functions/i18n.php

   1 <?php
   2
   3 /**
   4  * i18n.php
   5  *
   6  * Copyright (c) 1999-2002 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
  21     /* All HTML special characters are 7 bit and can be replaced first */
  22     $string = htmlspecialchars ($string);
  23
  24     $charset = strtolower($charset);
  25
  26     if (ereg('iso-8859-([[:digit:]]+)', $charset, $res)) {
  27         if ($res[1] == '1') {
  28             $ret = charset_decode_iso_8859_1 ($string);
  29         } else if ($res[1] == '2') {
  30             $ret = charset_decode_iso_8859_2 ($string);
  31         } else if ($res[1] == '7') {
  32             $ret = charset_decode_iso_8859_7 ($string);
  33         } else if ($res[1] == '15') {
  34             $ret = charset_decode_iso_8859_15 ($string);
  35         } else {
  36             $ret = charset_decode_iso_8859_default ($string);
  37         }
  38     } else if ($charset == 'ns_4551-1') {
  39         $ret = charset_decode_ns_4551_1 ($string);
  40     } else if ($charset == 'koi8-r') {
  41         $ret = charset_decode_koi8r ($string);
  42     } else if ($charset == 'windows-1251') {
  43         $ret = charset_decode_koi8r ($string);
  44     } else {
  45         $ret = $string;
  46     }
  47     return( $ret );
  48 }
  49
  50 /*
  51  iso-8859-1 is the same as Latin 1 and is normally used
  52  in western europe.
  53  */
  54 function charset_decode_iso_8859_1 ($string) {
  55     global $default_charset;
  56
  57     if (strtolower($default_charset) <> 'iso-8859-1') {
  58         /* Only do the slow convert if there are 8-bit characters */
  59         if (ereg("[\200-\377]", $string)) {
  60             $string = str_replace("\201", '&#129;', $string);
  61             $string = str_replace("\202", '&#130;', $string);
  62             $string = str_replace("\203", '&#131;', $string);
  63             $string = str_replace("\204", '&#132;', $string);
  64             $string = str_replace("\205", '&#133;', $string);
  65             $string = str_replace("\206", '&#134;', $string);
  66             $string = str_replace("\207", '&#135;', $string);
  67             $string = str_replace("\210", '&#136;', $string);
  68             $string = str_replace("\211", '&#137;', $string);
  69             $string = str_replace("\212", '&#138;', $string);
  70             $string = str_replace("\213", '&#139;', $string);
  71             $string = str_replace("\214", '&#140;', $string);
  72             $string = str_replace("\215", '&#141;', $string);
  73             $string = str_replace("\216", '&#142;', $string);
  74             $string = str_replace("\217", '&#143;', $string);
  75             $string = str_replace("\220", '&#144;', $string);
  76             $string = str_replace("\221", '&#145;', $string);
  77             $string = str_replace("\222", '&#146;', $string);
  78             $string = str_replace("\223", '&#147;', $string);
  79             $string = str_replace("\224", '&#148;', $string);
  80             $string = str_replace("\225", '&#149;', $string);
  81             $string = str_replace("\226", '&#150;', $string);
  82             $string = str_replace("\227", '&#151;', $string);
  83             $string = str_replace("\230", '&#152;', $string);
  84             $string = str_replace("\231", '&#153;', $string);
  85             $string = str_replace("\232", '&#154;', $string);
  86             $string = str_replace("\233", '&#155;', $string);
  87             $string = str_replace("\234", '&#156;', $string);
  88             $string = str_replace("\235", '&#157;', $string);
  89             $string = str_replace("\236", '&#158;', $string);
  90             $string = str_replace("\237", '&#159;', $string);
  91             $string = str_replace("\240", '&#160;', $string);
  92             $string = str_replace("\241", '&#161;', $string);
  93             $string = str_replace("\242", '&#162;', $string);
  94             $string = str_replace("\243", '&#163;', $string);
  95             $string = str_replace("\244", '&#164;', $string);
  96             $string = str_replace("\245", '&#165;', $string);
  97             $string = str_replace("\246", '&#166;', $string);
  98             $string = str_replace("\247", '&#167;', $string);
  99             $string = str_replace("\250", '&#168;', $string);
 100             $string = str_replace("\251", '&#169;', $string);
 101             $string = str_replace("\252", '&#170;', $string);
 102             $string = str_replace("\253", '&#171;', $string);
 103             $string = str_replace("\254", '&#172;', $string);
 104             $string = str_replace("\255", '&#173;', $string);
 105             $string = str_replace("\256", '&#174;', $string);
 106             $string = str_replace("\257", '&#175;', $string);
 107             $string = str_replace("\260", '&#176;', $string);
 108             $string = str_replace("\261", '&#177;', $string);
 109             $string = str_replace("\262", '&#178;', $string);
 110             $string = str_replace("\263", '&#179;', $string);
 111             $string = str_replace("\264", '&#180;', $string);
 112             $string = str_replace("\265", '&#181;', $string);
 113             $string = str_replace("\266", '&#182;', $string);
 114             $string = str_replace("\267", '&#183;', $string);
 115             $string = str_replace("\270", '&#184;', $string);
 116             $string = str_replace("\271", '&#185;', $string);
 117             $string = str_replace("\272", '&#186;', $string);
 118             $string = str_replace("\273", '&#187;', $string);
 119             $string = str_replace("\274", '&#188;', $string);
 120             $string = str_replace("\275", '&#189;', $string);
