functions/i18n.php

   1 <?php
   2 /**
   3  * SquirrelMail internationalization functions
   4  *
   5  * Copyright (c) 1999-2004 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  * Converts string from given charset to charset, that can be displayed by user translation.
  64  *
  65  * Function by default returns html encoded strings, if translation uses different encoding.
  66  * If Japanese translation is used - function returns string converted to euc-jp
  67  * If iconv or recode functions are enabled and translation uses utf-8 - function returns utf-8 encoded string.
  68  * If $charset is not supported - function returns unconverted string.
  69  *
  70  * sanitizing of html tags is also done by this function.
  71  *
  72  * @param string $charset
  73  * @param string $string Text to be decoded
  74  * @return string decoded string
  75  */
  76 function charset_decode ($charset, $string) {
  77     global $languages, $squirrelmail_language, $default_charset;
  78     global $use_php_recode, $use_php_iconv, $aggressive_decoding;
  79
  80     if (isset($languages[$squirrelmail_language]['XTRA_CODE']) &&
  81         function_exists($languages[$squirrelmail_language]['XTRA_CODE'] . '_decode')) {
  82         $string = call_user_func($languages[$squirrelmail_language]['XTRA_CODE'] . '_decode', $string);
  83     }
  84
  85     $charset = strtolower($charset);
  86
  87     set_my_charset();
  88
  89     // Variables that allow to use functions without function_exist() calls
  90     if (! isset($use_php_recode) || $use_php_recode=="" ) {
  91         $use_php_recode=false; }
  92     if (! isset($use_php_iconv) || $use_php_iconv=="" ) {
  93         $use_php_iconv=false; }
  94
  95     // Don't do conversion if charset is the same.
  96     if ( $charset == strtolower($default_charset) )
  97         return htmlspecialchars($string);
  98
  99     // catch iso-8859-8-i thing
 100     if ( $charset == "iso-8859-8-i" )
 101         $charset = "iso-8859-8";
 102
 103     /*
 104      * Recode converts html special characters automatically if you use
 105      * 'charset..html' decoding. There is no documented way to put -d option
 106      * into php recode function call.
 107      */
 108     if ( $use_php_recode ) {
 109         if ( $default_charset == "utf-8" ) {
 110             // other charsets can be converted to utf-8 without loss.
 111             // and output string is smaller
 112             $string = recode_string($charset . "..utf-8",$string);
 113             return htmlspecialchars($string);
 114         } else {
 115             $string = recode_string($charset . "..html",$string);
 116             // recode does not convert single quote, htmlspecialchars does.
 117             $string = str_replace("'", '&#039;', $string);
 118             return $string;
 119         }
 120     }
 121
 122     // iconv functions does not have html target and can be used only with utf-8
 123     if ( $use_php_iconv && $default_charset=='utf-8') {
 124         $string = iconv($charset,$default_charset,$string);
 125         return htmlspecialchars($string);
 126     }
 127
 128     // If we don't use recode and iconv, we'll do it old way.
 129
 130     /* All HTML special characters are 7 bit and can be replaced first */
 131
 132     $string = htmlspecialchars ($string);
 133
 134     /* controls cpu and memory intensive decoding cycles */
 135     if (! isset($aggressive_decoding) || $aggressive_decoding=="" ) {
 136         $aggressive_decoding=false; }
 137
 138     $decode=fixcharset($charset);
 139     $decodefile=SM_PATH . 'functions/decode/' . $decode . '.php';
 140     if (file_exists($decodefile)) {
 141         include_once($decodefile);
 142         $ret = call_user_func('charset_decode_'.$decode, $string);
 143     } else {
 144         $ret = $string;
 145     }
 146     return( $ret );
 147 }
 148
 149 /**
 150  * Converts html string to given charset
 151  * @since 1.5.1
 152  * @param string $string
 153  * @param string $charset
 154  * @param boolean $htmlencode keep htmlspecialchars encoding
 155  * @param string
 156  */
 157 function charset_encode($string,$charset,$htmlencode=true) {
 158     global $default_charset;
 159
 160     $encode=fixcharset($charset);
 161     $encodefile=SM_PATH . 'functions/encode/' . $encode . '.php';
 162     if (file_exists($encodefile)) {
 163         include_once($encodefile);
 164         $ret = call_user_func('charset_encode_'.$encode, $string);
 165     } else {
 166         include_once(SM_PATH . 'functions/encode/us_ascii.php');
 167         $ret = charset_encode_us_ascii($string);
 168     }
 169
 170     /**
 171      * Undo html special chars, some places (like compose form) have
 172      * own sanitizing functions and don't need html symbols.
 173      * Undo chars only after encoding in order to prevent conversion of
 174      * html entities in plain text emails.
 175      */
 176     if (! $htmlencode ) {
 177         $ret = str_replace(array('&amp;','&gt;','&lt;','&quot;'),array('&','>','<','"'),$ret);
 178     }
 179     return( $ret );
 180 }
 181
 182 /**
 183  * Combined decoding and encoding functions
 184  *
 185  * If conversion is done to charset different that utf-8, unsupported symbols
 186  * will be replaced with question marks.
 187  * @since 1.5.1
 188  * @param string $in_charset initial charset
 189  * @param string $string string that has to be converted
 190  * @param string $out_charset final charset
 191  * @param boolean $htmlencode keep htmlspecialchars encoding
 192  * @return string converted string
 193  */
 194 function charset_convert($in_charset,$string,$out_charset,$htmlencode=true) {
 195     $string=charset_decode($in_charset,$string);
 196     $string=charset_encode($string,$out_charset,$htmlencode);
 197     return $string;
 198 }
 199
 200 /**
 201  * Makes charset name suitable for decoding cycles
 202  *
 203  * @since 1.5.0
 204  * @param string $charset Name of charset
 205  * @return string $charset Adjusted name of charset
 206  */
 207 function fixcharset($charset) {
 208     /* remove minus and characters that might be used in paths from charset
 209      * name in order to be able to use it in function names and include calls.
