages['pt_BR']['CHARSET'] = 'iso-8859-1';
1298 $languages['pt']['ALIAS'] = 'pt_PT';
1299
1300 $languages['ru_RU']['NAME']    = 'Russian';
1301 $languages['ru_RU']['CHARSET'] = 'koi8-r';
1302 $languages['ru']['ALIAS'] = 'ru_RU';
1303
1304 $languages['sr_YU']['NAME']    = 'Serbian';
1305 $languages['sr_YU']['CHARSET'] = 'iso-8859-2';
1306 $languages['sr']['ALIAS'] = 'sr_YU';
1307
1308 $languages['sv_SE']['NAME']    = 'Swedish';
1309 $languages['sv_SE']['CHARSET'] = 'iso-8859-1';
1310 $languages['sv']['ALIAS'] = 'sv_SE';
1311
1312 $languages['tr_TR']['NAME']    = 'Turkish';
1313 $languages['tr_TR']['CHARSET'] = 'iso-8859-9';
1314 $languages['tr']['ALIAS'] = 'tr_TR';
1315
1316 $languages['zh_TW']['NAME']    = 'Chinese Trad';
1317 $languages['zh_TW']['CHARSET'] = 'big5';
1318 $languages['tw']['ALIAS'] = 'zh_TW';
1319
1320 $languages['zh_CN']['NAME']    = 'Chinese Simp';
1321 $languages['zh_CN']['CHARSET'] = 'gb2312';
1322 $languages['cn']['ALIAS'] = 'zh_CN';
1323
1324 $languages['sk_SK']['NAME']     = 'Slovak';
1325 $languages['sk_SK']['CHARSET']  = 'iso-8859-2';
1326 $languages['sk']['ALIAS']       = 'sk_SK';
1327
1328 $languages['ro_RO']['NAME']    = 'Romanian';
1329 $languages['ro_RO']['CHARSET'] = 'iso-8859-2';
1330 $languages['ro']['ALIAS'] = 'ro_RO';
1331
1332 $languages['th_TH']['NAME']    = 'Thai';
1333 $languages['th_TH']['CHARSET'] = 'tis-620';
1334 $languages['th']['ALIAS'] = 'th_TH';
1335
1336 $languages['lt_LT']['NAME']    = 'Lithuanian';
1337 $languages['lt_LT']['CHARSET'] = 'windows-1257';
1338 $languages['lt']['ALIAS'] = 'lt_LT';
1339
1340 $languages['sl_SI']['NAME']    = 'Slovenian';
1341 $languages['sl_SI']['CHARSET'] = 'iso-8859-2';
1342 $languages['sl']['ALIAS'] = 'sl_SI';
1343
1344 $languages['bg_BG']['NAME']    = 'Bulgarian';
1345 $languages['bg_BG']['CHARSET'] = 'windows-1251';
1346 $languages['bg']['ALIAS'] = 'bg_BG';
1347
1348 $languages['uk_UA']['NAME']    = 'Ukrainian';
1349 $languages['uk_UA']['CHARSET'] = 'koi8-u';
1350 $languages['uk']['ALIAS'] = 'uk_UA';
1351
1352 // Right to left languages
1353
1354 $languages['he_HE']['NAME']    = 'Hebrew';
1355 $languages['he_HE']['CHARSET'] = 'windows-1255';
1356 $languages['he_HE']['DIR']     = 'rtl';
1357 $languages['he']['ALIAS']      = 'he_HE';
1358
1359
1360 /* Detect whether gettext is installed. */
1361 $gettext_flags = 0;
1362 if (function_exists('_')) {
1363     $gettext_flags += 1;
1364 }
1365 if (function_exists('bindtextdomain')) {
1366     $gettext_flags += 2;
1367 }
1368 if (function_exists('textdomain')) {
1369     $gettext_flags += 4;
1370 }
1371
1372 /* If gettext is fully loaded, cool */
1373 if ($gettext_flags == 7) {
1374     $use_gettext = true;
1375 }
1376 /* If we can fake gettext, try that */
1377 elseif ($gettext_flags == 0) {
1378     $use_gettext = true;
1379     include_once(SM_PATH . 'functions/gettext.php');
1380 } else {
1381     /* Uh-ho.  A weird install */
1382     if (! $gettext_flags & 1) {
1383         function _($str) {
1384             return $str;
1385         }
1386     }
1387     if (! $gettext_flags & 2) {
1388         function bindtextdomain() {
1389             return;
1390         }
1391     }
1392     if (! $gettext_flags & 4) {
1393         function textdomain() {
1394             return;
1395         }
1396     }
1397 }
1398
1399 function charset_decode_utf8 ($string) {
1400 /*
1401     Every decoded character consists of n bytes. First byte is octal
1402     300-375, other bytes - always octals 200-277.