 121             $string = str_replace("\276", '&#190;', $string);
 122             $string = str_replace("\277", '&#191;', $string);
 123             $string = str_replace("\300", '&#192;', $string);
 124             $string = str_replace("\301", '&#193;', $string);
 125             $string = str_replace("\302", '&#194;', $string);
 126             $string = str_replace("\303", '&#195;', $string);
 127             $string = str_replace("\304", '&#196;', $string);
 128             $string = str_replace("\305", '&#197;', $string);
 129             $string = str_replace("\306", '&#198;', $string);
 130             $string = str_replace("\307", '&#199;', $string);
 131             $string = str_replace("\310", '&#200;', $string);
 132             $string = str_replace("\311", '&#201;', $string);
 133             $string = str_replace("\312", '&#202;', $string);
 134             $string = str_replace("\313", '&#203;', $string);
 135             $string = str_replace("\314", '&#204;', $string);
 136             $string = str_replace("\315", '&#205;', $string);
 137             $string = str_replace("\316", '&#206;', $string);
 138             $string = str_replace("\317", '&#207;', $string);
 139             $string = str_replace("\320", '&#208;', $string);
 140             $string = str_replace("\321", '&#209;', $string);
 141             $string = str_replace("\322", '&#210;', $string);
 142             $string = str_replace("\323", '&#211;', $string);
 143             $string = str_replace("\324", '&#212;', $string);
 144             $string = str_replace("\325", '&#213;', $string);
 145             $string = str_replace("\326", '&#214;', $string);
 146             $string = str_replace("\327", '&#215;', $string);
 147             $string = str_replace("\330", '&#216;', $string);
 148             $string = str_replace("\331", '&#217;', $string);
 149             $string = str_replace("\332", '&#218;', $string);
 150             $string = str_replace("\333", '&#219;', $string);
 151             $string = str_replace("\334", '&#220;', $string);
 152             $string = str_replace("\335", '&#221;', $string);
 153             $string = str_replace("\336", '&#222;', $string);
 154             $string = str_replace("\337", '&#223;', $string);
 155             $string = str_replace("\340", '&#224;', $string);
 156             $string = str_replace("\341", '&#225;', $string);
 157             $string = str_replace("\342", '&#226;', $string);
 158             $string = str_replace("\343", '&#227;', $string);
 159             $string = str_replace("\344", '&#228;', $string);
 160             $string = str_replace("\345", '&#229;', $string);
 161             $string = str_replace("\346", '&#230;', $string);
 162             $string = str_replace("\347", '&#231;', $string);
 163             $string = str_replace("\350", '&#232;', $string);
 164             $string = str_replace("\351", '&#233;', $string);
 165             $string = str_replace("\352", '&#234;', $string);
 166             $string = str_replace("\353", '&#235;', $string);
 167             $string = str_replace("\354", '&#236;', $string);
 168             $string = str_replace("\355", '&#237;', $string);
 169             $string = str_replace("\356", '&#238;', $string);
 170             $string = str_replace("\357", '&#239;', $string);
 171             $string = str_replace("\360", '&#240;', $string);
 172             $string = str_replace("\361", '&#241;', $string);
 173             $string = str_replace("\362", '&#242;', $string);
 174             $string = str_replace("\363", '&#243;', $string);
 175             $string = str_replace("\364", '&#244;', $string);
 176             $string = str_replace("\365", '&#245;', $string);
 177             $string = str_replace("\366", '&#246;', $string);
 178             $string = str_replace("\367", '&#247;', $string);
 179             $string = str_replace("\370", '&#248;', $string);
 180             $string = str_replace("\371", '&#249;', $string);
 181             $string = str_replace("\372", '&#250;', $string);
 182             $string = str_replace("\373", '&#251;', $string);
 183             $string = str_replace("\374", '&#252;', $string);
 184             $string = str_replace("\375", '&#253;', $string);
 185             $string = str_replace("\376", '&#254;', $string);
 186             $string = str_replace("\377", '&#255;', $string);
 187         }
 188     }
 189
 190     return ($string);
 191 }
 192
 193 /* iso-8859-2 is used for some eastern European languages */
 194 function charset_decode_iso_8859_2 ($string) {
 195     global $default_charset;
 196
 197     if (strtolower($default_charset) == 'iso-8859-2')
 198         return $string;
 199
 200     /* Only do the slow convert if there are 8-bit characters */
 201     if (! ereg("[\200-\377]", $string))
 202         return $string;
 203
 204     /* NO-BREAK SPACE */
 205     $string = str_replace("\240", '&#160;', $string);
 206     /* LATIN CAPITAL LETTER A WITH OGONEK */
 207     $string = str_replace("\241", '&#260;', $string);
 208     /* BREVE */
 209     $string = str_replace("\242", '&#728;', $string);
 210     // LATIN CAPITAL LETTER L WITH STROKE
 211     $string = str_replace("\243", '&#321;', $string);
 212     // CURRENCY SIGN
 213     $string = str_replace("\244", '&#164;', $string);
 214     // LATIN CAPITAL LETTER L WITH CARON
 215     $string = str_replace("\245", '&#317;', $string);
 216     // LATIN CAPITAL LETTER S WITH ACUTE
 217     $string = str_replace("\246", '&#346;', $string);
 218     // SECTION SIGN
 219     $string = str_replace("\247", '&#167;', $string);
 220     // DIAERESIS
 221     $string = str_replace("\250", '&#168;', $string);
 222     // LATIN CAPITAL LETTER S WITH CARON
