local p = {}  local function errormsg (msg) 	return require('Module:Error').error{ [1] = '[[Module:Reply_to]]錯誤：' .. msg } end  local function nouser (template) 	return errormsg( '使用[[' ..  template .. ']]時出現錯誤：並無提供-{zh:使用者名稱;zh-tw:使用者名稱;zh-cn:用户名;}-。模板用法見於[[' ..  template .. ']]。' ) end  local function maxuser (template, count) 	return errormsg( '[[' ..  template .. ']]最多支持' .. (count or '50') .. '个-{zh-hant:用戶;zh-tw:使用者;zh-hans:用户;}-。如果需要超过' .. (count or '50') .. '个，必须使用多个模板。模板用法見於[[' ..  template .. ']]。' ) end  function p._replyto(args) 	local ret = {} 	local error = '' 	local format = string.format 	local template = args['template'] or 'Template:Reply to' 	local max = tonumber(args['max']) or 50 	if max > 50 then 		error = ('受於MediaWiki系統限制，最多只能同時ping50人。') 		max = 50 	end 	local i = 1 	while true do         username = args[i]         if (username ~= nil) then         	if username == '' then else         		ret[#ret + 1] = '[[User:' .. username .. '|' .. (args['label' .. i] or username)  .. ']]'         	end 			if #ret >= max then 				error = maxuser(template,max) 				break 			end 			i = i +1 		else 			break         end 	end 	ret = mw.text.listToText(ret,(args['c'] or '、'),(args['c'] or '、')) 	if ret == '' then 		return nouser(template) 	end 	ret = (args['@'] or '@') .. '-{' .. ret .. '}-' .. (args['p'] or '：')  	return mw.text.tag('span', {['class']='template-ping'}, ret) .. error end  function p.replyto(frame) 	local args = {} 	if frame.args.parent then         args = frame:getParent().args     else         args = frame.args     end     args['template'] = frame.args['template'] 	return p._replyto(args) end  function p.ping(frame) 	return p.replyto(frame) end  function p._unping(args) 	local ret = {} 	local error = '' 	local format = string.format 	local i = 1 	while true do         username = args[i]         if (username ~= nil) then         	if username == '' then else         		ret[#ret + 1] = '[[:cmn:User:' .. username .. '|' ..  (args['label' .. i] or username) .. ']]'         	end 			if #ret >= 50 then 				error = maxuser('Template:Unping') 				break 			end 			i = i +1 		else 			break         end 	end 	ret = mw.text.listToText(ret,'、','、') 	if ret == '' then 		return nouser('Template:Unping') 	end 	ret = (args['@'] or '@') .. '-{' .. ret .. '}-' .. (args['p'] or '：') 	return mw.text.tag('span', {['class']='template-unping'}, ret) .. error end  function p.unping(frame) 	local args = frame:getParent().args 	return p._unping(args) end  function p._hidden_ping(args) 	local ret = {} 	local error = '' 	local format = string.format 	local i = 1 	while true do         username = args[i]         if (username ~= nil) then         	if username == '' then else         		ret[#ret + 1] = '[[User:' .. username .. '|' .. (args['label' .. i] or username)  .. ']]'         	end 			if #ret >= 50 then 				error = maxuser('Template:Noping') 				break 			end 			i = i +1 		else 			break         end 	end 	ret = mw.text.listToText(ret) 	if ret == '' then 		return  nouser('Template:Noping') 	end 	ret = '<span style="display:none">' .. ret .. '</span>' .. error 	return ret end  function p.hidden_ping(frame) 	local args = frame:getParent().args 	return p._hidden_ping(args) end  return p