From: Nordlöw <per.nordlow@gmail.com>
To: help-gnu-emacs@gnu.org
Subject: Re: Wanted: Adding list-elements into an existing list
Date: Thu, 16 Oct 2008 06:36:30 -0700 (PDT) [thread overview]
Message-ID: <f3c2bc36-6120-4567-9297-3e91bf32e350@u46g2000hsc.googlegroups.com> (raw)
In-Reply-To: 874p3cvfwy.fsf@zeekat.nl
On 16 Okt, 15:16, Joost Diepenmaat <jo...@zeekat.nl> wrote:
> Nordlöw <per.nord...@gmail.com> writes:
> > Is there a variant of the function add-to-list(a b) where b can be a
> > list aswell?
>
> > (add-list-elements-to-list '(a b c) '(c d e)) should evaluate '(a b c
> > d e)
>
> > or do I have to implement it myself using an iteration-construct?
>
> That's what (append) does:
>
> append is a built-in function in `C source code'.
>
> (append &rest SEQUENCES)
>
> Concatenate all the arguments and make the result a list. The result
> is a list whose elements are the elements of all the arguments. Each
> argument may be a list, vector or string. The last argument is not
> copied, just used as the tail of the new list.
>
> --
> Joost Diepenmaat | blog:http://joost.zeekat.nl/| work:http://zeekat.nl/
(append) does not modify its first argument which is what I want.
I can solve it through
(setq x (append x y))
but before I create this new function for this I just wanted to make
sure that no such function already exists....
/Nordlöw
next prev parent reply other threads:[~2008-10-16 13:36 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-16 13:13 Wanted: Adding list-elements into an existing list Nordlöw
2008-10-16 13:16 ` Joost Diepenmaat
2008-10-16 13:36 ` Nordlöw [this message]
2008-10-16 15:43 ` Drew Adams
2008-10-16 16:02 ` Allan Gottlieb
2008-10-16 16:12 ` Drew Adams
2008-10-17 0:28 ` Barry Margolin
2008-10-16 22:32 ` Pascal J. Bourguignon
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