 223     $string = str_replace("\251", '&#352;', $string);
 224     // LATIN CAPITAL LETTER S WITH CEDILLA
 225     $string = str_replace("\252", '&#350;', $string);
 226     // LATIN CAPITAL LETTER T WITH CARON
 227     $string = str_replace("\253", '&#356;', $string);
 228     // LATIN CAPITAL LETTER Z WITH ACUTE
 229     $string = str_replace("\254", '&#377;', $string);
 230     // SOFT HYPHEN
 231     $string = str_replace("\255", '&#173;', $string);
 232     // LATIN CAPITAL LETTER Z WITH CARON
 233     $string = str_replace("\256", '&#381;', $string);
 234     // LATIN CAPITAL LETTER Z WITH DOT ABOVE
 235     $string = str_replace("\257", '&#379;', $string);
 236     // DEGREE SIGN
 237     $string = str_replace("\260", '&#176;', $string);
 238     // LATIN SMALL LETTER A WITH OGONEK
 239     $string = str_replace("\261", '&#261;', $string);
 240     // OGONEK
 241     $string = str_replace("\262", '&#731;', $string);
 242     // LATIN SMALL LETTER L WITH STROKE
 243     $string = str_replace("\263", '&#322;', $string);
 244     // ACUTE ACCENT
 245     $string = str_replace("\264", '&#180;', $string);
 246     // LATIN SMALL LETTER L WITH CARON
 247     $string = str_replace("\265", '&#318;', $string);
 248     // LATIN SMALL LETTER S WITH ACUTE
 249     $string = str_replace("\266", '&#347;', $string);
 250     // CARON
 251     $string = str_replace("\267", '&#711;', $string);
 252     // CEDILLA
 253     $string = str_replace("\270", '&#184;', $string);
 254     // LATIN SMALL LETTER S WITH CARON
 255     $string = str_replace("\271", '&#353;', $string);
 256     // LATIN SMALL LETTER S WITH CEDILLA
 257     $string = str_replace("\272", '&#351;', $string);
 258     // LATIN SMALL LETTER T WITH CARON
 259     $string = str_replace("\273", '&#357;', $string);
 260     // LATIN SMALL LETTER Z WITH ACUTE
 261     $string = str_replace("\274", '&#378;', $string);
 262     // DOUBLE ACUTE ACCENT
 263     $string = str_replace("\275", '&#733;', $string);
 264     // LATIN SMALL LETTER Z WITH CARON
 265     $string = str_replace("\276", '&#382;', $string);
 266     // LATIN SMALL LETTER Z WITH DOT ABOVE
 267     $string = str_replace("\277", '&#380;', $string);
 268     // LATIN CAPITAL LETTER R WITH ACUTE
 269     $string = str_replace("\300", '&#340;', $string);
 270     // LATIN CAPITAL LETTER A WITH ACUTE
 271     $string = str_replace("\301", '&#193;', $string);
 272     // LATIN CAPITAL LETTER A WITH CIRCUMFLEX
 273     $string = str_replace("\302", '&#194;', $string);
 274     // LATIN CAPITAL LETTER A WITH BREVE
 275     $string = str_replace("\303", '&#258;', $string);
 276     // LATIN CAPITAL LETTER A WITH DIAERESIS
 277     $string = str_replace("\304", '&#196;', $string);
 278     // LATIN CAPITAL LETTER L WITH ACUTE
 279     $string = str_replace("\305", '&#313;', $string);
 280     // LATIN CAPITAL LETTER C WITH ACUTE
 281     $string = str_replace("\306", '&#262;', $string);
 282     // LATIN CAPITAL LETTER C WITH CEDILLA
 283     $string = str_replace("\307", '&#199;', $string);
 284     // LATIN CAPITAL LETTER C WITH CARON
 285     $string = str_replace("\310", '&#268;', $string);
 286     // LATIN CAPITAL LETTER E WITH ACUTE
 287     $string = str_replace("\311", '&#201;', $string);
 288     // LATIN CAPITAL LETTER E WITH OGONEK
 289     $string = str_replace("\312", '&#280;', $string);
 290     // LATIN CAPITAL LETTER E WITH DIAERESIS
 291     $string = str_replace("\313", '&#203;', $string);
 292     // LATIN CAPITAL LETTER E WITH CARON
 293     $string = str_replace("\314", '&#282;', $string);
 294     // LATIN CAPITAL LETTER I WITH ACUTE
 295     $string = str_replace("\315", '&#205;', $string);
 296     // LATIN CAPITAL LETTER I WITH CIRCUMFLEX
 297     $string = str_replace("\316", '&#206;', $string);
 298     // LATIN CAPITAL LETTER D WITH CARON
 299     $string = str_replace("\317", '&#270;', $string);
 300     // LATIN CAPITAL LETTER D WITH STROKE
 301     $string = str_replace("\320", '&#272;', $string);
 302     // LATIN CAPITAL LETTER N WITH ACUTE
 303     $string = str_replace("\321", '&#323;', $string);
 304     // LATIN CAPITAL LETTER N WITH CARON
 305     $string = str_replace("\322", '&#327;', $string);
 306     // LATIN CAPITAL LETTER O WITH ACUTE
 307     $string = str_replace("\323", '&#211;', $string);
 308     // LATIN CAPITAL LETTER O WITH CIRCUMFLEX
 309     $string = str_replace("\324", '&#212;', $string);
 310     // LATIN CAPITAL LETTER O WITH DOUBLE ACUTE
 311     $string = str_replace("\325", '&#336;', $string);
 312     // LATIN CAPITAL LETTER O WITH DIAERESIS
 313     $string = str_replace("\326", '&#214;', $string);
 314     // MULTIPLICATION SIGN
 315     $string = str_replace("\327", '&#215;', $string);
 316     // LATIN CAPITAL LETTER R WITH CARON
 317     $string = str_replace("\330", '&#344;', $string);
 318     // LATIN CAPITAL LETTER U WITH RING ABOVE
 319     $string = str_replace("\331", '&#366;', $string);
 320     // LATIN CAPITAL LETTER U WITH ACUTE
 321     $string = str_replace("\332", '&#218;', $string);
 322     // LATIN CAPITAL LETTER U WITH DOUBLE ACUTE
 323     $string = str_replace("\333", '&#368;', $string);
 324     // LATIN CAPITAL LETTER U WITH DIAERESIS
 325     $string = str_replace("\334", '&#220;', $string);
 326     // LATIN CAPITAL LETTER Y WITH ACUTE
 327     $string = str_replace("\335", '&#221;', $string);
 328     // LATIN CAPITAL LETTER T WITH CEDILLA
 329     $string = str_replace("\336", '&#354;', $string);
 330     // LATIN SMALL LETTER SHARP S
 331     $string = str_replace("\337", '&#223;', $string);
 332     // LATIN SMALL LETTER R WITH ACUTE
 333     $string = str_replace("\340", '&#341;', $string);
 334     // LATIN SMALL LETTER A WITH ACUTE
