<?php

/**
 * i18n.php
 *
 * Copyright (c) 1999-2004 The SquirrelMail Project Team
 * Licensed under the GNU GPL. For full terms see the file COPYING.
 *
 * 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: i18n.php,v 1.129.2.21 2004/05/19 15:57:23 tokul Exp $
 */

require_once(SM_PATH . 'functions/global.php');

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

    $charset = strtolower($charset);

    if ($charset == 'iso-2022-jp' || $charset == 'shift_jis' || $charset == 'euc-jp' ||
        ($charset == '' && $squirrelmail_language == 'ja_JP') ||
        ($charset == 'utf-8' && $squirrelmail_language == 'ja_JP')) {
        $string = $languages['ja_JP']['XTRA_CODE']('decode', $string);
    }

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

    set_my_charset() ;

    /* controls cpu and memory intensive decoding cycles */
    $agresive_decoding = false;

    if (ereg('iso-8859-([[:digit:]]+)', $charset, $res)) {
        if ($res[1] == '1') {
	    include_once(SM_PATH . 'functions/decode/iso8859-1.php');
            $ret = charset_decode_iso8859_1 ($string);
        } else if ($res[1] == '2') {
	    include_once(SM_PATH . 'functions/decode/iso8859-2.php');
            $ret = charset_decode_iso8859_2 ($string);
        } else if ($res[1] == '3') {
	    include_once(SM_PATH . 'functions/decode/iso8859-3.php');
            $ret = charset_decode_iso8859_3 ($string);
        } else if ($res[1] == '4') {
	    include_once(SM_PATH . 'functions/decode/iso8859-4.php');
            $ret = charset_decode_iso8859_4 ($string);
        } else if ($res[1] == '5') {
	    include_once(SM_PATH . 'functions/decode/iso8859-5.php');
            $ret = charset_decode_iso8859_5 ($string);
        } else if ($res[1] == '6') {
	    include_once(SM_PATH . 'functions/decode/iso8859-6.php');
            $ret = charset_decode_iso8859_6 ($string);
        } else if ($res[1] == '7') {
	    include_once(SM_PATH . 'functions/decode/iso8859-7.php');
            $ret = charset_decode_iso8859_7 ($string);
        } else if ($res[1] == '8') {
	    include_once(SM_PATH . 'functions/decode/iso8859-8.php');
            $ret = charset_decode_iso8859_8 ($string);
        } else if ($res[1] == '9') {
	    include_once(SM_PATH . 'functions/decode/iso8859-9.php');
            $ret = charset_decode_iso8859_9 ($string);
        } else if ($res[1] == '10') {
	    include_once(SM_PATH . 'functions/decode/iso8859-10.php');
            $ret = charset_decode_iso8859_10 ($string);
        } else if ($res[1] == '11') {
	    include_once(SM_PATH . 'functions/decode/iso8859-11.php');
            $ret = charset_decode_iso8859_11 ($string);
        } else if ($res[1] == '13') {
	    include_once(SM_PATH . 'functions/decode/iso8859-13.php');
            $ret = charset_decode_iso8859_13 ($string);
        } else if ($res[1] == '14') {
	    include_once(SM_PATH . 'functions/decode/iso8859-14.php');
            $ret = charset_decode_iso8859_14 ($string);
        } else if ($res[1] == '15') {
	    include_once(SM_PATH . 'functions/decode/iso8859-15.php');
            $ret = charset_decode_iso8859_15 ($string);
        } else if ($res[1] == '16') {
	    include_once(SM_PATH . 'functions/decode/iso8859-16.php');
            $ret = charset_decode_iso8859_16 ($string);
        } else {
            $ret = charset_decode_iso_8859_default ($string);
        }
    } else if ($charset == 'iso-2022-jp') {
        if ($squirrelmail_language != 'ja_JP') {
			include_once(SM_PATH . 'functions/decode/utf-8.php');
            $ret = charset_decode_utf8 (@mb_convert_encoding($string, 'UTF-8', 'AUTO'));
        } else {
            $ret = $string;
        }
    } else if ($charset == 'ns_4551-1') {
        $ret = charset_decode_ns_4551_1 ($string);
    } else if ($charset == 'koi8-r') {
        include_once(SM_PATH . 'functions/decode/koi8-r.php');
