" highlight matching brackets
set showmatch

" status line: show line/column and current mode
set ruler
set showmode

" required to be able to use keypad keys and map missed escape sequences
set esckeys

" be user-friendly instead of compatible
set nocompatible

" backspace shall remove anything in insert mode
set backspace=indent,eol,start

" keys in insert mode
map! <Esc>OA <Up>
map! <Esc>OB <Down>
map! <Esc>OC <Right>
map! <Esc>OD <Left>
map! <Esc>OH <Home>
map! <Esc>OF <End>
map! <Esc>[5~ <PageUp>
map! <Esc>[6~ <PageDown>
map!  <BS>

" keys in command mode
map  X