functions/i18n.php

   1 <?php
   2 /**
   3  * SquirrelMail internationalization functions
   4  *
   5  * Copyright (c) 1999-2005 The SquirrelMail Project Team
   6  * Licensed under the GNU GPL. For full terms see the file COPYING.
   7  *
   8  * This file contains variuos functions that are needed to do
   9  * internationalization of SquirrelMail.
  10  *
  11  * Internally the output character set is used. Other characters are
  12  * encoded using Unicode entities according to HTML 4.0.
  13  *
  14  * @version $Id$
  15  * @package squirrelmail
  16  * @subpackage i18n
  17  */
  18
  19 /** Everything uses global.php... */
  20 require_once(SM_PATH . 'functions/global.php');
  21
  22 /**
  23  * Gettext bindtextdomain wrapper.
  24  *
  25  * Wrapper solves differences between php versions in order to provide
  26  * ngettext support. Should be used if translation uses ngettext
  27  * functions.
  28  * @since 1.5.1
  29  * @param string $domain gettext domain name
  30  * @param string $dir directory that contains all translations
  31  * @return string path to translation directory
  32  */
  33 function sq_bindtextdomain($domain,$dir) {
  34     global $l10n, $gettext_flags, $sm_notAlias;
  35
  36     if ($gettext_flags==7) {
  37         // gettext extension without ngettext
  38         if (substr($dir, -1) != '/') $dir .= '/';
  39         $mofile=$dir . $sm_notAlias . '/LC_MESSAGES/' . $domain . '.mo';
  40         $input = new FileReader($mofile);
  41         $l10n[$domain] = new gettext_reader($input);
  42     }
  43
  44     $dir=bindtextdomain($domain,$dir);
  45
  46     return $dir;
  47 }
  48
  49 /**
  50  * Gettext textdomain wrapper.
  51  * Makes sure that gettext_domain global is modified.
  52  * @since 1.5.1
  53  * @param string $name gettext domain name
  54  * @return string gettext domain name
  55  */
  56 function sq_textdomain($domain) {
  57     global $gettext_domain;
  58     $gettext_domain=textdomain($domain);
  59     return $gettext_domain;
  60 }
  61
  62 /**
  63  * php setlocale function wrapper
  64  *
  65  * From php 4.3.0 it is possible to use arrays in order to set locale.
  66  * php gettext extension works only when locale is set. This wrapper
  67  * function allows to use more than one locale name.
  68  *
  69  * @param int $category locale category name. Use php named constants
  70  *     (LC_ALL, LC_COLLATE, LC_CTYPE, LC_MONETARY, LC_NUMERIC, LC_TIME)
  71  * @param mixed $locale option contains array with possible locales or string with one locale
  72  * @return string name of set locale or false, if all locales fail.
  73  * @since 1.5.1 and 1.4.5
  74  * @see http://www.php.net/setlocale
  75  */
  76 function sq_setlocale($category,$locale) {
  77     // string with only one locale
  78     if (is_string($locale))
  79         return setlocale($category,$locale);
  80
  81     if (! check_php_version(4,3)) {
  82         $ret=false;
  83         $index=0;
  84         while ( ! $ret && $index<count($locale)) {
  85             $ret=setlocale($category,$locale[$index]);
  86             $index++;
  87         }
  88     } else {
  89         // php 4.3.0 or better, use entire array
  90         $ret=setlocale($category,$locale);
  91     }
  92     return $ret;
  93 }
  94
  95 /**
  96  * Converts string from given charset to charset, that can be displayed by user translation.
  97  *
  98  * Function by default returns html encoded strings, if translation uses different encoding.
  99  * If Japanese translation is used - function returns string converted to euc-jp
 100  * If iconv or recode functions are enabled and translation uses utf-8 - function returns utf-8 encoded string.
 101  * If $charset is not supported - function returns unconverted string.
 102  *
 103  * sanitizing of html tags is also done by this function.
 104  *
 105  * @param string $charset
 106  * @param string $string Text to be decoded
 107  * @param boolean $force_decode converts string to html without $charset!=$default_charset check.
 108  * Argument is available since 1.5.1 and 1.4.5.
 109  * @return string decoded string
 110  */
 111 function charset_decode ($charset, $string, $force_decode=false) {
 112     global $languages, $squirrelmail_language, $default_charset;
 113     global $use_php_recode, $use_php_iconv, $aggressive_decoding;
 114
 115     if (isset($languages[$squirrelmail_language]['XTRA_CODE']) &&
 116         function_exists($languages[$squirrelmail_language]['XTRA_CODE'] . '_decode')) {
 117         $string = call_user_func($languages[$squirrelmail_language]['XTRA_CODE'] . '_decode', $string);
 118     }
 119
 120     $charset = strtolower($charset);
 121
 122     set_my_charset();
 123
 124     // Variables that allow to use functions without function_exist() calls
 125     if (! isset($use_php_recode) || $use_php_recode=="" ) {
 126         $use_php_recode=false; }
 127     if (! isset($use_php_iconv) || $use_php_iconv=="" ) {
 128         $use_php_iconv=false; }
 129
 130     // Don't do conversion if charset is the same.
 131     if ( ! $force_decode && $charset == strtolower($default_charset) )
 132         return htmlspecialchars($string);
 133
 134     // catch iso-8859-8-i thing
 135     if ( $charset == "iso-8859-8-i" )
 136         $charset = "iso-8859-8";
 137
 138     /*
 139      * Recode converts html special characters automatically if you use
 140      * 'charset..html' decoding. There is no documented way to put -d option
 141      * into php recode function call.
 142      */
 143     if ( $use_php_recode ) {
 144         if ( $default_charset == "utf-8" ) {
 145             // other charsets can be converted to utf-8 without loss.
 146             // and output string is smaller
 147             $string = recode_string($charset . "..utf-8",$string);
 148             return htmlspecialchars($string);
 149         } else {
 150             $string = recode_string($charset . "..html",$string);
 151             // recode does not convert single quote, htmlspecialchars does.
 152             $string = str_replace("'", '&#039;', $string);
 153             return $string;
 154         }
 155     }
 156
 157     // iconv functions does not have html target and can be used only with utf-8
 158     if ( $use_php_iconv && $default_charset=='utf-8') {
 159         $string = iconv($charset,$default_charset,$string);
 160         return htmlspecialchars($string);
 161     }
 162
 163     // If we don't use recode and iconv, we'll do it old way.
 164
 165     /* All HTML special characters are 7 bit and can be replaced first */
 166
 167     $string = htmlspecialchars ($string);
 168
 169     /* controls cpu and memory intensive decoding cycles */
 170     if (! isset($aggressive_decoding) || $aggressive_decoding=="" ) {
 171         $aggressive_decoding=false; }
 172
 173     $decode=fixcharset($charset);
 174     $decodefile=SM_PATH . 'functions/decode/' . $decode . '.php';
 175     if (file_exists($decodefile)) {
 176         include_once($decodefile);
 177         $ret = call_user_func('charset_decode_'.$decode, $string);
 178     } else {
 179         $ret = $string;
 180     }
 181     return( $ret );
 182 }
 183
 184 /**
 185  * Converts html string to given charset
 186  * @since 1.5.1 and 1.4.4
 187  * @param string $string
 188  * @param string $charset
 189  * @param boolean $htmlencode keep htmlspecialchars encoding
 190  * @param string
 191  */
 192 function charset_encode($string,$charset,$htmlencode=true) {
 193     global $default_charset;
 194
 195     $encode=fixcharset($charset);
 196     $encodefile=SM_PATH . 'functions/encode/' . $encode . '.php';
 197     if (file_exists($encodefile)) {
 198         include_once($encodefile);
 199         $ret = call_user_func('charset_encode_'.$encode, $string);
 200     } elseif(file_exists(SM_PATH . 'functions/encode/us_ascii.php')) {
 201         // function replaces all 8bit html entities with question marks.