 210      */
 211     $charset=preg_replace("/[-:.\/\\\]/",'_',$charset);
 212
 213     // windows-125x and cp125x charsets
 214     $charset=str_replace('windows_','cp',$charset);
 215
 216     // ibm > cp
 217     $charset=str_replace('ibm','cp',$charset);
 218
 219     // iso-8859-8-i -> iso-8859-8
 220     // use same cycle until I'll find differences
 221     $charset=str_replace('iso_8859_8_i','iso_8859_8',$charset);
 222
 223     return $charset;
 224 }
 225
 226 /**
 227  * Set up the language to be output
 228  * if $do_search is true, then scan the browser information
 229  * for a possible language that we know
 230  *
 231  * Function sets system locale environment (LC_ALL, LANG, LANGUAGE),
 232  * gettext translation bindings and html header information.
 233  *
 234  * Function returns error codes, if there is some fatal error.
 235  *  0 = no error,
 236  *  1 = mbstring support is not present,
 237  *  2 = mbstring support is not present, user's translation reverted to en_US.
 238  *
 239  * @param string $sm_language translation used by user's interface
 240  * @param bool $do_search use browser's preferred language detection functions. Defaults to false.
 241  * @param bool $default set $sm_language to $squirrelmail_default_language if language detection fails or language is not set. Defaults to false.
 242  * @return int function execution error codes.
 243  */
 244 function set_up_language($sm_language, $do_search = false, $default = false) {
 245
 246     static $SetupAlready = 0;
 247     global $use_gettext, $languages,
 248            $squirrelmail_language, $squirrelmail_default_language, $default_charset,
 249            $sm_notAlias, $username, $data_dir;
 250
 251     if ($SetupAlready) {
 252         return;
 253     }
 254
 255     $SetupAlready = TRUE;
 256     sqgetGlobalVar('HTTP_ACCEPT_LANGUAGE',  $accept_lang, SQ_SERVER);
 257
 258     if ($do_search && ! $sm_language && isset($accept_lang)) {
 259         $sm_language = substr($accept_lang, 0, 2);
 260     }
 261
 262     if ((!$sm_language||$default) && isset($squirrelmail_default_language)) {
 263         $squirrelmail_language = $squirrelmail_default_language;
 264         $sm_language = $squirrelmail_default_language;
 265     }
 266     $sm_notAlias = $sm_language;
 267
 268     // Catching removed translation
 269     // System reverts to English translation if user prefs contain translation
 270     // that is not available in $languages array
 271     if (!isset($languages[$sm_notAlias])) {
 272         $sm_notAlias="en_US";
 273     }
 274
 275     while (isset($languages[$sm_notAlias]['ALIAS'])) {
 276         $sm_notAlias = $languages[$sm_notAlias]['ALIAS'];
 277     }
 278
 279     if ( isset($sm_language) &&
 280          $use_gettext &&
 281          $sm_language != '' &&
 282          isset($languages[$sm_notAlias]['CHARSET']) ) {
 283         sq_bindtextdomain( 'squirrelmail', SM_PATH . 'locale/' );
 284         sq_textdomain( 'squirrelmail' );
 285         if (function_exists('bind_textdomain_codeset')) {
 286             if ($sm_notAlias == 'ja_JP') {
 287                 bind_textdomain_codeset ("squirrelmail", 'EUC-JP');
 288             } else {
 289                 bind_textdomain_codeset ("squirrelmail", $languages[$sm_notAlias]['CHARSET'] );
 290             }
 291         }
 292         if (isset($languages[$sm_notAlias]['LOCALE'])){
 293             $longlocale=$languages[$sm_notAlias]['LOCALE'];
 294         } else {
 295             $longlocale=$sm_notAlias;
 296         }
 297         if ( !ini_get('safe_mode') &&
 298              getenv( 'LC_ALL' ) != $longlocale ) {
 299             putenv( "LC_ALL=$longlocale" );
 300             putenv( "LANG=$longlocale" );
 301             putenv( "LANGUAGE=$longlocale" );
 302             putenv( "LC_NUMERIC=C" );
 303             if ($sm_notAlias=='tr_TR') putenv( "LC_CTYPE=C" );
 304         }
 305         setlocale(LC_ALL, $longlocale);
 306         // Workaround for plugins that use numbers with floating point
 307         // It might be removed if plugins use correct decimal delimiters
 308         // according to locale settings.
 309         setlocale(LC_NUMERIC, 'C');
 310         // Workaround for specific Turkish strtolower/strtoupper rules.
 311         // Many functions expect English conversion rules.
 312         if ($sm_notAlias=='tr_TR') setlocale(LC_CTYPE,'C');
 313
 314         // Set text direction/alignment variables
 315         // These don't appear to be used... are they safe to remove?
 316         if (isset($languages[$sm_notAlias]['DIR']) &&
 317             $languages[$sm_notAlias]['DIR'] == 'rtl') {
 318             /**
 319              * Text direction
 320              * @global string $text_direction
 321              */
 322             $text_direction='rtl';
 323             /**
 324              * Left alignment
 325              * @global string $left_align
 326              */
 327             $left_align='right';
 328             /**
 329              * Right alignment
 330              * @global string $right_align
 331              */
 332             $right_align='left';
 333         } else {
 334             $text_direction='ltr';
 335             $left_align='left';
 336             $right_align='right';
 337         }
 338
 339         $squirrelmail_language = $sm_notAlias;
 340         if ($squirrelmail_language == 'ja_JP') {
 341             header ('Content-Type: text/html; charset=EUC-JP');
 342             if (!function_exists('mb_internal_encoding')) {
 343                 // Error messages can't be displayed here
 344                 $error = 1;
 345                 // Revert to English if possible.
 346                 if (function_exists('setPref')  && $username!='' && $data_dir!="") {
 347                     setPref($data_dir, $username, 'language', "en_US");
 348                     $error = 2;
 349                 }
 350                 // stop further execution in order not to get php errors on mb_internal_encoding().
 351                 return $error;
 352             }
 353             if (function_exists('mb_language')) {
 354                 mb_language('Japanese');
 355             }
 356             mb_internal_encoding('EUC-JP');
 357             mb_http_output('pass');
 358         } elseif ($squirrelmail_language == 'en_US') {
 359             header( 'Content-Type: text/html; charset=' . $default_charset );
 360         } else {
 361             header( 'Content-Type: text/html; charset=' . $languages[$sm_notAlias]['CHARSET'] );
 362         }
 363     }
 364     return 0;
 365 }
 366
 367 /**
 368  * Sets default_charset variable according to the one that is used by user's translations.
