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Is there any function do disable all the minor modes if I enable a specific major mode (let's take the text-mode as an example)?

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  • Enabling a major mode normally begins by disabling all buffer-local minor modes. So please be more specific.
    – Stefan
    Commented Jun 25, 2018 at 20:34
  • 2
    I am guessing that you only want to disable the buffer-local minor modes (and not the global minor modes). To my knowledge Emacs does not provide a convenient way to identify an active mode as either buffer-local or global, but you could likely use (buffer-local-variables &optional BUFFER) and check each of the minor-mode-list values against that list. Note that globalized modes act in after-change-major-mode-hook so you can't simply disable minor modes in the major mode hook, as that will be too early.
    – phils
    Commented Jun 25, 2018 at 20:59

1 Answer 1

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You can use a function like this:

(defun disable-all-minor-modes ()
  (interactive)
  (mapc
   (lambda (mode-symbol)
     (when (functionp mode-symbol)
       ;; some symbols are functions which aren't normal mode functions
       (ignore-errors 
         (funcall mode-symbol -1))))
   minor-mode-list))

Note that this will probably disable more functionality than you think.

If you want to disable minor modes when you in a specific mode, you can just hook this function like this:

(add-hook 'lisp-mode-hook #'disable-all-minor-modes)

Simply replace lisp-mode with the major mode you want to use, and keep in mind that this will run in derived major modes as well.

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  • 4
    Disabling modes in the major mode hook is too early. Globalized minor modes enable their buffer-local mode in after-change-major-mode-hook, which runs later. You can instead use the major mode hook to (add-hook 'after-change-major-mode-hook 'FUNC :append :local)
    – phils
    Commented Jun 25, 2018 at 21:00
  • I haven't thought about that. Thanks, @phils.
    – user12563
    Commented Jun 26, 2018 at 16:12
  • This function can disable some modes globally.
    – HappyFace
    Commented Mar 13, 2022 at 13:36

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