        $ret = charset_decode_koi8r ($string);
    } else if ($charset == 'koi8-u') {
        include_once(SM_PATH . 'functions/decode/koi8-u.php');
        $ret = charset_decode_koi8u ($string);
    } else if ($charset == 'windows-1250') {
        include_once(SM_PATH . 'functions/decode/cp1250.php');
        $ret = charset_decode_cp1250 ($string);
    } else if ($charset == 'windows-1251') {
        include_once(SM_PATH . 'functions/decode/cp1251.php');
        $ret = charset_decode_cp1251 ($string);
    } else if ($charset == 'windows-1252') {
        include_once(SM_PATH . 'functions/decode/cp1252.php');
        $ret = charset_decode_cp1252 ($string);
    } else if ($charset == 'windows-1253') {
        include_once(SM_PATH . 'functions/decode/cp1253.php');
	$ret = charset_decode_cp1253 ($string);
    } else if ($charset == 'windows-1254') {
        include_once(SM_PATH . 'functions/decode/cp1254.php');
	$ret = charset_decode_cp1254 ($string);
    } else if ($charset == 'windows-1255') {
        include_once(SM_PATH . 'functions/decode/cp1255.php');
	$ret = charset_decode_cp1255 ($string);
    } else if ($charset == 'windows-1256') {
        include_once(SM_PATH . 'functions/decode/cp1256.php');
	$ret = charset_decode_cp1256 ($string);
    } else if ($charset == 'windows-1257') {
        include_once(SM_PATH . 'functions/decode/cp1257.php');
        $ret = charset_decode_cp1257 ($string);
    } else if ($charset == 'windows-1258') {
        include_once(SM_PATH . 'functions/decode/cp1258.php');
        $ret = charset_decode_cp1258 ($string);
    } else if ($charset == 'x-mac-roman') {
        include_once(SM_PATH . 'functions/decode/cp10000.php');
        $ret = charset_decode_cp10000 ($string);
    } else if ($charset == 'x-mac-greek') {
        include_once(SM_PATH . 'functions/decode/cp10006.php');
        $ret = charset_decode_cp10006 ($string);
    } else if ($charset == 'x-mac-cyrillic') {
        include_once(SM_PATH . 'functions/decode/cp10007.php');
        $ret = charset_decode_cp10007 ($string);
    } else if ($charset == 'x-mac-ukrainian') {
        include_once(SM_PATH . 'functions/decode/cp10017.php');
        $ret = charset_decode_cp10017 ($string);
    } else if ($charset == 'x-mac-centraleurroman') {
        include_once(SM_PATH . 'functions/decode/cp10029.php');
        $ret = charset_decode_cp10029 ($string);
    } else if ($charset == 'x-mac-icelandic') {
        include_once(SM_PATH . 'functions/decode/cp10079.php');
        $ret = charset_decode_cp10079 ($string);
    } else if ($charset == 'x-mac-turkish') {
        include_once(SM_PATH . 'functions/decode/cp10081.php');
        $ret = charset_decode_cp10081 ($string);
    } else if ($charset == 'ibm855') {
        include_once(SM_PATH . 'functions/decode/cp855.php');
        $ret = charset_decode_cp855 ($string);
    } else if ($charset == 'ibm866') {
        include_once(SM_PATH . 'functions/decode/cp866.php');
        $ret = charset_decode_cp866 ($string);
    } else if ($charset == 'iso-ir-111') {
        include_once(SM_PATH . 'functions/decode/iso-ir-111.php');
	$ret = charset_decode_iso_ir_111 ($string);
    } else if ($charset == 'tis-620') {
        include_once(SM_PATH . 'functions/decode/tis620.php');
        $ret = charset_decode_tis620 ($string);
    } else if ($charset == 'big5' and $agresive_decoding ) {
        include_once(SM_PATH . 'functions/decode/big5.php');
        $ret = charset_decode_big5 ($string);
    } else if ($charset == 'gb2312' and $agresive_decoding ) {
        include_once(SM_PATH . 'functions/decode/gb2312.php');
        $ret = charset_decode_gb2312 ($string);
    } else if ($charset == 'utf-8' && $squirrelmail_language != 'ja_JP') {
        include_once(SM_PATH . 'functions/decode/utf-8.php');
	$ret = charset_decode_utf8 ($string);
    } else {
         $ret = $string;
    }
    return( $ret );
}