 369  *
 370  * Function changes global $default_charset variable in order to be sure, that it
 371  * contains charset used by user's translation. Sanity of $squirrelmail_default_language
 372  * and $default_charset combination provided in SquirrelMail config is also tested.
 373  *
 374  * There can be a $default_charset setting in the
 375  * config.php file, but the user may have a different language
 376  * selected for a user interface. This function checks the
 377  * language selected by the user and tags the outgoing messages
 378  * with the appropriate charset corresponding to the language
 379  * selection. This is "more right" (tm), than just stamping the
 380  * message blindly with the system-wide $default_charset.
 381  */
 382 function set_my_charset(){
 383     global $data_dir, $username, $default_charset, $languages, $squirrelmail_default_language;
 384
 385     $my_language = getPref($data_dir, $username, 'language');
 386     if (!$my_language) {
 387         $my_language = $squirrelmail_default_language ;
 388     }
 389     // Catch removed translation
 390     if (!isset($languages[$my_language])) {
 391         $my_language="en_US";
 392     }
 393     while (isset($languages[$my_language]['ALIAS'])) {
 394         $my_language = $languages[$my_language]['ALIAS'];
 395     }
 396     $my_charset = $languages[$my_language]['CHARSET'];
 397     if ($my_language!='en_US') {
 398         $default_charset = $my_charset;
 399     }
 400 }
 401
 402 /**************************
 403  * Japanese extra functions
 404  **************************/
 405
 406 /**
 407  * Japanese decoding function
 408  *
 409  * converts string to euc-jp, if string uses JIS, EUC-JP, ShiftJIS or UTF-8
 410  * charset. Needs mbstring support in php.
 411  * @param string $ret text, that has to be converted
 412  * @return string converted string
 413  * @since 1.5.1
 414  */
 415 function japanese_xtra_decode($ret) {
 416     if (function_exists('mb_detect_encoding')) {
 417         $detect_encoding = @mb_detect_encoding($ret);
 418         if ($detect_encoding == 'JIS' ||
 419             $detect_encoding == 'EUC-JP' ||
 420             $detect_encoding == 'SJIS' ||
 421             $detect_encoding == 'UTF-8') {
 422
 423             $ret = mb_convert_kana(mb_convert_encoding($ret, 'EUC-JP', 'AUTO'), "KV");
 424         }
 425     }
 426     return $ret;
 427 }
 428
 429 /**
 430  * Japanese encoding function
 431  *
 432  * converts string to jis, if string uses JIS, EUC-JP, ShiftJIS or UTF-8
 433  * charset. Needs mbstring support in php.
 434  * @param string $ret text, that has to be converted
 435  * @return string converted text
 436  * @since 1.5.1
 437  */
 438 function japanese_xtra_encode($ret) {
 439     if (function_exists('mb_detect_encoding')) {
 440         $detect_encoding = @mb_detect_encoding($ret);
 441         if ($detect_encoding == 'JIS' ||
 442             $detect_encoding == 'EUC-JP' ||
 443             $detect_encoding == 'SJIS' ||
 444             $detect_encoding == 'UTF-8') {
 445
 446             $ret = mb_convert_encoding(mb_convert_kana($ret, "KV"), 'JIS', 'AUTO');
 447         }
 448     }
 449     return $ret;
 450 }
 451
 452 /**
 453  * Japanese header encoding function
 454  *
 455  * creates base64 encoded header in iso-2022-jp charset
 456  * @param string $ret text, that has to be converted
 457  * @return string mime base64 encoded string
 458  * @since 1.5.1
 459  */
 460 function japanese_xtra_encodeheader($ret) {
 461     if (function_exists('mb_detect_encoding')) {
 462         $result = '';
 463         if (strlen($ret) > 0) {
 464             $tmpstr = mb_substr($ret, 0, 1);
 465             $prevcsize = strlen($tmpstr);
 466             for ($i = 1; $i < mb_strlen($ret); $i++) {
 467                 $tmp = mb_substr($ret, $i, 1);
 468                 if (strlen($tmp) == $prevcsize) {
 469                     $tmpstr .= $tmp;
 470                 } else {
 471                     if ($prevcsize == 1) {
 472                         $result .= $tmpstr;
 473                     } else {
 474                         $result .= str_replace(' ', '',
 475                                                mb_encode_mimeheader($tmpstr,'iso-2022-jp','B',''));
 476                     }
 477                     $tmpstr = $tmp;
 478                     $prevcsize = strlen($tmp);
 479                 }
 480             }
 481             if (strlen($tmpstr)) {
 482                 if (strlen(mb_substr($tmpstr, 0, 1)) == 1)
 483                     $result .= $tmpstr;
 484                 else
 485                     $result .= str_replace(' ', '',
 486                                            mb_encode_mimeheader($tmpstr,'iso-2022-jp','B',''));
 487             }
 488         }
 489         $ret = $result;
 490     }
 491     return $ret;
 492 }
 493
 494 /**
 495  * Japanese header decoding function
 496  *
 497  * return human readable string from mime header. string is returned in euc-jp
 498  * charset.
 499  * @param string $ret header string
 500  * @return string decoded header string
 501  * @since 1.5.1
 502  */
 503 function japanese_xtra_decodeheader($ret) {
 504     if (function_exists('mb_detect_encoding')) {
 505         $ret = str_replace("\t", "", $ret);
 506         if (eregi('=\\?([^?]+)\\?(q|b)\\?([^?]+)\\?=', $ret))
 507             $ret = @mb_decode_mimeheader($ret);
 508         $ret = @mb_convert_encoding($ret, 'EUC-JP', 'AUTO');
 509     }
 510     return $ret;
 511 }
 512
 513 /**
 514  * Japanese downloaded filename processing function
 515  *
 516  * Returns shift-jis or euc-jp encoded file name
 517  * @param string $ret string
 518  * @param string $useragent browser
 519  * @return string converted string
 520  * @since 1.5.1
 521  */
 522 function japanese_xtra_downloadfilename($ret,$useragent) {
 523     if (function_exists('mb_detect_encoding')) {
 524         if (strstr($useragent, 'Windows') !== false ||
 525             strstr($useragent, 'Mac_') !== false) {
 526             $ret = mb_convert_encoding($ret, 'SJIS', 'AUTO');
 527         } else {
 528             $ret = mb_convert_encoding($ret, 'EUC-JP', 'AUTO');
 529         }
 530     }
 531     return $ret;
 532 }
 533
 534 /**
 535  * Japanese wordwrap function
 536  *
 537  * wraps text at set number of symbols
 538  * @param string $ret text
 539  * @param integer $wrap number of symbols per line
 540  * @return string wrapped text
 541  * @since 1.5.1
 542  */
 543 function japanese_xtra_wordwrap($ret,$wrap) {
 544     if (function_exists('mb_detect_encoding')) {
 545         $no_begin = "\x21\x25\x29\x2c\x2e\x3a\x3b\x3f\x5d\x7d\xa1\xf1\xa1\xeb\xa1" .
