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Re: Refer to List of Arguments in Emacs Lisp Function
From: |
Barry Margolin |
Subject: |
Re: Refer to List of Arguments in Emacs Lisp Function |
Date: |
Thu, 13 Nov 2014 11:02:41 -0500 |
User-agent: |
MT-NewsWatcher/3.5.3b3 (Intel Mac OS X) |
In article <mailman.13526.1415865742.1147.help-gnu-emacs@gnu.org>,
Alexander Shukaev <haroogan@gmail.com> wrote:
> Hello,
>
> I can't find whether there is a possibility to refer to the whole list of
> arguments of a function in Emacs Lisp. For example:
>
> (defun move (x y z)
> (apply do-move (args))
>
> What I mean by (args) primitive here is a list (x y z). This use case
> illustrates usefulness of such a primitive, i.e. forwarding of arguments to
> another internal call without a need to rewrite them by hand. (length
> (args)) might be useful in some cases too. Is there anything like that in
> Emacs Lisp already?
I don't think there's any built-in way to get a list of the arguments
that were named separately in the argument list. Emacs Lisp's argument
processing is very similar to Common Lisp's, and it doesn't have a way
to do it, either. So you have to refer to the named arguments themselves:
(defun move (x y z)
(apply do-move (list x y z)))
(defun move (x y z)
(funcall do-move x y z))
--
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***
Re: Refer to List of Arguments in Emacs Lisp Function,
Barry Margolin <=
Re: Refer to List of Arguments in Emacs Lisp Function, Ted Zlatanov, 2014/11/17