Template:Fallback

Template documentation

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This template was imported from commons:Template:Fallback without the here unusable documentation.

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Use localised subpage for the user language with fallback to {{CONTENTLANGUAGE}}

Template parameters[Edit template data]

Parameter		Description	Type	Status
page	1	Template name	Page name	required
lang	2	override user language on localised page Default {{int:Lang}}	String	optional

The above documentation is transcluded from Template:Fallback/doc. (edit | history)
Editors can experiment in this template’s sandbox (create | mirror) and testcases (create) pages.
Please add categories to the /doc subpage. Subpages of this template.

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
		return ''
	elseif arg then
		return arg
	else
		return nil
	end
end

function p.langSwitch(frame)
	local args = frame.args
	for i, j in pairs(args) do
		i = mw.ustring.gsub( str, "-", "")
	end
	lang = args.lang
	if args[lang] then
		return returnarg(args[lang])
	end
	if langlist[lang] then
		tested = {} -- keep track of tested languages to avoid loops
		for i, j in pairs(langlist[lang]) do
			if args[langlist[lang]] then
				return returnarg(args[langlist[lang]])
			end
		end
	end
	if args.default then
		return returnarg(args.default)
	end
	if args.en then 
		return returnarg(args.en)
	end
	return 
end 
return p