From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Gregory Heytings Newsgroups: gmane.emacs.help Subject: Re: How to read an integer from the minibuffer Date: Thu, 11 Nov 2021 11:17:30 +0000 Message-ID: References: <87ee7nqomk.fsf@mbork.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="37634"; mail-complaints-to="usenet@ciao.gmane.io" Cc: help-gnu-emacs@gnu.org To: Marcin Borkowski Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Thu Nov 11 12:27:16 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 1ml8Ed-0009XL-4B for geh-help-gnu-emacs@m.gmane-mx.org; Thu, 11 Nov 2021 12:27:15 +0100 Original-Received: from localhost ([::1]:41754 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ml8Ec-00010O-19 for geh-help-gnu-emacs@m.gmane-mx.org; Thu, 11 Nov 2021 06:27:14 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:54338) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ml85I-0005as-8i for help-gnu-emacs@gnu.org; Thu, 11 Nov 2021 06:17:37 -0500 Original-Received: from heytings.org ([95.142.160.155]:34176) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ml85E-0003CU-Uz for help-gnu-emacs@gnu.org; Thu, 11 Nov 2021 06:17:35 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=heytings.org; s=20210101; t=1636629451; bh=eKt8MgmHtt4MSdIF/XeFjZTZ9Um16fk22hdomG/wgcE=; h=Date:From:To:cc:Subject:In-Reply-To:Message-ID:References:From; b=TxAo1TjCh5hYNlAFNUUs751b4gSCuE/rns4Kht0Jy3wglQZZVJabXY/zxhlLwCtPH HSLM3QqiF6MRIkjWjzl/Uho2tzkOFSxYIDpz6Kad55/io02/iPuquKB6n1FQnodRvJ qPnG8/gJGjpgCPMIuNpdgI4o2i66h4hQMVmuRWFc/OtKDF+3LBuTR3e9zPRZAOAnuS 4GtskXbIUKA25M8It+PGDRHorOZCy+9TEywd2gF6zE3HijPpv6P7kDfSyw9y86QyeH 5cRG8sSfv3tQH0B+S3Ox8wl7uGA7fl8T8iKEcCoOR1j4pMMwtXQDcyDu7eSmetpcDd futlr97/uhP4w== In-Reply-To: <87ee7nqomk.fsf@mbork.pl> Received-SPF: pass client-ip=95.142.160.155; envelope-from=gregory@heytings.org; helo=heytings.org X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, 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" Xref: news.gmane.io gmane.emacs.help:134481 Archived-At: > > 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))