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From: Gregory Heytings <gregory@heytings.org>
To: Marcin Borkowski <mbork@mbork.pl>
Cc: help-gnu-emacs@gnu.org
Subject: Re: How to read an integer from the minibuffer
Date: Thu, 11 Nov 2021 11:17:30 +0000	[thread overview]
Message-ID: <d46f031af8cb28dee665@heytings.org> (raw)
In-Reply-To: <87ee7nqomk.fsf@mbork.pl>


>
> 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))



  parent reply	other threads:[~2021-11-11 11:17 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-11  4:53 How to read an integer from the minibuffer Marcin Borkowski
2021-11-11  5:11 ` Po Lu
2021-11-11  7:18   ` Marcin Borkowski
2021-11-12  7:21     ` Yuri Khan
2021-11-13  6:59       ` Marcin Borkowski
2021-11-13  8:43         ` tomas
2021-11-13  7:33       ` Jean Louis
2021-11-16  6:39         ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-16  7:37           ` Yuri Khan
2021-11-16  8:00             ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-11  6:27 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-11 10:25 ` Gregory Heytings
2021-11-11 10:28   ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-11 11:00     ` Gregory Heytings
2021-11-11 13:20       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-11 11:17 ` Gregory Heytings [this message]
2021-11-11 13:39   ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-11 14:30     ` Gregory Heytings
2021-11-12  0:28       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-12  0:37         ` Gregory Heytings
2021-11-12  0:41           ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-12  0:52             ` Gregory Heytings
2021-11-12  0:57               ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-12 19:05                 ` Jean Louis
2021-11-12 19:25                   ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-12 19:55                     ` Jean Louis
2021-11-12 21:14                       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-13  6:37                         ` Jean Louis
2021-11-16  6:21                           ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-12 19:56                     ` Jean Louis
2021-11-12 20:02                     ` Jean Louis
2021-11-12 20:24                       ` tomas
2021-11-12 21:15                         ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-12 21:30                           ` tomas
2021-11-12 21:34                             ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-13  6:46                           ` Jean Louis
2021-11-13  7:32                             ` tomas
2021-11-16  6:24                             ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-13  6:36                         ` Jean Louis
2021-11-13  8:17                           ` tomas
2021-11-13  8:44                             ` Jean Louis
2021-11-16  6:15                               ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-16  6:03                             ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-12  1:09               ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-12  1:12                 ` Gregory Heytings
2021-11-12  3:07                   ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-12  6:21 ` Marcin Borkowski
2021-11-16  7:52   ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-16  8:05     ` Yuri Khan
2021-11-16  9:38       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-16 11:18         ` Yuri Khan
2021-11-16 11:37           ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-16 11:52             ` Yuri Khan
2021-11-16 12:00               ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-11-16 13:10               ` Emanuel Berg via Users list for the GNU Emacs text editor

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