squirrelmail/functions/i18n.php

<?php

/**
 ** i18n.php
 ** 
 ** This file contains variuos functions that are needed to do
 ** internationalization of SquirrelMail.
 **
 ** Internally the output character set is used. Other characters are
 ** encoded using Unicode entities according to HTML 4.0.
 **
 ** $Id$
 **/

   if (defined ('i18n_php'))
      return; 
   define ('i18n_php', true);

   global $squirrelmail_language, $languages;
   if (! isset($squirrelmail_language)) { $squirrelmail_language = ''; }

   // This array specifies the available languages.
   $languages['en']['NAME']    = 'English';
   $languages['en']['CHARSET'] = 'iso-8859-1';
   $languages['en_EN']['ALIAS'] = 'en';
   
   $languages['ca']['NAME']    = 'Catalan';
   $languages['ca']['CHARSET'] = 'iso-8859-1';
   $languages['ca_CA']['ALIAS'] = 'ca';

   $languages['hr']['NAME']    = 'Croatian';
   $languages['hr']['CHARSET'] = 'iso-8859-2';
   $languages['hr_HR']['ALIAS'] = 'hr';

   $languages['cs_CZ']['NAME']    = 'Czech';
   $languages['cs_CZ']['CHARSET'] = 'iso-8859-2';
   
   $languages['da']['NAME']    = 'Danish';
   $languages['da']['CHARSET'] = 'iso-8859-1';
   $languages['da_DA']['ALIAS'] = 'da';
   
   $languages['de']['NAME']    = 'Deutsch';
   $languages['de']['CHARSET'] = 'iso-8859-1';
   $languages['de_DE']['ALIAS'] = 'de';
   
   $languages['id']['NAME']    = 'Indonesian';
   $languages['id']['CHARSET'] = 'iso-8859-1';
   $languages['id_ID']['ALIAS'] = 'id';
   
   $languages['nl']['NAME']    = 'Dutch';
   $languages['nl']['CHARSET'] = 'iso-8859-1';
   $languages['nl_NL']['ALIAS'] = 'nl';
   
   $languages['fr']['NAME']    = 'French';
   $languages['fr']['CHARSET'] = 'iso-8859-1';
   $languages['fr_FR']['ALIAS'] = 'fr';
   
   $languages['fi']['NAME']    = 'Finnish';
   $languages['fi']['CHARSET'] = 'iso-8859-1';
   $languages['fi_FI']['ALIAS'] = 'fi';

   $languages['hu']['NAME']    = 'Hungarian';
   $languages['hu']['CHARSET'] = 'iso-8859-1';
   $languages['hu_HU']['ALIAS'] = 'hu';

   $languages['is']['NAME']    = 'Icelandic';
   $languages['is']['CHARSET'] = 'iso-8859-1';
   $languages['is_IS']['ALIAS'] = 'is';
   
   $languages['it']['NAME']    = 'Italian';
   $languages['it']['CHARSET'] = 'iso-8859-1';
   $languages['it_IT']['ALIAS'] = 'it';
  
   $languages['ko']['NAME']    = 'Korean';
   $languages['ko']['CHARSET'] = 'euc-KR';
   $languages['ko_KO']['CHARSET'] = 'ko';
   
   $languages['no']['NAME']    = 'Norwegian (Bokm&aring;l)';
   $languages['no']['CHARSET'] = 'iso-8859-1';
   $languages['no_NO']['ALIAS'] = 'no';
   
   $languages['no_NO_ny']['NAME']    = 'Norwegian (Nynorsk)';
   $languages['no_NO_ny']['CHARSET'] = 'iso-8859-1';
   
   $languages['pl']['NAME']    = 'Polish';
   $languages['pl']['CHARSET'] = 'iso-8859-2';
   $languages['pl_PL']['Alias'] = 'pl';
   
   $languages['pt']['NAME'] = 'Português (Portugal)';
   $languages['pt']['CHARSET'] = 'iso-8859-1';
   $languages['pt_PT']['CHARSET'] = 'pt';
   
   $languages['pt_BR']['NAME']    = 'Portuguese (Brazil)';
   $languages['pt_BR']['CHARSET'] = 'iso-8859-1';
   
   $languages['ru']['NAME']    = 'Russian KOI8-R';
   $languages['ru']['CHARSET'] = 'koi8-r';
   $languages['ru_RU']['ALIAS'] = 'ru';
   
   $languages['sr']['NAME']    = 'Serbian';
   $languages['sr']['CHARSET'] = 'iso-8859-2';
   $languages['sr_SR']['ALIAS'] = 'sr';
   
   $languages['es']['NAME']    = 'Spanish';
   $languages['es']['CHARSET'] = 'iso-8859-1';
   $languages['es_ES']['ALIAS'] = 'es';

   $languages['sv']['NAME']    = 'Swedish';
   $languages['sv']['CHARSET'] = 'iso-8859-1';
   $languages['sv_SV']['ALIAS'] = 'sv';
   
   $languages['tw']['NAME']    = 'Taiwan';
   $languages['tw']['CHARSET'] = 'big5';
   $languages['tw_TW']['ALIAS'] = 'tw';
   

