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Re: Is it possible for a macro to expand to nothing?


From: Helmut Eller
Subject: Re: Is it possible for a macro to expand to nothing?
Date: Fri, 27 Nov 2009 18:19:11 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux)

* Pascal J. Bourguignon [2009-11-27 14:52+0100] writes:

> ,@ cannot be put outside of a ` context, never ever.

That's not true.  ,@ outside of backquote is just an ordinary symbol:

(defun ,@ () "it works")
(defun , () "this works too")
(message "See, how %s.  And %s." (,@) (,))

Helmut


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