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: How to read an integer from the minibuffer Date: Fri, 12 Nov 2021 01:57:32 +0100 Message-ID: <87fss29on7.fsf@zoho.eu> References: <87ee7nqomk.fsf@mbork.pl> <87v90ybymh.fsf@zoho.eu> <87y25u9pzj.fsf@zoho.eu> <993162c2a13d5ea3b0aa@heytings.org> <87lf1u9pdj.fsf@zoho.eu> <993162c2a1f85349fcfa@heytings.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="15821"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:JUbIotWg/+mlbFC26/XG4CGQKlY= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Fri Nov 12 01:58:24 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 1mlKtc-0003vA-DG for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 12 Nov 2021 01:58:24 +0100 Original-Received: from localhost ([::1]:42692 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mlKtb-0005hI-80 for geh-help-gnu-emacs@m.gmane-mx.org; Thu, 11 Nov 2021 19:58:23 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:44424) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mlKsx-0005h9-Nu for help-gnu-emacs@gnu.org; Thu, 11 Nov 2021 19:57:43 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]:53192) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mlKsw-0005FF-48 for help-gnu-emacs@gnu.org; Thu, 11 Nov 2021 19:57:43 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1mlKsu-000360-TN for help-gnu-emacs@gnu.org; Fri, 12 Nov 2021 01:57:40 +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: -15 X-Spam_score: -1.6 X-Spam_bar: - X-Spam_report: (-1.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.25, 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: 2.1.29 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" Xref: news.gmane.io gmane.emacs.help:134509 Archived-At: Gregory Heytings wrote: >>> Apparently it doesn't do what I want here, namely >>> converting "[0-9]" into "0123456789", "[0-9a-f]" into >>> "0123456789abcdef", and so forth. >> >> I think it can! > > Please show me how... First here is another version of "read-integer" ... We see a problem BTW that `string-to-number' returns 0 on error! (string-to-number "Number Nighty Nine") ; 0 Anyway ... (require 'cl-lib) (defun read-integer () (let ((str) (str-number) (n) ) (cl-loop until (progn (setq str (read-string "integer: ")) (if (string= str "0") (setq n 0) (setq str-number (string-to-number str)) (unless (= str-number 0) (setq n str-number) )) (integerp n)) ) n) ) ;; (read-integer) -- underground experts united https://dataswamp.org/~incal