   // Decodes a string to the internal encoding from the given charset
   function charset_decode ($charset, $string) {
      global $debug_mime;

      // All HTML special characters are 7 bit and can be replaced first
      $string = htmlspecialchars ($string);

      $charset = strtolower($charset);

      if ($debug_mime) $string = $charset . ':' . $string;

      if (ereg('iso-8859-([[:digit:]]+)', $charset, $res)) {
         if ($res[1] == '1')
            return charset_decode_iso_8859_1 ($string);
         else if ($res[1] == '2')
            return charset_decode_iso_8859_2 ($string);
         else if ($res[1] == '7')
            return charset_decode_iso_8859_7 ($string);
         else if ($res[1] == '15')
            return charset_decode_iso_8859_15 ($string);
         else
            return charset_decode_iso_8859_default ($string);
      } else if ($charset == 'ns_4551-1') {
         return charset_decode_ns_4551_1 ($string);
      } else if ($charset == 'koi8-r') {
        return charset_decode_koi8r ($string);
      } else
         return $string;
   }

   // iso-8859-1 is the same as Latin 1 and is normally used
   // in western europe.
   function charset_decode_iso_8859_1 ($string) {
      global $default_charset;

      if (strtolower($default_charset) == 'iso-8859-1') {
         return $string;
      } else { 
         // Only do the slow convert if there are 8-bit characters
         if (ereg("[\200-\377]", $string)) {
            $string = str_replace("\201", '&#129;', $string);
            $string = str_replace("\202", '&#130;', $string);
            $string = str_replace("\203", '&#131;', $string);
            $string = str_replace("\204", '&#132;', $string);
            $string = str_replace("\205", '&#133;', $string);
            $string = str_replace("\206", '&#134;', $string);
            $string = str_replace("\207", '&#135;', $string);
            $string = str_replace("\210", '&#136;', $string);
            $string = str_replace("\211", '&#137;', $string);
            $string = str_replace("\212", '&#138;', $string);
            $string = str_replace("\213", '&#139;', $string);
            $string = str_replace("\214", '&#140;', $string);
            $string = str_replace("\215", '&#141;', $string);
            $string = str_replace("\216", '&#142;', $string);
            $string = str_replace("\217", '&#143;', $string);
            $string = str_replace("\220", '&#144;', $string);
            $string = str_replace("\221", '&#145;', $string);
            $string = str_replace("\222", '&#146;', $string);
            $string = str_replace("\223", '&#147;', $string);
            $string = str_replace("\224", '&#148;', $string);
            $string = str_replace("\225", '&#149;', $string);
            $string = str_replace("\226", '&#150;', $string);
            $string = str_replace("\227", '&#151;', $string);
            $string = str_replace("\230", '&#152;', $string);
            $string = str_replace("\231", '&#153;', $string);
            $string = str_replace("\232", '&#154;', $string);
            $string = str_replace("\233", '&#155;', $string);
            $string = str_replace("\234", '&#156;', $string);
            $string = str_replace("\235", '&#157;', $string);
            $string = str_replace("\236", '&#158;', $string);
            $string = str_replace("\237", '&#159;', $string);
            $string = str_replace("\240", '&#160;', $string);
            $string = str_replace("\241", '&#161;', $string);
            $string = str_replace("\242", '&#162;', $string);
            $string = str_replace("\243", '&#163;', $string);
            $string = str_replace("\244", '&#164;', $string);
            $string = str_replace("\245", '&#165;', $string);
            $string = str_replace("\246", '&#166;', $string);
            $string = str_replace("\247", '&#167;', $string);
            $string = str_replace("\250", '&#168;', $string);
            $string = str_replace("\251", '&#169;', $string);
            $string = str_replace("\252", '&#170;', $string);
            $string = str_replace("\253", '&#171;', $string);
            $string = str_replace("\254", '&#172;', $string);
            $string = str_replace("\255", '&#173;', $string);
            $string = str_replace("\256", '&#174;', $string);
            $string = str_replace("\257", '&#175;', $string);
            $string = str_replace("\260", '&#176;', $string);
            $string = str_replace("\261", '&#177;', $string);
            $string = str_replace("\262", '&#178;', $string);
            $string = str_replace("\263", '&#179;', $string);
            $string = str_replace("\264", '&#180;', $string);
