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I have added this to my .vimrc:
nnoremap <up> <nop>
nnoremap <down> <nop>
nnoremap <left> <nop>
nnoremap <right> <nop>
inoremap <up> <nop>
inoremap <down> <nop>
inoremap <left> <nop>
inoremap <right> <nop>
This works in normal and visual mode, but I can still use arrows in insert mode.
I'm using Janus to set up my vim.
I'm a two-week convert, so my vim foo is limited. Is this a MacVim-related issue? Is Janus' configuration somehow getting in the way?
The first thing to do is to try to determine if your mappings are defined as you expect:
:verbose imap <up>
:verbose imap <down>
...etc.
This will show you what the current insert mode mapping is for your keys, and—if they are somehow being overridden—where they were defined.
