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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <stdlib.h> // for getenv()
#include <stdio.h>
#ifdef MACOSX
#include <osl/process.h>
#include <rtl/locale.h>
#include <rtl/ustring.hxx>
#else // MACOSX
#include <rtl/string.hxx>
#endif // MACOSX
#include <rtl/instance.hxx>
#include "i18nlangtag/languagetag.hxx"
#include "i18nlangtag/mslangid.hxx"
// =======================================================================
static LanguageType nImplSystemLanguage = LANGUAGE_DONTKNOW;
static LanguageType nImplSystemUILanguage = LANGUAGE_DONTKNOW;
// -----------------------------------------------------------------------
// Get locale of category LC_CTYPE of environment variables
static const sal_Char* getLangFromEnvironment()
{
static const sal_Char* pFallback = "C";
const sal_Char *pLang = NULL;
pLang = getenv ( "LC_ALL" );
if (! pLang || pLang[0] == 0)
pLang = getenv ( "LC_CTYPE" );
if (! pLang || pLang[0] == 0)
pLang = getenv( "LANG" );
if (! pLang || pLang[0] == 0)
pLang = pFallback;
return pLang;
}
// -----------------------------------------------------------------------
// Get locale of category LC_MESSAGES of environment variables
static const sal_Char* getUILangFromEnvironment()
{
static const sal_Char* pFallback = "C";
const sal_Char *pLang = NULL;
pLang = getenv ( "LANGUAGE" ); // respect the GNU extension
if (! pLang || pLang[0] == 0)
pLang = getenv ( "LC_ALL" );
if (! pLang || pLang[0] == 0)
pLang = getenv ( "LC_MESSAGES" );
if (! pLang || pLang[0] == 0)
pLang = getenv( "LANG" );
if (! pLang || pLang[0] == 0)
pLang = pFallback;
return pLang;
}
// -----------------------------------------------------------------------
typedef const sal_Char * (*getLangFromEnv)();
static void getPlatformSystemLanguageImpl( LanguageType& rSystemLanguage,
getLangFromEnv pGetLangFromEnv )
{
/* get the language from the user environment */
LanguageType nLang = rSystemLanguage;
if ( nLang == LANGUAGE_DONTKNOW )
{
::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex());
nLang = rSystemLanguage;
if ( nLang == LANGUAGE_DONTKNOW )
{
#ifdef MACOSX
rtl_Locale *procLocale;
(void) pGetLangFromEnv; /* unused */
if ( osl_getProcessLocale(&procLocale) == osl_Process_E_None )
{
nLang = LanguageTag( *procLocale ).getLanguageType();
OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
rSystemLanguage = nLang;
#ifdef DEBUG
if ( rSystemLanguage == LANGUAGE_DONTKNOW )
fprintf( stderr, "intnunx.cxx: failed to convert osl_getProcessLocale() language to system language.\n" );
#endif
}
#else /* MACOSX */
rtl::OString aUnxLang( (pGetLangFromEnv)() );
nLang = MsLangId::convertUnxByteStringToLanguage( aUnxLang );
OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
rSystemLanguage = nLang;
#endif /* MACOSX */
}
else {
OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
}
}
}
// -----------------------------------------------------------------------
LanguageType MsLangId::getPlatformSystemLanguage()
{
getPlatformSystemLanguageImpl( nImplSystemLanguage, &getLangFromEnvironment);
return nImplSystemLanguage;
}
// -----------------------------------------------------------------------
LanguageType MsLangId::getPlatformSystemUILanguage()
{
getPlatformSystemLanguageImpl( nImplSystemUILanguage, &getUILangFromEnvironment);
return nImplSystemUILanguage;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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