            $string = str_replace("\265", '&#181;', $string);
            $string = str_replace("\266", '&#182;', $string);
            $string = str_replace("\267", '&#183;', $string);
            $string = str_replace("\270", '&#184;', $string);
            $string = str_replace("\271", '&#185;', $string);
            $string = str_replace("\272", '&#186;', $string);
            $string = str_replace("\273", '&#187;', $string);
            $string = str_replace("\274", '&#188;', $string);
            $string = str_replace("\275", '&#189;', $string);
            $string = str_replace("\276", '&#190;', $string);
            $string = str_replace("\277", '&#191;', $string);
            $string = str_replace("\300", '&#192;', $string);
            $string = str_replace("\301", '&#193;', $string);
            $string = str_replace("\302", '&#194;', $string);
            $string = str_replace("\303", '&#195;', $string);
            $string = str_replace("\304", '&#196;', $string);
            $string = str_replace("\305", '&#197;', $string);
            $string = str_replace("\306", '&#198;', $string);
            $string = str_replace("\307", '&#199;', $string);
            $string = str_replace("\310", '&#200;', $string);
            $string = str_replace("\311", '&#201;', $string);
            $string = str_replace("\312", '&#202;', $string);
            $string = str_replace("\313", '&#203;', $string);
            $string = str_replace("\314", '&#204;', $string);
            $string = str_replace("\315", '&#205;', $string);
            $string = str_replace("\316", '&#206;', $string);
            $string = str_replace("\317", '&#207;', $string);
            $string = str_replace("\320", '&#208;', $string);
            $string = str_replace("\321", '&#209;', $string);
            $string = str_replace("\322", '&#210;', $string);
            $string = str_replace("\323", '&#211;', $string);
            $string = str_replace("\324", '&#212;', $string);
            $string = str_replace("\325", '&#213;', $string);
            $string = str_replace("\326", '&#214;', $string);
            $string = str_replace("\327", '&#215;', $string);
            $string = str_replace("\330", '&#216;', $string);
            $string = str_replace("\331", '&#217;', $string);
            $string = str_replace("\332", '&#218;', $string);
            $string = str_replace("\333", '&#219;', $string);
            $string = str_replace("\334", '&#220;', $string);
            $string = str_replace("\335", '&#221;', $string);
            $string = str_replace("\336", '&#222;', $string);
            $string = str_replace("\337", '&#223;', $string);
            $string = str_replace("\340", '&#224;', $string);
            $string = str_replace("\341", '&#225;', $string);
            $string = str_replace("\342", '&#226;', $string);
            $string = str_replace("\343", '&#227;', $string);
            $string = str_replace("\344", '&#228;', $string);
            $string = str_replace("\345", '&#229;', $string);
            $string = str_replace("\346", '&#230;', $string);
            $string = str_replace("\347", '&#231;', $string);
            $string = str_replace("\350", '&#232;', $string);
            $string = str_replace("\351", '&#233;', $string);
            $string = str_replace("\352", '&#234;', $string);
            $string = str_replace("\353", '&#235;', $string);
            $string = str_replace("\354", '&#236;', $string);
            $string = str_replace("\355", '&#237;', $string);
            $string = str_replace("\356", '&#238;', $string);
            $string = str_replace("\357", '&#239;', $string);
            $string = str_replace("\360", '&#240;', $string);
            $string = str_replace("\361", '&#241;', $string);
            $string = str_replace("\362", '&#242;', $string);
            $string = str_replace("\363", '&#243;', $string);
            $string = str_replace("\364", '&#244;', $string);
            $string = str_replace("\365", '&#245;', $string);
            $string = str_replace("\366", '&#246;', $string);
            $string = str_replace("\367", '&#247;', $string);
            $string = str_replace("\370", '&#248;', $string);
            $string = str_replace("\371", '&#249;', $string);
            $string = str_replace("\372", '&#250;', $string);
            $string = str_replace("\373", '&#251;', $string);
            $string = str_replace("\374", '&#252;', $string);
            $string = str_replace("\375", '&#253;', $string);
            $string = str_replace("\376", '&#254;', $string);
            $string = str_replace("\377", '&#255;', $string);
         }
      }

