local p = {}



local function makeError(msg)

	msg ='Error in [[Template:Reply to]]: ' .. msg

	return mw.text.tag('strong', {['class'='error'}, msg)

end



local function makeLink(u, l)

	return '[[User:' .. u .. '|' .. (l or u) .. ']]'

end



function p.replyto(frame)

	local outArray, argIndex = {}, {}

	local args = frame:getParent().args

	args.label1 = args.label1 or args.label



	for k, v in pairs(args) do

		if type(k) == 'number' and string.match(v,'%S') then

			table.insert(argIndex, k)

		end

	end

	table.sort(argIndex)

	for _, k in ipairs(argIndex) do

		local title = mw.title.new(argsk])

		if not title then return makeError('Input contains forbidden characters.') end

		title = title.rootText

		local label = args'label'..tostring(k)]

		if label == '' then label = '​' end

		table.insert( outArray, makeLink(title, label) )

	end



	if #outArray > (tonumber(frame.args.max) or 50) then

		return makeError('More than ' .. tostring(frame.args.max or 50) .. ' names specified.')

	end

	if #outArray < 1 then

		if frame.args.example then

			outArray1 = makeLink(frame.args.example)

		else

			return makeError('Username not given.')

		end

	end



	local conjuction = (#outArray == 2 and ' ' or ', ') .. (args.c or 'and') .. ' '

	local outStr = (args.c == '') and table.concat(outArray, ', ') or mw.text.listToText(outArray, ', ', conjuction)

	

	return mw.text.tag('span', {['class'='template-ping'}, (args.prefix or '@') .. outStr .. (args.p or ':'))

end



return p