Date:         Sun, 17 Jul 2005 22:20:46 +0000
Reply-To:     toby dunn <tobydunn@HOTMAIL.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         toby dunn <tobydunn@HOTMAIL.COM>
Subject:      Re: nested macros definitions
Comments: To: caatcher@GAZETA.PL
In-Reply-To:  <dbd3gm$717$1@inews.gazeta.pl>
Content-Type: text/plain; format=flowed

Majkel,

All I can say is this is a bad idea for so many reasons I am not going to
even start.  Instead I am going to show you how to do what you want and let
you deal with the headaches.

I put my touch on the macros but that shouldn't be a big deal.


%macro outer(outeryear= ) ;
%local outeryear ;
    %macro inner(inneryear=&outeryear) ;
      %local inneryear ;
       title "Statistics for year &inneryear" ;
    %mend inner ;
    %inner
%mend outer ;

%outer(outeryear= 2005)

Should do it.


Toby Dunn




From: majkel <caatcher@GAZETA.PL>
Reply-To: majkel <caatcher@GAZETA.PL>
To: SAS-L@LISTSERV.UGA.EDU
Subject: Re: nested macros definitions
Date: Sun, 17 Jul 2005 10:07:04 +0200

Hello
 > While I'm not sure what you are really asking for, would defining the
 > macro variable as local accomplish what you want?

Not quite. I would like to be able to execute the %inner macro
beyond the %outer macro.

Let's say I define something like this again:

%macro outer(year);
     %macro inner;
         title "Statistics for year &year";
     %mend inner;
%mend outer;

Then, I execute the %outer macro to compile the %inner macro.
%outer(2005);

Then I execute the %inner macro:
%inner;

and I would like to have the title set for:
"Statistics for year 2005",
but what I get, is:
"Statistics for year &year"
because the &year variable is a local variable of macro %outer.
The problem is, that this variable is  resolved not during compilation time
when executing
  %outer(2005) - only then the &year variable is known an equals 2005. Only
when I invoke
%inner; the variable &year is looked for, but it is not known in this
context. The problem is, how to
replace &year for 2005 during this: %outer(2005), so that the phrase &year
does not appear any more
in the body of a macro, when executing this: %inner.
Thanks for an interest.

best regards,
michael