 335     $string = str_replace("\341", '&#225;', $string);
 336     // LATIN SMALL LETTER A WITH CIRCUMFLEX
 337     $string = str_replace("\342", '&#226;', $string);
 338     // LATIN SMALL LETTER A WITH BREVE
 339     $string = str_replace("\343", '&#259;', $string);
 340     // LATIN SMALL LETTER A WITH DIAERESIS
 341     $string = str_replace("\344", '&#228;', $string);
 342     // LATIN SMALL LETTER L WITH ACUTE
 343     $string = str_replace("\345", '&#314;', $string);
 344     // LATIN SMALL LETTER C WITH ACUTE
 345     $string = str_replace("\346", '&#263;', $string);
 346     // LATIN SMALL LETTER C WITH CEDILLA
 347     $string = str_replace("\347", '&#231;', $string);
 348     // LATIN SMALL LETTER C WITH CARON
 349     $string = str_replace("\350", '&#269;', $string);
 350     // LATIN SMALL LETTER E WITH ACUTE
 351     $string = str_replace("\351", '&#233;', $string);
 352     // LATIN SMALL LETTER E WITH OGONEK
 353     $string = str_replace("\352", '&#281;', $string);
 354     // LATIN SMALL LETTER E WITH DIAERESIS
 355     $string = str_replace("\353", '&#235;', $string);
 356     // LATIN SMALL LETTER E WITH CARON
 357     $string = str_replace("\354", '&#283;', $string);
 358     // LATIN SMALL LETTER I WITH ACUTE
 359     $string = str_replace("\355", '&#237;', $string);
 360     // LATIN SMALL LETTER I WITH CIRCUMFLEX
 361     $string = str_replace("\356", '&#238;', $string);
 362     // LATIN SMALL LETTER D WITH CARON
 363     $string = str_replace("\357", '&#271;', $string);
 364     // LATIN SMALL LETTER D WITH STROKE
 365     $string = str_replace("\360", '&#273;', $string);
 366     // LATIN SMALL LETTER N WITH ACUTE
 367     $string = str_replace("\361", '&#324;', $string);
 368     // LATIN SMALL LETTER N WITH CARON
 369     $string = str_replace("\362", '&#328;', $string);
 370     // LATIN SMALL LETTER O WITH ACUTE
 371     $string = str_replace("\363", '&#243;', $string);
 372     // LATIN SMALL LETTER O WITH CIRCUMFLEX
 373     $string = str_replace("\364", '&#244;', $string);
 374     // LATIN SMALL LETTER O WITH DOUBLE ACUTE
 375     $string = str_replace("\365", '&#337;', $string);
 376     // LATIN SMALL LETTER O WITH DIAERESIS
 377     $string = str_replace("\366", '&#246;', $string);
 378     // DIVISION SIGN
 379     $string = str_replace("\367", '&#247;', $string);
 380     // LATIN SMALL LETTER R WITH CARON
 381     $string = str_replace("\370", '&#345;', $string);
 382     // LATIN SMALL LETTER U WITH RING ABOVE
 383     $string = str_replace("\371", '&#367;', $string);
 384     // LATIN SMALL LETTER U WITH ACUTE
 385     $string = str_replace("\372", '&#250;', $string);
 386     // LATIN SMALL LETTER U WITH DOUBLE ACUTE
 387     $string = str_replace("\373", '&#369;', $string);
 388     // LATIN SMALL LETTER U WITH DIAERESIS
 389     $string = str_replace("\374", '&#252;', $string);
 390     // LATIN SMALL LETTER Y WITH ACUTE
 391     $string = str_replace("\375", '&#253;', $string);
 392     // LATIN SMALL LETTER T WITH CEDILLA
 393     $string = str_replace("\376", '&#355;', $string);
 394     // DOT ABOVE
 395     $string = str_replace("\377", '&#729;', $string);
 396
 397     return $string;
 398 }
 399
 400 /* iso-8859-7 is Greek. */
 401 function charset_decode_iso_8859_7 ($string) {
 402     global $default_charset;
 403
 404     if (strtolower($default_charset) == 'iso-8859-7') {
 405         return $string;
 406     }
 407
 408     /* Only do the slow convert if there are 8-bit characters */
 409     if (!ereg("[\200-\377]", $string)) {
 410         return $string;
 411     }
 412
 413     /* Some diverse characters in the beginning */
 414     $string = str_replace("\240", '&#160;', $string);
 415     $string = str_replace("\241", '&#8216;', $string);
 416     $string = str_replace("\242", '&#8217;', $string);
 417     $string = str_replace("\243", '&#163;', $string);
 418     $string = str_replace("\246", '&#166;', $string);
 419     $string = str_replace("\247", '&#167;', $string);
 420     $string = str_replace("\250", '&#168;', $string);
 421     $string = str_replace("\251", '&#169;', $string);
 422     $string = str_replace("\253", '&#171;', $string);
 423     $string = str_replace("\254", '&#172;', $string);
 424     $string = str_replace("\255", '&#173;', $string);
 425     $string = str_replace("\257", '&#8213;', $string);
 426     $string = str_replace("\260", '&#176;', $string);
 427     $string = str_replace("\261", '&#177;', $string);
 428     $string = str_replace("\262", '&#178;', $string);
 429     $string = str_replace("\263", '&#179;', $string);
 430
 431     /* Horizontal bar (parentheki pavla) */
 432     $string = str_replace ("\257", '&#8213;', $string);
 433
 434     /*
 435      * ISO-8859-7 characters from 11/04 (0xB4) to 11/06 (0xB6)
 436      * These are Unicode 900-902
 437      */
 438     $string = preg_replace("/([\264-\266])/","'&#' . (ord(\\1)+720)",$string);
 439
 440     /* 11/07 (0xB7) Middle dot is the same in iso-8859-1 */
 441     $string = str_replace("\267", '&#183;', $string);
 442
 443     /*
 444      * ISO-8859-7 characters from 11/08 (0xB8) to 11/10 (0xBA)
 445      * These are Unicode 900-902
 446      */
 447     $string = preg_replace("/([\270-\272])/","'&#' . (ord(\\1)+720)",$string);
 448
 449     /*
 450      * 11/11 (0xBB) Right angle quotation mark is the same as in
 451      * iso-8859-1
 452      */
 453     $string = str_replace("\273", '&#187;', $string);
 454
 455     /* And now the rest of the charset */
 456     $string = preg_replace("/([\274-\376])/","'&#' . (ord(\\1)+720)",$string);
 457
 458     return $string;
 459 }
 460
 461 /*
 462  * iso-8859-15 is Latin 9 and has very much the same use as Latin 1
 463  * but has the Euro symbol and some characters needed for French.
