my first vimrc please do not use

" directory listing
let g:netrw_banner = 0
let g:netrw_liststyle = 3
let g:netrw_browse_split = 4
let g:netrw_altv = 1
let g:netrw_winsize = 25

" Toggle Vexplore with Ctrl-E
function! ToggleVExplorer()
  if exists("t:expl_buf_num")
      let expl_win_num = bufwinnr(t:expl_buf_num)
      if expl_win_num != -1
          let cur_win_nr = winnr()
          exec expl_win_num . 'wincmd w'
          close
          exec cur_win_nr . 'wincmd w'
          unlet t:expl_buf_num
      else
          unlet t:expl_buf_num
      endif
  else
      exec '1wincmd w'
      Vexplore
      let t:expl_buf_num = bufnr("%")
  endif
endfunction
map <silent> <C-E> :call ToggleVExplorer()<CR>

"line numbers
set number

"visuals
" https://www.vim.org/scripts/script.php?script_id=4820
colorscheme iceberg
syntax on

"programming (tabs etc)
set tabstop=4
set softtabstop=4
set shiftwidth=4
set noexpandtab