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: zonk *log-edit-files* for RCS (or when there is only one file) Date: Tue, 09 Feb 2021 20:53:43 +0100 Message-ID: <87tuqlhvaw.fsf@zoho.eu> References: <87r1lp5foh.fsf@gnuvola.org> <871rdpkv1p.fsf@zoho.eu> <87k0rh5e20.fsf@gnuvola.org> <87mtwdjepy.fsf@zoho.eu> <87eehp5cqf.fsf@gnuvola.org> <87blctjdxh.fsf@zoho.eu> <87a6sd5ae2.fsf@gnuvola.org> 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="12226"; 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:samMRqh/lM0OCiJkhr5ygTtjfhs= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Tue Feb 09 21:30:37 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 1l9Zef-00033N-IO for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 09 Feb 2021 21:30:37 +0100 Original-Received: from localhost ([::1]:56220 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l9Zec-0001mC-7d for geh-help-gnu-emacs@m.gmane-mx.org; Tue, 09 Feb 2021 15:30:36 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:35358) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l9Z5A-0006fq-Gs for help-gnu-emacs@gnu.org; Tue, 09 Feb 2021 14:53:56 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]:48160) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l9Z58-00036v-MC for help-gnu-emacs@gnu.org; Tue, 09 Feb 2021 14:53:56 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1l9Z54-0000kf-SK for help-gnu-emacs@gnu.org; Tue, 09 Feb 2021 20:53:50 +0100 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:127736 Archived-At: Thien-Thi Nguyen wrote: > (defun ttn-log-edit-show-files-maybe () > (unless (null (cdr (log-edit-files))) > (log-edit-show-files))) > > [...] > > It works fine, although i suspect the moment i add it to my > pile of hacks, someone will check-in a more elegant > method... :-D On the contrary, that's so cool! I had to think and think and think before I realized it is 0 or 1 file -> don't do it, but 2 or more files -> do it. Only ... isn't `unless' and `null' = `when'? (unless (null (cdr '())) 1) ; nil (unless (null (cdr '(1))) 1) ; nil (unless (null (cdr '(1 2))) 1) ; 1 (when (cdr '()) 1) ; nil (when (cdr '(1)) 1) ; nil (when (cdr '(1 2)) 1) ; 1 -- underground experts united http://user.it.uu.se/~embe8573 https://dataswamp.org/~incal