Path: utzoo!attcan!uunet!cs.utexas.edu!wuarchive!mit-eddie!mintaka!yale!think.com!barmar
From: barmar@think.com (Barry Margolin)
Newsgroups: comp.lang.lisp
Subject: Macro expanding into multiple forms
Message-ID: <1990Oct31.010958.28374@Think.COM>
Date: 31 Oct 90 01:09:58 GMT
References: <1990Oct30.225047.17818@ux1.cso.uiuc.edu>
Sender: news@Think.COM
Organization: Thinking Machines Corporation, Cambridge MA, USA
Lines: 15

In article <1990Oct30.225047.17818@ux1.cso.uiuc.edu> carroll@cs.uiuc.edu (Alan M. Carroll) writes:
>What is the best way to have a macro expand to more than 1 top-level form in
>CommonLisp? Right now I use something like `(progn form1 form2 ...), but I
>worry that since the forms aren't actually at the top level in the file,
>they might not be processed/compiled/etc. correctly.

That is the correct way to do it.  See the last sentence of p.83 of CLtL
2nd Edition: "As a special case, however, if a PROGN form appears at top
level, then all forms within that PROGN are considered by the compiler to
be top-level forms."
--
Barry Margolin, Thinking Machines Corp.

barmar@think.com
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