Saturday, November 18, 2006

Arrow keys on the macbook pro

I used to have this exact problem when I used Linux on a Thinkpad several years ago. Try to use vim from the console, and the arrow keys simply don't work. There are a couple solutions to this problem, from what I understand, but I like this one b/c its simple and easy to apply on the fly whatever kind of terminal you find yourself in front of.

  1. Lookup the key you want to override - :help terminal-options
  2. Then type "set ~option~=~Control V~~press the key that doesn't work~"
  3. The key is now overriden. To make it permanent, copy the command into your .vimrc (use : to view a buffer of all ex commands for easy copy/pasting).

This might sound a little complicated. Its not. Here is an example. Say that the 'up' arrow key doesn't do anything when you are in vim. No problem.

  1. Type :help terminal-options --- Aha, I see a table and in that table it says that 't_ku' is the 'arrow up' key.
  2. Type :set t_ku=~Ctrl-V~~up~ (where everything between ~s are the control V and then pushing the up key).
  3. Tada, the up arrow key now works correctly.

3 comments:

Phil Test said...

what do you use arrow keys for in vim?

DeeSumm said...

Funny! Good question. Just ex mode stuff.

Todd Johnson said...

Thanks a ton!

:set t_ku=^[OA
:set t_kd=^[OB
:set t_kr=^[OC
:set t_kl=^[OD

in my ~/.vimrc lets me use the arrow keys in insert mode now!