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// Copyright 2013 ChaiShushan <chaishushan{AT}gmail.com>. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gettext
import (
"os"
"strings"
)
func getDefaultLanguage() string {
if v := os.Getenv("LC_MESSAGES"); v != "" {
return simplifiedLanguage(v)
}
if v := os.Getenv("LANG"); v != "" {
return simplifiedLanguage(v)
}
return "default"
}
func simplifiedLanguage(lang string) string {
// en_US/en_US.UTF-8/zh_CN/zh_TW/el_GR@euro/...
if idx := strings.Index(lang, ":"); idx != -1 {
lang = lang[:idx]
}
if idx := strings.Index(lang, "@"); idx != -1 {
lang = lang[:idx]
}
if idx := strings.Index(lang, "."); idx != -1 {
lang = lang[:idx]
}
return strings.TrimSpace(lang)
}
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