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 14:20:46 +0100 Message-ID: <8735o2de1d.fsf@zoho.eu> References: <87ee7nqomk.fsf@mbork.pl> <87fss3c7fc.fsf@zoho.eu> 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="10552"; 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:Z50ZFhAq8K2GHachG4bUgi3VHkI= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Thu Nov 11 14:22:40 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 1mlA2K-0002VR-JB for geh-help-gnu-emacs@m.gmane-mx.org; Thu, 11 Nov 2021 14:22:40 +0100 Original-Received: from localhost ([::1]:55852 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mlA2I-0004b6-JM for geh-help-gnu-emacs@m.gmane-mx.org; Thu, 11 Nov 2021 08:22:38 -0500 Original-Received: from eggs.gnu.org ([209.51.188.92]:56258) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mlA0r-0004Wp-M6 for help-gnu-emacs@gnu.org; Thu, 11 Nov 2021 08:21:09 -0500 Original-Received: from ciao.gmane.io ([116.202.254.214]:47414) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mlA0c-0006nz-Iv for help-gnu-emacs@gnu.org; Thu, 11 Nov 2021 08:21:07 -0500 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1mlA0b-000Aav-5o for help-gnu-emacs@gnu.org; Thu, 11 Nov 2021 14:20:53 +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:134483 Archived-At: Gregory Heytings wrote: >>> (defun restricted-read-from-minibuffer (prompt allowed-chars) >>> "Read a string from the minibuffer, prompting with PROMPT. >>> The only allowed characters are those in the string ALLOWED-CHARS." >>> (let ((m (make-keymap))) >>> (define-key m [t] #'ignore) >>> (define-key m (kbd "RET") #'exit-minibuffer) >>> (define-key m (kbd "") #'exit-minibuffer) >>> (define-key m (kbd "C-j") #'exit-minibuffer) >>> (define-key m (kbd "C-g") #'abort-minibuffers) >>> (dolist (c (split-string allowed-chars "" t)) >>> (define-key m c #'self-insert-command)) >>> (read-from-minibuffer prompt nil m))) >> >> (read-number "try input a string instead: ") > > (read-number "Try input a time in hh:mm format: ") `read-number' doesn't disallow any input, it checks after. (unless (numberp n) (message "Please enter a number.") ; ... /usr/local/share/emacs/29.0.50/lisp/subr.el lines 2873-2874 -- underground experts united https://dataswamp.org/~incal