"auto_window_settings {{{
function! WinEnterColorColumn() abort"{{{
  if &buftype != ''
    setlocal colorcolumn=0
  elseif exists('b:colorcolumn_restore')
    execute 'setlocal colorcolumn=' . b:colorcolumn_restore
  endif
endfunction

"}}}
function! WinLeaveColorColumn() abort"{{{
  let b:colorcolumn_restore = &colorcolumn
  setlocal colorcolumn=0
endfunction

"}}}
augroup auto_window_settings "{{{
  autocmd!
  autocmd WinEnter * call WinEnterColorColumn()
  autocmd WinEnter * set cursorline | set cursorcolumn
  " autocmd WinLeave * setlocal colorcolumn=0
  autocmd WinLeave * call WinLeaveColorColumn()
  autocmd WinLeave * set nocursorline | set nocursorcolumn
augroup END
"}}} augroup auto_window_settings
"  }}} auto_window_settings