/* 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");
}


/*
 * 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, $default = false) {

    static $SetupAlready = 0;
    global $use_gettext, $languages,
           $squirrelmail_language, $squirrelmail_default_language,
           $sm_notAlias;

    if ($SetupAlready) {
        return;
    }

    $SetupAlready = TRUE;
    sqgetGlobalVar('HTTP_ACCEPT_LANGUAGE',  $accept_lang, SQ_SERVER);

    if ($do_search && ! $sm_language && isset($accept_lang)) {
        $sm_language = substr($accept_lang, 0, 2);
    }
    if ((!$sm_language||$default) && isset($squirrelmail_default_language)) {
        $squirrelmail_language = $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 &&
         $sm_language != '' &&
         isset($languages[$sm_notAlias]['CHARSET']) ) {
        bindtextdomain( 'squirrelmail', SM_PATH . 'locale/' );
        textdomain( 'squirrelmail' );
	if (function_exists('bind_textdomain_codeset')) {
            if ($sm_notAlias == 'ja_JP') {
        	bind_textdomain_codeset ("squirrelmail", 'EUC-JP');
            } else {
	        bind_textdomain_codeset ("squirrelmail", $languages[$sm_notAlias]['CHARSET'] );
	    }
	}
	if (isset($languages[$sm_notAlias]['LOCALE'])){
	  $longlocale=$languages[$sm_notAlias]['LOCALE'];
	} else {
	  $longlocale=$sm_notAlias;
	}
        if ( !ini_get('safe_mode') &&
             getenv( 'LC_ALL' ) != $longlocale ) {
            putenv( "LC_ALL=$longlocale" );
            putenv( "LANG=$longlocale" );
            putenv( "LANGUAGE=$longlocale" );
        }
        setlocale(LC_ALL, $longlocale);
        $squirrelmail_language = $sm_notAlias;
        if ($squirrelmail_language == 'ja_JP') {
            header ('Content-Type: text/html; charset=EUC-JP');
            if (!function_exists('mb_internal_encoding')) {
                echo _("You need to have php4 installed with the multibyte string function enabled (using configure option --enable-mbstring).");
		// Revert to English link has to be added.
		// stop further execution in order not to get php errors on mb_internal_encoding().
		return;
            }
            if (function_exists('mb_language')) {
                mb_language('Japanese');
            }
            mb_internal_encoding('EUC-JP');
            mb_http_output('pass');
        } else {
        header( 'Content-Type: text/html; charset=' . $languages[$sm_notAlias]['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, $squirrelmail_default_language;

    $my_language = getPref($data_dir, $username, 'language');
    if (!$my_language) {
        $my_language = $squirrelmail_default_language ;
    }
    while (isset($languages[$my_language]['ALIAS'])) {
        $my_language = $languages[$my_language]['ALIAS'];
    }
    $my_charset = $languages[$my_language]['CHARSET'];
    if ($my_charset) {
        $default_charset = $my_charset;
    }
}

/* ------------------------------ main --------------------------- */

global $squirrelmail_language, $languages, $use_gettext;

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

/* This array specifies the available languages. */

$languages['bg_BG']['NAME']    = 'Bulgarian';
$languages['bg_BG']['CHARSET'] = 'windows-1251';
$languages['bg_BG']['LOCALE']  = 'bg_BG.CP1251';
$languages['bg']['ALIAS']      = 'bg_BG';

