lang_unix.go

//go:build linux || darwin

package gxcommon

import (
	"os"

	"golang.org/x/text/language"
)

// --------------------------------------------------------------------------
//
//	Gurux Ltd
//
// Filename:        $HeadURL$
//
// Version:         $Revision$,
//
//	$Date$
//	$Author$
//
// # Copyright (c) Gurux Ltd
//
// ---------------------------------------------------------------------------
//
//	DESCRIPTION
//
// This file is a part of Gurux Device Framework.
//
// Gurux Device Framework is Open Source software; you can redistribute it
// and/or modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; version 2 of the License.
// Gurux Device Framework is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU General Public License for more details.
//
// More information of Gurux products: https://www.gurux.org
//
// This code is licensed under the GNU General Public License v2.
// Full text may be retrieved at http://www.gnu.org/licenses/gpl-2.0.txt
// ---------------------------------------------------------------------------

// CurrentLanguage returns the user's preferred UI language.
func CurrentLanguage() language.Tag {
	lang := os.Getenv("LC_ALL")
	if lang == "" {
		lang = os.Getenv("LC_MESSAGES")
	}
	if lang == "" {
		lang = os.Getenv("LANG")
	}
	tag, err := language.Parse(lang)
	if err != nil {
		return language.AmericanEnglish
	}
	return tag
}