      return ($string);
   }

   // iso-8859-2 is used for some eastern European languages
   function charset_decode_iso_8859_2 ($string) {
      global $default_charset;

      if (strtolower($default_charset) == 'iso-8859-2')
         return $string;
     
      // Only do the slow convert if there are 8-bit characters
      if (! ereg("[\200-\377]", $string))
         return $string;
	 
      // NO-BREAK SPACE
      $string = str_replace("\240", '&#160;', $string);
      // LATIN CAPITAL LETTER A WITH OGONEK
      $string = str_replace("\241", '&#260;', $string);
      // BREVE
      $string = str_replace("\242", '&#728;', $string);
      // LATIN CAPITAL LETTER L WITH STROKE
      $string = str_replace("\243", '&#321;', $string);
      // CURRENCY SIGN
      $string = str_replace("\244", '&#164;', $string);
      // LATIN CAPITAL LETTER L WITH CARON
      $string = str_replace("\245", '&#317;', $string);
      // LATIN CAPITAL LETTER S WITH ACUTE
      $string = str_replace("\246", '&#346;', $string);
      // SECTION SIGN
      $string = str_replace("\247", '&#167;', $string);
      // DIAERESIS
      $string = str_replace("\250", '&#168;', $string);
      // LATIN CAPITAL LETTER S WITH CARON
      $string = str_replace("\251", '&#352;', $string);
      // LATIN CAPITAL LETTER S WITH CEDILLA
      $string = str_replace("\252", '&#350;', $string);
      // LATIN CAPITAL LETTER T WITH CARON
      $string = str_replace("\253", '&#356;', $string);
      // LATIN CAPITAL LETTER Z WITH ACUTE
      $string = str_replace("\254", '&#377;', $string);
      // SOFT HYPHEN
      $string = str_replace("\255", '&#173;', $string);
      // LATIN CAPITAL LETTER Z WITH CARON
      $string = str_replace("\256", '&#381;', $string);
      // LATIN CAPITAL LETTER Z WITH DOT ABOVE
      $string = str_replace("\257", '&#379;', $string);
      // DEGREE SIGN
      $string = str_replace("\260", '&#176;', $string);
      // LATIN SMALL LETTER A WITH OGONEK
      $string = str_replace("\261", '&#261;', $string);
      // OGONEK
      $string = str_replace("\262", '&#731;', $string);
      // LATIN SMALL LETTER L WITH STROKE
      $string = str_replace("\263", '&#322;', $string);
      // ACUTE ACCENT
      $string = str_replace("\264", '&#180;', $string);
      // LATIN SMALL LETTER L WITH CARON
      $string = str_replace("\265", '&#318;', $string);
      // LATIN SMALL LETTER S WITH ACUTE
      $string = str_replace("\266", '&#347;', $string);
      // CARON
      $string = str_replace("\267", '&#711;', $string);
      // CEDILLA
      $string = str_replace("\270", '&#184;', $string);
      // LATIN SMALL LETTER S WITH CARON
      $string = str_replace("\271", '&#353;', $string);
      // LATIN SMALL LETTER S WITH CEDILLA
      $string = str_replace("\272", '&#351;', $string);
      // LATIN SMALL LETTER T WITH CARON
      $string = str_replace("\273", '&#357;', $string);
      // LATIN SMALL LETTER Z WITH ACUTE
      $string = str_replace("\274", '&#378;', $string);
      // DOUBLE ACUTE ACCENT
      $string = str_replace("\275", '&#733;', $string);
      // LATIN SMALL LETTER Z WITH CARON
      $string = str_replace("\276", '&#382;', $string);
      // LATIN SMALL LETTER Z WITH DOT ABOVE
      $string = str_replace("\277", '&#380;', $string);
      // LATIN CAPITAL LETTER R WITH ACUTE
      $string = str_replace("\300", '&#340;', $string);
      // LATIN CAPITAL LETTER A WITH ACUTE
      $string = str_replace("\301", '&#193;', $string);
      // LATIN CAPITAL LETTER A WITH CIRCUMFLEX
      $string = str_replace("\302", '&#194;', $string);
      // LATIN CAPITAL LETTER A WITH BREVE
      $string = str_replace("\303", '&#258;', $string);
      // LATIN CAPITAL LETTER A WITH DIAERESIS
      $string = str_replace("\304", '&#196;', $string);
      // LATIN CAPITAL LETTER L WITH ACUTE
      $string = str_replace("\305", '&#313;', $string);
      // LATIN CAPITAL LETTER C WITH ACUTE
      $string = str_replace("\306", '&#262;', $string);
      // LATIN CAPITAL LETTER C WITH CEDILLA
      $string = str_replace("\307", '&#199;', $string);
      // LATIN CAPITAL LETTER C WITH CARON
      $string = str_replace("\310", '&#268;', $string);
      // LATIN CAPITAL LETTER E WITH ACUTE
      $string = str_replace("\311", '&#201;', $string);
      // LATIN CAPITAL LETTER E WITH OGONEK
      $string = str_replace("\312", '&#280;', $string);
      // LATIN CAPITAL LETTER E WITH DIAERESIS
      $string = str_replace("\313", '&#203;', $string);
      // LATIN CAPITAL LETTER E WITH CARON
      $string = str_replace("\314", '&#282;', $string);
      // LATIN CAPITAL LETTER I WITH ACUTE
      $string = str_replace("\315", '&#205;', $string);
      // LATIN CAPITAL LETTER I WITH CIRCUMFLEX
      $string = str_replace("\316", '&#206;', $string);
