Module:Fallback: Difference between revisions

← Older edit

@@ Line 1: / Line 1: @@
+--[[
+  __  __           _       _        _____     _ _ _                _
+ |  \/  | ___   __| |_   _| | ___ _|  ___|_ _| | | |__   __ _  ___| | __
+ | |\/| |/ _ \ / _` | | | | |/ _ (_) |_ / _` | | | '_ \ / _` |/ __| |/ /
+ | |  | | (_) | (_| | |_| | |  __/_|  _| (_| | | | |_) | (_| | (__|   <
+ |_|  |_|\___/ \__,_|\__,_|_|\___(_)_|  \__,_|_|_|_.__/ \__,_|\___|_|\_\
+ Authors and maintainers:
+* User:Zolo   - original version
+* User:Jarekt
+]]
 local p = {}
-local langlist = {
- af = {'nl'},
- als = {'de'},
- arz = {'ar'},
- bar = {'de'},
- bexold = {'betarask'},
- br = {'fr'},
- ckb = {'fa'},
- co = {'fr'},
- crhcyrl = {'crh'},
- crhlatn = {'crh'},
- csb = {'pl'},
- deat = {'de'},
- dech = {'de'},
- deformal = {'de'},
- engb = {'en'},
- frp = {'fr'},
- frr = {'de'},
- fy = {'nl'},
- glk = {'fa'},
- hifdeva = {'hif'},
- hilatn = {'hif'},
- ht = {'fr'},
- ikecans = {'ik'},
- kkarab = {'kk'},
- kkcn = {'kk'},
- kkcyrl = {'kk'},
- kkkz = {'kk'},
- kklatn = {'kk'},
- kktr = {'kk'},
- ksh = {'de'},
- kuarab = {'ku'},
- kulatn = {'ku'},
- li = {'nl'},
- mg = {'fr'},
- mzn = {'fa'},
- nds = {'ndsnl', 'de'},
- ndsnl = {'nds', 'nl'},
- nlinformal = {'nl'},
- pdt = {'nds', 'de'},
- ptbr = {'pt'},
- ruggrek = {'ruq'},
- rulatn = {'ruq'},
- ruqcyrl = {'ruq'},
- srec = {'sr'},
- srel = {'sr'},
- szl = {'pl'},
- tgcyrl = {'tg'},
- tglatn = {'tg'},
- ttcyrl = {'tt'},
- ttlatn = {'tt'},
- ty = {'fr'},
- vec = {'it'},
- vls = {'nl'},
- wa = {'fr'},
- zea = {'nl'},
- zh = {'zhhans'},
- zhcn = {'zhhans'},
- zhhans = {'zhcn', 'zh'},
- zhhant = {'zh'},
- zhhk = {'zhhant'},
- zhmo = {'zhhant'},
- zhmy = {'zhhans'},
- zhsg = {'zhhans'},
- zhtw = {'zhhant'}
-}
-function returnarg(arg)
+--[[
-	if arg == '~' then
+translatelua
-		return ''
-	elseif arg then
+Allows easy translation or internalization of pages in Lua.
-		return arg
-	else
+Example Usage from a template:
-		return nil
+{{#invoke: fallback|translatelua| i18n/oil on canvas|lang={{{lang|}}}}}
+Parameters:
+  frame.args.1 - name of translation module
+frame.args.2 - field name of the structure in Module:[frame.args.1] to use
+  frame.args.lang - desired language (often user's native language)
+ Error Handling:
+]]
+function p.translatelua(frame)
+	local lang = mw.text.trim(frame.args.lang)
+	local page = require('Module:' .. mw.text.trim(frame.args[1])) -- page should only contain a simple of translations
+	if not lang or lang == '' then
+		lang = frame:callParserFunction("int", "lang")
+	end
+	if frame.args[2] then
+		page = page[mw.text.trim(frame.args[2])]
+	end
+	local langList = mw.language.getFallbacksFor(lang)
+	table.insert(langList,1,lang)
+	for _,language in ipairs(langList) do
+		if page[language] then
+			return page[language]
+		end
 	end
 end
-function p.langSwitch(frame)
+--[[
-	local args = frame.args
+fblist
-	for i, j in pairs(args) do
-		i = mw.ustring.gsub( str, "-", "")
+Similar to  mw.language.getFallbacksFor(lang) but uses Commons old fallback chain
+Parameters:
+  lang - desired language (often user's native language)
+ Error Handling:
+]]
+function p.fblist(lang) -- list the full fallback chain from a language to en
+	local fbtable = p.fallbackloop{lang:lower()}
+	table.insert(fbtable, 'default')
+	table.insert(fbtable, 'en')
+	return fbtable
+end
+local function _inArray(x, t)
+	for i, v in ipairs(t) do
+		if v == x then return i end
 	end
-	lang = args.lang
+	return -1
-	if args[lang] then
+end
-		return returnarg(args[lang])
-	end
+function p.fallbackloop(fbtable) --list of fallback languages in string format (more convenient than tables)
-	if langlist[lang] then
+	local langlist = require('Module:Fallbacklist')
-		tested = {} -- keep track of tested languages to avoid loops
+	local changes = false
-		for i, j in pairs(langlist[lang]) do
+	for i, j in ipairs(fbtable) do
-			if args[langlist[lang]] then
+		local seq = langlist[j]
-				return returnarg(args[langlist[lang]])
+		if seq then
+			for k, l in ipairs(seq) do
+				if _inArray(l, fbtable) == -1 then
+					table.insert(fbtable, l)
+					changes = true
+				end
 			end
 		end
 	end
-	if args.default then
+	if changes then
-		return returnarg(args.default)
+		return p.fallbackloop(fbtable)
 	end
-	if args.en then
+	return fbtable
-		return returnarg(args.en)
+end
-	end
-	return
-end
 return p

Admin (talk | contribs)