Module:Hidden ping

local p = {}

local function makeError(msg, frame) -- Show error only in preview if (frame:preprocess( "" ) ~= "") then return '' end msg =' Error in Template:Hidden ping: ' .. msg return mw.text.tag('div', {['class']='error'}, msg) end

function p.hiddenping(frame) local origArgs = frame:getParent.args local args = {} local maxArg = 0 local usernames = 0 for k, v in pairs(origArgs) do		if type(k) == 'number' and mw.ustring.match(v,'%S') then if k > maxArg then maxArg = k end local title = mw.title.new(v) if title then args[k] = title.rootText usernames = usernames + 1 else return makeError('Input contains forbidden characters.', frame) end end end

if usernames < 1 then return makeError('Username not given.', frame) elseif usernames > (tonumber(frame.args.max) or 50) then return makeError('More than '..tostring(frame.args.max or 50)..' names specified.', frame) else local outStr = '' for i = 1, maxArg do			if args[i] then outStr = outStr..'&#x200B;' end end return outStr end end

return p