 202         // it is used when other encoding functions are unavailable
 203         include_once(SM_PATH . 'functions/encode/us_ascii.php');
 204         $ret = charset_encode_us_ascii($string);
 205     } else {
 206         /**
 207          * fix for yahoo users that remove all us-ascii related things
 208          */
 209         $ret = $string;
 210     }
 211
 212     /**
 213      * Undo html special chars, some places (like compose form) have
 214      * own sanitizing functions and don't need html symbols.
 215      * Undo chars only after encoding in order to prevent conversion of
 216      * html entities in plain text emails.
 217      */
 218     if (! $htmlencode ) {
 219         $ret = str_replace(array('&amp;','&gt;','&lt;','&quot;'),array('&','>','<','"'),$ret);
 220     }
 221     return( $ret );
 222 }
 223
 224 /**
 225  * Combined decoding and encoding functions
 226  *
 227  * If conversion is done to charset different that utf-8, unsupported symbols
 228  * will be replaced with question marks.
 229  * @since 1.5.1 and 1.4.4
 230  * @param string $in_charset initial charset
 231  * @param string $string string that has to be converted
 232  * @param string $out_charset final charset
 233  * @param boolean $htmlencode keep htmlspecialchars encoding
 234  * @return string converted string
 235  */
 236 function charset_convert($in_charset,$string,$out_charset,$htmlencode=true) {
 237     $string=charset_decode($in_charset,$string,true);
 238     $string=charset_encode($string,$out_charset,$htmlencode);
 239     return $string;
 240 }
 241
 242 /**
 243  * Makes charset name suitable for decoding cycles
 244  *
 245  * @since 1.5.0 and 1.4.4
 246  * @param string $charset Name of charset
 247  * @return string $charset Adjusted name of charset
 248  */
 249 function fixcharset($charset) {
 250     /* remove minus and characters that might be used in paths from charset
 251      * name in order to be able to use it in function names and include calls.
 252      */
 253     $charset=preg_replace("/[-:.\/\\\]/",'_',$charset);
 254
 255     // windows-125x and cp125x charsets
 256     $charset=str_replace('windows_','cp',$charset);
 257
 258     // ibm > cp
 259     $charset=str_replace('ibm','cp',$charset);
 260
 261     // iso-8859-8-i -> iso-8859-8
 262     // use same cycle until I'll find differences
 263     $charset=str_replace('iso_8859_8_i','iso_8859_8',$charset);
 264
 265     return $charset;
 266 }
 267
 268 /**
 269  * Set up the language to be output
 270  * if $do_search is true, then scan the browser information
 271  * for a possible language that we know
 272  *
 273  * Function sets system locale environment (LC_ALL, LANG, LANGUAGE),
 274  * gettext translation bindings and html header information.
 275  *
 276  * Function returns error codes, if there is some fatal error.
 277  *  0 = no error,
 278  *  1 = mbstring support is not present,
 279  *  2 = mbstring support is not present, user's translation reverted to en_US.
 280  *
 281  * @param string $sm_language translation used by user's interface
 282  * @param bool $do_search use browser's preferred language detection functions. Defaults to false.
 283  * @param bool $default set $sm_language to $squirrelmail_default_language if language detection fails or language is not set. Defaults to false.
 284  * @return int function execution error codes.
 285  */
 286 function set_up_language($sm_language, $do_search = false, $default = false) {
 287
 288     static $SetupAlready = 0;
 289     global $use_gettext, $languages,
 290            $squirrelmail_language, $squirrelmail_default_language, $default_charset,
 291            $sm_notAlias, $username, $data_dir;
 292
 293     if ($SetupAlready) {
 294         return;
 295     }
 296
 297     $SetupAlready = TRUE;
 298     sqgetGlobalVar('HTTP_ACCEPT_LANGUAGE',  $accept_lang, SQ_SERVER);
 299
 300     /**
 301      * If function is asked to detect preferred language
 302      *  OR squirrelmail default language is set to empty string
 303      *    AND
 304      * squirrelmail language ($sm_language) is empty string
 305      * (not set in user's prefs and no cookie with language info)
 306      *    AND
 307      * browser provides list of preferred languages
 308      *  THEN
 309      * get preferred language from HTTP_ACCEPT_LANGUAGE header
 310      */
 311     if (($do_search || empty($squirrelmail_default_language)) &&
 312         ! $sm_language &&
 313         isset($accept_lang)) {
 314         // TODO: use more than one language, if first language is not available
 315         // FIXME: function assumes that string contains two or more characters.
 316         // FIXME: some languages use 5 chars
 317         $sm_language = substr($accept_lang, 0, 2);
 318     }
 319
 320     /**
 321      * If language preference is not set OR script asks to use default language
 322      *  AND
 323      * default squirrelmail language is not set to empty string
 324      *  THEN
 325      * use default squirrelmail language value from configuration.
 326      */
 327     if ((!$sm_language||$default) &&
 328         ! empty($squirrelmail_default_language)) {
 329         $squirrelmail_language = $squirrelmail_default_language;
 330         $sm_language = $squirrelmail_default_language;
 331     }
 332
 333     /** provide failsafe language when detection fails */
 334     if (! $sm_language) $sm_language='en_US';
 335
 336     $sm_notAlias = $sm_language;
 337
 338     // Catching removed translation
 339     // System reverts to English translation if user prefs contain translation
 340     // that is not available in $languages array
 341     if (!isset($languages[$sm_notAlias])) {
 342         $sm_notAlias="en_US";
 343     }
 344
 345     while (isset($languages[$sm_notAlias]['ALIAS'])) {
 346         $sm_notAlias = $languages[$sm_notAlias]['ALIAS'];
 347     }
 348
 349     if ( isset($sm_language) &&
 350          $use_gettext &&
 351          $sm_language != '' &&
 352          isset($languages[$sm_notAlias]['CHARSET']) ) {
 353         sq_bindtextdomain( 'squirrelmail', SM_PATH . 'locale/' );
 354         sq_textdomain( 'squirrelmail' );
 355
 356         // set codeset in order to avoid gettext charset conversions
 357         if (function_exists('bind_textdomain_codeset')) {
 358             // Japanese translation uses different internal charset
 359             if ($sm_notAlias == 'ja_JP') {
 360                 bind_textdomain_codeset ('squirrelmail', 'EUC-JP');
 361             } else {
 362                 bind_textdomain_codeset ('squirrelmail', $languages[$sm_notAlias]['CHARSET'] );
 363             }
 364         }
 365
 366         // Use LOCALE key, if it is set.
 367         if (isset($languages[$sm_notAlias]['LOCALE'])){
 368             $longlocale=$languages[$sm_notAlias]['LOCALE'];
 369         } else {
 370             $longlocale=$sm_notAlias;
 371         }
 372
 373         // try setting locale
 374         $retlocale=sq_setlocale(LC_ALL, $longlocale);
 375
 376         // check if locale is set and assign that locale to $longlocale
 377         // in order to use it in putenv calls.