 546             "\xc7\xa1\xc9\xa2\xf3\xa1\xec\xa1\xed\xa1\xee\xa1\xa2\xa1\xa3\xa1\xb9" .
 547             "\xa1\xd3\xa1\xd5\xa1\xd7\xa1\xd9\xa1\xdb\xa1\xcd\xa4\xa1\xa4\xa3\xa4" .
 548             "\xa5\xa4\xa7\xa4\xa9\xa4\xc3\xa4\xe3\xa4\xe5\xa4\xe7\xa4\xee\xa1\xab" .
 549             "\xa1\xac\xa1\xb5\xa1\xb6\xa5\xa1\xa5\xa3\xa5\xa5\xa5\xa7\xa5\xa9\xa5" .
 550             "\xc3\xa5\xe3\xa5\xe5\xa5\xe7\xa5\xee\xa5\xf5\xa5\xf6\xa1\xa6\xa1\xbc" .
 551             "\xa1\xb3\xa1\xb4\xa1\xaa\xa1\xf3\xa1\xcb\xa1\xa4\xa1\xa5\xa1\xa7\xa1" .
 552             "\xa8\xa1\xa9\xa1\xcf\xa1\xd1";
 553         // This don't appear to be used... is it safe to remove?
 554         $no_end = "\x5c\x24\x28\x5b\x7b\xa1\xf2\x5c\xa1\xc6\xa1\xc8\xa1\xd2\xa1" .
 555             "\xd4\xa1\xd6\xa1\xd8\xa1\xda\xa1\xcc\xa1\xf0\xa1\xca\xa1\xce\xa1\xd0\xa1\xef";
 556
 557         if (strlen($ret) >= $wrap &&
 558             substr($ret, 0, 1) != '>' &&
 559             strpos($ret, 'http://') === FALSE &&
 560             strpos($ret, 'https://') === FALSE &&
 561             strpos($ret, 'ftp://') === FALSE) {
 562
 563             $ret = mb_convert_kana($ret, "KV");
 564
 565             $line_new = '';
 566             $ptr = 0;
 567
 568             while ($ptr < strlen($ret) - 1) {
 569                 $l = mb_strcut($ret, $ptr, $wrap);
 570                 $ptr += strlen($l);
 571                 $tmp = $l;
 572
 573                 $l = mb_strcut($ret, $ptr, 2);
 574                 while (strlen($l) != 0 && mb_strpos($no_begin, $l) !== FALSE ) {
 575                     $tmp .= $l;
 576                     $ptr += strlen($l);
 577                     $l = mb_strcut($ret, $ptr, 1);
 578                 }
 579                 $line_new .= $tmp;
 580                 if ($ptr < strlen($ret) - 1)
 581                     $line_new .= "\n";
 582             }
 583             $ret = $line_new;
 584         }
 585     }
 586     return $ret;
 587 }
 588
 589 /**
 590  * Japanese imap folder name encoding function
 591  *
 592  * converts folder name from euc-jp to utf7-imap
 593  * @param string $ret folder name
 594  * @return string converted folder name
 595  * @since 1.5.1
 596  */
 597 function japanese_xtra_utf7_imap_encode($ret){
 598     if (function_exists('mb_detect_encoding')) {
 599         $ret = mb_convert_encoding($ret, 'UTF7-IMAP', 'EUC-JP');
 600     }
 601     return $ret;
 602 }
 603
 604 /**
 605  * Japanese imap folder name decoding function
 606  *
 607  * converts folder name from utf7-imap to euc-jp.
 608  * @param string $ret folder name in utf7-imap
 609  * @return string converted folder name
 610  * @since 1.5.1
 611  */
 612 function japanese_xtra_utf7_imap_decode($ret) {
 613     if (function_exists('mb_detect_encoding')) {
 614         $ret = mb_convert_encoding($ret, 'EUC-JP', 'UTF7-IMAP');
 615     }
 616     return $ret;
 617 }
 618
 619 /**
 620  * Japanese string trimming function
 621  *
 622  * trims string to defined number of symbols
 623  * @param string $ret string
 624  * @param integer $width number of symbols
 625  * @return string trimmed string
 626  * @since 1.5.1
 627  */
 628 function japanese_xtra_strimwidth($ret,$width) {
 629     if (function_exists('mb_detect_encoding')) {
 630         $ret = mb_strimwidth($ret, 0, $width, '...');
 631     }
 632     return $ret;
 633 }
 634
 635 /********************************
 636  * Korean charset extra functions
 637  ********************************/
 638
 639 /**
 640  * Korean downloaded filename processing functions
 641  *
 642  * @param string default return value
 643  * @return string
 644  * @since 1.5.1
 645  */
 646 function korean_xtra_downloadfilename($ret) {
 647     $ret = str_replace("\x0D\x0A", '', $ret);  /* Hanmail's CR/LF Clear */
 648     for ($i=0;$i<strlen($ret);$i++) {
 649         if ($ret[$i] >= "\xA1" && $ret[$i] <= "\xFE") {   /* 0xA1 - 0XFE are Valid */
 650             $i++;
 651             continue;
 652         } else if (($ret[$i] >= 'a' && $ret[$i] <= 'z') || /* From Original ereg_replace in download.php */
 653                    ($ret[$i] >= 'A' && $ret[$i] <= 'Z') ||
 654                    ($ret[$i] == '.') || ($ret[$i] == '-')) {
 655             continue;
 656         } else {
 657             $ret[$i] = '_';
 658         }
 659     }
 660     return $ret;
 661 }
 662
 663 /**
 664  * Replaces non-braking spaces inserted by some browsers with regular space
 665  *
 666  * This function can be used to replace non-braking space symbols
 667  * that are inserted in forms by some browsers instead of normal
 668  * space symbol.
