From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Emanuel Berg via Users list for the GNU Emacs text editor Newsgroups: gmane.emacs.help Subject: Re: Appending lists Date: Tue, 15 Jun 2021 09:09:29 +0200 Message-ID: <8735tjzjrq.fsf@zoho.eu> References: <87v96g2bf3.fsf@zoho.eu> Reply-To: Emanuel Berg Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="31419"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:irORDEu1Bwr/8weC/9WtO797Ym4= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue Jun 15 09:10:52 2021 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lt3Dn-0007xc-JC for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 15 Jun 2021 09:10:51 +0200 Original-Received: from localhost ([::1]:56722 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lt3Dm-0002QK-8I for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 15 Jun 2021 03:10:50 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:56808) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lt3D6-0002Nx-Lg for help-gnu-emacs@gnu.org; Tue, 15 Jun 2021 03:10:08 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]:45724) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lt3D3-0002KC-FW for help-gnu-emacs@gnu.org; Tue, 15 Jun 2021 03:10:06 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1lt3D0-0006w0-I8 for help-gnu-emacs@gnu.org; Tue, 15 Jun 2021 09:10:02 +0200 X-Injected-Via-Gmane: http://gmane.org/ Mail-Followup-To: help-gnu-emacs@gnu.org Mail-Copies-To: never Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 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-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:130863 Archived-At: henri-biard wrote: >> Looks - bad. > > Now I am really getting wound up ! > > Should I use (append city district) or (list city district) ? Ha, it is difficult to say in this case :) But both are easy to understand and very common so you should know both anyway, then just use what works for you, I mean that's one way to describe programming even, first collect knowledge, then use you instinct/intuition to put it to good use... > Using defvar seemed good enough for me. > > Anyway, concatenating all the arguments in "append" make the > result a list. C-h f append RET for example to learn whet it does and what the interface is. Do that for every function you come by, basically, that has a short name. Because chances are it is a pretty fundamental/common/useful building block of the language... -- underground experts united https://dataswamp.org/~incal