 378         if (! is_bool($retlocale)) {
 379             $longlocale=$retlocale;
 380         } elseif (is_array($longlocale)) {
 381             // setting of all locales failed.
 382             // we need string instead of array used in LOCALE key.
 383             $longlocale=$sm_notAlias;
 384         }
 385
 386         if ( !((bool)ini_get('safe_mode')) &&
 387              getenv( 'LC_ALL' ) != $longlocale ) {
 388             putenv( "LC_ALL=$longlocale" );
 389             putenv( "LANG=$longlocale" );
 390             putenv( "LANGUAGE=$longlocale" );
 391             putenv( "LC_NUMERIC=C" );
 392             if ($sm_notAlias=='tr_TR') putenv( "LC_CTYPE=C" );
 393         }
 394         // Workaround for plugins that use numbers with floating point
 395         // It might be removed if plugins use correct decimal delimiters
 396         // according to locale settings.
 397         setlocale(LC_NUMERIC, 'C');
 398         // Workaround for specific Turkish strtolower/strtoupper rules.
 399         // Many functions expect English conversion rules.
 400         if ($sm_notAlias=='tr_TR') setlocale(LC_CTYPE,'C');
 401
 402         // Set text direction/alignment variables
 403         // These don't appear to be used... are they safe to remove?
 404         if (isset($languages[$sm_notAlias]['DIR']) &&
 405             $languages[$sm_notAlias]['DIR'] == 'rtl') {
 406             /**
 407              * Text direction
 408              * @global string $text_direction
 409              */
 410             $text_direction='rtl';
 411             /**
 412              * Left alignment
 413              * @global string $left_align
 414              */
 415             $left_align='right';
 416             /**
 417              * Right alignment
 418              * @global string $right_align
 419              */
 420             $right_align='left';
 421         } else {
 422             $text_direction='ltr';
 423             $left_align='left';
 424             $right_align='right';
 425         }
 426
 427         $squirrelmail_language = $sm_notAlias;
 428         if ($squirrelmail_language == 'ja_JP') {
 429             header ('Content-Type: text/html; charset=EUC-JP');
 430             if (!function_exists('mb_internal_encoding')) {
 431                 // Error messages can't be displayed here
 432                 $error = 1;
 433                 // Revert to English if possible.
 434                 if (function_exists('setPref')  && $username!='' && $data_dir!="") {
 435                     setPref($data_dir, $username, 'language', "en_US");
 436                     $error = 2;
 437                 }
 438                 // stop further execution in order not to get php errors on mb_internal_encoding().
 439                 return $error;
 440             }
 441             if (function_exists('mb_language')) {
 442                 mb_language('Japanese');
 443             }
 444             mb_internal_encoding('EUC-JP');
 445             mb_http_output('pass');
 446         } elseif ($squirrelmail_language == 'en_US') {
 447             header( 'Content-Type: text/html; charset=' . $default_charset );
 448         } else {
 449             header( 'Content-Type: text/html; charset=' . $languages[$sm_notAlias]['CHARSET'] );
 450         }
 451         /**
 452          * mbstring.func_overload fix (#929644).
 453          *
 454          * php mbstring extension can replace standard string functions with their multibyte
 455          * equivalents. See http://www.php.net/ref.mbstring#mbstring.overload. This feature
 456          * was added in php v.4.2.0
 457          *
 458          * Some SquirrelMail functions work with 8bit strings in bytes. If interface is forced
 459          * to use mbstring functions and mbstring internal encoding is set to multibyte charset,
 460          * interface can't trust regular string functions. Due to mbstring overloading design
 461          * limits php scripts can't control this setting.
 462          *
 463          * This hack should fix some issues related to 8bit strings in passwords. Correct fix is
 464          * to disable mbstring overloading. Japanese translation uses different internal encoding.
 465          */
 466         if ($squirrelmail_language != 'ja_JP' &&
 467             function_exists('mb_internal_encoding') &&
 468             check_php_version(4,2,0) &&
 469             (int)ini_get('mbstring.func_overload')!=0) {
 470             mb_internal_encoding('pass');
 471         }
 472     }
 473     return 0;
 474 }
 475
 476 /**
 477  * Sets default_charset variable according to the one that is used by user's translations.
 478  *
 479  * Function changes global $default_charset variable in order to be sure, that it
 480  * contains charset used by user's translation. Sanity of $squirrelmail_language
 481  * and $default_charset combination is also tested.
 482  *
 483  * There can be a $default_charset setting in the
 484  * config.php file, but the user may have a different language
 485  * selected for a user interface. This function checks the
 486  * language selected by the user and tags the outgoing messages
 487  * with the appropriate charset corresponding to the language
 488  * selection. This is "more right" (tm), than just stamping the
 489  * message blindly with the system-wide $default_charset.
 490  */
 491 function set_my_charset(){
 492     global $data_dir, $username, $default_charset, $languages, $squirrelmail_language;
 493
 494     $my_language = getPref($data_dir, $username, 'language');
 495     if (!$my_language) {
 496         $my_language = $squirrelmail_language ;
 497     }
 498     // Catch removed translation
 499     if (!isset($languages[$my_language])) {
 500         $my_language="en_US";
 501     }
 502     while (isset($languages[$my_language]['ALIAS'])) {
 503         $my_language = $languages[$my_language]['ALIAS'];
 504     }
 505     $my_charset = $languages[$my_language]['CHARSET'];
 506     if ($my_language!='en_US') {
 507         $default_charset = $my_charset;
 508     }
 509 }
 510
 511 /**************************
 512  * Japanese extra functions
 513  **************************/
 514
 515 /**
 516  * Japanese decoding function
 517  *
 518  * converts string to euc-jp, if string uses JIS, EUC-JP, ShiftJIS or UTF-8
 519  * charset. Needs mbstring support in php.
 520  * @param string $ret text, that has to be converted
 521  * @return string converted string
 522  * @since 1.5.1
 523  */
 524 function japanese_xtra_decode($ret) {
 525     if (function_exists('mb_detect_encoding')) {
 526         $detect_encoding = @mb_detect_encoding($ret);
 527         if ($detect_encoding == 'JIS' ||
 528             $detect_encoding == 'EUC-JP' ||
 529             $detect_encoding == 'SJIS' ||
 530             $detect_encoding == 'UTF-8') {
 531
 532             $ret = mb_convert_kana(mb_convert_encoding($ret, 'EUC-JP', 'AUTO'), "KV");
 533         }
 534     }
 535     return $ret;
 536 }
 537
 538 /**
 539  * Japanese encoding function
 540  *
 541  * converts string to jis, if string uses JIS, EUC-JP, ShiftJIS or UTF-8
 542  * charset. Needs mbstring support in php.
