_vimrc

" Use Vim settings, rather than Vi settings (much better!).
" This must be first, because it changes other options as a side effect.
" Avoid side effects when it was already reset.
set nocompatible

" From VIM as a workaround in case
" When the +eval feature is missing, the set command above will be skipped.
" Use a trick to reset compatible only when the +eval feature is missing.
silent! while 0
  set nocompatible
silent! endwhile

" keep 200 lines of command line history
set history=200

" show the cursor position all the time
set ruler

" display incomplete commands
set showcmd

" display completion matches in a status line
set wildmenu

" time out for key codes
set ttimeout

" wait up to 100ms after Esc for special key
set ttimeoutlen=100

" Show @@@ in the last line if it is truncated.
set display=truncate

" Show a few lines of context around the cursor.  Note that this makes the
" text scroll if you mouse-click near the start or end of the window.
set scrolloff=5

" Do incremental searching when it's possible to timeout.
if has('reltime')
  set incsearch
endif

" Do not recognize octal numbers for Ctrl-A and Ctrl-X, most users find it
" confusing.
set nrformats-=octal

" CTRL-U in insert mode deletes a lot.  Use CTRL-G u to first break undo,
" so that you can undo CTRL-U after inserting a line break.
" Revert with ":iunmap <C-U>".
inoremap <C-U> <C-G>u<C-U>

" In many terminal emulators the mouse works just fine.  By enabling it you
" can position the cursor, Visually select and scroll with the mouse.
" Only xterm can grab the mouse events when using the shift key, for other
" terminals use ":", select text and press Esc.
if has('mouse')
  if &term =~ 'xterm'
    set mouse=a
  else
    set mouse=nvi
  endif
endif

" Turn on windows behavior for editors
source $VIMRUNTIME/mswin.vim
behave mswin

" Set the default syntax highlighting color scheme
colorscheme koehler

" Adam's settings
set tabstop=4
set softtabstop=4
set shiftwidth=4
set expandtab
set ruler
set nobackup
set nowritebackup
syntax on
filetype on

" Show line numbers
set number

" Set .drl drools files to be recognized as javascript
au BufNewFile,BufRead *.drl set filetype=javascript

" Methodology for diff in editor
set diffexpr=MyDiff()
function MyDiff()
  let opt = '-a --binary '
  if &diffopt =~ 'icase' | let opt = opt . '-i ' | endif
  if &diffopt =~ 'iwhite' | let opt = opt . '-b ' | endif
  let arg1 = v:fname_in
  if arg1 =~ ' ' | let arg1 = '"' . arg1 . '"' | endif
  let arg2 = v:fname_new
  if arg2 =~ ' ' | let arg2 = '"' . arg2 . '"' | endif
  let arg3 = v:fname_out
  if arg3 =~ ' ' | let arg3 = '"' . arg3 . '"' | endif
  let eq = ''
  if $VIMRUNTIME =~ ' '
    if &sh =~ '\<cmd'
      let cmd = '""' . $VIMRUNTIME . '\diff"'
      let eq = '"'
    else
      let cmd = substitute($VIMRUNTIME, ' ', '" ', '') . '\diff"'
    endif
  else
    let cmd = $VIMRUNTIME . '\diff'
  endif
  silent execute '!' . cmd . ' ' . opt . arg1 . ' ' . arg2 . ' > ' . arg3 . eq
endfunction