[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: Changing buffer mode
From: |
Emanuel Berg |
Subject: |
Re: Changing buffer mode |
Date: |
Fri, 22 Jul 2022 02:21:45 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) |
carlmarcos--- via Users list for the GNU Emacs text editor wrote:
>>>>> With the following function I can change the mode of
>>>>> a buffer. I would like to change it to use
>>>>> `completing-read` using a list composed of a selection
>>>>> of mode names. How can I go about doing that?
>>>>
>>>> Use it?
>>>>
>>>> (completing-read "drop: " '(little boy fat man))
>>>
>>> Yes, but then how can I update the buffer with the
>>> new mode?
>>
>> The same way you always do it?
>
> I do not know the usual way.
(emacs-lisp-mode) from Lisp and M-x emacs-lisp-mode RET
interactively ...
Anyway some code for you ... try the examples, last.
;;; -*- lexical-binding: t -*-
;;
;; this file:
;; https://dataswamp.org/~incal/emacs-init/set-mode.el
(defun mode-p (fun)
(let*((sfx "-mode")
(len (length sfx) ))
(and (functionp fun)
(string= sfx (substring (symbol-name fun) (- len))) )))
(defun set-mode (&optional fun)
(interactive
(list (completing-read
"mode: "
obarray
(lambda (e) (mode-p e))
t
nil
nil
(symbol-name #'normal-mode)
)) )
(if fun
(let ((f (if (stringp fun)
(intern fun)
fun) ))
(when (mode-p f)
(apply (list f)) ))
(normal-mode) ))
;; (set-mode #'kill-emacs) ; safe as not a mode
;; (set-mode #'fundamental-mode) ; function
;; (set-mode "emacs-lisp-mode") ; function name
;; (set-mode) ; derive mode from extention/hashbang
;; M-x set-mode RET conf-mode RET ; interactive explicit
;; M-x set-mode RET RET ; ditto implicit
--
underground experts united
https://dataswamp.org/~incal
- Changing buffer mode, carlmarcos, 2022/07/19
- Re: Changing buffer mode, Emanuel Berg, 2022/07/20
- Re: Changing buffer mode, carlmarcos, 2022/07/21
- Re: Changing buffer mode,
Emanuel Berg <=
- Re: Changing buffer mode, carlmarcos, 2022/07/21
- Re: Changing buffer mode, carlmarcos, 2022/07/22
- Re: Changing buffer mode, Emanuel Berg, 2022/07/22
- Re: Changing buffer mode, carlmarcos, 2022/07/22
- Re: Changing buffer mode, Emanuel Berg, 2022/07/22
- Re: Changing buffer mode, carlmarcos, 2022/07/22
Re: Changing buffer mode, Jean Louis, 2022/07/21