 543  * @param string $ret text, that has to be converted
 544  * @return string converted text
 545  * @since 1.5.1
 546  */
 547 function japanese_xtra_encode($ret) {
 548     if (function_exists('mb_detect_encoding')) {
 549         $detect_encoding = @mb_detect_encoding($ret);
 550         if ($detect_encoding == 'JIS' ||
 551             $detect_encoding == 'EUC-JP' ||
 552             $detect_encoding == 'SJIS' ||
 553             $detect_encoding == 'UTF-8') {
 554
 555             $ret = mb_convert_encoding(mb_convert_kana($ret, "KV"), 'JIS', 'AUTO');
 556         }
 557     }
 558     return $ret;
 559 }
 560
 561 /**
 562  * Japanese header encoding function
 563  *
 564  * creates base64 encoded header in iso-2022-jp charset
 565  * @param string $ret text, that has to be converted
 566  * @return string mime base64 encoded string
 567  * @since 1.5.1
 568  */
 569 function japanese_xtra_encodeheader($ret) {
 570     if (function_exists('mb_detect_encoding')) {
 571         $result = '';
 572         if (strlen($ret) > 0) {
 573             $tmpstr = mb_substr($ret, 0, 1);
 574             $prevcsize = strlen($tmpstr);
 575             for ($i = 1; $i < mb_strlen($ret); $i++) {
 576                 $tmp = mb_substr($ret, $i, 1);
 577                 if (strlen($tmp) == $prevcsize) {
 578                     $tmpstr .= $tmp;
 579                 } else {
 580                     if ($prevcsize == 1) {
 581                         $result .= $tmpstr;
 582                     } else {
 583                         $result .= str_replace(' ', '',
 584                                                mb_encode_mimeheader($tmpstr,'iso-2022-jp','B',''));
 585                     }
 586                     $tmpstr = $tmp;
 587                     $prevcsize = strlen($tmp);
 588                 }
 589             }
 590             if (strlen($tmpstr)) {
 591                 if (strlen(mb_substr($tmpstr, 0, 1)) == 1)
 592                     $result .= $tmpstr;
 593                 else
 594                     $result .= str_replace(' ', '',
 595                                            mb_encode_mimeheader($tmpstr,'iso-2022-jp','B',''));
 596             }
 597         }
 598         $ret = $result;
 599     }
 600     return $ret;
 601 }
 602
 603 /**
 604  * Japanese header decoding function
 605  *
 606  * return human readable string from mime header. string is returned in euc-jp
 607  * charset.
 608  * @param string $ret header string
 609  * @return string decoded header string
 610  * @since 1.5.1
 611  */
 612 function japanese_xtra_decodeheader($ret) {
 613     if (function_exists('mb_detect_encoding')) {
 614         $ret = str_replace("\t", "", $ret);
 615         if (eregi('=\\?([^?]+)\\?(q|b)\\?([^?]+)\\?=', $ret))
 616             $ret = @mb_decode_mimeheader($ret);
 617         $ret = @mb_convert_encoding($ret, 'EUC-JP', 'AUTO');
 618     }
 619     return $ret;
 620 }
 621
 622 /**
 623  * Japanese downloaded filename processing function
 624  *
 625  * Returns shift-jis or euc-jp encoded file name
 626  * @param string $ret string
 627  * @param string $useragent browser
 628  * @return string converted string
 629  * @since 1.5.1
 630  */
 631 function japanese_xtra_downloadfilename($ret,$useragent) {
 632     if (function_exists('mb_detect_encoding')) {
 633         if (strstr($useragent, 'Windows') !== false ||
 634             strstr($useragent, 'Mac_') !== false) {
 635             $ret = mb_convert_encoding($ret, 'SJIS', 'AUTO');
 636         } else {
 637             $ret = mb_convert_encoding($ret, 'EUC-JP', 'AUTO');
 638         }
 639     }
 640     return $ret;
 641 }
 642
 643 /**
 644  * Japanese wordwrap function
 645  *
 646  * wraps text at set number of symbols
 647  * @param string $ret text
 648  * @param integer $wrap number of symbols per line
 649  * @return string wrapped text
 650  * @since 1.5.1
 651  */
 652 function japanese_xtra_wordwrap($ret,$wrap) {
 653     if (function_exists('mb_detect_encoding')) {
 654         $no_begin = "\x21\x25\x29\x2c\x2e\x3a\x3b\x3f\x5d\x7d\xa1\xf1\xa1\xeb\xa1" .
 655             "\xc7\xa1\xc9\xa2\xf3\xa1\xec\xa1\xed\xa1\xee\xa1\xa2\xa1\xa3\xa1\xb9" .
 656             "\xa1\xd3\xa1\xd5\xa1\xd7\xa1\xd9\xa1\xdb\xa1\xcd\xa4\xa1\xa4\xa3\xa4" .
 657             "\xa5\xa4\xa7\xa4\xa9\xa4\xc3\xa4\xe3\xa4\xe5\xa4\xe7\xa4\xee\xa1\xab" .
 658             "\xa1\xac\xa1\xb5\xa1\xb6\xa5\xa1\xa5\xa3\xa5\xa5\xa5\xa7\xa5\xa9\xa5" .
 659             "\xc3\xa5\xe3\xa5\xe5\xa5\xe7\xa5\xee\xa5\xf5\xa5\xf6\xa1\xa6\xa1\xbc" .
 660             "\xa1\xb3\xa1\xb4\xa1\xaa\xa1\xf3\xa1\xcb\xa1\xa4\xa1\xa5\xa1\xa7\xa1" .
 661             "\xa8\xa1\xa9\xa1\xcf\xa1\xd1";
 662         // This don't appear to be used... is it safe to remove?
 663         $no_end = "\x5c\x24\x28\x5b\x7b\xa1\xf2\x5c\xa1\xc6\xa1\xc8\xa1\xd2\xa1" .
 664             "\xd4\xa1\xd6\xa1\xd8\xa1\xda\xa1\xcc\xa1\xf0\xa1\xca\xa1\xce\xa1\xd0\xa1\xef";
 665
 666         if (strlen($ret) >= $wrap &&
 667             substr($ret, 0, 1) != '>' &&
 668             strpos($ret, 'http://') === FALSE &&
 669             strpos($ret, 'https://') === FALSE &&
 670             strpos($ret, 'ftp://') === FALSE) {
 671
 672             $ret = mb_convert_kana($ret, "KV");
 673
 674             $line_new = '';
 675             $ptr = 0;
 676
 677             while ($ptr < strlen($ret) - 1) {
 678                 $l = mb_strcut($ret, $ptr, $wrap);
 679                 $ptr += strlen($l);
 680                 $tmp = $l;
 681
 682                 $l = mb_strcut($ret, $ptr, 2);
 683                 while (strlen($l) != 0 && mb_strpos($no_begin, $l) !== FALSE ) {
 684                     $tmp .= $l;
 685                     $ptr += strlen($l);
 686                     $l = mb_strcut($ret, $ptr, 1);
 687                 }
 688                 $line_new .= $tmp;
 689                 if ($ptr < strlen($ret) - 1)
 690                     $line_new .= "\n";
 691             }
 692             $ret = $line_new;
 693         }
 694     }
 695     return $ret;
 696 }
 697
 698 /**
 699  * Japanese imap folder name encoding function
 700  *
 701  * converts folder name from euc-jp to utf7-imap
 702  * @param string $ret folder name
 703  * @return string converted folder name
 704  * @since 1.5.1
 705  */
 706 function japanese_xtra_utf7_imap_encode($ret){
 707     if (function_exists('mb_detect_encoding')) {
 708         $ret = mb_convert_encoding($ret, 'UTF7-IMAP', 'EUC-JP');
 709     }
 710     return $ret;
 711 }
 712
 713 /**
 714  * Japanese imap folder name decoding function
 715  *
 716  * converts folder name from utf7-imap to euc-jp.
