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: Thu, 11 Nov 2021 14:39:02 +0100 Message-ID: <87v90ybymh.fsf@zoho.eu> References: <87ee7nqomk.fsf@mbork.pl> 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="15017"; 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:el4nODyjxIwP40ZAbcutvlmQO9Y= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Thu Nov 11 14:39:40 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 1mlAIl-0003ib-Cy for geh-help-gnu-emacs@m.gmane-mx.org; Thu, 11 Nov 2021 14:39:39 +0100 Original-Received: from localhost ([::1]:45464 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mlAIk-0005HH-1V for geh-help-gnu-emacs@m.gmane-mx.org; Thu, 11 Nov 2021 08:39:38 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:60342) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mlAIP-0005H6-5A for help-gnu-emacs@gnu.org; Thu, 11 Nov 2021 08:39:17 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]:55752) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mlAIM-0000SZ-NC for help-gnu-emacs@gnu.org; Thu, 11 Nov 2021 08:39:16 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1mlAIJ-0003Aq-OY for help-gnu-emacs@gnu.org; Thu, 11 Nov 2021 14:39:11 +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:134484 Archived-At: Gregory Heytings wrote: >> I'd like to read an integer (or something else e.g. >> matching a regex) from a minibuffer. Basically, I'm after >> a version of `read-string', but either allowing only some >> characters, or accepting only input matching some regex >> (possibly both). >> >> How do I do that? One way would be to use >> `read-from-minibuffer' with a suitable keymap, but that >> seems slightly low-level. If that is the way to go, is >> there a good way to set up a keymap so that nothing except >> some specified characters are self-inserting? IOW, is >> `suppress-keymap' the way to go or is there some other way? >> > > Another way: > > (defun restricted-read-from-minibuffer (prompt regexp) > "Read a string matching REGEXP from the minibuffer, prompting with PROMPT." > (let ((s nil)) > (while (progn > (setq s (read-from-minibuffer prompt)) > (unless (string-match regexp s) > (message "Unexpected input.") > (sit-for 1) > t))) > s)) Cool (honestly). But do show how to use that to read an integer and only an integer ... -- underground experts united https://dataswamp.org/~incal