syntax on

set clipboard=unnamed
set smartindent
set shiftwidth=2
set tabstop=2
set expandtab
set number
set autoread

let g:powerline_pycmd="py3"
let NERDTreeShowHidden=1
let g:NERDTreeDirArrowExpandable = '▸'
let g:NERDTreeDirArrowCollapsible = '▾'

filetype indent on

:nmap <c-s> :w<CR>
:imap <c-s> <Esc>:w<CR>a
nnoremap <F7> :tabp<CR>
nnoremap <F8> :tabn<CR>
nnoremap <F9> :bp<CR>
nnoremap <F10> :bn<CR>
map <C-n> :NERDTreeToggle<CR>

au BufWinEnter * set number
autocmd StdinReadPre * let s:std_in=1
autocmd VimEnter * if argc() == 0 && !exists("s:std_in") | NERDTree | endif