$languages['ca_ES']['NAME']    = 'Catalan';
$languages['ca_ES']['CHARSET'] = 'iso-8859-1';
$languages['ca_ES']['LOCALE']  = 'ca_ES.ISO8859-1';
$languages['ca']['ALIAS']      = 'ca_ES';

$languages['cs_CZ']['NAME']    = 'Czech';
$languages['cs_CZ']['CHARSET'] = 'iso-8859-2';
$languages['cs_CZ']['LOCALE']  = 'cs_CZ.ISO8859-2';
$languages['cs']['ALIAS']      = 'cs_CZ';

$languages['cy_GB']['NAME']    = 'Welsh';
$languages['cy_GB']['CHARSET'] = 'iso-8859-1';
$languages['cy_GB']['LOCALE']  = 'cy_GB.ISO8859-1';
$languages['cy']['ALIAS'] = 'cy_GB';

$languages['da_DK']['NAME']    = 'Danish';
$languages['da_DK']['CHARSET'] = 'iso-8859-1';
$languages['da_DK']['LOCALE']  = 'da_DK.ISO8859-1';
$languages['da']['ALIAS']      = 'da_DK';

$languages['de_DE']['NAME']    = 'Deutsch';
$languages['de_DE']['CHARSET'] = 'iso-8859-1';
$languages['de_DE']['LOCALE']  = 'de_DE.ISO8859-1';
$languages['de']['ALIAS']      = 'de_DE';

$languages['el_GR']['NAME']    = 'Greek';
$languages['el_GR']['CHARSET'] = 'iso-8859-7';
$languages['el_GR']['LOCALE']  = 'el_GR.ISO8859-7';
$languages['el']['ALIAS']      = 'el_GR';

$languages['en_GB']['NAME']    = 'British';
$languages['en_GB']['CHARSET'] = 'iso-8859-15';
$languages['en_GB']['LOCALE']  = 'en_GB.ISO-8859-15';

$languages['en_US']['NAME']    = 'English';
$languages['en_US']['CHARSET'] = 'iso-8859-1';
$languages['en_US']['LOCALE']  = 'en_US.ISO8859-1';
$languages['en']['ALIAS']      = 'en_US';

$languages['es_ES']['NAME']    = 'Spanish';
$languages['es_ES']['CHARSET'] = 'iso-8859-1';
$languages['es_ES']['LOCALE']  = 'es_ES.ISO8859-1';
$languages['es']['ALIAS']      = 'es_ES';

$languages['et_EE']['NAME']    = 'Estonian';
$languages['et_EE']['CHARSET'] = 'iso-8859-15';
$languages['et_EE']['LOCALE']  = 'et_EE.ISO8859-15';
$languages['et']['ALIAS']      = 'et_EE';

$languages['eu_ES']['NAME']    = 'Basque';
$languages['eu_ES']['CHARSET'] = 'iso-8859-1';
$languages['eu_ES']['LOCALE']  = 'eu_ES.ISO8859-1';
$languages['eu']['ALIAS']      = 'eu_ES';

$languages['fi_FI']['NAME']    = 'Finnish';
$languages['fi_FI']['CHARSET'] = 'iso-8859-1';
$languages['fi_FI']['LOCALE']  = 'fi_FI.ISO8859-1';
$languages['fi']['ALIAS']      = 'fi_FI';

$languages['fo_FO']['NAME']    = 'Faroese';
$languages['fo_FO']['CHARSET'] = 'iso-8859-1';
$languages['fo_FO']['LOCALE']  = 'fo_FO.ISO8859-1';
$languages['fo']['ALIAS']      = 'fo_FO';

$languages['fr_FR']['NAME']    = 'French';
$languages['fr_FR']['CHARSET'] = 'iso-8859-1';
$languages['fr_FR']['LOCALE']  = 'fr_FR.ISO8859-1';
$languages['fr']['ALIAS']      = 'fr_FR';

