What names ? Can you please be more explicit about the problem ?
By the way, to include "," somewhere, use $chr(44) to do so as 44 is the ascii code of ",".
var %a = testingcommasinsomething
; the following won't work
var %a = $+(testing,,,commas,,,in,,,something)
; the following shall function
var %a = $+(testing,$chr(44),commas,$chr(44),in,$chr(44),something)