 717  * @param string $ret folder name in utf7-imap
 718  * @return string converted folder name
 719  * @since 1.5.1
 720  */
 721 function japanese_xtra_utf7_imap_decode($ret) {
 722     if (function_exists('mb_detect_encoding')) {
 723         $ret = mb_convert_encoding($ret, 'EUC-JP', 'UTF7-IMAP');
 724     }
 725     return $ret;
 726 }
 727
 728 /**
 729  * Japanese string trimming function
 730  *
 731  * trims string to defined number of symbols
 732  * @param string $ret string
 733  * @param integer $width number of symbols
 734  * @return string trimmed string
 735  * @since 1.5.1
 736  */
 737 function japanese_xtra_strimwidth($ret,$width) {
 738     if (function_exists('mb_detect_encoding')) {
 739         $ret = mb_strimwidth($ret, 0, $width, '...');
 740     }
 741     return $ret;
 742 }
 743
 744 /********************************
 745  * Korean charset extra functions
 746  ********************************/
 747
 748 /**
 749  * Korean downloaded filename processing functions
 750  *
 751  * @param string default return value
 752  * @return string
 753  * @since 1.5.1
 754  */
 755 function korean_xtra_downloadfilename($ret) {
 756     $ret = str_replace("\x0D\x0A", '', $ret);  /* Hanmail's CR/LF Clear */
 757     for ($i=0;$i<strlen($ret);$i++) {
 758         if ($ret[$i] >= "\xA1" && $ret[$i] <= "\xFE") {   /* 0xA1 - 0XFE are Valid */
 759             $i++;
 760             continue;
 761         } else if (($ret[$i] >= 'a' && $ret[$i] <= 'z') || /* From Original ereg_replace in download.php */
 762                    ($ret[$i] >= 'A' && $ret[$i] <= 'Z') ||
 763                    ($ret[$i] == '.') || ($ret[$i] == '-')) {
 764             continue;
 765         } else {
 766             $ret[$i] = '_';
 767         }
 768     }
 769     return $ret;
 770 }
 771
 772 /**
 773  * Replaces non-braking spaces inserted by some browsers with regular space
 774  *
 775  * This function can be used to replace non-braking space symbols
 776  * that are inserted in forms by some browsers instead of normal
 777  * space symbol.
 778  *
 779  * @param string $string Text that needs to be cleaned
 780  * @param string $charset Charset used in text
 781  * @return string Cleaned text
 782  */
 783 function cleanup_nbsp($string,$charset) {
 784
 785   // reduce number of case statements
 786   if (stristr('iso-8859-',substr($charset,0,9))){
 787     $output_charset="iso-8859-x";
 788   }
 789   if (stristr('windows-125',substr($charset,0,11))){
 790     $output_charset="cp125x";
 791   }
 792   if (stristr('koi8',substr($charset,0,4))){
 793     $output_charset="koi8-x";
 794   }
 795   if (! isset($output_charset)){
 796     $output_charset=strtolower($charset);
 797   }
 798
 799 // where is non-braking space symbol
 800 switch($output_charset):
 801  case "iso-8859-x":
 802  case "cp125x":
 803  case "iso-2022-jp":
 804   $nbsp="\xA0";
 805   break;
 806  case "koi8-x":
 807    $nbsp="\x9A";
 808    break;
 809  case "utf-8":
 810    $nbsp="\xC2\xA0";
 811    break;
 812  default:
 813    // don't change string if charset is unmatched
 814    return $string;
 815 endswitch;
 816
 817 // return space instead of non-braking space.
 818  return str_replace($nbsp,' ',$string);
 819 }
 820
 821 /**
 822  * Function informs if it is safe to convert given charset to the one that is used by user.
 823  *
 824  * It is safe to use conversion only if user uses utf-8 encoding and when
 825  * converted charset is similar to the one that is used by user.
 826  *
 827  * @param string $input_charset Charset of text that needs to be converted
 828  * @return bool is it possible to convert to user's charset
 829  */
 830 function is_conversion_safe($input_charset) {
 831   global $languages, $sm_notAlias, $default_charset, $lossy_encoding;
 832
 833     if (isset($lossy_encoding) && $lossy_encoding )
 834         return true;
 835
 836  // convert to lower case
 837  $input_charset = strtolower($input_charset);
 838
 839  // Is user's locale Unicode based ?
 840  if ( $default_charset == "utf-8" ) {
 841    return true;
 842  }
 843
 844  // Charsets that are similar
 845 switch ($default_charset):
 846 case "windows-1251":
 847       if ( $input_charset == "iso-8859-5" ||
 848            $input_charset == "koi8-r" ||
 849            $input_charset == "koi8-u" ) {
 850         return true;
 851      } else {
 852         return false;
 853      }
 854 case "windows-1257":
 855   if ( $input_charset == "iso-8859-13" ||
 856        $input_charset == "iso-8859-4" ) {
 857     return true;
 858   } else {
 859     return false;
 860   }
 861 case "iso-8859-4":
 862   if ( $input_charset == "iso-8859-13" ||
 863        $input_charset == "windows-1257" ) {
 864      return true;
 865   } else {
 866      return false;
 867   }
 868 case "iso-8859-5":
 869   if ( $input_charset == "windows-1251" ||
 870        $input_charset == "koi8-r" ||
 871        $input_charset == "koi8-u" ) {
 872      return true;
 873   } else {
 874      return false;
 875   }
 876 case "iso-8859-13":
 877   if ( $input_charset == "iso-8859-4" ||
 878        $input_charset == "windows-1257" ) {
 879      return true;
 880   } else {
 881      return false;
 882   }
 883 case "koi8-r":
 884   if ( $input_charset == "windows-1251" ||
 885        $input_charset == "iso-8859-5" ||
 886        $input_charset == "koi8-u" ) {
 887      return true;
 888   } else {
 889      return false;
 890   }
 891 case "koi8-u":
 892   if ( $input_charset == "windows-1251" ||
 893        $input_charset == "iso-8859-5" ||
 894        $input_charset == "koi8-r" ) {
 895      return true;
 896   } else {
 897      return false;
 898   }
 899 default:
 900    return false;
 901 endswitch;
 902 }
 903
 904
 905 /* ------------------------------ main --------------------------- */
 906
 907 global $squirrelmail_language, $languages, $use_gettext;
 908
 909 if (! sqgetGlobalVar('squirrelmail_language',$squirrelmail_language,SQ_COOKIE)) {
 910     $squirrelmail_language = '';
 911 }
 912
 913 /**
 914  * Array specifies the available translations.
 915  *
 916  * Structure of array:
 917  * $languages['language']['variable'] = 'value'
 918  *
 919  * Possible 'variable' names:
 920  *  NAME      - Translation name in English
 921  *  CHARSET   - Encoding used by translation
 922  *  ALIAS     - used when 'language' is only short name and 'value' should provide long language name
 923  *  ALTNAME   - Native translation name. Any 8bit symbols must be html encoded.
 924  *  LOCALE    - Full locale name (in xx_XX.charset format). It can use array with several locale names since 1.4.5 and 1.5.1
 925  *  DIR       - Text direction. Used to define Right-to-Left languages. Possible values 'rtl' or 'ltr'. If undefined - defaults to 'ltr'
 926  *  XTRA_CODE - translation uses special functions. See doc/i18n.txt
 927  *
 928  * Each 'language' definition requires NAME+CHARSET or ALIAS variables.
