[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: How to read an integer from the minibuffer
From: |
Emanuel Berg |
Subject: |
Re: How to read an integer from the minibuffer |
Date: |
Thu, 11 Nov 2021 14:20:46 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) |
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 "<return>") #'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
Re: How to read an integer from the minibuffer, Emanuel Berg, 2021/11/11
Re: How to read an integer from the minibuffer, Gregory Heytings, 2021/11/11
Re: How to read an integer from the minibuffer, Gregory Heytings, 2021/11/11
- Re: How to read an integer from the minibuffer, Emanuel Berg, 2021/11/11
- Re: How to read an integer from the minibuffer, Gregory Heytings, 2021/11/11
- Re: How to read an integer from the minibuffer, Emanuel Berg, 2021/11/11
- Re: How to read an integer from the minibuffer, Gregory Heytings, 2021/11/11
- Re: How to read an integer from the minibuffer, Emanuel Berg, 2021/11/11
- Re: How to read an integer from the minibuffer, Gregory Heytings, 2021/11/11
- Re: How to read an integer from the minibuffer, Emanuel Berg, 2021/11/11
- Re: How to read an integer from the minibuffer, Jean Louis, 2021/11/12
- Re: How to read an integer from the minibuffer, Emanuel Berg, 2021/11/12