Module:Flagg

local p = {}

function p.main(frame)

--Get input arguments local args = require('Module:Arguments').getArgs(frame,{valueFunc =		function(key,value)			if value then				value = mw.text.trim(value)				--Change empty string to nil for all args except 'image' and 'border'				if key=="image" or key=="border" or value~="" then					return value				end			end			return nil		end	})

--Call main function return p.luaMain(frame,args)

end

function p.luaMain(frame,args)

local function emp2nil(x) if x=="" then return nil else return x end end local function space2emp(x) if string.find(x,"^%s*$") then return "" else return x end end local function nopx(x) if x~=nil and (string.find(x,"^%d+$") or string.find(x,"^%d+px$")) then return string.gsub(x,"^(.*)px","%1") else return nil end end

--Country & mode parameters local mode = string.lower(args[1] or "usc") local mi = string.sub(mode,1,1) local ms = string.sub(mode,2,2) local mn = string.sub(mode,3,3) local me = string.sub(mode,4,-1)

local country = args[2] or "" local avar = args["avar"] or args["altvar"] local clink = args["clink"] or args["link"]

--Get country data & altvar data local data, alink, amap, asuf if avar then local age = args["age"] or "" local aalias amap, aalias = require("Module:Flagg/Altvar data").alttable(age) avar = string.gsub(string.lower(avar or ""),"[ \-]","") avar = aalias[avar] or avar if not amap[avar] then error("Unknown avar") end local apar = {altvar=amap[avar].altvar;mw=amap[avar].mw;age=amap[avar].age;variant=args["variant"] or args[3]} data = require("Module:CountryData").gettable(frame,country,apar) asuf = amap[avar].altlink alink = data["link alias-"..amap[avar].altvar] or (clink or data["shortname alias"] or data.alias or country).." "..asuf else data = (args["nodata"] and {}) or require("Module:CountryData").gettable(frame,country,{variant=args["variant"] or args[3]}) avar = "" amap = {[""]={altvar=""}} end

--Name and link parameters clink = clink or data.alias or country

local pref = args["pref"] local suff = args["suff"] or asuf if not pref and not suff then --Default prefix pref = "Flag of" end local yn_map = {[""]=0; ["0"]=0; ["no"]=0; ["n"]=0; ["1"]=1; ["yes"]=1; ["y"]=1} local fthe = (args["pthe"] and yn_map[args["pthe"]]~=0) or (args["the"] and yn_map[args["the"]]~=0) local nthe = (args["nthe"] and yn_map[args["nthe"]]~=0) or (args["the"] and yn_map[args["the"]]~=0) fthe = fthe and (pref and "t" or "T").."he " or "" nthe = nthe and (pref and "t" or "T").."he " or "" local flink = args["plink"] or args["flink"] or alink or clink=="" and "" or space2emp((pref or "").." ")..fthe..clink..space2emp(" "..(suff or "")) local fsec = args["psection"] or args["section"] local csec = args["csection"] or args["section"] fsec = fsec and "#"..fsec or "" csec = csec and "#"..csec or ""

if string.find(me,"f") then if mw.title.new( flink ).exists == false then flink = clink end end

local name = args["name"] if not name then local cname = string.find(me,"e") and (data["name alias-"..amap[avar].altvar] or data["shortname alias"] or data.alias) or country if mn == "f" then name = cname=="" and "" or space2emp((pref or "").." ")..nthe..cname..space2emp(" "..(suff or "")) else name = cname end end

--Image parameters local pimage = args["image"] local placeholder = "Flag placeholder.svg" local variant = args["variant"] or args[3] or "" local image_map = {[""]=placeholder; ["none"]=placeholder; ["blank"]=placeholder} if pimage then --Remove namespace pimage = string.gsub(pimage,"^[Ff][Ii][Ll][Ee]:","") pimage = string.gsub(pimage,"^[Ii][Mm][Aa][Gg][Ee]:","") end local iname = image_map[pimage] or pimage

local size = args["size"] or args["sz"] local size_map = {xs="12x8px"; s="17x11px"; m="23x15px"; l="32x21px"; xl="46x30px"} if size==nil or string.find(size,"^%d*x?%d+px$") then --valid EIS size (..px, x..px or ..x..px) or unset elseif string.find(size,"^%d*x?%d+$") then --EIS size without "px" suffix size=size.."px" else --size from map, or invalid value size = size_map[size] or nil end local border = args["border"]

if iname then size = size or "23x15px" if yn_map[border]==0 then border = "" else border = "|border" end else iname = data["flag alias-"..amap[avar].altvar.."-"..variant] or data["flag alias-"..variant] or data["flag alias-"..amap[avar].altvar] or data["flag alias"] or placeholder size = size or emp2nil(data.size) or "23x15px" if border then if yn_map[border]==0 then border = "" else border = "|border" end else local autoborder = data["border-"..variant] or data["border-"..amap[avar].altvar] or data.border if autoborder and autoborder~="border" then border = "" else border = "|border" end end end

local am = "" if args["alt"] or string.find(me,"a") then am = args["alt"] or args["name"] or country am = am.."|"..am	end

