luci-base: remove unused i18n functions

Drop load(), loadc(), string() and stringf() from the luci.i18n class since
these functions are either no longer unused or were never used to begin with.

Also slightly rework the module to only use local symbols and unify the
module require style.

Signed-off-by: Jo-Philipp Wich <jo@mein.io>

2 files changed, 6 insertions, 83 deletions

diff --git a/modules/luci-base/luasrc/i18n.lua b/modules/luci-base/luasrc/i18n.lua
index 42de832f7..323912b65 100644
--- a/modules/luci-base/luasrc/i18n.lua
+++ b/modules/luci-base/luasrc/i18n.lua
@@ -1,26 +1,16 @@
 -- Copyright 2008 Steven Barth <steven@midlink.org>
 -- Licensed to the public under the Apache License 2.0.
 
-module("luci.i18n", package.seeall)
-require("luci.util")
+local tparser  = require "luci.template.parser"
+local util     = require "luci.util"
+local tostring = tostring
 
-local tparser = require "luci.template.parser"
+module "luci.i18n"
 
-table   = {}
-i18ndir = luci.util.libpath() .. "/i18n/"
-loaded  = {}
-context = luci.util.threadlocal()
+i18ndir = util.libpath() .. "/i18n/"
+context = util.threadlocal()
 default = "en"
 
-function clear()
-end
-
-function load(file, lang, force)
-end
-
--- Alternatively load the translation of the fallback language.
-function loadc(file, force)
-end
 
 function setlanguage(lang)
 	local code, subcode = lang:match("^([A-Za-z][A-Za-z])[%-_]([A-Za-z][A-Za-z])$")
@@ -58,18 +48,6 @@ function translatef(key, ...)
 	return tostring(translate(key)):format(...)
 end
 
--- and ensure that the returned value is a Lua string value.
--- This is the same as calling <code>tostring(translate(...))</code>
-function string(key)
-	return tostring(translate(key))
-end
-
--- Ensure that the returned value is a Lua string value.
--- This is the same as calling <code>tostring(translatef(...))</code>
-function stringf(key, ...)
-	return tostring(translate(key)):format(...)
-end
-
 function dump()
 	local rv = {}
 	tparser.get_translations(function(k, v) rv[k] = v end)
diff --git a/modules/luci-base/luasrc/i18n.luadoc b/modules/luci-base/luasrc/i18n.luadoc
index df6e38e5d..b76c29856 100644
--- a/modules/luci-base/luasrc/i18n.luadoc
+++ b/modules/luci-base/luasrc/i18n.luadoc
@@ -4,35 +4,6 @@ LuCI translation library.
 module "luci.i18n"
 
 ---[[
-Clear the translation table.
-
-@class function
-@name clear
-]]
-
----[[
-Load a translation and copy its data into the translation table.
-
-@class function
-@name load
-@param file	Language file
-@param lang	Two-letter language code
-@param force	Force reload even if already loaded (optional)
-@return		Success status
-]]
-
----[[
-Load a translation file using the default translation language.
-
-Alternatively load the translation of the fallback language.
-
-@class function
-@name loadc
-@param file	Language file
-@param force	Force reload even if already loaded (optional)
-]]
-
----[[
 Set the context default translation language.
 
 @class function
@@ -61,32 +32,6 @@ Return the translated value for a specific translation key and use it as sprintf
 ]]
 
 ---[[
-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>
-
-@class function
-@name string
-@param key		Default translation text
-@return			Translated string
-]]
-
----[[
-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>
-
-@class function
-@name stringf
-@param key		Default translation text
-@param ...		Format parameters
-@return			Translated and formatted string
-]]
-
----[[
 Return all currently loaded translation strings as a key-value table. The key is the
 hexadecimal representation of the translation key while the value is the translated
 text content.