Assume %data holds the line
This well replace ,, with , , giving you a space as your dummy data %data = $replacex(%data,$+($chr(44),$chr(44)),$chr(44) $chr(44))
However might have some probs if the two $#null fields are next to each other, so i suggest the same function embeeded inside itself 3 times...
%data = $replacex([color:red]$replacex([color:orange]$replacex(%data,$+($chr(44),$chr(44)),$chr(44) $chr(44)),$+($chr(44),$chr(44)),$chr(44) $chr(44))[/color],$+($chr(44),$chr(44)),$chr(44) $chr(44))[/color]