$languages['hr_HR']['NAME']    = 'Croatian';
$languages['hr_HR']['CHARSET'] = 'iso-8859-2';
$languages['hr_HR']['LOCALE']  = 'hr_HR.ISO8859-2';
$languages['hr']['ALIAS']      = 'hr_HR';

$languages['hu_HU']['NAME']    = 'Hungarian';
$languages['hu_HU']['CHARSET'] = 'iso-8859-2';
$languages['hu_HU']['LOCALE']  = 'hu_HU.ISO8859-2';
$languages['hu']['ALIAS']      = 'hu_HU';

$languages['id_ID']['NAME']    = 'Bahasa Indonesia';
$languages['id_ID']['CHARSET'] = 'iso-8859-1';
$languages['id_ID']['LOCALE']  = 'id_ID.ISO8859-1';
$languages['id']['ALIAS']      = 'id_ID';

$languages['is_IS']['NAME']    = 'Icelandic';
$languages['is_IS']['CHARSET'] = 'iso-8859-1';
$languages['is_IS']['LOCALE']  = 'is_IS.ISO8859-1';
$languages['is']['ALIAS']      = 'is_IS';

$languages['it_IT']['NAME']    = 'Italian';
$languages['it_IT']['CHARSET'] = 'iso-8859-1';
$languages['it_IT']['LOCALE']  = 'it_IT.ISO8859-1';
$languages['it']['ALIAS']      = 'it_IT';

$languages['ja_JP']['NAME']    = 'Japanese';
$languages['ja_JP']['CHARSET'] = 'iso-2022-jp';
$languages['ja_JP']['XTRA_CODE'] = 'japanese_charset_xtra';
$languages['ja']['ALIAS']      = 'ja_JP';

$languages['ko_KR']['NAME']    = 'Korean';
$languages['ko_KR']['CHARSET'] = 'euc-KR';
// Function does not provide all needed options
// $languages['ko_KR']['XTRA_CODE'] = 'korean_charset_xtra';
$languages['ko']['ALIAS']      = 'ko_KR';

$languages['lt_LT']['NAME']    = 'Lithuanian';
$languages['lt_LT']['CHARSET'] = 'utf-8';
$languages['lt_LT']['LOCALE']  = 'lt_LT.UTF-8';
$languages['lt']['ALIAS']      = 'lt_LT';

$languages['ms_MY']['NAME']    = 'Bahasa Melayu';
$languages['ms_MY']['CHARSET'] = 'iso-8859-1';
$languages['ms_MY']['LOCALE']  = 'ms_MY.ISO8859-1';
$languages['my']['ALIAS'] = 'ms_MY';

$languages['nl_NL']['NAME']    = 'Dutch';
$languages['nl_NL']['CHARSET'] = 'iso-8859-1';
$languages['nl_NL']['LOCALE']  = 'nl_NL.ISO8859-1';
$languages['nl']['ALIAS']      = 'nl_NL';

$languages['nb_NO']['NAME']    = 'Norwegian (Bokm&aring;l)';
$languages['nb_NO']['CHARSET'] = 'iso-8859-1';
$languages['nb_NO']['LOCALE']  = 'nb_NO.ISO8859-1';
$languages['nb']['ALIAS']      = 'nb_NO';

$languages['nn_NO']['NAME']    = 'Norwegian (Nynorsk)';
$languages['nn_NO']['CHARSET'] = 'iso-8859-1';
$languages['nn_NO']['LOCALE']  = 'nn_NO.ISO8859-1';

$languages['pl_PL']['NAME']    = 'Polish';
$languages['pl_PL']['CHARSET'] = 'iso-8859-2';
$languages['pl_PL']['LOCALE']  = 'pl_PL.ISO8859-2';
$languages['pl']['ALIAS']      = 'pl_PL';

$languages['pt_PT']['NAME'] = 'Portuguese (Portugal)';
$languages['pt_PT']['CHARSET'] = 'iso-8859-1';
$languages['pt_PT']['LOCALE']  = 'pt_PT.ISO8859-1';
$languages['pt']['ALIAS']      = 'pt_PT';

