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