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.bugs Subject: bug#59531: 29.0.50: An alternative to `string-to-number` which throws an error (or returns a NIL value) when input is non-parseable as number Date: Fri, 16 Dec 2022 09:28:14 +0300 Message-ID: References: <838rk0ye7t.fsf@gnu.org> <87zgbqndl3.fsf@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="30707"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Mutt/2.2.9+54 (af2080d) (2022-11-21) Cc: Eli Zaretskii , 59531@debbugs.gnu.org, Ramesh Nedunchezian To: Robert Pluim Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Dec 16 07:30:40 2022 Return-path: Envelope-to: geb-bug-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 1p64Ex-0007ns-NY for geb-bug-gnu-emacs@m.gmane-mx.org; Fri, 16 Dec 2022 07:30:39 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1p64EW-0003NJ-JV; Fri, 16 Dec 2022 01:30:13 -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 1p64EO-0003M1-K5 for bug-gnu-emacs@gnu.org; Fri, 16 Dec 2022 01:30:05 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1p64EM-00040Z-I7 for bug-gnu-emacs@gnu.org; Fri, 16 Dec 2022 01:30:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1p64EM-0004TK-3p for bug-gnu-emacs@gnu.org; Fri, 16 Dec 2022 01:30:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Jean Louis Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 16 Dec 2022 06:30:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 59531 X-GNU-PR-Package: emacs Original-Received: via spool by 59531-submit@debbugs.gnu.org id=B59531.167117214517131 (code B ref 59531); Fri, 16 Dec 2022 06:30:02 +0000 Original-Received: (at 59531) by debbugs.gnu.org; 16 Dec 2022 06:29:05 +0000 Original-Received: from localhost ([127.0.0.1]:47406 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1p64DR-0004SF-D0 for submit@debbugs.gnu.org; Fri, 16 Dec 2022 01:29:05 -0500 Original-Received: from stw1.rcdrun.com ([217.170.207.13]:47061) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1p64DM-0004Rg-Ve for 59531@debbugs.gnu.org; Fri, 16 Dec 2022 01:29:02 -0500 Original-Received: from localhost ([::ffff:197.239.4.25]) (AUTH: PLAIN admin, TLS: TLS1.3,256bits,ECDHE_RSA_AES_256_GCM_SHA384) by stw1.rcdrun.com with ESMTPSA id 000000000010383B.00000000639C102E.00007617; Thu, 15 Dec 2022 23:29:01 -0700 Content-Disposition: inline In-Reply-To: <87zgbqndl3.fsf@gmail.com> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:251182 Archived-At: (defun string-is-number-p (s) "Return number only if string is actual number, otherwise NIL." (let* ((s (string-trim s))) (cond ((seq-empty-p s) nil) ((string-match "[^0123456789\\.-]" s) nil) ((string-match "-" s 1) nil) ((numberp (string-to-number s)) (string-to-number s))))) I use this function to make sure string is number and it returns either the number of nil, and function is not exhaustive. Jean Take action in Free Software Foundation campaigns: https://www.fsf.org/campaigns In support of Richard M. Stallman https://stallmansupport.org/