Emacs: Change Key Priority of Minor Modes

This page shows you how to change minor modes's key priority. [see Emacs: What is Minor Mode]

minor-mode-map-alist

Minor mode's keys priority depends on the variable minor-mode-map-alist .

minor-mode-map-alist is a association list. [see Emacs Lisp: Association List]

Each element of minor-mode-map-alist is a cons pair, of the form

(cons 'minor_mode_x_var minor_mode_x_keymap)

The minor_mode_x_var is a variable of the same name of the command to toggle the minor mode, and has value of t or nil. (all minor modes have this variable)

The minor_mode_x_keymap is a keymap for that minor mode. (keymap is basically a list, used for keybinding. (info "(elisp) Format of Keymaps") )

Each minor_mode_x_var may have value true or false. When true, it means the corresponding keymap is active.

Emacs goes thru the active one in minor-mode-map-alist, the front ones has priority.

Note: emacs has other mechanisms about priority of keys.

• keymap embedded as text properties has priority. [see Emacs Lisp: Text Properties]
• emulation-mode-map-alists
• minor-mode-map-alist

(info "(elisp) Controlling Active Maps")

Show Minor Mode Key Priority

You can use this command to show minor mode key priority.

(defun xah-display-minor-mode-key-priority  ()
  "Print out minor mode's key priority.
URL `http://xahlee.info/emacs/emacs/minor_mode_key_priority.html'
Version 2017-01-27"
  (interactive)
  (mapc
   (lambda (x) (prin1 (car x)) (terpri))
   minor-mode-map-alist))

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