Add locale support ford deprecated messages

experimental/locale/locale.go

@@ -0,0 +1,30 @@
+package locale
+
+var (
+	localeRegistry = make(map[string]*Locale)
+	current        = defaultLocal
+)
+
+type Locale struct {
+	// deprecated messages for graphical clients
+	DeprecatedMessage       string
+	DeprecatedMessageNoLink string
+}
+
+var defaultLocal = &Locale{
+	DeprecatedMessage:       "%s is deprecated in sing-box %s and will be removed in sing-box %s please checkout documentation for migration.",
+	DeprecatedMessageNoLink: "%s is deprecated in sing-box %s and will be removed in sing-box %s.",
+}
+
+func Current() *Locale {
+	return current
+}
+
+func Set(localeId string) bool {
+	locale, loaded := localeRegistry[localeId]
+	if !loaded {
+		return false
+	}
+	current = locale
+	return true
+}

experimental/locale/locale_zh_CN.go

@@ -0,0 +1,10 @@
+package locale
+
+var warningMessageForEndUsers = "\n\n如果您不明白此消息意味着什么：您的配置文件已过时，且将很快不可用。请联系您的配置提供者以更新配置。"
+
+func init() {
+	localeRegistry["zh_CN"] = &Locale{
+		DeprecatedMessage:       "%s 已在 sing-box %s 中被弃用，且将在 sing-box %s 中被移除，请参阅迁移指南。" + warningMessageForEndUsers,
+		DeprecatedMessageNoLink: "%s 已在 sing-box %s 中被弃用，且将在 sing-box %s 中被移除。" + warningMessageForEndUsers,
+	}
+}