 929  *
 930  * @todo TODO: make language loading modular (similar to plugins, with locale/xx_XX/setup.php files)
 931  * @name $languages
 932  * @global array $languages
 933  */
 934 $languages['bg_BG']['NAME']    = 'Bulgarian';
 935 $languages['bg_BG']['ALTNAME'] = '&#1041;&#1098;&#1083;&#1075;&#1072;&#1088;&#1089;&#1082;&#1080;';
 936 $languages['bg_BG']['CHARSET'] = 'windows-1251';
 937 $languages['bg_BG']['LOCALE']  = 'bg_BG.CP1251';
 938 $languages['bg']['ALIAS'] = 'bg_BG';
 939
 940 $languages['bn_IN']['NAME']    = 'Bengali';
 941 $languages['bn_IN']['CHARSET'] = 'utf-8';
 942 $languages['bn_IN']['LOCALE']  = 'bn_IN.UTF-8';
 943 $languages['bn_BD']['ALIAS'] = 'bn_IN';
 944 $languages['bn']['ALIAS'] = 'bn_IN';
 945
 946 $languages['ca_ES']['NAME']    = 'Catalan';
 947 $languages['ca_ES']['CHARSET'] = 'iso-8859-1';
 948 $languages['ca_ES']['LOCALE']  = array('ca_ES.ISO8859-1','ca_ES.ISO-8859-1','ca_ES');
 949 $languages['ca']['ALIAS'] = 'ca_ES';
 950
 951 $languages['cs_CZ']['NAME']    = 'Czech';
 952 $languages['cs_CZ']['ALTNAME'] = '&#268;e&scaron;tina';
 953 $languages['cs_CZ']['CHARSET'] = 'iso-8859-2';
 954 $languages['cs_CZ']['LOCALE']  = array('cs_CZ.ISO8859-2','cs_CZ.ISO-8859-2','cs_CZ');
 955 $languages['cs']['ALIAS']      = 'cs_CZ';
 956
 957 $languages['cy_GB']['NAME']    = 'Welsh';
 958 $languages['cy_GB']['ALTNAME'] = 'Cymraeg';
 959 $languages['cy_GB']['CHARSET'] = 'iso-8859-1';
 960 $languages['cy_GB']['LOCALE']  = array('cy_GB.ISO8859-1','cy_GB.ISO-8859-1','cy_GB');
 961 $languages['cy']['ALIAS'] = 'cy_GB';
 962
 963 // Danish locale is da_DK.
 964 $languages['da_DK']['NAME']    = 'Danish';
 965 $languages['da_DK']['ALTNAME'] = 'Dansk';
 966 $languages['da_DK']['CHARSET'] = 'iso-8859-1';
 967 $languages['da_DK']['LOCALE']  = array('da_DK.ISO8859-1','da_DK.ISO-8859-1','da_DK');
 968 $languages['da']['ALIAS'] = 'da_DK';
 969
 970 $languages['de_DE']['NAME']    = 'German';
 971 $languages['de_DE']['ALTNAME'] = 'Deutsch';
 972 $languages['de_DE']['CHARSET'] = 'iso-8859-1';
 973 $languages['de_DE']['LOCALE']  = array('de_DE.ISO8859-1','de_DE.ISO-8859-1','de_DE');
 974 $languages['de']['ALIAS'] = 'de_DE';
 975
 976 $languages['el_GR']['NAME']    = 'Greek';
 977 $languages['el_GR']['ALTNAME'] = '&Epsilon;&lambda;&lambda;&eta;&nu;&iota;&kappa;&#940;';
 978 $languages['el_GR']['CHARSET'] = 'iso-8859-7';
 979 $languages['el_GR']['LOCALE']  = array('el_GR.ISO8859-7','el_GR.ISO-8859-7','el_GR');
 980 $languages['el']['ALIAS'] = 'el_GR';
 981
 982 $languages['en_GB']['NAME']    = 'British';
 983 $languages['en_GB']['CHARSET'] = 'iso-8859-15';
 984 $languages['en_GB']['LOCALE']  = array('en_GB.ISO8859-15','en_GB.ISO-8859-15','en_GB');
 985
 986 $languages['en_US']['NAME']    = 'English';
 987 $languages['en_US']['CHARSET'] = 'iso-8859-1';
 988 $languages['en_US']['LOCALE']  = 'en_US.ISO8859-1';
 989 $languages['en']['ALIAS'] = 'en_US';
 990
 991 $languages['es_ES']['NAME']    = 'Spanish';
 992 $languages['es_ES']['ALTNAME'] = 'Espa&ntilde;ol';
 993 $languages['es_ES']['CHARSET'] = 'iso-8859-1';
 994 $languages['es_ES']['LOCALE']  = array('es_ES.ISO8859-1','es_ES.ISO-8859-1','es_ES');
 995 $languages['es']['ALIAS'] = 'es_ES';
 996
 997 $languages['et_EE']['NAME']    = 'Estonian';
 998 $languages['et_EE']['CHARSET'] = 'iso-8859-15';
 999 $languages['et_EE']['LOCALE']  = array('et_EE.ISO8859-15','et_EE.ISO-8859-15','et_EE');
1000 $languages['et']['ALIAS'] = 'et_EE';
1001
1002 $languages['eu_ES']['NAME']    = 'Basque';
1003 $languages['eu_ES']['CHARSET'] = 'iso-8859-1';
1004 $languages['eu_ES']['LOCALE']  = array('eu_ES.ISO8859-1','eu_ES.ISO-8859-1','eu_ES');
1005 $languages['eu']['ALIAS'] = 'eu_ES';
1006
1007 $languages['fo_FO']['NAME']    = 'Faroese';
1008 $languages['fo_FO']['CHARSET'] = 'iso-8859-1';
1009 $languages['fo_FO']['LOCALE']  = array('fo_FO.ISO8859-1','fo_FO.ISO-8859-1','fo_FO');
1010 $languages['fo']['ALIAS'] = 'fo_FO';
1011
1012 $languages['fi_FI']['NAME']    = 'Finnish';
1013 $languages['fi_FI']['ALTNAME'] = 'Suomi';
1014 $languages['fi_FI']['CHARSET'] = 'iso-8859-1';
1015 $languages['fi_FI']['LOCALE']  = array('fi_FI.ISO8859-1','fi_FI.ISO-8859-1','fi_FI');
1016 $languages['fi']['ALIAS'] = 'fi_FI';
1017
1018 $languages['fr_FR']['NAME']    = 'French';
1019 $languages['fr_FR']['ALTNAME'] = 'Fran&#231;ais';
1020 $languages['fr_FR']['CHARSET'] = 'iso-8859-1';
1021 $languages['fr_FR']['LOCALE']  = array('fr_FR.ISO8859-1','fr_FR.ISO-8859-1','fr_FR');
1022 $languages['fr']['ALIAS'] = 'fr_FR';
1023
1024 $languages['hr_HR']['NAME']    = 'Croatian';
1025 $languages['hr_HR']['CHARSET'] = 'iso-8859-2';
1026 $languages['hr_HR']['LOCALE']  = array('hr_HR.ISO8859-2','hr_HR.ISO-8859-2','hr_HR');
1027 $languages['hr']['ALIAS'] = 'hr_HR';
1028
1029 $languages['hu_HU']['NAME']    = 'Hungarian';
1030 $languages['hu_HU']['ALTNAME'] = 'Magyar';
1031 $languages['hu_HU']['CHARSET'] = 'iso-8859-2';
1032 $languages['hu_HU']['LOCALE']  = array('hu_HU.ISO8859-2','hu_HU.ISO-8859-2','hu_HU');
1033 $languages['hu']['ALIAS'] = 'hu_HU';
