Module:Main if exists

-- v1.0 local 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 mLabelledList = require('Module:Labelled list hatnote') local pages = mLabelledList._labelledList(rawpages, "Main", "") return pages end

return p