From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Jean Louis Newsgroups: gmane.emacs.help Subject: [SOLVED]: Re: Help improve regular expression for 24 hours format Date: Thu, 24 Nov 2022 17:22:02 +0300 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="8224"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/2.2.7+37 (a90f69b) (2022-09-02) Cc: help-gnu-emacs@gnu.org, Yuri Khan To: tomas@tuxteam.de Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Thu Nov 24 15:32:05 2022 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 1oyDGm-0001vv-Vx for geh-help-gnu-emacs@m.gmane-mx.org; Thu, 24 Nov 2022 15:32:04 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oyDGI-0007Mt-D1; Thu, 24 Nov 2022 09:31:45 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oyDFb-0007J0-4v for help-gnu-emacs@gnu.org; Thu, 24 Nov 2022 09:30:53 -0500 Original-Received: from stw1.rcdrun.com ([217.170.207.13]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oyDFY-0006fe-N2 for help-gnu-emacs@gnu.org; Thu, 24 Nov 2022 09:30:50 -0500 Original-Received: from localhost ([::ffff:102.82.241.226]) (AUTH: PLAIN admin, TLS: TLS1.3,256bits,ECDHE_RSA_AES_256_GCM_SHA384) by stw1.rcdrun.com with ESMTPSA id 00000000000F613A.00000000637F8016.00005412; Thu, 24 Nov 2022 07:30:46 -0700 Mail-Followup-To: tomas@tuxteam.de, help-gnu-emacs@gnu.org, Yuri Khan Content-Disposition: inline In-Reply-To: Received-SPF: pass client-ip=217.170.207.13; envelope-from=bugs@gnu.support; helo=stw1.rcdrun.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 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-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.help:141149 Archived-At: * tomas@tuxteam.de [2022-11-24 13:47]: > On Thu, Nov 24, 2022 at 01:31:00PM +0300, Jean Louis wrote: > > [...] > > > Do you have completed example using: > > (or (seq "0" (any digit)) (seq "1" (any digit)) (seq "2" (any "0-3"))) ? > > I'm not supposed to be doing this now, so the rest is left as an > exercise to the reader, alas. > > Hint: look at the regexp your `rx' invocation produces and translate > backwards from it. I did the exercise and I came up with the below. It looks much better this way. 🤝 Thanks much. (defvar rcd-rx-time (rx line-start (or (seq "0" (any digit)) (seq "1" (any digit)) (seq "2" (any "0-3"))) ":" (seq (any "0-5") (any digit)) line-end) "Regular expression for 24 hours format") ➜ "^\\(?:0[[:digit:]]\\|1[[:digit:]]\\|2[0-3]\\):[0-5][[:digit:]]$" -- Jean Take action in Free Software Foundation campaigns: https://www.fsf.org/campaigns In support of Richard M. Stallman https://stallmansupport.org/