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From: Pascal Bourguignon <spam@thalassa.informatimago.com>
Subject: Re: elisp macros problem
Date: 24 Jul 2004 21:59:05 +0200	[thread overview]
Message-ID: <873c3h41o6.fsf@thalassa.informatimago.com> (raw)
In-Reply-To: barmar-2EE74B.15152724072004@comcast.dca.giganews.com

Barry Margolin <barmar@alum.mit.edu> writes:

> In article <cduad9$7tg$1@mughi.cs.ubc.ca>,
>  Lowell Kirsh <lkirsh@cs.ubc.ca> wrote:
> 
> > I am defining an emacs lisp macro to do:
> > 
> > (my-add-hook 'lisp
> >     ...)
> > 
> > which should give:
> > 
> > (add-hook 'lisp-mode-hook
> >    (lambda () ...))
> > 
> > I have:
> > 
> > (defmacro my-add-hook (hook &rest body)
> >    (let ((tempvar (make-symbol "cat")))
> >      `(flet ((,tempvar (sym str)
> >                        (make-symbol (concat (symbol-name sym) str))))
> >         (add-hook (cat ,hook "-mode-hook") (lambda () ,@body)))))
> > 
> > Does anyone know what's wrong with this and why it doesn't work?
> 
> You need to use ,tempvar in place of cat in the last line.

Then, (not (eq (make-symbol "toto")(make-symbol "toto"))), even on emacs lisp.
You should use intern!


-- 
__Pascal Bourguignon__                     http://www.informatimago.com/

There is no worse tyranny than to force a man to pay for what he does not
want merely because you think it would be good for him. -- Robert Heinlein

  reply	other threads:[~2004-07-24 19:59 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-07-24 18:39 elisp macros problem Lowell Kirsh
2004-07-24 19:00 ` David Kastrup
2004-07-24 22:08   ` Lowell Kirsh
2004-07-24 23:41     ` David Kastrup
2004-07-25  1:58       ` Lowell Kirsh
2004-07-25 10:59         ` Kalle Olavi Niemitalo
2004-07-24 19:15 ` Barry Margolin
2004-07-24 19:59   ` Pascal Bourguignon [this message]
2004-07-24 20:50     ` David Kastrup
2004-07-24 21:49       ` Lowell Kirsh
2004-07-26  1:35 ` Lowell Kirsh
2004-07-26  1:55   ` Rahul Jain
2004-07-26  2:53     ` Lowell Kirsh
2004-07-26  4:05       ` Pascal Bourguignon
2004-07-26  4:13         ` Lowell Kirsh
2004-07-26  2:54     ` Lowell Kirsh
2004-07-26 22:16       ` Kalle Olavi Niemitalo
2004-07-26 22:58       ` Kevin Rodgers
2004-07-26  2:03   ` Barry Margolin
2004-07-26  3:06     ` Lowell Kirsh
2004-07-26  4:49       ` Barry Margolin
2004-07-26  5:20         ` Pascal Bourguignon
2004-07-26  6:10       ` Oliver Scholz
2004-07-26  5:55   ` David Kastrup
2004-07-27  6:38     ` Lowell Kirsh
2004-07-27  6:54     ` Lowell Kirsh
2004-07-27  7:14       ` David Kastrup
2004-07-27  8:10         ` Lowell Kirsh
2004-07-27 12:05           ` Pascal Bourguignon
2004-07-28  5:03             ` Rob Warnock
2004-07-31 20:46             ` Lowell Kirsh
2004-08-03 18:44               ` Michael Slass
2004-07-27 23:22         ` Barry Fishman

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