 464  */
 465 function charset_decode_iso_8859_15 ($string) {
 466     // Euro sign
 467     $string = str_replace ("\244", '&#8364;', $string);
 468     // Latin capital letter S with caron
 469     $string = str_replace ("\244", '&#352;', $string);
 470     // Latin small letter s with caron
 471     $string = str_replace ("\250", '&#353;', $string);
 472     // Latin capital letter Z with caron
 473     $string = str_replace ("\264", '&#381;', $string);
 474     // Latin small letter z with caron
 475     $string = str_replace ("\270", '&#382;', $string);
 476     // Latin capital ligature OE
 477     $string = str_replace ("\274", '&#338;', $string);
 478     // Latin small ligature oe
 479     $string = str_replace ("\275", '&#339;', $string);
 480     // Latin capital letter Y with diaeresis
 481     $string = str_replace ("\276", '&#376;', $string);
 482
 483     return (charset_decode_iso_8859_1($string));
 484 }
 485
 486 /* ISO-8859-15 is Cyrillic */
 487 function charset_decode_iso_8859_5 ($string) {
 488     // Convert to KOI8-R, then return this decoded.
 489     $string = convert_cyr_string($string, 'i', 'k');
 490     return charset_decode_koi8r($string);
 491 }
 492
 493 /* Remove all 8 bit characters from all other ISO-8859 character sets */
 494 function charset_decode_iso_8859_default ($string) {
 495     return (strtr($string, "\240\241\242\243\244\245\246\247".
 496                     "\250\251\252\253\254\255\256\257".
 497                     "\260\261\262\263\264\265\266\267".
 498                     "\270\271\272\273\274\275\276\277".
 499                     "\300\301\302\303\304\305\306\307".
 500                     "\310\311\312\313\314\315\316\317".
 501                     "\320\321\322\323\324\325\326\327".
 502                     "\330\331\332\333\334\335\336\337".
 503                     "\340\341\342\343\344\345\346\347".
 504                     "\350\351\352\353\354\355\356\357".
 505                     "\360\361\362\363\364\365\366\367".
 506                     "\370\371\372\373\374\375\376\377",
 507                     "????????????????????????????????????????".
 508                     "????????????????????????????????????????".
 509                     "????????????????????????????????????????".
 510                     "????????"));
 511
 512 }
 513
 514 /*
 515  * This is the same as ISO-646-NO and is used by some
 516  * Microsoft programs when sending Norwegian characters
 517  */
 518 function charset_decode_ns_4551_1 ($string) {
 519     /*
 520      * These characters are:
 521      * Latin capital letter AE
 522      * Latin capital letter O with stroke
 523      * Latin capital letter A with ring above
 524      * and the same as small letters
 525      */
 526     return strtr ($string, "[\\]{|}", "ÆØÅæøå");
 527 }
 528
 529 /*
 530  * KOI8-R is used to encode Russian mail (Cyrrilic). Defined in RFC
 531  * 1489.
 532  */
 533 function charset_decode_koi8r ($string) {
 534     global $default_charset;
 535
 536     if ($default_charset == 'koi8-r') {
 537         return $string;
 538     }
 539
 540     /*
 541      * Convert to Unicode HTML entities.
 542      * This code is rather ineffective.
 543      */
 544     $string = str_replace("\200", '&#9472;', $string);
 545     $string = str_replace("\201", '&#9474;', $string);
 546     $string = str_replace("\202", '&#9484;', $string);
 547     $string = str_replace("\203", '&#9488;', $string);
 548     $string = str_replace("\204", '&#9492;', $string);
 549     $string = str_replace("\205", '&#9496;', $string);
 550     $string = str_replace("\206", '&#9500;', $string);
 551     $string = str_replace("\207", '&#9508;', $string);
 552     $string = str_replace("\210", '&#9516;', $string);
 553     $string = str_replace("\211", '&#9524;', $string);
 554     $string = str_replace("\212", '&#9532;', $string);
 555     $string = str_replace("\213", '&#9600;', $string);
 556     $string = str_replace("\214", '&#9604;', $string);
 557     $string = str_replace("\215", '&#9608;', $string);
 558     $string = str_replace("\216", '&#9612;', $string);
 559     $string = str_replace("\217", '&#9616;', $string);
 560     $string = str_replace("\220", '&#9617;', $string);
 561     $string = str_replace("\221", '&#9618;', $string);
 562     $string = str_replace("\222", '&#9619;', $string);
 563     $string = str_replace("\223", '&#8992;', $string);
 564     $string = str_replace("\224", '&#9632;', $string);
 565     $string = str_replace("\225", '&#8729;', $string);
 566     $string = str_replace("\226", '&#8730;', $string);
 567     $string = str_replace("\227", '&#8776;', $string);
 568     $string = str_replace("\230", '&#8804;', $string);
 569     $string = str_replace("\231", '&#8805;', $string);
 570     $string = str_replace("\232", '&#160;', $string);
 571     $string = str_replace("\233", '&#8993;', $string);
 572     $string = str_replace("\234", '&#176;', $string);
 573     $string = str_replace("\235", '&#178;', $string);