--Build display name local text = args["text"] if not text then if mn=="x" then --no text text = "" elseif mn=="p" or mn=="f" then --prefix/suffix link text = flink=="" and name or ""..name.."" elseif mn=="b" then --both prefix/suffix and normal country link local preflink = pref and (flink=="" and pref.." " or ""..pref.." ") or "" local sufflink = suff and (flink=="" and " "..suff or " "..suff.."") or "" local namelink = (name=="" and "" or nthe)..(clink=="" and name or ""..name.."") text = preflink..namelink..sufflink elseif mn=="d" then --data template local title = mw.title.new("Template:Country data "..country) --check if redirect if title.isRedirect then text = "["..title:fullUrl("redirect=no").." "..name.."] " else text = ""..name.."" end elseif mn=="u" then --unlinked text = name else --country link (default) text = clink=="" and name or ""..name.."" end end

--Build image local ilink = args["ilink"] if not ilink then if mi=="x" or (iname==placeholder and pimage~=placeholder) then --no image/invisible image iname = placeholder border = "" ilink = "|link=" am = "" elseif mi=="i" then --image page link ilink = "" elseif mi=="c" then --country link ilink = "|link="..clink..(clink=="" and "" or csec) elseif mi=="p" or mi=="f" then --prefix/suffix link ilink = "|link="..flink..(flink=="" and "" or fsec) elseif mi=="d" then --data template local title = mw.title.new("Template:Country data "..country) --check if redirect if title.isRedirect then ilink = "|link="..title:fullUrl("redirect=no") else ilink = "|link="..title.fullText end else --unlinked (default) ilink = "|link=" end end if am == "" and string.find(me,"l") then am = mw.ustring.sub(ilink,7,-1) end local image = ""

if iname==placeholder then if require('Module:yesno')(args["noredlink"]) == false then iname = '' image = "Template:Country data "..country.."" end if (args["missingcategory"] or ) ~=  then image = image..args["missingcategory"] end if string.find(me,"b") then text = '' end end

--Combine image and name with separator local align = args["align"] or args["al"] local nalign = args["nalign"] or args["nal"] local align_map = {left="left", l="left", center="center", centre="center", c="center", middle="center", m="center", right="right", r="right"} local out if string.find(me,"r") then --image right of name if (ms=="x" and mi=="x") or (string.find(me,"o") and iname==placeholder and pimage~=placeholder) then --name only out = text elseif ms=="x" then --no separator out = text..""..image.." " elseif ms=="n" then --non-breaking space out = text.." "..image.." " elseif ms=="l" then --line break out = text.." "..image.." " elseif ms=="t" then --table cell out = "style=\"text-align:"..(align_map[nalign] or "left").."\"|"..text.."||style=\"text-align:"..(align_map[align] or "center")..";\"|"..image.." " else --fixed-width span box (default) local width = args["width"] or args["w"] or require("Module:Flaglist").luawidth(size) out = text.." "..image.." " end else --image left of name if (ms=="x" and mi=="x") or (string.find(me,"o") and iname==placeholder and pimage~=placeholder) then --name only out = text elseif ms=="x" then --no separator out = ""..image.." "..text elseif ms=="n" then --non-breaking space out = ""..image.." "..text elseif ms=="l" then --line break out = ""..image.." "..text elseif ms=="t" then --table cell out = "style=\"text-align:"..(align_map[align] or "center")..";\"|"..image.." ||style=\"text-align:"..(align_map[nalign] or "left").."\"|"..text else --fixed-width span box (default) local width = nopx(args["width"] or args["w"]) or require("Module:Flaglist").luawidth(size) out = ""..image.." "..text end end if string.find(me,"w") then --avoid wrapping out = ""..out.." " end

--Tracking categories local cat = "" if pimage and not image_map[pimage] and country~="" and data["flag alias"] and not args.demo then cat = "" end

return out..cat

end

return p