 669  *
 670  * @param string $string Text that needs to be cleaned
 671  * @param string $charset Charset used in text
 672  * @return string Cleaned text
 673  */
 674 function cleanup_nbsp($string,$charset) {
 675
 676   // reduce number of case statements
 677   if (stristr('iso-8859-',substr($charset,0,9))){
 678     $output_charset="iso-8859-x";
 679   }
 680   if (stristr('windows-125',substr($charset,0,11))){
 681     $output_charset="cp125x";
 682   }
 683   if (stristr('koi8',substr($charset,0,4))){
 684     $output_charset="koi8-x";
 685   }
 686   if (! isset($output_charset)){
 687     $output_charset=strtolower($charset);
 688   }
 689
 690 // where is non-braking space symbol
 691 switch($output_charset):
 692  case "iso-8859-x":
 693  case "cp125x":
 694  case "iso-2022-jp":
 695   $nbsp="\xA0";
 696   break;
 697  case "koi8-x":
 698    $nbsp="\x9A";
 699    break;
 700  case "utf-8":
 701    $nbsp="\xC2\xA0";
 702    break;
 703  default:
 704    // don't change string if charset is unmatched
 705    return $string;
 706 endswitch;
 707
 708 // return space instead of non-braking space.
 709  return str_replace($nbsp,' ',$string);
 710 }
 711
 712 /**
 713  * Function informs if it is safe to convert given charset to the one that is used by user.
 714  *
 715  * It is safe to use conversion only if user uses utf-8 encoding and when
 716  * converted charset is similar to the one that is used by user.
 717  *
 718  * @param string $input_charset Charset of text that needs to be converted
 719  * @return bool is it possible to convert to user's charset
 720  */
 721 function is_conversion_safe($input_charset) {
 722   global $languages, $sm_notAlias, $default_charset, $lossy_encoding;
 723
 724     if (isset($lossy_encoding) && $lossy_encoding )
 725         return true;
 726
 727  // convert to lower case
 728  $input_charset = strtolower($input_charset);
 729
 730  // Is user's locale Unicode based ?
 731  if ( $default_charset == "utf-8" ) {
 732    return true;
 733  }
 734
 735  // Charsets that are similar
 736 switch ($default_charset):
 737 case "windows-1251":
 738       if ( $input_charset == "iso-8859-5" ||
 739            $input_charset == "koi8-r" ||
 740            $input_charset == "koi8-u" ) {
 741         return true;
 742      } else {
 743         return false;
 744      }
 745 case "windows-1257":
 746   if ( $input_charset == "iso-8859-13" ||
 747        $input_charset == "iso-8859-4" ) {
 748     return true;
 749   } else {
 750     return false;
 751   }
 752 case "iso-8859-4":
 753   if ( $input_charset == "iso-8859-13" ||
 754        $input_charset == "windows-1257" ) {
 755      return true;
 756   } else {
 757      return false;
 758   }
 759 case "iso-8859-5":
 760   if ( $input_charset == "windows-1251" ||
 761        $input_charset == "koi8-r" ||
 762        $input_charset == "koi8-u" ) {
 763      return true;
 764   } else {
 765      return false;
 766   }
 767 case "iso-8859-13":
 768   if ( $input_charset == "iso-8859-4" ||
 769        $input_charset == "windows-1257" ) {
 770      return true;
 771   } else {
 772      return false;
 773   }
 774 case "koi8-r":
 775   if ( $input_charset == "windows-1251" ||
 776        $input_charset == "iso-8859-5" ||
 777        $input_charset == "koi8-u" ) {
 778      return true;
 779   } else {
 780      return false;
 781   }
 782 case "koi8-u":
 783   if ( $input_charset == "windows-1251" ||
 784        $input_charset == "iso-8859-5" ||
 785        $input_charset == "koi8-r" ) {
 786      return true;
 787   } else {
 788      return false;
 789   }
 790 default:
 791    return false;
 792 endswitch;
 793 }
 794
 795
 796 /* ------------------------------ main --------------------------- */
 797
 798 global $squirrelmail_language, $languages, $use_gettext;
 799
 800 if (! isset($squirrelmail_language)) {
 801     $squirrelmail_language = '';
 802 }
 803
 804 /**
 805  * Array specifies the available translations.
 806  *
 807  * Structure of array:
 808  * $languages['language']['variable'] = 'value'
 809  *
 810  * Possible 'variable' names:
 811  *  NAME      - Translation name in English
 812  *  CHARSET   - Encoding used by translation
 813  *  ALIAS     - used when 'language' is only short name and 'value' should provide long language name
 814  *  ALTNAME   - Native translation name. Any 8bit symbols must be html encoded.
 815  *  LOCALE    - Full locale name (in xx_XX.charset format)
 816  *  DIR       - Text direction. Used to define Right-to-Left languages. Possible values 'rtl' or 'ltr'. If undefined - defaults to 'ltr'
 817  *  XTRA_CODE - translation uses special functions. See doc/i18n.txt
 818  *
 819  * Each 'language' definition requires NAME+CHARSET or ALIAS variables.
 820  *
 821  * @name $languages
 822  * @global array $languages
 823  */
 824 $languages['bg_BG']['NAME']    = 'Bulgarian';
 825 $languages['bg_BG']['ALTNAME'] = '&#1041;&#1098;&#1083;&#1075;&#1072;&#1088;&#1089;&#1082;&#1080;';
 826 $languages['bg_BG']['CHARSET'] = 'windows-1251';
 827 $languages['bg_BG']['LOCALE']  = 'bg_BG.CP1251';
 828 $languages['bg']['ALIAS'] = 'bg_BG';
 829
 830 $languages['bn_IN']['NAME']    = 'Bengali';
 831 $languages['bn_IN']['CHARSET'] = 'utf-8';
 832 $languages['bn_IN']['LOCALE']  = 'bn_IN.UTF-8';
 833 $languages['bn_BD']['ALIAS'] = 'bn_IN';
 834 $languages['bn']['ALIAS'] = 'bn_IN';
 835
 836 $languages['ca_ES']['NAME']    = 'Catalan';
 837 $languages['ca_ES']['CHARSET'] = 'iso-8859-1';
 838 $languages['ca_ES']['LOCALE']  = 'ca_ES.ISO8859-1';
 839 $languages['ca']['ALIAS'] = 'ca_ES';
 840
 841 $languages['cs_CZ']['NAME']    = 'Czech';
 842 $languages['cs_CZ']['ALTNAME'] = '&#268;e&scaron;tina';
 843 $languages['cs_CZ']['CHARSET'] = 'iso-8859-2';
 844 $languages['cs_CZ']['LOCALE']  = 'cs_CZ.ISO8859-2';
 845 $languages['cs']['ALIAS']      = 'cs_CZ';
 846
 847 $languages['cy_GB']['NAME']    = 'Welsh';
 848 $languages['cy_GB']['ALTNAME'] = 'Cymraeg';
 849 $languages['cy_GB']['CHARSET'] = 'iso-8859-1';
 850 $languages['cy_GB']['LOCALE']  = 'cy_GB.ISO8859-1';
 851 $languages['cy']['ALIAS'] = 'cy_GB';
 852
 853 // Danish locale is da_DK.