$languages['pt_BR']['NAME']    = 'Portuguese (Brazil)';
$languages['pt_BR']['CHARSET'] = 'iso-8859-1';
$languages['pt_BR']['LOCALE']  = 'pt_BR.ISO8859-1';

$languages['ro_RO']['NAME']    = 'Romanian';
$languages['ro_RO']['CHARSET'] = 'iso-8859-2';
$languages['ro_RO']['LOCALE']  = 'ro_RO.ISO8859-2';
$languages['ro']['ALIAS']      = 'ro_RO';

$languages['ru_RU']['NAME']    = 'Russian';
$languages['ru_RU']['CHARSET'] = 'utf-8';
$languages['ru_RU']['LOCALE']  = 'ru_RU.UTF-8';
$languages['ru']['ALIAS']      = 'ru_RU';

$languages['sk_SK']['NAME']     = 'Slovak';
$languages['sk_SK']['CHARSET']  = 'iso-8859-2';
$languages['sk_SK']['LOCALE']   = 'sk_SK.ISO8859-2';
$languages['sk']['ALIAS']       = 'sk_SK';

$languages['sl_SI']['NAME']    = 'Slovenian';
$languages['sl_SI']['CHARSET'] = 'iso-8859-2';
$languages['sl_SI']['LOCALE']  = 'sl_SI.ISO8859-2';
$languages['sl']['ALIAS']      = 'sl_SI';

$languages['sr_YU']['NAME']    = 'Serbian';
$languages['sr_YU']['CHARSET'] = 'iso-8859-2';
$languages['sr_YU']['LOCALE']  = 'sr_YU.ISO8859-2';
$languages['sr']['ALIAS']      = 'sr_YU';

$languages['sv_SE']['NAME']    = 'Swedish';
$languages['sv_SE']['CHARSET'] = 'iso-8859-1';
$languages['sv_SE']['LOCALE']  = 'sv_SE.ISO8859-1';
$languages['sv']['ALIAS']      = 'sv_SE';

$languages['th_TH']['NAME']    = 'Thai';
$languages['th_TH']['CHARSET'] = 'tis-620';
$languages['th_TH']['LOCALE']  = 'th_TH.TIS-620';
$languages['th']['ALIAS'] = 'th_TH';

$languages['tr_TR']['NAME']    = 'Turkish';
$languages['tr_TR']['CHARSET'] = 'iso-8859-9';
$languages['tr_TR']['LOCALE']  = 'tr_TR.ISO8859-9';
$languages['tr']['ALIAS']      = 'tr_TR';

$languages['zh_TW']['NAME']    = 'Chinese Trad';
$languages['zh_TW']['CHARSET'] = 'big5';
$languages['zh_TW']['LOCALE']  = 'zh_TW.BIG5';
$languages['tw']['ALIAS']      = 'zh_TW';

$languages['zh_CN']['NAME']    = 'Chinese Simp';
$languages['zh_CN']['CHARSET'] = 'gb2312';
$languages['zh_CN']['LOCALE']  = 'zh_CN.GB2312';
$languages['cn']['ALIAS']      = 'zh_CN';

/*
$languages['uk_UA']['NAME']    = 'Ukrainian';
$languages['uk_UA']['CHARSET'] = 'koi8-u';
$languages['uk']['ALIAS'] = 'uk_UA';
*/
/*
$languages['vi_VN']['NAME']    = 'Vietnamese';
$languages['vi_VN']['CHARSET'] = 'utf-8';
$languages['vi']['ALIAS'] = 'vi_VN';
*/

// Right to left languages

$languages['ar']['NAME']    = 'Arabic';
$languages['ar']['CHARSET'] = 'windows-1256';
$languages['ar']['DIR']     = 'rtl';

