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 01:41:44 +0100 Message-ID: <87lf1u9pdj.fsf@zoho.eu> References: <87ee7nqomk.fsf@mbork.pl> <87v90ybymh.fsf@zoho.eu> <87y25u9pzj.fsf@zoho.eu> <993162c2a13d5ea3b0aa@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="38992"; 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:Xl7ABFIrhqNV+1dO5t4W0hWNLco= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Fri Nov 12 01:46:24 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 1mlKhz-0009v1-Vo for geh-help-gnu-emacs@m.gmane-mx.org; Fri, 12 Nov 2021 01:46:23 +0100 Original-Received: from localhost ([::1]:38930 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mlKhy-0002QT-IB for geh-help-gnu-emacs@m.gmane-mx.org; Thu, 11 Nov 2021 19:46:22 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:42426) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mlKgl-0002P5-Bb for help-gnu-emacs@gnu.org; Thu, 11 Nov 2021 19:45:10 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]:38294) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mlKgi-0003eg-C5 for help-gnu-emacs@gnu.org; Thu, 11 Nov 2021 19:45:06 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1mlKgg-0008Fb-3P for help-gnu-emacs@gnu.org; Fri, 12 Nov 2021 01:45:02 +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:134506 Archived-At: Gregory Heytings wrote: >> Rather, I meant show how to use the second solution to >> solve the OPs example, i.e. to read an integer and only >> an integer. > > Just use > > (restricted-read-from-minibuffer "Integer? " "^[0-9][0-9]*$") Same if: Wrong number of arguments: string-match, 4 > The fourth argument is new in Emacs 29, indeed. GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, cairo version 1.16.0) of 2021-10-04 >>> (BTW, it seems that there's no way in Elisp to "expand" >>> a regexp charset, e.g. "[0-9]" into "0123456789". >>> That would make the ALLOWED-CHARS argument easier to >>> type in.) >> >> There is such a package, xr - the reverse of rx, LOL :) >> >> https://elpa.gnu.org/packages/xr.html > > 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! -- underground experts united https://dataswamp.org/~incal