From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Pascal J. Bourguignon" Newsgroups: gmane.emacs.help Subject: Re: if vs. when vs. and: style question Date: Tue, 24 Mar 2015 16:18:04 +0100 Organization: Informatimago Message-ID: <87iodq4e6r.fsf@kuiper.lan.informatimago.com> References: <87sicvwckx.fsf@wmi.amu.edu.pl> <87wq27yvqg.fsf@debian.uxu> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Trace: ger.gmane.org 1427211034 8695 80.91.229.3 (24 Mar 2015 15:30:34 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 24 Mar 2015 15:30:34 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Tue Mar 24 16:30:31 2015 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YaQmd-0002zl-1V for geh-help-gnu-emacs@m.gmane.org; Tue, 24 Mar 2015 16:30:23 +0100 Original-Received: from localhost ([::1]:33055 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YaQmc-0006Ju-Bp for geh-help-gnu-emacs@m.gmane.org; Tue, 24 Mar 2015 11:30:22 -0400 Original-Path: usenet.stanford.edu!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail Original-Newsgroups: gnu.emacs.help Original-Lines: 37 Original-X-Trace: individual.net T/AzKj3mytnVVoVBVcr/+wEGXQa7EVavYEObJFtvoWjKA0YMFh Cancel-Lock: sha1:NDIyZDRhZmViMDQ0MzE2MjQ1OWQyMDFlNGIwYzQ4YmE5ZmYxMmYyNA== sha1:LPTAM+iUOBPGBdT0EBUW27/eaj8= Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwAQMAAABtzGvEAAAABlBMVEUAAAD///+l2Z/dAAAA oElEQVR4nK3OsRHCMAwF0O8YQufUNIQRGIAja9CxSA55AxZgFO4coMgYrEDDQZWPIlNAjwq9 033pbOBPtbXuB6PKNBn5gZkhGa86Z4x2wE67O+06WxGD/HCOGR0deY3f9Ijwwt7rNGNf6Oac l/GuZTF1wFGKiYYHKSFAkjIo1b6sCYS1sVmFhhhahKQssRjRT90ITWUk6vvK3RsPGs+M1RuR mV+hO/VvFAAAAABJRU5ErkJggg== X-Accept-Language: fr, es, en User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) Original-Xref: usenet.stanford.edu gnu.emacs.help:211009 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:103290 Archived-At: Emanuel Berg writes: >> (defun find-thingy (name) >> (or (find-thingy-in-whatcha name) >> (find-thingy-in-macall name) >> (find-thingy-in-it name) >> (error "not found"))) >> >> which is much more concise and clear than ... > > But is it clearer than > > (defun look-here () "here") > > (cond > ((look-here)) > ((look-there)) > (t (message "Not found"))) > > as well? I always thought of `cond' and `if' as > identical save for syntax. In my opinion, yes. I believe this cond form is harder to read, because it is inhabitual. Personnally, I would understand it as well, but I'm not sure it would be the case of all lispers. -- __Pascal Bourguignon__ http://www.informatimago.com/ “The factory of the future will have only two employees, a man and a dog. The man will be there to feed the dog. The dog will be there to keep the man from touching the equipment.” -- Carl Bass CEO Autodesk