 854 $languages['da_DK']['NAME']    = 'Danish';
 855 $languages['da_DK']['ALTNAME'] = 'Dansk';
 856 $languages['da_DK']['CHARSET'] = 'iso-8859-1';
 857 $languages['da_DK']['LOCALE']  = 'da_DK.ISO8859-1';
 858 $languages['da']['ALIAS'] = 'da_DK';
 859
 860 $languages['de_DE']['NAME']    = 'German';
 861 $languages['de_DE']['ALTNAME']    = 'Deutsch';
 862 $languages['de_DE']['CHARSET'] = 'iso-8859-1';
 863 $languages['de_DE']['LOCALE']  = 'de_DE.ISO8859-1';
 864 $languages['de']['ALIAS'] = 'de_DE';
 865
 866 $languages['el_GR']['NAME']    = 'Greek';
 867 $languages['el_GR']['ALTNAME'] = '&Epsilon;&lambda;&lambda;&eta;&nu;&iota;&kappa;&#940;';
 868 $languages['el_GR']['CHARSET'] = 'iso-8859-7';
 869 $languages['el_GR']['LOCALE']  = 'el_GR.ISO8859-7';
 870 $languages['el']['ALIAS'] = 'el_GR';
 871
 872 $languages['en_GB']['NAME']    = 'British';
 873 $languages['en_GB']['CHARSET'] = 'iso-8859-15';
 874 $languages['en_GB']['LOCALE']  = 'en_GB.ISO8859-15';
 875
 876 $languages['en_US']['NAME']    = 'English';
 877 $languages['en_US']['CHARSET'] = 'iso-8859-1';
 878 $languages['en_US']['LOCALE']  = 'en_US.ISO8859-1';
 879 $languages['en']['ALIAS'] = 'en_US';
 880
 881 $languages['es_ES']['NAME']    = 'Spanish';
 882 $languages['es_ES']['ALTNAME'] = 'Espa&ntilde;ol';
 883 $languages['es_ES']['CHARSET'] = 'iso-8859-1';
 884 $languages['es_ES']['LOCALE']  = 'es_ES.ISO8859-1';
 885 $languages['es']['ALIAS'] = 'es_ES';
 886
 887 $languages['et_EE']['NAME']    = 'Estonian';
 888 $languages['et_EE']['CHARSET'] = 'iso-8859-15';
 889 $languages['et_EE']['LOCALE']  = 'et_EE.ISO8859-15';
 890 $languages['et']['ALIAS'] = 'et_EE';
 891
 892 $languages['eu_ES']['NAME']    = 'Basque';
 893 $languages['eu_ES']['CHARSET'] = 'iso-8859-1';
 894 $languages['eu_ES']['LOCALE']  = 'eu_ES.ISO8859-1';
 895 $languages['eu']['ALIAS'] = 'eu_ES';
 896
 897 $languages['fo_FO']['NAME']    = 'Faroese';
 898 $languages['fo_FO']['CHARSET'] = 'iso-8859-1';
 899 $languages['fo_FO']['LOCALE']  = 'fo_FO.ISO8859-1';
 900 $languages['fo']['ALIAS'] = 'fo_FO';
 901
 902 $languages['fi_FI']['NAME']    = 'Finnish';
 903 $languages['fi_FI']['ALTNAME'] = 'Suomi';
 904 $languages['fi_FI']['CHARSET'] = 'iso-8859-1';
 905 $languages['fi_FI']['LOCALE']  = 'fi_FI.ISO8859-1';
 906 $languages['fi']['ALIAS'] = 'fi_FI';
 907
 908 $languages['fr_FR']['NAME']    = 'French';
 909 $languages['fr_FR']['ALTNAME'] = 'Fran&#231;ais';
 910 $languages['fr_FR']['CHARSET'] = 'iso-8859-1';
 911 $languages['fr_FR']['LOCALE']  = 'fr_FR.ISO8859-1';
 912 $languages['fr']['ALIAS'] = 'fr_FR';
 913
 914 $languages['hr_HR']['NAME']    = 'Croatian';
 915 $languages['hr_HR']['CHARSET'] = 'iso-8859-2';
 916 $languages['hr_HR']['LOCALE']  = 'hr_HR.ISO8859-2';
 917 $languages['hr']['ALIAS'] = 'hr_HR';
 918
 919 $languages['hu_HU']['NAME']    = 'Hungarian';
 920 $languages['hu_HU']['ALTNAME'] = 'Magyar';
 921 $languages['hu_HU']['CHARSET'] = 'iso-8859-2';
 922 $languages['hu_HU']['LOCALE']  = 'hu_HU.ISO8859-2';
 923 $languages['hu']['ALIAS'] = 'hu_HU';
 924
 925 $languages['id_ID']['NAME']    = 'Indonesian';
 926 $languages['id_ID']['ALTNAME'] = 'Bahasa Indonesia';
 927 $languages['id_ID']['CHARSET'] = 'iso-8859-1';
 928 $languages['id_ID']['LOCALE']  = 'id_ID.ISO8859-1';
 929 $languages['id']['ALIAS'] = 'id_ID';
 930
 931 $languages['is_IS']['NAME']    = 'Icelandic';
 932 $languages['is_IS']['ALTNAME'] = '&Iacute;slenska';
 933 $languages['is_IS']['CHARSET'] = 'iso-8859-1';
 934 $languages['is_IS']['LOCALE']  = 'is_IS.ISO8859-1';
 935 $languages['is']['ALIAS'] = 'is_IS';
 936
 937 $languages['it_IT']['NAME']    = 'Italian';
 938 $languages['it_IT']['CHARSET'] = 'iso-8859-1';
 939 $languages['it_IT']['LOCALE']  = 'it_IT.ISO8859-1';
 940 $languages['it']['ALIAS'] = 'it_IT';
 941
 942 $languages['ja_JP']['NAME']    = 'Japanese';
 943 $languages['ja_JP']['ALTNAME'] = '&#26085;&#26412;&#35486;';
 944 $languages['ja_JP']['CHARSET'] = 'iso-2022-jp';
 945 $languages['ja_JP']['LOCALE'] = 'ja_JP.EUC-JP';
 946 $languages['ja_JP']['XTRA_CODE'] = 'japanese_xtra';
 947 $languages['ja']['ALIAS'] = 'ja_JP';
 948
 949 $languages['ko_KR']['NAME']    = 'Korean';
