Module:Category more if exists explained

--v1.0local p = local yesno = require("Module:yesno")

function p.main(frame) local rawpages = local nvalid = 0 local namespace = frame.args.ns for i, v in ipairs(frame:getParent.args) do if (v ~= nil) then local thisArg = mw.text.trim(v) if (thisArg ~= "") then local title = mw.title.new(thisArg, namespace) if title ~= nil and title.exists then table.insert(rawpages, title.fullText) nvalid = nvalid + 1 end end end end if (nvalid

0) then if yesno(frame.args.warning) then if namespace

nil then namespace = "page" elseif namespace:sub(-1)

"y" then namespace = namespace:sub(0, -2) .. "ie" end mw.addWarning(string.format("%s — no output, because none of the %ss currently exist.", frame:getParent:getTitle,namespace)) end return "" end local mHatnote = require("Module:Hatnote") local mHatList = require("Module:Hatnote list") local options = local hatnoteText = string.format("For more information, see %s", mHatList.andList(rawpages, true)) return mHatnote._hatnote(hatnoteText, options)end

return p