      // LATIN CAPITAL LETTER D WITH CARON
      $string = str_replace("\317", '&#270;', $string);
      // LATIN CAPITAL LETTER D WITH STROKE
      $string = str_replace("\320", '&#272;', $string);
      // LATIN CAPITAL LETTER N WITH ACUTE
      $string = str_replace("\321", '&#323;', $string);
      // LATIN CAPITAL LETTER N WITH CARON
      $string = str_replace("\322", '&#327;', $string);
      // LATIN CAPITAL LETTER O WITH ACUTE
      $string = str_replace("\323", '&#211;', $string);
      // LATIN CAPITAL LETTER O WITH CIRCUMFLEX
      $string = str_replace("\324", '&#212;', $string);
      // LATIN CAPITAL LETTER O WITH DOUBLE ACUTE
      $string = str_replace("\325", '&#336;', $string);
      // LATIN CAPITAL LETTER O WITH DIAERESIS
      $string = str_replace("\326", '&#214;', $string);
      // MULTIPLICATION SIGN
      $string = str_replace("\327", '&#215;', $string);
      // LATIN CAPITAL LETTER R WITH CARON
      $string = str_replace("\330", '&#344;', $string);
      // LATIN CAPITAL LETTER U WITH RING ABOVE
      $string = str_replace("\331", '&#366;', $string);
      // LATIN CAPITAL LETTER U WITH ACUTE
      $string = str_replace("\332", '&#218;', $string);
      // LATIN CAPITAL LETTER U WITH DOUBLE ACUTE
      $string = str_replace("\333", '&#368;', $string);
      // LATIN CAPITAL LETTER U WITH DIAERESIS
      $string = str_replace("\334", '&#220;', $string);
      // LATIN CAPITAL LETTER Y WITH ACUTE
      $string = str_replace("\335", '&#221;', $string);
      // LATIN CAPITAL LETTER T WITH CEDILLA
      $string = str_replace("\336", '&#354;', $string);
      // LATIN SMALL LETTER SHARP S
      $string = str_replace("\337", '&#223;', $string);
      // LATIN SMALL LETTER R WITH ACUTE
      $string = str_replace("\340", '&#341;', $string);
      // LATIN SMALL LETTER A WITH ACUTE
      $string = str_replace("\341", '&#225;', $string);
      // LATIN SMALL LETTER A WITH CIRCUMFLEX
      $string = str_replace("\342", '&#226;', $string);
      // LATIN SMALL LETTER A WITH BREVE
      $string = str_replace("\343", '&#259;', $string);
      // LATIN SMALL LETTER A WITH DIAERESIS
      $string = str_replace("\344", '&#228;', $string);
      // LATIN SMALL LETTER L WITH ACUTE
      $string = str_replace("\345", '&#314;', $string);
      // LATIN SMALL LETTER C WITH ACUTE
      $string = str_replace("\346", '&#263;', $string);
      // LATIN SMALL LETTER C WITH CEDILLA
      $string = str_replace("\347", '&#231;', $string);
      // LATIN SMALL LETTER C WITH CARON
      $string = str_replace("\350", '&#269;', $string);
      // LATIN SMALL LETTER E WITH ACUTE
      $string = str_replace("\351", '&#233;', $string);
      // LATIN SMALL LETTER E WITH OGONEK
      $string = str_replace("\352", '&#281;', $string);
      // LATIN SMALL LETTER E WITH DIAERESIS
      $string = str_replace("\353", '&#235;', $string);
      // LATIN SMALL LETTER E WITH CARON
      $string = str_replace("\354", '&#283;', $string);
      // LATIN SMALL LETTER I WITH ACUTE
      $string = str_replace("\355", '&#237;', $string);
      // LATIN SMALL LETTER I WITH CIRCUMFLEX
      $string = str_replace("\356", '&#238;', $string);
      // LATIN SMALL LETTER D WITH CARON
      $string = str_replace("\357", '&#271;', $string);
      // LATIN SMALL LETTER D WITH STROKE
      $string = str_replace("\360", '&#273;', $string);
      // LATIN SMALL LETTER N WITH ACUTE
      $string = str_replace("\361", '&#324;', $string);
      // LATIN SMALL LETTER N WITH CARON
      $string = str_replace("\362", '&#328;', $string);
      // LATIN SMALL LETTER O WITH ACUTE
      $string = str_replace("\363", '&#243;', $string);
      // LATIN SMALL LETTER O WITH CIRCUMFLEX
      $string = str_replace("\364", '&#244;', $string);
      // LATIN SMALL LETTER O WITH DOUBLE ACUTE
      $string = str_replace("\365", '&#337;', $string);
      // LATIN SMALL LETTER O WITH DIAERESIS
      $string = str_replace("\366", '&#246;', $string);
      // DIVISION SIGN
      $string = str_replace("\367", '&#247;', $string);
      // LATIN SMALL LETTER R WITH CARON
      $string = str_replace("\370", '&#345;', $string);
      // LATIN SMALL LETTER U WITH RING ABOVE
      $string = str_replace("\371", '&#367;', $string);
      // LATIN SMALL LETTER U WITH ACUTE
      $string = str_replace("\372", '&#250;', $string);
      // LATIN SMALL LETTER U WITH DOUBLE ACUTE
      $string = str_replace("\373", '&#369;', $string);
      // LATIN SMALL LETTER U WITH DIAERESIS
      $string = str_replace("\374", '&#252;', $string);
      // LATIN SMALL LETTER Y WITH ACUTE
      $string = str_replace("\375", '&#253;', $string);
      // LATIN SMALL LETTER T WITH CEDILLA
      $string = str_replace("\376", '&#355;', $string);
      // DOT ABOVE
      $string = str_replace("\377", '&#729;', $string);

