set number
set nowrap
set cursorline
set showmatch
set visualbell
set t_vb=
set mouse=a 

set hlsearch
set smartcase
set incsearch
set showmode
 
set ruler 
set autoindent
set shiftwidth=4
set softtabstop=4
 
set undolevels=1000
set backspace=indent,eol,start
colo desert
set laststatus=2
let g:currentmode={
    \ 'n'      : 'NORMAL ',
    \ 'no'     : 'N·Operator Pending ',
    \ 'v'      : 'Visual ',
    \ 'V'      : 'V·Line ',
    \ '\<C-V>' : 'V·Block ',
    \ 's'      : 'Select ',
    \ 'S'      : 'S·Line ',
    \ '\<C-S>' : 'S·Block ',
    \ 'i'      : 'INSERT ',
    \ 'o'      : 'INSERT ',
    \ 'R'      : 'R ',
    \ 'Rv'     : 'V·Replace ',
    \ 'c'      : 'Command ',
    \ 'cv'     : 'Vim Ex ',
    \ 'ce'     : 'Ex ',
    \ 'r'      : 'Prompt ',
    \ 'rm'     : 'More ',
    \ 'r?'     : 'Confirm ',
    \ '!'      : 'Shell ',
    \ 't'      : 'Terminal '
    \}

" Automatically change the statusline color depending on mode
function! ChangeStatuslineColor()
  if (mode() =~# '\v(n|no)')
    exe 'hi! StatusLine ctermfg=008'
  elseif (mode() =~# '\v(v|V)' || g:currentmode[mode()] ==# 'V·Block' || get(g:currentmode, mode(), '') ==# 't')
    exe 'hi! StatusLine ctermfg=005'
  elseif (g:currentmode[mode()] ==# 'INSERT')
    exe 'hi! StatusLine ctermfg=004'
  else
    exe 'hi! StatusLine ctermfg=006'
  endif

  return ''
endfunction

" Find out current buffer's size and output it.
function! FileSize()
  let bytes = getfsize(expand('%:p'))
  if (bytes >= 1024)
    let kbytes = bytes / 1024
  endif
  if (exists('kbytes') && kbytes >= 1000)
    let mbytes = kbytes / 1000
  endif

  if bytes <= 0
    return '0'
  endif

  if (exists('mbytes'))
    return mbytes . 'MB '
  elseif (exists('kbytes'))
    return kbytes . 'KB '
  else
    return bytes . 'B '
  endif
endfunction

function! ReadOnly()
  if &readonly || !&modifiable
    return ''
  else
    return ''
endfunction


set laststatus=2
set statusline=
set statusline+=%{ChangeStatuslineColor()}
set statusline+=%0*\ %{toupper(g:currentmode[mode()])}
set statusline+=%8*\ %<%F\ %{ReadOnly()}\ %m\ %w\        " File+path
set statusline+=%*
set statusline+=%8*\ %y\                                 " FileType
set statusline+=%7*\ %{(&fenc!=''?&fenc:&enc)}\[%{&ff}]\ " Encoding & Fileformat
set statusline+=%8*\ %-3(%{FileSize()}%)                 " File size
set statusline+=%0*\ %3p%%\ \ %l:\ %3c\                 " Rownumber/total (%)

hi User1 ctermfg=007
hi User2 ctermfg=008
hi User3 ctermfg=008
hi User4 ctermfg=008
hi User5 ctermfg=008
hi User7 ctermfg=008
hi User8 ctermfg=008
hi User9 ctermfg=007