Date:         Fri, 23 Mar 2012 11:07:38 -0400
Reply-To:     Tom Abernathy <tom.abernathy@GMAIL.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Tom Abernathy <tom.abernathy@GMAIL.COM>
Subject:      Re: User-Defined Format Name as Parameter in SAS Macro

I usually have the user specify the format, but add logic to append the period
if they forgot it.

%macro xx(format=);
...
%if %bquote(&format)= %then %let format=best12.;
%else %if not %index(&format,.) %then %let format=&format..;
...
... put(pdx,&format)...

%mend xx;