$languages['fa_IR']['NAME']    = 'Farsi';
$languages['fa_IR']['CHARSET'] = 'utf-8';
$languages['fa_IR']['DIR']     = 'rtl';
$languages['fa_IR']['LOCALE']  = 'fa_IR.UTF-8';
$languages['fa']['ALIAS']      = 'fa_IR';

$languages['he_IL']['NAME']    = 'Hebrew';
$languages['he_IL']['CHARSET'] = 'windows-1255';
$languages['he_IL']['DIR']     = 'rtl';
$languages['he']['ALIAS']      = 'he_IL';

/* 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_once(SM_PATH . '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;
        }
    }
}


/*
 * Japanese charset extra function
 *
 */
function japanese_charset_xtra() {
    $ret = func_get_arg(1);  /* default return value */
    if (function_exists('mb_detect_encoding')) {
        switch (func_get_arg(0)) { /* action */
        case 'decode':
            if (strpos($ret, chr(27)) !== FALSE) {
                $ret = mb_convert_kana(mb_convert_encoding($ret, 'EUC-JP', 'JIS'), "KV");
            } else {
                $detect_encoding = strtolower(@mb_detect_encoding($ret));
            if ($detect_encoding == 'jis' ||
                $detect_encoding == 'sjis' ||
                $detect_encoding == 'utf-8') {
                
                $ret = mb_convert_kana(mb_convert_encoding($ret, 'EUC-JP', $detect_encoding), "KV");
            }
            }
            break;
        case 'encode':
            $detect_encoding = strtolower(@mb_detect_encoding($ret));
            if ($detect_encoding == 'euc-jp' ||
                $detect_encoding == 'sjis' ||
                $detect_encoding == 'utf-8') {
                
                $ret = mb_convert_encoding(mb_convert_kana($ret, "KV"), 'JIS', $detect_encoding);
            }
            break;
        case 'strimwidth':
            $width = func_get_arg(2);
            $ret = mb_strimwidth($ret, 0, $width, '...'); 
            break;
        case 'encodeheader':
            $result = '';
            $ret = mb_convert_kana($ret, "KV");
            if (strlen($ret) > 0) {
                $tmpstr = mb_substr($ret, 0, 1);
                $prevcsize = strlen($tmpstr);
                for ($i = 1; $i < mb_strlen($ret); $i++) {
                    $tmp = mb_substr($ret, $i, 1);
                    if (strlen($tmp) == $prevcsize) {
                        $tmpstr .= $tmp;
                    } else {
                        if ($prevcsize == 1) {
                            $result .= $tmpstr;
                        } else {
                            $result .= str_replace(' ', '', 
                                                   mb_encode_mimeheader($tmpstr,'iso-2022-jp','B',''));
                        }
                        $tmpstr = $tmp;
                        $prevcsize = strlen($tmp);
                    }
                }
                if (strlen($tmpstr)) {
                    if (strlen(mb_substr($tmpstr, 0, 1)) == 1)
                        $result .= $tmpstr;
                    else
                        $result .= str_replace(' ', '',
                                               mb_encode_mimeheader($tmpstr,'iso-2022-jp','B',''));
                }
            }
            $ret = $result;
            break;
        case 'decodeheader':
            if (eregi('=\\?([^?]+)\\?(q|b)\\?([^?]+)\\?=', $ret)) {
                $ret = @mb_decode_mimeheader($ret);
            } elseif (strpos($ret, chr(27)) !== FALSE) {
                $ret = mb_convert_kana(mb_convert_encoding($ret, 'EUC-JP', 'JIS'), "KV");
            }
            break;
        case 'downloadfilename':
            $useragent = func_get_arg(2);
            if (strstr($useragent, 'Windows') !== false ||
                strstr($useragent, 'Mac_') !== false) {
                $ret = @mb_convert_encoding($ret, 'SJIS', 'AUTO');
            } else {
                $ret = @mb_convert_encoding($ret, 'EUC-JP', 'AUTO');
}
            break;
        case 'wordwrap':
            $no_begin = "\x21\x25\x29\x2c\x2e\x3a\x3b\x3f\x5d\x7d\xa1\xf1\xa1\xeb\xa1" .
                "\xc7\xa1\xc9\xa2\xf3\xa1\xec\xa1\xed\xa1\xee\xa1\xa2\xa1\xa3\xa1\xb9" .
                "\xa1\xd3\xa1\xd5\xa1\xd7\xa1\xd9\xa1\xdb\xa1\xcd\xa4\xa1\xa4\xa3\xa4" .
                "\xa5\xa4\xa7\xa4\xa9\xa4\xc3\xa4\xe3\xa4\xe5\xa4\xe7\xa4\xee\xa1\xab" .
                "\xa1\xac\xa1\xb5\xa1\xb6\xa5\xa1\xa5\xa3\xa5\xa5\xa5\xa7\xa5\xa9\xa5" .
                "\xc3\xa5\xe3\xa5\xe5\xa5\xe7\xa5\xee\xa5\xf5\xa5\xf6\xa1\xa6\xa1\xbc" .
                "\xa1\xb3\xa1\xb4\xa1\xaa\xa1\xf3\xa1\xcb\xa1\xa4\xa1\xa5\xa1\xa7\xa1" .
                "\xa8\xa1\xa9\xa1\xcf\xa1\xd1";
            $no_end = "\x5c\x24\x28\x5b\x7b\xa1\xf2\x5c\xa1\xc6\xa1\xc8\xa1\xd2\xa1" .
                "\xd4\xa1\xd6\xa1\xd8\xa1\xda\xa1\xcc\xa1\xf0\xa1\xca\xa1\xce\xa1\xd0\xa1\xef";
            $wrap = func_get_arg(2);
            