 574     $string = str_replace("\236", '&#183;', $string);
 575     $string = str_replace("\237", '&#247;', $string);
 576     $string = str_replace("\240", '&#9552;', $string);
 577     $string = str_replace("\241", '&#9553;', $string);
 578     $string = str_replace("\242", '&#9554;', $string);
 579     $string = str_replace("\243", '&#1105;', $string);
 580     $string = str_replace("\244", '&#9555;', $string);
 581     $string = str_replace("\245", '&#9556;', $string);
 582     $string = str_replace("\246", '&#9557;', $string);
 583     $string = str_replace("\247", '&#9558;', $string);
 584     $string = str_replace("\250", '&#9559;', $string);
 585     $string = str_replace("\251", '&#9560;', $string);
 586     $string = str_replace("\252", '&#9561;', $string);
 587     $string = str_replace("\253", '&#9562;', $string);
 588     $string = str_replace("\254", '&#9563;', $string);
 589     $string = str_replace("\255", '&#9564;', $string);
 590     $string = str_replace("\256", '&#9565;', $string);
 591     $string = str_replace("\257", '&#9566;', $string);
 592     $string = str_replace("\260", '&#9567;', $string);
 593     $string = str_replace("\261", '&#9568;', $string);
 594     $string = str_replace("\262", '&#9569;', $string);
 595     $string = str_replace("\263", '&#1025;', $string);
 596     $string = str_replace("\264", '&#9570;', $string);
 597     $string = str_replace("\265", '&#9571;', $string);
 598     $string = str_replace("\266", '&#9572;', $string);
 599     $string = str_replace("\267", '&#9573;', $string);
 600     $string = str_replace("\270", '&#9574;', $string);
 601     $string = str_replace("\271", '&#9575;', $string);
 602     $string = str_replace("\272", '&#9576;', $string);
 603     $string = str_replace("\273", '&#9577;', $string);
 604     $string = str_replace("\274", '&#9578;', $string);
 605     $string = str_replace("\275", '&#9579;', $string);
 606     $string = str_replace("\276", '&#9580;', $string);
 607     $string = str_replace("\277", '&#169;', $string);
 608     $string = str_replace("\300", '&#1102;', $string);
 609     $string = str_replace("\301", '&#1072;', $string);
 610     $string = str_replace("\302", '&#1073;', $string);
 611     $string = str_replace("\303", '&#1094;', $string);
 612     $string = str_replace("\304", '&#1076;', $string);
 613     $string = str_replace("\305", '&#1077;', $string);
 614     $string = str_replace("\306", '&#1092;', $string);
 615     $string = str_replace("\307", '&#1075;', $string);
 616     $string = str_replace("\310", '&#1093;', $string);
 617     $string = str_replace("\311", '&#1080;', $string);
 618     $string = str_replace("\312", '&#1081;', $string);
 619     $string = str_replace("\313", '&#1082;', $string);
 620     $string = str_replace("\314", '&#1083;', $string);
 621     $string = str_replace("\315", '&#1084;', $string);
 622     $string = str_replace("\316", '&#1085;', $string);
 623     $string = str_replace("\317", '&#1086;', $string);
 624     $string = str_replace("\320", '&#1087;', $string);
 625     $string = str_replace("\321", '&#1103;', $string);
 626     $string = str_replace("\322", '&#1088;', $string);
 627     $string = str_replace("\323", '&#1089;', $string);
 628     $string = str_replace("\324", '&#1090;', $string);
 629     $string = str_replace("\325", '&#1091;', $string);
 630     $string = str_replace("\326", '&#1078;', $string);
 631     $string = str_replace("\327", '&#1074;', $string);
 632     $string = str_replace("\330", '&#1100;', $string);
 633     $string = str_replace("\331", '&#1099;', $string);
 634     $string = str_replace("\332", '&#1079;', $string);
 635     $string = str_replace("\333", '&#1096;', $string);
 636     $string = str_replace("\334", '&#1101;', $string);
 637     $string = str_replace("\335", '&#1097;', $string);
 638     $string = str_replace("\336", '&#1095;', $string);
 639     $string = str_replace("\337", '&#1098;', $string);
 640     $string = str_replace("\340", '&#1070;', $string);
 641     $string = str_replace("\341", '&#1040;', $string);
 642     $string = str_replace("\342", '&#1041;', $string);
 643     $string = str_replace("\343", '&#1062;', $string);
 644     $string = str_replace("\344", '&#1044;', $string);
 645     $string = str_replace("\345", '&#1045;', $string);
 646     $string = str_replace("\346", '&#1060;', $string);
 647     $string = str_replace("\347", '&#1043;', $string);
 648     $string = str_replace("\350", '&#1061;', $string);
 649     $string = str_replace("\351", '&#1048;', $string);
 650     $string = str_replace("\352", '&#1049;', $string);
 651     $string = str_replace("\353", '&#1050;', $string);
 652     $string = str_replace("\354", '&#1051;', $string);
 653     $string = str_replace("\355", '&#1052;', $string);
 654     $string = str_replace("\356", '&#1053;', $string);
 655     $string = str_replace("\357", '&#1054;', $string);
 656     $string = str_replace("\360", '&#1055;', $string);
 657     $string = str_replace("\361", '&#1071;', $string);
