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I am trying to extend evil-like conventions to comint mode so I can use vim-like keybindings from the shell. I also rebound C-c to #'evil-normal-state since that is what I use in vim (it isn't strictly equivalent to C-[ but I haven't run into the weird edge cases where that actually matters yet).

I am using the evil-define-key macro to define comint-mode-specific bindings in normal state that begin with SPC f and so far that works great.

However, all the mode-specifc keybindings beginning with C-c are still there despite the fact that C-c is bound to #'evil-normal-state in every state. I don't want to globally rebind C-c since that would interfere with emacs state.

What is the cleanest way to prevent comint-mode from defining any additional keybindings at all since evil-mode is effectively managing all the keys?

I have tried adding

(setf comint-mode-map (make-keymap))

and

(setf comint-mode-map (make-sparse-keymap))

to my .emacs file, but whenever I type M-x shell, I get the error

Wrong type argument: keymapp, 1
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    Some unsolicited advice: emacs uses the C-c prefix for a huge range of things, so you're going to be cutting yourself off from a lot of functionality (absent a lot of manual rebinding on your part) if you choose to take over C-c in this way. Just about any other key (other than C-x or M-x) would probably be a less hassle-filled long-run choice. – Dan Jan 3 '16 at 20:54
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If that's really what you want to do, do it on comint-mode-hook:

(add-hook 'comint-mode-hook (lambda () (setq comint-mode-map (make-sparse-keymap))))

You are probably getting that error because the comint code itself tries to bind keys on the prefix key C-c, but you have removed that.

  • I tried emacs -Q -l patch-comint-mode-hook.el with that just snippet. Inside the M-x shell-shell the C-c commands are still there. – Gregory Nisbet Jan 3 '16 at 20:42
  • Try doing the same for shell-mode-hook, as well. – Drew Jan 3 '16 at 20:46
  • patching the mode hooks for both comint mode and shell mode does not appear to suppress the keybindings. I used the following as my init file: (add-hook 'comint-mode-hook (lambda () (setq comint-mode-map (make-sparse-keymap)))) (add-hook 'shell-mode-hook (lambda () (setq shell-mode-map (make-sparse-keymap)))) – Gregory Nisbet Jan 3 '16 at 21:19

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