 950 $languages['ko_KR']['CHARSET'] = 'euc-KR';
 951 $languages['ko_KR']['LOCALE']  = 'ko_KR.EUC-KR';
 952 $languages['ko_KR']['XTRA_CODE'] = 'korean_xtra';
 953 $languages['ko']['ALIAS'] = 'ko_KR';
 954
 955 $languages['lt_LT']['NAME']    = 'Lithuanian';
 956 $languages['lt_LT']['ALTNAME'] = 'Lietuvi&#371;';
 957 $languages['lt_LT']['CHARSET'] = 'utf-8';
 958 $languages['lt_LT']['LOCALE'] = 'lt_LT.UTF-8';
 959 $languages['lt']['ALIAS'] = 'lt_LT';
 960
 961 $languages['nl_NL']['NAME']    = 'Dutch';
 962 $languages['nl_NL']['ALTNAME'] = 'Nederlands';
 963 $languages['nl_NL']['CHARSET'] = 'iso-8859-1';
 964 $languages['nl_NL']['LOCALE']  = 'nl_NL.ISO8859-1';
 965 $languages['nl']['ALIAS'] = 'nl_NL';
 966
 967 $languages['ms_MY']['NAME']    = 'Malay';
 968 $languages['ms_MY']['ALTNAME'] = 'Bahasa Melayu';
 969 $languages['ms_MY']['CHARSET'] = 'iso-8859-1';
 970 $languages['ms_MY']['LOCALE']  = 'ms_MY.ISO8859-1';
 971 $languages['my']['ALIAS'] = 'ms_MY';
 972
 973 $languages['nb_NO']['NAME']    = 'Norwegian (Bokm&aring;l)';
 974 $languages['nb_NO']['ALTNAME'] = 'Norsk (Bokm&aring;l)';
 975 $languages['nb_NO']['CHARSET'] = 'iso-8859-1';
 976 $languages['nb_NO']['LOCALE']  = 'nb_NO.ISO8859-1';
 977 $languages['nb']['ALIAS'] = 'nb_NO';
 978
 979 $languages['nn_NO']['NAME']    = 'Norwegian (Nynorsk)';
 980 $languages['nn_NO']['ALTNAME'] = 'Norsk (Nynorsk)';
 981 $languages['nn_NO']['CHARSET'] = 'iso-8859-1';
 982 $languages['nn_NO']['LOCALE']  = 'nn_NO.ISO8859-1';
 983
 984 $languages['pl_PL']['NAME']    = 'Polish';
 985 $languages['pl_PL']['ALTNAME'] = 'Polski';
 986 $languages['pl_PL']['CHARSET'] = 'iso-8859-2';
 987 $languages['pl_PL']['LOCALE']  = 'pl_PL.ISO8859-2';
 988 $languages['pl']['ALIAS'] = 'pl_PL';
 989
 990 $languages['pt_PT']['NAME'] = 'Portuguese (Portugal)';
 991 $languages['pt_PT']['CHARSET'] = 'iso-8859-1';
 992 $languages['pt_PT']['LOCALE']  = 'pt_PT.ISO8859-1';
 993 $languages['pt']['ALIAS'] = 'pt_PT';
 994
 995 $languages['pt_BR']['NAME']    = 'Portuguese (Brazil)';
 996 $languages['pt_BR']['ALTNAME'] = 'Portugu&ecirc;s do Brasil';
 997 $languages['pt_BR']['CHARSET'] = 'iso-8859-1';
 998 $languages['pt_BR']['LOCALE']  = 'pt_BR.ISO8859-1';
 999
1000 $languages['ro_RO']['NAME']    = 'Romanian';
1001 $languages['ro_RO']['ALTNAME'] = 'Rom&acirc;n&#259;';
1002 $languages['ro_RO']['CHARSET'] = 'iso-8859-2';
1003 $languages['ro_RO']['LOCALE']  = 'ro_RO.ISO8859-2';
1004 $languages['ro']['ALIAS'] = 'ro_RO';
1005
1006 $languages['ru_RU']['NAME']    = 'Russian';
1007 $languages['ru_RU']['ALTNAME'] = '&#1056;&#1091;&#1089;&#1089;&#1082;&#1080;&#1081;';
1008 $languages['ru_RU']['CHARSET'] = 'utf-8';
1009 $languages['ru_RU']['LOCALE']  = 'ru_RU.UTF-8';
1010 $languages['ru']['ALIAS'] = 'ru_RU';
1011
1012 $languages['sk_SK']['NAME']    = 'Slovak';
1013 $languages['sk_SK']['CHARSET'] = 'iso-8859-2';
1014 $languages['sk_SK']['LOCALE']  = 'sk_SK.ISO8859-2';
1015 $languages['sk']['ALIAS'] = 'sk_SK';
1016
1017 $languages['sl_SI']['NAME']    = 'Slovenian';
1018 $languages['sl_SI']['ALTNAME'] = 'Sloven&scaron;&#269;ina';
1019 $languages['sl_SI']['CHARSET'] = 'iso-8859-2';
1020 $languages['sl_SI']['LOCALE']  = 'sl_SI.ISO8859-2';
1021 $languages['sl']['ALIAS'] = 'sl_SI';
1022
1023 $languages['sr_YU']['NAME']    = 'Serbian';
1024 $languages['sr_YU']['ALTNAME'] = 'Srpski';
1025 $languages['sr_YU']['CHARSET'] = 'iso-8859-2';
1026 $languages['sr_YU']['LOCALE']  = 'sr_YU.ISO8859-2';
1027 $languages['sr']['ALIAS'] = 'sr_YU';
1028
1029 $languages['sv_SE']['NAME']    = 'Swedish';
1030 $languages['sv_SE']['ALTNAME'] = 'Svenska';
1031 $languages['sv_SE']['CHARSET'] = 'iso-8859-1';
1032 $languages['sv_SE']['LOCALE']  = 'sv_SE.ISO8859-1';
1033 $languages['sv']['ALIAS'] = 'sv_SE';
1034
1035 $languages['th_TH']['NAME']    = 'Thai';
1036 $languages['th_TH']['CHARSET'] = 'tis-620';
1037 $languages['th_TH']['LOCALE']  = 'th_TH.TIS-620';
1038 $languages['th']['ALIAS'] = 'th_TH';
1039
1040 $languages['tl_PH']['NAME']    = 'Tagalog';
1041 $languages['tl_PH']['CHARSET'] = 'iso-8859-1';
1042 $languages['tl_PH']['LOCALE']  = 'tl_PH.ISO8859-1';