            if (strlen($ret) >= $wrap && 
                substr($ret, 0, 1) != '>' &&
                strpos($ret, 'http://') === FALSE &&
                strpos($ret, 'https://') === FALSE &&
                strpos($ret, 'ftp://') === FALSE) {
                
                $ret = mb_convert_kana($ret, "KV");

                $line_new = '';
                $ptr = 0;
                
                while ($ptr < strlen($ret) - 1) {
                    $l = mb_strcut($ret, $ptr, $wrap);
                    $ptr += strlen($l);
                    $tmp = $l;
                    
                    $l = mb_strcut($ret, $ptr, 2);
                    while (strlen($l) != 0 && mb_strpos($no_begin, $l) !== FALSE ) {
                        $tmp .= $l;
                        $ptr += strlen($l);
                        $l = mb_strcut($ret, $ptr, 1);
                    }
                    $line_new .= $tmp;
                    if ($ptr < strlen($ret) - 1)
                        $line_new .= "\n";
                }
                $ret = $line_new;
            }
            break;
        case 'utf7-imap_encode':
            $ret = mb_convert_encoding($ret, 'UTF7-IMAP', 'EUC-JP');
            break;
        case 'utf7-imap_decode':
            $ret = mb_convert_encoding($ret, 'EUC-JP', 'UTF7-IMAP');
            break;
        }
    }
    return $ret;
}


/*
 * Korean charset extra function
 * Hangul(Korean Character) Attached File Name Fix.
 */
function korean_charset_xtra() {
    
    $ret = func_get_arg(1);  /* default return value */
    if (func_get_arg(0) == 'downloadfilename') { /* action */
        $ret = str_replace("\x0D\x0A", '', $ret);  /* Hanmail's CR/LF Clear */
        for ($i=0;$i<strlen($ret);$i++) {
            if ($ret[$i] >= "\xA1" && $ret[$i] <= "\xFE") {   /* 0xA1 - 0XFE are Valid */
                $i++;
                continue;
            } else if (($ret[$i] >= 'a' && $ret[$i] <= 'z') || /* From Original ereg_replace in download.php */
                       ($ret[$i] >= 'A' && $ret[$i] <= 'Z') ||
                       ($ret[$i] == '.') || ($ret[$i] == '-')) {
                continue;
            } else {
                $ret[$i] = '_';
            }
        }

    }

    return $ret;
}

?>