1034
1035 $languages['id_ID']['NAME']    = 'Indonesian';
1036 $languages['id_ID']['ALTNAME'] = 'Bahasa Indonesia';
1037 $languages['id_ID']['CHARSET'] = 'iso-8859-1';
1038 $languages['id_ID']['LOCALE']  = array('id_ID.ISO8859-1','id_ID.ISO-8859-1','id_ID');
1039 $languages['id']['ALIAS'] = 'id_ID';
1040
1041 $languages['is_IS']['NAME']    = 'Icelandic';
1042 $languages['is_IS']['ALTNAME'] = '&Iacute;slenska';
1043 $languages['is_IS']['CHARSET'] = 'iso-8859-1';
1044 $languages['is_IS']['LOCALE']  = array('is_IS.ISO8859-1','is_IS.ISO-8859-1','is_IS');
1045 $languages['is']['ALIAS'] = 'is_IS';
1046
1047 $languages['it_IT']['NAME']    = 'Italian';
1048 $languages['it_IT']['CHARSET'] = 'iso-8859-1';
1049 $languages['it_IT']['LOCALE']  = array('it_IT.ISO8859-1','it_IT.ISO-8859-1','it_IT');
1050 $languages['it']['ALIAS'] = 'it_IT';
1051
1052 $languages['ja_JP']['NAME']    = 'Japanese';
1053 $languages['ja_JP']['ALTNAME'] = '&#26085;&#26412;&#35486;';
1054 $languages['ja_JP']['CHARSET'] = 'iso-2022-jp';
1055 $languages['ja_JP']['LOCALE'] = 'ja_JP.EUC-JP';
1056 $languages['ja_JP']['XTRA_CODE'] = 'japanese_xtra';
1057 $languages['ja']['ALIAS'] = 'ja_JP';
1058
1059 $languages['ko_KR']['NAME']    = 'Korean';
1060 $languages['ko_KR']['CHARSET'] = 'euc-KR';
1061 $languages['ko_KR']['LOCALE']  = 'ko_KR.EUC-KR';
1062 $languages['ko_KR']['XTRA_CODE'] = 'korean_xtra';
1063 $languages['ko']['ALIAS'] = 'ko_KR';
1064
1065 $languages['lt_LT']['NAME']    = 'Lithuanian';
1066 $languages['lt_LT']['ALTNAME'] = 'Lietuvi&#371;';
1067 $languages['lt_LT']['CHARSET'] = 'utf-8';
1068 $languages['lt_LT']['LOCALE'] = 'lt_LT.UTF-8';
1069 $languages['lt']['ALIAS'] = 'lt_LT';
1070
1071 $languages['nl_NL']['NAME']    = 'Dutch';
1072 $languages['nl_NL']['ALTNAME'] = 'Nederlands';
1073 $languages['nl_NL']['CHARSET'] = 'iso-8859-1';
1074 $languages['nl_NL']['LOCALE']  = array('nl_NL.ISO8859-1','nl_NL.ISO-8859-1','nl_NL');
1075 $languages['nl']['ALIAS'] = 'nl_NL';
1076
1077 $languages['ms_MY']['NAME']    = 'Malay';
1078 $languages['ms_MY']['ALTNAME'] = 'Bahasa Melayu';
1079 $languages['ms_MY']['CHARSET'] = 'iso-8859-1';
1080 $languages['ms_MY']['LOCALE']  = array('ms_MY.ISO8859-1','ms_MY.ISO-8859-1','ms_MY');
1081 $languages['my']['ALIAS'] = 'ms_MY';
1082
1083 $languages['nb_NO']['NAME']    = 'Norwegian (Bokm&aring;l)';
1084 $languages['nb_NO']['ALTNAME'] = 'Norsk (Bokm&aring;l)';
1085 $languages['nb_NO']['CHARSET'] = 'iso-8859-1';
1086 $languages['nb_NO']['LOCALE']  = array('nb_NO.ISO8859-1','nb_NO.ISO-8859-1','nb_NO');
1087 $languages['nb']['ALIAS'] = 'nb_NO';
1088
1089 $languages['nn_NO']['NAME']    = 'Norwegian (Nynorsk)';
1090 $languages['nn_NO']['ALTNAME'] = 'Norsk (Nynorsk)';
1091 $languages['nn_NO']['CHARSET'] = 'iso-8859-1';
1092 $languages['nn_NO']['LOCALE']  = array('nn_NO.ISO8859-1','nn_NO.ISO-8859-1','nn_NO');
1093
1094 $languages['pl_PL']['NAME']    = 'Polish';
1095 $languages['pl_PL']['ALTNAME'] = 'Polski';
1096 $languages['pl_PL']['CHARSET'] = 'iso-8859-2';
1097 $languages['pl_PL']['LOCALE']  = array('pl_PL.ISO8859-2','pl_PL.ISO-8859-2','pl_PL');
1098 $languages['pl']['ALIAS'] = 'pl_PL';
1099
1100 $languages['pt_PT']['NAME'] = 'Portuguese (Portugal)';
1101 $languages['pt_PT']['CHARSET'] = 'iso-8859-1';
1102 $languages['pt_PT']['LOCALE']  = array('pt_PT.ISO8859-1','pt_PT.ISO-8859-1','pt_PT');
1103 $languages['pt']['ALIAS'] = 'pt_PT';
1104
1105 $languages['pt_BR']['NAME']    = 'Portuguese (Brazil)';
1106 $languages['pt_BR']['ALTNAME'] = 'Portugu&ecirc;s do Brasil';
1107 $languages['pt_BR']['CHARSET'] = 'iso-8859-1';
1108 $languages['pt_BR']['LOCALE']  = array('pt_BR.ISO8859-1','pt_BR.ISO-8859-1','pt_BR');
1109
1110 $languages['ro_RO']['NAME']    = 'Romanian';
1111 $languages['ro_RO']['ALTNAME'] = 'Rom&acirc;n&#259;';
1112 $languages['ro_RO']['CHARSET'] = 'iso-8859-2';
1113 $languages['ro_RO']['LOCALE']  = array('ro_RO.ISO8859-2','ro_RO.ISO-8859-2','ro_RO');
1114 $languages['ro']['ALIAS'] = 'ro_RO';
1115
1116 $languages['ru_RU']['NAME']    = 'Russian';
1117 $languages['ru_RU']['ALTNAME'] = '&#1056;&#1091;&#1089;&#1089;&#1082;&#1080;&#1081;';
1118 $languages['ru_RU']['CHARSET'] = 'utf-8';
1119 $languages['ru_RU']['LOCALE']  = 'ru_RU.UTF-8';
1120 $languages['ru']['ALIAS'] = 'ru_RU';
1121
1122 $languages['sk_SK']['NAME']    = 'Slovak';
1123 $languages['sk_SK']['CHARSET'] = 'iso-8859-2';
1124 $languages['sk_SK']['LOCALE']  = array('sk_SK.ISO8859-2','sk_SK.ISO-8859-2','sk_SK');
1125 $languages['sk']['ALIAS'] = 'sk_SK';
1126
1127 $languages['sl_SI']['NAME']    = 'Slovenian';
1128 $languages['sl_SI']['ALTNAME'] = 'Sloven&scaron;&#269;ina';
1129 $languages['sl_SI']['CHARSET'] = 'iso-8859-2';
1130 $languages['sl_SI']['LOCALE']  = array('sl_SI.ISO8859-2','sl_SI.ISO-8859-2','sl_SI');
1131 $languages['sl']['ALIAS'] = 'sl_SI';
1132
1133 $languages['sr_YU']['NAME']    = 'Serbian';
1134 $languages['sr_YU']['ALTNAME'] = 'Srpski';
1135 $languages['sr_YU']['CHARSET'] = 'iso-8859-2';
1136 $languages['sr_YU']['LOCALE']  = array('sr_YU.ISO8859-2','sr_YU.ISO-8859-2','sr_YU');
