From mboxrd@z Thu Jan  1 00:00:00 1970
Path: main.gmane.org!not-for-mail
From: Edward O'Connor <oconnor@soe.ucsd.edu>
Newsgroups: gmane.emacs.help
Subject: Re: Designing interface of a simple elisp function
Date: 12 Oct 2002 17:24:55 -0700
Organization: OEC, Jacobs School of Engineering, UCSD
Sender: help-gnu-emacs-admin@gnu.org
Message-ID: <ddn0pjfanc.fsf@oecpc11.ucsd.edu>
References: <b00bb831.0210120739.3ae4248d@posting.google.com> <87y993eiqc.fsf@pokey.henrik-motakef.de>
NNTP-Posting-Host: localhost.gmane.org
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
X-Trace: main.gmane.org 1034468852 5446 127.0.0.1 (13 Oct 2002 00:27:32 GMT)
X-Complaints-To: usenet@main.gmane.org
NNTP-Posting-Date: Sun, 13 Oct 2002 00:27:32 +0000 (UTC)
Return-path: <help-gnu-emacs-admin@gnu.org>
Original-Received: from monty-python.gnu.org ([199.232.76.173])
	by main.gmane.org with esmtp (Exim 3.35 #1 (Debian))
	id 180WbQ-0001PN-00
	for <gnu-help-gnu-emacs@m.gmane.org>; Sun, 13 Oct 2002 02:27:29 +0200
Original-Received: from localhost ([127.0.0.1] helo=monty-python.gnu.org)
	by monty-python.gnu.org with esmtp (Exim 4.10)
	id 180WaL-0002nD-00; Sat, 12 Oct 2002 20:26:21 -0400
Original-Path: shelby.stanford.edu!newsfeed.stanford.edu!canoe.uoregon.edu!logbridge.uoregon.edu!ihnp4.ucsd.edu!news.ucsd.edu!not-for-mail
Original-Newsgroups: gnu.emacs.help,comp.emacs
Original-Followup-To: comp.emacs
Original-Lines: 19
Original-NNTP-Posting-Host: oecpc11.ucsd.edu
Original-X-Trace: news1.ucsd.edu 1034468705 12326 132.239.18.171 (13 Oct 2002 00:25:05 GMT)
Original-X-Complaints-To: usenet@news1.ucsd.edu
Original-NNTP-Posting-Date: Sun, 13 Oct 2002 00:25:05 +0000 (UTC)
User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.2
Original-Xref: shelby.stanford.edu gnu.emacs.help:105986 comp.emacs:75253
Original-To: help-gnu-emacs@gnu.org
Errors-To: help-gnu-emacs-admin@gnu.org
X-BeenThere: help-gnu-emacs@gnu.org
X-Mailman-Version: 2.0.11
Precedence: bulk
List-Help: <mailto:help-gnu-emacs-request@gnu.org?subject=help>
List-Post: <mailto:help-gnu-emacs@gnu.org>
List-Subscribe: <http://mail.gnu.org/mailman/listinfo/help-gnu-emacs>,
	<mailto:help-gnu-emacs-request@gnu.org?subject=subscribe>
List-Id: Users list for the GNU Emacs text editor <help-gnu-emacs.gnu.org>
List-Unsubscribe: <http://mail.gnu.org/mailman/listinfo/help-gnu-emacs>,
	<mailto:help-gnu-emacs-request@gnu.org?subject=unsubscribe>
List-Archive: <http://mail.gnu.org/pipermail/help-gnu-emacs/>
Xref: main.gmane.org gmane.emacs.help:2533
X-Report-Spam: http://spam.gmane.org/gmane.emacs.help:2533

On 12 Oct 2002, Henrik Motakef wrote:

> The map-functions work on sequences, not only lists. So, for
> example
> 
>   (mapcar 'identity "foo")
> 
> returns a list of three characters. An alternative would be
> 
>   (split-string "foo" "")
> 
> which gives a list of one-character strings.

You want to be careful with this latter option if you want to
write portable Elisp programs. Some XEmacsen will infloop on that.

-- 
Edward O'Connor
oconnor@soe.ucsd.edu