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I've been trying to map Ctrl + F8 in several different ways but I just can't get it to work. After I made some researches I found out that vim doesn't support all terminal keycodes and I have to assign the terminal keycode to an empty vim keycode (like F13). I followed this guide step by step without no success.

What i did is:

  1. Find the terminal (URxvt) keycode for Ctrl + F8 using cat. The result is: ^[[19^
  2. Added the following lines to my plugin file:

set <F13>=^[[1;2B nnoremap <F13> :call foobar

Any suggestions?

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[After testing, I have transferred my comment to an answer.]

Your set command is not using the same value as your scancode. Also, you need to be sure you're using an escape character instead of the two characters of ^ and [. To make this easy without "hard coding" an escape character, I would use :execute:

:exe "set <F13>=\e[19^"
:nnoremap <F13> :echo "It works!"<CR>
  • Thank you very much :). Works perfectly fine. However I don't really understand what "\e" means and why ":execute" works and ":set" alone doesn't – Mr. Blue Sep 23 '16 at 22:27
  • Because, for historical reasons, :set cannot have evaluation or string expansion used at all, we get around that with :execute. \e in double quotes is a string escape sequence that becomes a true escape character. – Heptite Sep 23 '16 at 22:29

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