 658     $string = str_replace("\362", '&#1056;', $string);
 659     $string = str_replace("\363", '&#1057;', $string);
 660     $string = str_replace("\364", '&#1058;', $string);
 661     $string = str_replace("\365", '&#1059;', $string);
 662     $string = str_replace("\366", '&#1046;', $string);
 663     $string = str_replace("\367", '&#1042;', $string);
 664     $string = str_replace("\370", '&#1068;', $string);
 665     $string = str_replace("\371", '&#1067;', $string);
 666     $string = str_replace("\372", '&#1047;', $string);
 667     $string = str_replace("\373", '&#1064;', $string);
 668     $string = str_replace("\374", '&#1069;', $string);
 669     $string = str_replace("\375", '&#1065;', $string);
 670     $string = str_replace("\376", '&#1063;', $string);
 671     $string = str_replace("\377", '&#1066;', $string);
 672
 673     return $string;
 674 }
 675
 676 /*
 677  * Set up the language to be output
 678  * if $do_search is true, then scan the browser information
 679  * for a possible language that we know
 680  */
 681 function set_up_language($sm_language, $do_search = false) {
 682
 683     static $SetupAlready = 0;
 684     global $HTTP_ACCEPT_LANGUAGE, $use_gettext, $languages,
 685            $squirrelmail_language, $squirrelmail_default_language,
 686            $sm_notAlias;
 687
 688     if ($SetupAlready) {
 689         return;
 690     }
 691     $SetupAlready = TRUE;
 692
 693     if ($do_search && ! $sm_language && isset($HTTP_ACCEPT_LANGUAGE)) {
 694         $sm_language = substr($HTTP_ACCEPT_LANGUAGE, 0, 2);
 695     }
 696
 697     if (!$sm_language && isset($squirrelmail_default_language)) {
 698         $squirrelmail_language = $squirrelmail_default_language;
 699         $sm_language = $squirrelmail_default_language;
 700     }
 701     $sm_notAlias = $sm_language;
 702     while (isset($languages[$sm_notAlias]['ALIAS'])) {
 703         $sm_notAlias = $languages[$sm_notAlias]['ALIAS'];
 704     }
 705
 706     if ( isset($sm_language) &&
 707          $use_gettext &&
 708          $sm_language != '' &&
 709          isset($languages[$sm_notAlias]['CHARSET']) ) {
 710         bindtextdomain( 'squirrelmail', '../locale/' );
 711         textdomain( 'squirrelmail' );
 712         if ( !ini_get('safe_mode') &&
 713              getenv( 'LC_ALL' ) != $sm_notAlias ) {
 714             putenv( "LC_ALL=$sm_notAlias" );
 715             putenv( "LANG=$sm_notAlias" );
 716             putenv( "LANGUAGE=$sm_notAlias" );
 717         }
 718         setlocale(LC_ALL, $sm_notAlias);
 719         $squirrelmail_language = $sm_notAlias;
 720         header( 'Content-Type: text/html; charset=' . $languages[$sm_notAlias]['CHARSET'] );
 721     }
 722 }
 723
 724 function set_my_charset(){
 725
 726     /*
 727      * There can be a $default_charset setting in the
 728      * config.php file, but the user may have a different language
 729      * selected for a user interface. This function checks the
 730      * language selected by the user and tags the outgoing messages
 731      * with the appropriate charset corresponding to the language
 732      * selection. This is "more right" (tm), than just stamping the
 733      * message blindly with the system-wide $default_charset.
 734      */
 735     global $data_dir, $username, $default_charset, $languages;
 736
 737     $my_language = getPref($data_dir, $username, 'language');
 738     if (!$my_language) {
 739         return;
 740     }
 741     while (isset($languages[$my_language]['ALIAS'])) {
 742         $my_language = $languages[$my_language]['ALIAS'];
 743     }
 744     $my_charset = $languages[$my_language]['CHARSET'];
 745     if ($my_charset) {
 746         $default_charset = $my_charset;
 747     }
 748 }
 749
 750 /* ------------------------------ main --------------------------- */
 751
 752 global $squirrelmail_language, $languages, $use_gettext;
 753
 754 if (! isset($squirrelmail_language)) {
 755     $squirrelmail_language = '';
 756 }
 757
 758 /* This array specifies the available languages. */
 759
 760 // The glibc locale is ca_ES.
 761
 762 $languages['ca_ES']['NAME']    = 'Catalan';
 763 $languages['ca_ES']['CHARSET'] = 'iso-8859-1';
 764 $languages['ca']['ALIAS'] = 'ca_ES';
 765
 766 $languages['cs_CZ']['NAME']    = 'Czech';
 767 $languages['cs_CZ']['CHARSET'] = 'iso-8859-2';
 768 $languages['cs']['ALIAS']      = 'cs_CZ';
 769
 770 // Danish locale is da_DK.
 771
 772 $languages['da_DK']['NAME']    = 'Danish';
 773 $languages['da_DK']['CHARSET'] = 'iso-8859-1';
 774 $languages['da']['ALIAS'] = 'da_DK';
 775
 776 $languages['de_DE']['NAME']    = 'Deutsch';
 777 $languages['de_DE']['CHARSET'] = 'iso-8859-1';
 778 $languages['de']['ALIAS'] = 'de_DE';
 779
 780 // There is no en_EN! There is en_US, en_BR, en_AU, and so forth,
 781 // but who cares about !US, right? Right? :)
 782
 783 $languages['en_US']['NAME']    = 'English';
 784 $languages['en_US']['CHARSET'] = 'iso-8859-1';
 785 $languages['en']['ALIAS'] = 'en_US';
 786
