[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
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
- Re: Is it possible for a macro to expand to nothing?, (continued)
- Message not available
- Re: Is it possible for a macro to expand to nothing?, Alan Mackenzie, 2009/11/26
- Re: Is it possible for a macro to expand to nothing?, Pascal J. Bourguignon, 2009/11/26
- Re: Is it possible for a macro to expand to nothing?, Lennart Borgman, 2009/11/26
- Message not available
- Re: Is it possible for a macro to expand to nothing?, Pascal J. Bourguignon, 2009/11/26
- Re: Is it possible for a macro to expand to nothing?, Lennart Borgman, 2009/11/26
- Re: Is it possible for a macro to expand to nothing?, Kevin Rodgers, 2009/11/27
- Message not available
- Re: Is it possible for a macro to expand to nothing?, Alan Mackenzie, 2009/11/27
- Re: Is it possible for a macro to expand to nothing?, Pascal J. Bourguignon, 2009/11/27
- Re: Is it possible for a macro to expand to nothing?, Alan Mackenzie, 2009/11/27
- Re: Is it possible for a macro to expand to nothing?, Pascal J. Bourguignon, 2009/11/27
- Re: Is it possible for a macro to expand to nothing?,
Helmut Eller <=
- Re: Is it possible for a macro to expand to nothing?, Pascal J. Bourguignon, 2009/11/27
- Re: Is it possible for a macro to expand to nothing?, Tim X, 2009/11/27
- Re: Is it possible for a macro to expand to nothing?, Pascal J. Bourguignon, 2009/11/27
- Re: Is it possible for a macro to expand to nothing?, Alan Mackenzie, 2009/11/28
- Re: Is it possible for a macro to expand to nothing?, Pascal J. Bourguignon, 2009/11/28
- Re: Is it possible for a macro to expand to nothing?, Thierry Volpiatto, 2009/11/28
- Message not available
- Re: Is it possible for a macro to expand to nothing?, Pascal J. Bourguignon, 2009/11/28
- Re: Is it possible for a macro to expand to nothing?, Pascal J. Bourguignon, 2009/11/24
- Message not available
- Re: Is it possible for a macro to expand to nothing?, Pascal J. Bourguignon, 2009/11/23
- RE: Is it possible for a macro to expand to nothing?, Drew Adams, 2009/11/23