      return $string;
   }

   // iso-8859-7 is Greek.
   function charset_decode_iso_8859_7 ($string) {
      global $default_charset;

      if (strtolower($default_charset) == 'iso-8859-7')
         return $string;
	 
      // Only do the slow convert if there are 8-bit characters
      if (!ereg("[\200-\377]", $string))
         return $string;
	 
      // Some diverse characters in the beginning
      $string = str_replace("\240", '&#160;', $string);
      $string = str_replace("\241", '&#8216;', $string);
      $string = str_replace("\242", '&#8217;', $string);
      $string = str_replace("\243", '&#163;', $string);
      $string = str_replace("\246", '&#166;', $string);
      $string = str_replace("\247", '&#167;', $string);
      $string = str_replace("\250", '&#168;', $string);
      $string = str_replace("\251", '&#169;', $string);
      $string = str_replace("\253", '&#171;', $string);
      $string = str_replace("\254", '&#172;', $string);
      $string = str_replace("\255", '&#173;', $string);
      $string = str_replace("\257", '&#8213;', $string);
      $string = str_replace("\260", '&#176;', $string);
      $string = str_replace("\261", '&#177;', $string);
      $string = str_replace("\262", '&#178;', $string);
      $string = str_replace("\263", '&#179;', $string);
      
      // Horizontal bar (parentheki pavla)
      $string = str_replace ("\257", '&#8213;', $string);
      
      // ISO-8859-7 characters from 11/04 (0xB4) to 11/06 (0xB6)
      // These are Unicode 900-902
      while (ereg("([\264-\266])", $string, $res)) {
         $replace = '&#' . (ord($res[1])+720) . ';';
         $string = str_replace($res[1], $replace, $string);
      }
         
      // 11/07 (0xB7) Middle dot is the same in iso-8859-1
      $string = str_replace("\267", '&#183;', $string);
      
      // ISO-8859-7 characters from 11/08 (0xB8) to 11/10 (0xBA)
      // These are Unicode 900-902
      while (ereg("([\270-\272])", $string, $res)) {
         $replace = '&#' . (ord($res[1])+720) . ";";
	 $string = str_replace($res[1], $replace, $string);
      }
         
      // 11/11 (0xBB) Right angle quotation mark is the same as in
      // iso-8859-1
      $string = str_replace("\273", '&#187;', $string);
         
      // And now the rest of the charset
      while (ereg("([\274-\376])", $string, $res)) {
         $replace = '&#' . (ord($res[1])+720) . ';';
	 $string = str_replace($res[1], $replace, $string);
      }

      return $string;
   }

   // iso-8859-15 is Latin 9 and has very much the same use as Latin 1
   // but has the Euro symbol and some characters needed for French.
   function charset_decode_iso_8859_15 ($string) {
      // Euro sign
      $string = str_replace ("\244", '&#8364;', $string);
      // Latin capital letter S with caron
      $string = str_replace ("\244", '&#352;', $string);
      // Latin small letter s with caron
      $string = str_replace ("\250", '&#353;', $string);
      // Latin capital letter Z with caron
      $string = str_replace ("\264", '&#381;', $string);
      // Latin small letter z with caron
      $string = str_replace ("\270", '&#382;', $string);
      // Latin capital ligature OE
      $string = str_replace ("\274", '&#338;', $string);
      // Latin small ligature oe
      $string = str_replace ("\275", '&#339;', $string);
      // Latin capital letter Y with diaeresis
      $string = str_replace ("\276", '&#376;', $string);

      return (charset_decode_iso_8859_1($string));
   }

   // ISO-8859-15 is Cyrillic
   function charset_decode_iso_8859_5 ($string) {
      // Convert to KOI8-R, then return this decoded.
      $string = convert_cyr_string($string, 'i', 'k');
      return charset_decode_koi8r($string);
   }

   // Remove all 8 bit characters from all other ISO-8859 character sets
   function charset_decode_iso_8859_default ($string) {
      return (strtr($string, "\240\241\242\243\244\245\246\247".
                    "\250\251\252\253\254\255\256\257".
                    "\260\261\262\263\264\265\266\267".
                    "\270\271\272\273\274\275\276\277".
                    "\300\301\302\303\304\305\306\307".
                    "\310\311\312\313\314\315\316\317".
                    "\320\321\322\323\324\325\326\327".
                    "\330\331\332\333\334\335\336\337".
                    "\340\341\342\343\344\345\346\347".
                    "\350\351\352\353\354\355\356\357".
                    "\360\361\362\363\364\365\366\367".
                    "\370\371\372\373\374\375\376\377", 
                    "????????????????????????????????????????".
                    "????????????????????????????????????????".
                    "????????????????????????????????????????".
                    "????????"));
      
   }

   // This is the same as ISO-646-NO and is used by some
   // Microsoft programs when sending Norwegian characters
   function charset_decode_ns_4551_1 ($string) {
      // These characters are:
      // Latin capital letter AE
      // Latin capital letter O with stroke
      // Latin capital letter A with ring above
      // and the same as small letters
      return strtr ($string, "[\\]{|}", "ÆØÅæøå");
   }

   // KOI8-R is used to encode Russian mail (Cyrrilic). Defined in RFC
   // 1489.
   function charset_decode_koi8r ($string) {
      global $default_charset;

      if ($default_charset == 'koi8-r')
         return $string;
	 
