.vimrc

set nocompatible
syntax on
map <Esc> <Nop>
set nu
set mouse=a
execute pathogen#infect()
autocmd vimenter * if !argc() | NERDTree | endif
autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTreeType") && b:NERDTreeType == "primary") | q | endif
"====[ Make the 81st column stand out ]====================

    " OR ELSE just the 81st column of wide lines...
    highlight ColorColumn ctermbg=magenta
    call matchadd('ColorColumn', '\%81v', 100)

"====[ Make tabs, trailing whitespace, and non-breaking spaces visible ]======

    exec "set listchars=tab:\uBB\uBB,trail:\uB7,nbsp:~"
    set list
nnoremap <up> <nop>
nnoremap <down> <nop>
nnoremap <left> <nop>
nnoremap <right> <nop>
inoremap <up> <nop>
inoremap <down> <nop>
inoremap <left> <nop>
inoremap <right> <nop>