1043 $languages['tl']['ALIAS'] = 'tl_PH';
1044
1045 $languages['tr_TR']['NAME']    = 'Turkish';
1046 $languages['tr_TR']['CHARSET'] = 'iso-8859-9';
1047 $languages['tr_TR']['LOCALE']  = 'tr_TR.ISO8859-9';
1048 $languages['tr']['ALIAS'] = 'tr_TR';
1049
1050 $languages['zh_TW']['NAME']    = 'Chinese Trad';
1051 $languages['zh_TW']['CHARSET'] = 'big5';
1052 $languages['zh_TW']['LOCALE']  = 'zh_TW.BIG5';
1053 $languages['tw']['ALIAS'] = 'zh_TW';
1054
1055 $languages['zh_CN']['NAME']    = 'Chinese Simp';
1056 $languages['zh_CN']['CHARSET'] = 'gb2312';
1057 $languages['zh_CN']['LOCALE']  = 'zh_CN.GB2312';
1058 $languages['cn']['ALIAS'] = 'zh_CN';
1059
1060 $languages['uk_UA']['NAME']    = 'Ukrainian';
1061 $languages['uk_UA']['CHARSET'] = 'koi8-u';
1062 $languages['uk_UA']['LOCALE']  = 'uk_UA.KOI8-U';
1063 $languages['uk']['ALIAS'] = 'uk_UA';
1064
1065 $languages['ru_UA']['NAME']    = 'Russian (Ukrainian)';
1066 $languages['ru_UA']['CHARSET'] = 'koi8-r';
1067 $languages['ru_UA']['LOCALE']  = 'ru_UA.KOI8-R';
1068
1069 /*
1070 $languages['vi_VN']['NAME']    = 'Vietnamese';
1071 $languages['vi_VN']['CHARSET'] = 'utf-8';
1072 $languages['vi']['ALIAS'] = 'vi_VN';
1073 */
1074
1075 // Right to left languages
1076 $languages['ar']['NAME']    = 'Arabic';
1077 $languages['ar']['CHARSET'] = 'windows-1256';
1078 $languages['ar']['DIR']     = 'rtl';
1079
1080 $languages['fa_IR']['NAME']    = 'Farsi';
1081 $languages['fa_IR']['CHARSET'] = 'utf-8';
1082 $languages['fa_IR']['DIR']     = 'rtl';
1083 $languages['fa_IR']['LOCALE']  = 'fa_IR.UTF-8';
1084 $languages['fa']['ALIAS']      = 'fa_IR';
1085
1086 $languages['he_IL']['NAME']    = 'Hebrew';
1087 $languages['he_IL']['CHARSET'] = 'windows-1255';
1088 $languages['he_IL']['LOCALE']  = 'he_IL.CP1255';
1089 $languages['he_IL']['DIR']     = 'rtl';
1090 $languages['he']['ALIAS']      = 'he_IL';
1091
1092 $languages['ug']['NAME']    = 'Uighur';
1093 $languages['ug']['CHARSET'] = 'utf-8';
1094 $languages['ug']['DIR']     = 'rtl';
1095
1096 /* Detect whether gettext is installed. */
1097 $gettext_flags = 0;
1098 if (function_exists('_')) {
1099     $gettext_flags += 1;
1100 }
1101 if (function_exists('bindtextdomain')) {
1102     $gettext_flags += 2;
1103 }
1104 if (function_exists('textdomain')) {
1105     $gettext_flags += 4;
1106 }
1107 if (function_exists('ngettext')) {
1108     $gettext_flags += 8;
1109 }
1110
1111 /* If gettext is fully loaded, cool */
1112 if ($gettext_flags == 15) {
1113     $use_gettext = true;
1114 }
1115
1116 /* If ngettext support is missing, load it */
1117 elseif ($gettext_flags == 7) {
1118     $use_gettext = true;
1119     // load internal ngettext functions
1120     include_once(SM_PATH . 'class/l10n.class.php');
1121     include_once(SM_PATH . 'functions/ngettext.php');
1122 }
1123
1124 /* If we can fake gettext, try that */
1125 elseif ($gettext_flags == 0) {
1126     $use_gettext = true;
1127     include_once(SM_PATH . 'functions/gettext.php');
1128 } else {
1129     /* Uh-ho.  A weird install */
1130     if (! $gettext_flags & 1) {
1131       /**
1132        * Function is used as replacement in broken installs
1133        * @ignore
1134        */
1135         function _($str) {
1136             return $str;
1137         }
1138     }
1139     if (! $gettext_flags & 2) {
1140       /**
1141        * Function is used as replacement in broken installs
1142        * @ignore
1143        */
1144         function bindtextdomain() {
1145             return;
1146         }
1147     }
1148     if (! $gettext_flags & 4) {
1149       /**
1150        * Function is used as replacemet in broken installs
1151        * @ignore
1152        */
1153         function textdomain() {
1154             return;
1155         }
1156     }
1157     if (! $gettext_flags & 8) {
1158         /**
1159          * Function is used as replacemet in broken installs
1160          * @ignore
1161          */
1162         function ngettext($str,$str2,$number) {
1163             if ($number>1) {
1164                 return $str2;
1165             } else {
1166                 return $str;
1167             }
1168         }
1169     }
1170 }
1171 ?>