      // Convert to Unicode HTML entities.
      // This code is rather ineffective.
      $string = str_replace("\200", '&#9472;', $string);
      $string = str_replace("\201", '&#9474;', $string);
      $string = str_replace("\202", '&#9484;', $string);
      $string = str_replace("\203", '&#9488;', $string);
      $string = str_replace("\204", '&#9492;', $string);
      $string = str_replace("\205", '&#9496;', $string);
      $string = str_replace("\206", '&#9500;', $string);
      $string = str_replace("\207", '&#9508;', $string);
      $string = str_replace("\210", '&#9516;', $string);
      $string = str_replace("\211", '&#9524;', $string);
      $string = str_replace("\212", '&#9532;', $string);
      $string = str_replace("\213", '&#9600;', $string);
      $string = str_replace("\214", '&#9604;', $string);
      $string = str_replace("\215", '&#9608;', $string);
      $string = str_replace("\216", '&#9612;', $string);
      $string = str_replace("\217", '&#9616;', $string);
      $string = str_replace("\220", '&#9617;', $string);
      $string = str_replace("\221", '&#9618;', $string);
      $string = str_replace("\222", '&#9619;', $string);
      $string = str_replace("\223", '&#8992;', $string);
      $string = str_replace("\224", '&#9632;', $string);
      $string = str_replace("\225", '&#8729;', $string);
      $string = str_replace("\226", '&#8730;', $string);
      $string = str_replace("\227", '&#8776;', $string);
      $string = str_replace("\230", '&#8804;', $string);
      $string = str_replace("\231", '&#8805;', $string);
      $string = str_replace("\232", '&#160;', $string);
      $string = str_replace("\233", '&#8993;', $string);
      $string = str_replace("\234", '&#176;', $string);
      $string = str_replace("\235", '&#178;', $string);
      $string = str_replace("\236", '&#183;', $string);
      $string = str_replace("\237", '&#247;', $string);
      $string = str_replace("\240", '&#9552;', $string);
      $string = str_replace("\241", '&#9553;', $string);
      $string = str_replace("\242", '&#9554;', $string);
      $string = str_replace("\243", '&#1105;', $string);
      $string = str_replace("\244", '&#9555;', $string);
      $string = str_replace("\245", '&#9556;', $string);
      $string = str_replace("\246", '&#9557;', $string);
      $string = str_replace("\247", '&#9558;', $string);
      $string = str_replace("\250", '&#9559;', $string);
      $string = str_replace("\251", '&#9560;', $string);
      $string = str_replace("\252", '&#9561;', $string);
      $string = str_replace("\253", '&#9562;', $string);
      $string = str_replace("\254", '&#9563;', $string);
      $string = str_replace("\255", '&#9564;', $string);
      $string = str_replace("\256", '&#9565;', $string);
      $string = str_replace("\257", '&#9566;', $string);
      $string = str_replace("\260", '&#9567;', $string);
      $string = str_replace("\261", '&#9568;', $string);
      $string = str_replace("\262", '&#9569;', $string);
      $string = str_replace("\263", '&#1025;', $string);
      $string = str_replace("\264", '&#9570;', $string);
      $string = str_replace("\265", '&#9571;', $string);
      $string = str_replace("\266", '&#9572;', $string);
      $string = str_replace("\267", '&#9573;', $string);
      $string = str_replace("\270", '&#9574;', $string);
      $string = str_replace("\271", '&#9575;', $string);
      $string = str_replace("\272", '&#9576;', $string);
      $string = str_replace("\273", '&#9577;', $string);
      $string = str_replace("\274", '&#9578;', $string);
      $string = str_replace("\275", '&#9579;', $string);
      $string = str_replace("\276", '&#9580;', $string);
      $string = str_replace("\277", '&#169;', $string);
      $string = str_replace("\300", '&#1102;', $string);
      $string = str_replace("\301", '&#1072;', $string);
      $string = str_replace("\302", '&#1073;', $string);
      $string = str_replace("\303", '&#1094;', $string);
      $string = str_replace("\304", '&#1076;', $string);
      $string = str_replace("\305", '&#1077;', $string);
      $string = str_replace("\306", '&#1092;', $string);
      $string = str_replace("\307", '&#1075;', $string);
      $string = str_replace("\310", '&#1093;', $string);
      $string = str_replace("\311", '&#1080;', $string);
      $string = str_replace("\312", '&#1081;', $string);
      $string = str_replace("\313", '&#1082;', $string);
      $string = str_replace("\314", '&#1083;', $string);
      $string = str_replace("\315", '&#1084;', $string);
      $string = str_replace("\316", '&#1085;', $string);
      $string = str_replace("\317", '&#1086;', $string);
      $string = str_replace("\320", '&#1087;', $string);
      $string = str_replace("\321", '&#1103;', $string);
      $string = str_replace("\322", '&#1088;', $string);
      $string = str_replace("\323", '&#1089;', $string);
      $string = str_replace("\324", '&#1090;', $string);
      $string = str_replace("\325", '&#1091;', $string);
      $string = str_replace("\326", '&#1078;', $string);
      $string = str_replace("\327", '&#1074;', $string);
      $string = str_replace("\330", '&#1100;', $string);
      $string = str_replace("\331", '&#1099;', $string);
      $string = str_replace("\332", '&#1079;', $string);
      $string = str_replace("\333", '&#1096;', $string);
      $string = str_replace("\334", '&#1101;', $string);
      $string = str_replace("\335", '&#1097;', $string);
      $string = str_replace("\336", '&#1095;', $string);
      $string = str_replace("\337", '&#1098;', $string);
      $string = str_replace("\340", '&#1070;', $string);
      $string = str_replace("\341", '&#1040;', $string);
      $string = str_replace("\342", '&#1041;', $string);
      $string = str_replace("\343", '&#1062;', $string);
      $string = str_replace("\344", '&#1044;', $string);
      $string = str_replace("\345", '&#1045;', $string);
      $string = str_replace("\346", '&#1060;', $string);
      $string = str_replace("\347", '&#1043;', $string);
      $string = str_replace("\350", '&#1061;', $string);
      $string = str_replace("\351", '&#1048;', $string);
      $string = str_replace("\352", '&#1049;', $string);
      $string = str_replace("\353", '&#1050;', $string);
      $string = str_replace("\354", '&#1051;', $string);
      $string = str_replace("\355", '&#1052;', $string);
      $string = str_replace("\356", '&#1053;', $string);
      $string = str_replace("\357", '&#1054;', $string);
      $string = str_replace("\360", '&#1055;', $string);
      $string = str_replace("\361", '&#1071;', $string);
      $string = str_replace("\362", '&#1056;', $string);
      $string = str_replace("\363", '&#1057;', $string);
      $string = str_replace("\364", '&#1058;', $string);
      $string = str_replace("\365", '&#1059;', $string);
      $string = str_replace("\366", '&#1046;', $string);
      $string = str_replace("\367", '&#1042;', $string);
      $string = str_replace("\370", '&#1068;', $string);
      $string = str_replace("\371", '&#1067;', $string);
      $string = str_replace("\372", '&#1047;', $string);
      $string = str_replace("\373", '&#1064;', $string);
      $string = str_replace("\374", '&#1069;', $string);
      $string = str_replace("\375", '&#1065;', $string);
      $string = str_replace("\376", '&#1063;', $string);
      $string = str_replace("\377", '&#1066;', $string);
      
