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I am using zsh, urxvt, tmux and in there vim. I am not 100% sure who causes the effect but I would like to bind something to ctrl and m but not to carriage return in vim. Does somebody how this is done?

Thank you very much in advance!

  • I think you might want to read this vi.stackexchange.com/q/7722/1841 – statox Nov 30 '17 at 14:15
  • nope, does not help me, because when I unmap carriage return, I unmap c-m and vise versa I want to find a way to separate these both (if it is possible - should be when they send two different keycodes), when I map ctrl-m and unbind carriage return i unmap ctrl-m again... – baxbear Nov 30 '17 at 14:24
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As far as Vim is concerned, <C-M> and <CR> are the same thing: they are represented in the same way internally.

If your terminal is truly sending different keycodes (mine doesn't) for when you press Ctrl-M vs Enter, then you might be able to map them separately by using their literal values when you set up the mappings.

Replace the following in your vimrc/Vimscript:

nnoremap <CR> [keypresses]
nnoremap <C-M> [other keypresses]

With the following,

nnoremap [actual ctrl-m keycode] [keypresses]
nnoremap [actual CR keycode] [other keypresses]

Where you enter the keycodes by pressing Ctrl-VCtrl-M and Ctrl-VEnter, respectively.

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