1137 $languages['sr']['ALIAS'] = 'sr_YU';
1138
1139 $languages['sv_SE']['NAME']    = 'Swedish';
1140 $languages['sv_SE']['ALTNAME'] = 'Svenska';
1141 $languages['sv_SE']['CHARSET'] = 'iso-8859-1';
1142 $languages['sv_SE']['LOCALE']  = array('sv_SE.ISO8859-1','sv_SE.ISO-8859-1','sv_SE');
1143 $languages['sv']['ALIAS'] = 'sv_SE';
1144
1145 $languages['th_TH']['NAME']    = 'Thai';
1146 $languages['th_TH']['CHARSET'] = 'tis-620';
1147 $languages['th_TH']['LOCALE']  = array('th_TH.TIS-620','th_TH');
1148 $languages['th']['ALIAS'] = 'th_TH';
1149
1150 $languages['tl_PH']['NAME']    = 'Tagalog';
1151 $languages['tl_PH']['CHARSET'] = 'iso-8859-1';
1152 $languages['tl_PH']['LOCALE']  = array('tl_PH.ISO8859-1','tl_PH.ISO-8859-1','tl_PH');
1153 $languages['tl']['ALIAS'] = 'tl_PH';
1154
1155 $languages['tr_TR']['NAME']    = 'Turkish';
1156 $languages['tr_TR']['CHARSET'] = 'iso-8859-9';
1157 $languages['tr_TR']['LOCALE']  = array('tr_TR.ISO8859-9','tr_TR.ISO-8859-9','tr_TR');
1158 $languages['tr']['ALIAS'] = 'tr_TR';
1159
1160 $languages['zh_TW']['NAME']    = 'Chinese Trad';
1161 $languages['zh_TW']['CHARSET'] = 'big5';
1162 $languages['zh_TW']['LOCALE']  = array('zh_TW.BIG5','zh_TW');
1163 $languages['tw']['ALIAS'] = 'zh_TW';
1164
1165 $languages['zh_CN']['NAME']    = 'Chinese Simp';
1166 $languages['zh_CN']['CHARSET'] = 'gb2312';
1167 $languages['zh_CN']['LOCALE']  = array('zh_CN.GB2312','zh_CN');
1168 $languages['cn']['ALIAS'] = 'zh_CN';
1169
1170 $languages['uk_UA']['NAME']    = 'Ukrainian';
1171 $languages['uk_UA']['CHARSET'] = 'koi8-u';
1172 $languages['uk_UA']['LOCALE']  = 'uk_UA.KOI8-U';
1173 $languages['uk']['ALIAS'] = 'uk_UA';
1174
1175 $languages['ru_UA']['NAME']    = 'Russian (Ukrainian)';
1176 $languages['ru_UA']['CHARSET'] = 'koi8-r';
1177 $languages['ru_UA']['LOCALE']  = 'ru_UA.KOI8-R';
1178
1179 /*
1180 $languages['vi_VN']['NAME']    = 'Vietnamese';
1181 $languages['vi_VN']['CHARSET'] = 'utf-8';
1182 $languages['vi']['ALIAS'] = 'vi_VN';
1183 */
1184
1185 // Right to left languages
1186 $languages['ar']['NAME']    = 'Arabic';
1187 $languages['ar']['CHARSET'] = 'windows-1256';
1188 $languages['ar']['DIR']     = 'rtl';
1189
1190 $languages['fa_IR']['NAME']    = 'Farsi';
1191 $languages['fa_IR']['CHARSET'] = 'utf-8';
1192 $languages['fa_IR']['DIR']     = 'rtl';
1193 $languages['fa_IR']['LOCALE']  = array('fa_IR.UTF-8','fa_IR');
1194 $languages['fa']['ALIAS']      = 'fa_IR';
1195
1196 $languages['he_IL']['NAME']    = 'Hebrew';
1197 $languages['he_IL']['CHARSET'] = 'windows-1255';
1198 $languages['he_IL']['LOCALE']  = array('he_IL.CP1255','he_IL');
1199 $languages['he_IL']['DIR']     = 'rtl';
1200 $languages['he']['ALIAS']      = 'he_IL';
1201
1202 $languages['ug']['NAME']    = 'Uighur';
1203 $languages['ug']['CHARSET'] = 'utf-8';
1204 $languages['ug']['DIR']     = 'rtl';
1205
1206 /* Detect whether gettext is installed. */
1207 $gettext_flags = 0;
1208 if (function_exists('_')) {
1209     $gettext_flags += 1;
1210 }
1211 if (function_exists('bindtextdomain')) {
1212     $gettext_flags += 2;
1213 }
1214 if (function_exists('textdomain')) {
1215     $gettext_flags += 4;
1216 }
1217 if (function_exists('ngettext')) {
1218     $gettext_flags += 8;
1219 }
1220
1221 /* If gettext is fully loaded, cool */
1222 if ($gettext_flags == 15) {
1223     $use_gettext = true;
1224 }
1225
1226 /* If ngettext support is missing, load it */
1227 elseif ($gettext_flags == 7) {
1228     $use_gettext = true;
1229     // load internal ngettext functions
1230     include_once(SM_PATH . 'class/l10n.class.php');
1231     include_once(SM_PATH . 'functions/ngettext.php');
1232 }
1233
1234 /* If we can fake gettext, try that */
1235 elseif ($gettext_flags == 0) {
1236     $use_gettext = true;
1237     include_once(SM_PATH . 'functions/gettext.php');
1238 } else {
1239     /* Uh-ho.  A weird install */
1240     if (! $gettext_flags & 1) {
1241       /**
1242        * Function is used as replacement in broken installs
1243        * @ignore
1244        */
1245         function _($str) {
1246             return $str;
1247         }
1248     }
1249     if (! $gettext_flags & 2) {
1250       /**
1251        * Function is used as replacement in broken installs
1252        * @ignore
1253        */
1254         function bindtextdomain() {
1255             return;
1256         }
1257     }
1258     if (! $gettext_flags & 4) {
1259       /**
1260        * Function is used as replacemet in broken installs
1261        * @ignore
1262        */
1263         function textdomain() {
1264             return;
1265         }
1266     }
1267     if (! $gettext_flags & 8) {
1268         /**
1269          * Function is used as replacemet in broken installs
1270          * @ignore
1271          */
1272         function ngettext($str,$str2,$number) {
1273             if ($number>1) {
1274                 return $str2;
1275             } else {
1276                 return $str;
1277             }
1278         }
1279     }
1280 }
1281 ?>