      return $string;
   }


   global $use_gettext;
   
   // Detect whether gettext is installed.
   $gettext_flags = 0;
   if (function_exists('_')) $gettext_flags += 1;
   if (function_exists('bindtextdomain')) $gettext_flags += 2;
   if (function_exists('textdomain')) $gettext_flags += 4;

   // If gettext is fully loaded, cool
   if ($gettext_flags == 7)
      $use_gettext = true;
   // If we can fake gettext, try that
   elseif ($gettext_flags == 0) {
      $use_gettext = true;
      include('../functions/gettext.php');
   } else {
      // Uh-ho.  A weird install
      if (! $gettext_flags & 1) {
         function _($str) { return $str; };
      }
      if (! $gettext_flags & 2) {
         function bindtextdomain() { return; }
      }
      if (! $gettext_flags & 4) {
         function textdomain() { return; }
      }
   }


   // Set up the language to be output
   // if $do_search is true, then scan the browser information
   // for a possible language that we know
   function set_up_language($sm_language, $do_search = false)
   {
      static $SetupAlready = 0;
      global $HTTP_ACCEPT_LANGUAGE, $use_gettext, $languages, 
          $squirrelmail_language, $squirrelmail_default_language, 
	  $sm_notAlias;
      
      if ($SetupAlready)
         return;

      $SetupAlready = 1;
      
      $charset_headers_sent=false;
      
      if ($do_search && ! $sm_language && isset($HTTP_ACCEPT_LANGUAGE)) {
         $sm_language = substr($HTTP_ACCEPT_LANGUAGE, 0, 2);
      }
      if (! $sm_language && isset($squirrelmail_default_language))
         $sm_language = $squirrelmail_default_language;
      $sm_notAlias = $sm_language;
      while (isset($languages[$sm_notAlias]['ALIAS']))
         $sm_notAlias = $languages[$sm_notAlias]['ALIAS'];

      if (isset($sm_language) && $use_gettext &&
          $squirrelmail_language != '' &&
 	  isset($languages[$sm_notAlias]['CHARSET'])) {
         if ((ini_get('safe_mode') == FALSE) && (getenv('LC_ALL') != $sm_language)) {
           putenv('LC_ALL=' . $sm_notAlias);
         }
         setlocale('LC_ALL', $sm_notAlias);
         bindtextdomain('squirrelmail', '../locale/');
         textdomain('squirrelmail');
         header ('Content-Type: text/html; charset=' . $languages[$sm_language]['CHARSET']);
      }
   }

   function set_my_charset(){
     //
     // There can be a $default_charset setting in the
     // config.php file, but the user may have a different language
     // selected for a user interface. This function checks the
     // language selected by the user and tags the outgoing messages 
     // with the appropriate charset corresponding to the language
     // selection. This is "more right" (tm), than just stamping the 
     // message blindly with the system-wide $default_charset.
     //
     global $data_dir, $username, $default_charset, $languages;
     $my_language = getPref($data_dir, $username, "language");
     if (!$my_language) return;
     while (isset($languages[$my_language]['ALIAS']))
        $my_language = $languages[$my_language]['ALIAS'];
     $my_charset=$languages[$my_language]['CHARSET'];
     if ($my_charset) $default_charset=$my_charset;
   }

?>