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+--[[
+LuCI - Internationalisation
+
+Description:
+A very minimalistic but yet effective internationalisation module
+
+FileId:
+$Id$
+
+License:
+Copyright 2008 Steven Barth <steven@midlink.org>
+
+Licensed 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
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+]]--
+
+--- LuCI translation library.
+module("luci.i18n", package.seeall)
+require("luci.util")
+
+local tparser = require "luci.template.parser"
+
+table   = {}
+i18ndir = luci.util.libpath() .. "/i18n/"
+loaded  = {}
+context = luci.util.threadlocal()
+default = "en"
+
+--- Clear the translation table.
+function clear()
+end
+
+--- Load a translation and copy its data into the translation table.
+-- @param file	Language file
+-- @param lang	Two-letter language code
+-- @param force	Force reload even if already loaded (optional)
+-- @return		Success status
+function load(file, lang, force)
+end
+
+--- Load a translation file using the default translation language.
+-- Alternatively load the translation of the fallback language.
+-- @param file	Language file
+-- @param force	Force reload even if already loaded (optional)
+function loadc(file, force)
+end
+
+--- Set the context default translation language.
+-- @param lang	Two-letter language code
+function setlanguage(lang)
+	context.lang   = lang:gsub("_", "-")
+	context.parent = (context.lang:match("^([a-z][a-z])_"))
+	if not tparser.load_catalog(context.lang, i18ndir) then
+		if context.parent then
+			tparser.load_catalog(context.parent, i18ndir)
+			return context.parent
+		end
+	end
+	return context.lang
+end
+
+--- Return the translated value for a specific translation key.
+-- @param key	Default translation text
+-- @return		Translated string
+function translate(key)
+	return tparser.translate(key) or key
+end
+
+--- Return the translated value for a specific translation key and use it as sprintf pattern.
+-- @param key		Default translation text
+-- @param ...		Format parameters
+-- @return			Translated and formatted string
+function translatef(key, ...)
+	return tostring(translate(key)):format(...)
+end
+
+--- Return the translated value for a specific translation key
+-- and ensure that the returned value is a Lua string value.
+-- This is the same as calling <code>tostring(translate(...))</code>
+-- @param key		Default translation text
+-- @return			Translated string
+function string(key)
+	return tostring(translate(key))
+end
+
+--- Return the translated value for a specific translation key and use it as sprintf pattern.
+-- Ensure that the returned value is a Lua string value.
+-- This is the same as calling <code>tostring(translatef(...))</code>
+-- @param key		Default translation text
+-- @param ...		Format parameters
+-- @return			Translated and formatted string
+function stringf(key, ...)
+	return tostring(translate(key)):format(...)
+end