 787 $languages['es_ES']['NAME']    = 'Spanish';
 788 $languages['es_ES']['CHARSET'] = 'iso-8859-1';
 789 $languages['es']['ALIAS'] = 'es_ES';
 790
 791 $languages['et_EE']['NAME']    = 'Estonian';
 792 $languages['et_EE']['CHARSET'] = 'iso-8859-15';
 793 $languages['et']['ALIAS'] = 'et_EE';
 794
 795 $languages['fi_FI']['NAME']    = 'Finnish';
 796 $languages['fi_FI']['CHARSET'] = 'iso-8859-1';
 797 $languages['fi']['ALIAS'] = 'fi_FI';
 798
 799 $languages['fr_FR']['NAME']    = 'French';
 800 $languages['fr_FR']['CHARSET'] = 'iso-8859-1';
 801 $languages['fr']['ALIAS'] = 'fr_FR';
 802
 803 $languages['hr_HR']['NAME']    = 'Croatian';
 804 $languages['hr_HR']['CHARSET'] = 'iso-8859-2';
 805 $languages['hr']['ALIAS'] = 'hr_HR';
 806
 807 $languages['hu_HU']['NAME']    = 'Hungarian';
 808 $languages['hu_HU']['CHARSET'] = 'iso-8859-2';
 809 $languages['hu']['ALIAS'] = 'hu_HU';
 810
 811 $languages['id_ID']['NAME']    = 'Indonesian';
 812 $languages['id_ID']['CHARSET'] = 'iso-8859-1';
 813 $languages['id']['ALIAS'] = 'id_ID';
 814
 815 $languages['is_IS']['NAME']    = 'Icelandic';
 816 $languages['is_IS']['CHARSET'] = 'iso-8859-1';
 817 $languages['is']['ALIAS'] = 'is_IS';
 818
 819 $languages['it_IT']['NAME']    = 'Italian';
 820 $languages['it_IT']['CHARSET'] = 'iso-8859-1';
 821 $languages['it']['ALIAS'] = 'it_IT';
 822
 823 $languages['ko_KR']['NAME']    = 'Korean';
 824 $languages['ko_KR']['CHARSET'] = 'euc-KR';
 825 $languages['ko']['ALIAS'] = 'ko_KR';
 826
 827 $languages['nl_NL']['NAME']    = 'Dutch';
 828 $languages['nl_NL']['CHARSET'] = 'iso-8859-1';
 829 $languages['nl']['ALIAS'] = 'nl_NL';
 830
 831 $languages['no_NO']['NAME']    = 'Norwegian (Bokm&aring;l)';
 832 $languages['no_NO']['CHARSET'] = 'iso-8859-1';
 833 $languages['no']['ALIAS'] = 'no_NO';
 834 $languages['nn_NO']['NAME']    = 'Norwegian (Nynorsk)';
 835 $languages['nn_NO']['CHARSET'] = 'iso-8859-1';
 836
 837 $languages['pl_PL']['NAME']    = 'Polish';
 838 $languages['pl_PL']['CHARSET'] = 'iso-8859-2';
 839 $languages['pl']['ALIAS'] = 'pl_PL';
 840
 841 $languages['pt_PT']['NAME'] = 'Portuguese (Portugal)';
 842 $languages['pt_PT']['CHARSET'] = 'iso-8859-1';
 843 $languages['pt_BR']['NAME']    = 'Portuguese (Brazil)';
 844 $languages['pt_BR']['CHARSET'] = 'iso-8859-1';
 845 $languages['pt']['ALIAS'] = 'pt_PT';
 846
 847 $languages['ru_RU']['NAME']    = 'Russian';
 848 $languages['ru_RU']['CHARSET'] = 'koi8-r';
 849 $languages['ru']['ALIAS'] = 'ru_RU';
 850
 851 $languages['sr_YU']['NAME']    = 'Serbian';
 852 $languages['sr_YU']['CHARSET'] = 'iso-8859-2';
 853 $languages['sr']['ALIAS'] = 'sr_YU';
 854
 855 $languages['sv_SE']['NAME']    = 'Swedish';
 856 $languages['sv_SE']['CHARSET'] = 'iso-8859-1';
 857 $languages['sv']['ALIAS'] = 'sv_SE';
 858
 859 $languages['tr_TR']['NAME']    = 'Turkish';
 860 $languages['tr_TR']['CHARSET'] = 'iso-8859-9';
 861 $languages['tr']['ALIAS'] = 'tr_TR';
 862
 863 // it's zh_TW, actually.
 864
 865 $languages['zh_TW']['NAME']    = 'Taiwan';
 866 $languages['zh_TW']['CHARSET'] = 'big5';
 867 $languages['tw']['ALIAS'] = 'zh_TW';
 868
 869 $languages['sk_SK']['NAME']     = 'Slovak';
 870 $languages['sk_SK']['CHARSET']  = 'iso-8859-2';
 871 $languages['sk']['ALIAS']       = 'sk_SK';
 872
 873 $languages['ro_RO']['NAME']    = 'Romanian';
 874 $languages['ro_RO']['CHARSET'] = 'iso-8859-2';
 875 $languages['ro']['ALIAS'] = 'ro_RO';
 876
 877 $languages['th_TH']['NAME']    = 'Thai';
 878 $languages['th_TH']['CHARSET'] = 'tis-620';
 879 $languages['th']['ALIAS'] = 'th_TH';
 880
 881 $languages['lt_LT']['NAME']    = 'Lithuanian';
 882 $languages['lt_LT']['CHARSET'] = 'iso-8859-13';
 883 $languages['lt']['ALIAS'] = 'lt_LT';
 884
 885 $languages['sl_SI']['NAME']    = 'Slovenian';
 886 $languages['sl_SI']['CHARSET'] = 'iso-8859-2';
 887 $languages['sl']['ALIAS'] = 'sl_SI';
 888
 889 $languages['bg_BG']['NAME']    = 'Bulgarian';
 890 $languages['bg_BG']['CHARSET'] = 'windows-1251';
 891 $languages['bg']['ALIAS'] = 'bg_BG';
 892
 893 /* Detect whether gettext is installed. */
 894 $gettext_flags = 0;
 895 if (function_exists('_')) {
 896     $gettext_flags += 1;
 897 }
 898 if (function_exists('bindtextdomain')) {
 899     $gettext_flags += 2;
 900 }
 901 if (function_exists('textdomain')) {
 902     $gettext_flags += 4;
 903 }
 904
 905 /* If gettext is fully loaded, cool */
 906 if ($gettext_flags == 7) {
 907     $use_gettext = true;
 908 }
 909 /* If we can fake gettext, try that */
 910 elseif ($gettext_flags == 0) {
 911     $use_gettext = true;
 912     include_once('../functions/gettext.php');
 913 } else {
 914     /* Uh-ho.  A weird install */
 915     if (! $gettext_flags & 1) {
 916         function _($str) {
 917             return $str;
 918         }
 919     }
 920     if (! $gettext_flags & 2) {
 921         function bindtextdomain() {
 922             return;
 923         }
 924     }
 925     if (! $gettext_flags & 4) {
 926         function textdomain() {
 927             return;
 928         }
 929     }
 930 }
 931
 932 ?>