Module:Ping2

local function printUsername(name) return  .. name ..  end

local p = {} function p.main(frame) local arg = frame:getParent.args[1] local tbl = {} for k, v in ipairs(mw.text.split(arg,'%s*,%s*')) do		tbl[k] = printUsername(v) end local output = table.concat(tbl, ', ') return output end

return p