1403
1404     \a\b characters are decoded to html code octdec(a-300)*64 + octdec(b-200)
1405     \a\b\c characters are decoded to html code octdec(a-340)*64*64 + octdec(b-200)*64 + octdec(c-200)
1406
1407     decoding cycle is unfinished. please test and report problems to tokul@users.sourceforge.net
1408 */
1409     global $default_charset, $languages, $sm_notAlias;
1410
1411     if (strtolower($default_charset) == 'utf-8')
1412         return $string;
1413     if (strtolower($languages[$sm_notAlias]['CHARSET']) == 'utf-8')
1414         return $string;
1415
1416     /* Only do the slow convert if there are 8-bit characters */
1417     if (! ereg("[\200-\377]", $string))
1418         return $string;
1419
1420     // decode three byte unicode characters
1421     $string = preg_replace("/([\340-\357])([\200-\277])([\200-\277])/e",
1422     "'&#'.((ord('\\1')-224)*4096+(ord('\\2')-128)*64+(ord('\\3')-128)).';'",
1423     $string);
1424
1425     // decode two byte unicode characters
1426     $string = preg_replace("/([\300-\337])([\200-\277])/e",
1427     "'&#'.((ord('\\1')-192)*64+(ord('\\2')-128)).';'",
1428     $string);
1429
1430     return $string;
1431 }
1432
1433 /*
1434  * Japanese charset extra function
1435  *
1436  */
1437 function japanese_charset_xtra() {
1438     $ret = func_get_arg(1);  /* default return value */
1439     if (function_exists('mb_detect_encoding')) {
1440         switch (func_get_arg(0)) { /* action */
1441         case 'decode':
1442             $detect_encoding = mb_detect_encoding($ret);
1443             if ($detect_encoding == 'JIS' ||
1444                 $detect_encoding == 'EUC-JP' ||
1445                 $detect_encoding == 'SJIS') {
1446
1447                 $ret = mb_convert_encoding($ret, 'EUC-JP', 'AUTO');
1448             }
1449             break;
1450         case 'encode':
1451             $detect_encoding = mb_detect_encoding($ret);
1452             if ($detect_encoding == 'JIS' ||
1453                 $detect_encoding == 'EUC-JP' ||
1454                 $detect_encoding == 'SJIS') {
1455
1456                 $ret = mb_convert_encoding($ret, 'JIS', 'AUTO');
1457             }
1458             break;
1459         case 'strimwidth':
1460             $width = func_get_arg(2);
1461             $ret = mb_strimwidth($ret, 0, $width, '...');
1462             break;
1463         case 'encodeheader':
1464             $result = '';
1465             if (strlen($ret) > 0) {
1466                 $tmpstr = mb_substr($ret, 0, 1);
1467                 $prevcsize = strlen($tmpstr);
1468                 for ($i = 1; $i < mb_strlen($ret); $i++) {
1469                     $tmp = mb_substr($ret, $i, 1);
1470                     if (strlen($tmp) == $prevcsize) {
1471                         $tmpstr .= $tmp;
1472                     } else {
1473                         if ($prevcsize == 1) {
1474                             $result .= $tmpstr;
1475                         } else {
1476                             $result .= mb_encode_mimeheader($tmpstr);
1477                         }
1478                         $tmpstr = $tmp;
1479                         $prevcsize = strlen($tmp);
1480                     }
1481                 }
1482                 if (strlen($tmpstr)) {
1483                     if (strlen(mb_substr($tmpstr, 0, 1)) == 1)
1484                         $result .= $tmpstr;
1485                     else
1486                         $result .= mb_encode_mimeheader($tmpstr);
1487                 }
1488             }
1489             $ret = $result;
1490             //$ret = mb_encode_mimeheader($ret);
1491             break;
1492         case 'decodeheader':
1493             $ret = str_replace("\t", "", $ret);
1494             if (eregi('=\\?([^?]+)\\?(q|b)\\?([^?]+)\\?=', $ret))
1495                 $ret = mb_decode_mimeheader($ret);
1496             $ret = mb_convert_encoding($ret, 'EUC-JP', 'AUTO');
1497             break;
1498         case 'downloadfilename':
1499             $useragent = func_get_arg(2);
1500             if (strstr($useragent, 'Windows') !== false ||
1501                 strstr($useragent, 'Mac_') !== false) {
1502                 $ret = mb_convert_encoding($ret, 'SJIS', 'AUTO');
1503             } else {
1504                 $ret = mb_convert_encoding($ret, 'EUC-JP', 'AUTO');
1505 }
1506             break;
1507         }
1508     }
1509     return $ret;
1510 }
1511
1512
1513 /*
1514  * Korean charset extra function
1515  * Hangul(Korean Character) Attached File Name Fix.
1516  */
1517 function korean_charset_xtra() {
1518
1519     $ret = func_get_arg(1);  /* default return value */
1520     if (func_get_arg(0) == 'downloadfilename') { /* action */
1521         $ret = str_replace("\x0D\x0A", '', $ret);  /* Hanmail's CR/LF Clear */
1522         for ($i=0;$i<strlen($ret);$i++) {
1523             if ($ret[$i] >= "\xA1" && $ret[$i] <= "\xFE") {   /* 0xA1 - 0XFE are Valid */
1524                 $i++;
1525                 continue;
1526             } else if (($ret[$i] >= 'a' && $ret[$i] <= 'z') || /* From Original ereg_replace in download.php */
1527                        ($ret[$i] >= 'A' && $ret[$i] <= 'Z') ||
1528                        ($ret[$i] == '.') || ($ret[$i] == '-')) {
1529                 continue;
1530             } else {
1531                 $ret[$i] = '_';
1532             }
1533         }
1534
1535     }
1536
1537     return $ret;
1538 }
1539
1540 ?>