my .vimrc for gvim and (maybe) macvim at home

.vimrc

" no compatible with VI
set nocompatible

" start pathogen
execute pathogen#infect()

" Look and Feel
syntax on
colorscheme Tomorrow-Night
set guifont:Inconsolata\ for\ Powerline:h20
set ruler
set number

" show invisible characters
" set list
"set lcs=trail:·
"set lcs=eol:
" set listchars=tab:·,trail:$,eol:¬,nbsp:_
" show file name at title bar
set title
set showcmd
" Code editing
set tabstop=2
set shiftwidth=2
set smartindent
set autoindent
set backspace=indent,eol,start
set ch=1
set linespace=3
set expandtab
set cursorline

set nobackup
set nowritebackup
set noswapfile

" No empty newlines at the end of lines
set binary
set noeol

set wildmenu
set wildmode=list:longest

" https://github.com/garybernhardt/dotfiles/blob/master/.vimrc
" number of lines to keep from the edge when scrolling 
set scrolloff=5
" fix delay when type `O` (capital o) in normal mode
set timeout timeoutlen=1000 ttimeoutlen=100

" key binding
let mapleader=","
nmap <space> :
imap <leader>e <esc>
imap <leader><tab> <C-x><C-o>
map <leader>c <c-_><c-_>
map <F2> :NERDTreeToggle<CR>
map <leader>t <C-y>,

"automatically source .vimrc after save
if has("autocmd")
    autocmd bufwritepost .vimrc source $MYVIMRC
endif

if has('statusline')
  " Always show status line
  set laststatus=2
  " Broken down into easily includable segments
  " Filename
  set statusline=%<%f
  " Options
  set statusline+=%W%h%m%r
  " Current directory
  set statusline+=\ [%{getcwd()}]
  " Right aligned file nav info
  set statusline+=%=%-14.(%l,%c%c%)\ %p%%

  " Vim Powerline
  " Ubuntu
  " set rtp+=$HOME/.local/lib/python2.7/site-packages/powerline/bindings/vim/
  " OSX 10.8
  set rtp+=~/Library/Python/2.7/lib/python/site-packages/powerline/bindings/vim

endif

"hide menu bar for gvim
if has('gui_running')
  set guioptions-=T  " no toolbar
endif

"enable mouse support in console
set mouse=a

"highlight search results
set hlsearch

"ubuntu
"if $COLORTERM == 'gnome-terminal'
"  set t_Co=256
"endif

"osx
set t_Co=256

let g:neocomplcache_enable_at_startup=1

" tab completion for neocomplcache plugin
inoremap <expr><TAB>  pumvisible() ? "\<C-n>" : "\<TAB>"

" Enable omni completion.
autocmd FileType css setlocal omnifunc=csscomplete#CompleteCSS
autocmd FileType html,markdown setlocal omnifunc=htmlcomplete#CompleteTags
autocmd FileType javascript setlocal omnifunc=javascriptcomplete#CompleteJS
autocmd FileType python setlocal omnifunc=pythoncomplete#Complete
autocmd FileType xml setlocal omnifunc=xmlcomplete#CompleteTags

" Use ctrl-[hjkl] to select the active split!
nmap <silent> <c-k> :wincmd k<CR>
nmap <silent> <c-j> :wincmd j<CR>
nmap <silent> <c-h> :wincmd h<CR>
nmap <silent> <c-l> :wincmd l<CR>

" disable  arrow keys O_O
noremap <left> <nop>
noremap <right> <nop>
noremap <up> <nop>
noremap <down> <nop>%