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Date:         Tue, 6 Jun 2000 14:05:52 +0200
Reply-To:     Jim Groeneveld <J.Groeneveld@ITGROUPS.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Jim Groeneveld <J.Groeneveld@ITGROUPS.COM>
Subject:      Re: passing equal sign as a parameter in macro
Comments: To: Annie Chang <chang5a@YAHOO.COM>
Content-Type: text/plain

Annie,

How about this:

%MACRO DeQuote (Arg); %LET Length = %LENGTH(&Arg); %IF %INDEX(%STR(%"%'),%QSUBSTR(&Arg,1,1)) AND &Length>1 AND %QSUBSTR(&Arg,&Length,1)=%QSUBSTR(&Arg,1,1) %THEN %SUBSTR(&Arg,2,%EVAL(&Length-2)); %ELSE &Arg; %MEND;

%MACRO Test (Arg); %PUT Arg=&Arg; %LET Arg = %DeQuote(&Arg); %PUT DeQuoted Arg=&Arg; %MEND;

%Test ("New=3"); %Test ('Old=2'); %Test (Single); %Test ("Embed"ded); %Test (%STR(%"Odd));

So you may pass a quoted argument with just single or double quotes to a macro and remove those quotes within the macro using the macro (function-like) %DEQUOTE. HTH - LMK.

Regards - Jim. -- Y. (Jim) Groeneveld, MSc IMRO TRAMARKO tel. +31 412 407 070 senior statistician, P.O. Box 1 fax. +31 412 407 080 head IT department 5350 AA BERGHEM IMRO TRAMARKO: a CRO J.Groeneveld@ITGroups.com the Netherlands in clinical research

My computer does not need me at all, but I can't do without it anymore.

> -----Original Message----- > From: Annie Chang [SMTP:chang5a@YAHOO.COM] > Sent: Tuesday, June 06, 2000 1:48 AM > To: SAS-L@LISTSERV.UGA.EDU > Subject: passing equal sign as a parameter in macro > > I think i have a hard question: > > %macro test ( var); > data tmp; > set dataset; > &var; > %mend; > > %test ( "new = 3"); > > What I am doing here? I am trying to pass an equal > sign "=" to the macro. > (don't complain about the silly example, I make it up > so that my question > is easier to explain). But it doesn't work. Since if I > quote it, > &var becomes > "new = 3"; > the quotation marks become errors. However, if I just > call it like > %test ( new = 3); > > sas will complain that there is no key parameter as > 'new'. i.e., sas treats > the equal sign as a default definition for a > parameter, and won't pass the > whole thing 'new = 3' to &var. > > I tried all those quote functions but to no avail. > Need an expert in SAS > to help!! > > Thank you. > > > > __________________________________________________ > Do You Yahoo!? > Yahoo! Photos -- now, 100 FREE prints! > http://photos.yahoo.com


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