if !exists("autocommands_loaded")
	let autocommands_loaded = 1
	augroup filetypedetect
		au!	BufRead,BufNewFile	cupsd.conf	setfiletype apache
	augroup END
	augroup C
		autocmd BufRead *.c set cindent
	augroup END
endif
syntax on
set tabstop=4
set shiftwidth=4
" set fileencodings=ucs-bom,utf-8,latin1

function! MM()
	" such a line must be within the last 5 lines of a file
	" use ':call MM()' to call it
	call append(line('$'), '# vim' . ': ts=' . &ts . ' sw=' . &sw . ' filetype=' . &filetype)
endfunction

function ToggleHex()
	" save current mode
	let l:modified=&mod
	let l:oldreadonly=&readonly
	let &readonly=0
	let l:oldmodifiable=&modifiable
	let &modifiable=1

	if !exists("b:editHex") || !b:editHex
		" save old ed-mode
		let b:oldft=&filetype
		let b:oldbin=&binary
		" switch to bin ed-mod
		setlocal binary
		let &ft="xxd"
		let b:editHex=1
		%!xxd
	else
		" restore
		let &filetype=b:oldft
		if !b:oldbin
			setlocal nobinary
		endif
		let b:editHex=0
		%!xxd -r
	endif
	let &mod=l:modified
	let &readonly=l:oldreadonly
	let &modifiable=l:oldmodifiable
endfunction
command! -bar Hexmode call ToggleHex()

" different encoding:
" http://vimdoc.sourceforge.net/htmldoc/editing.html#++enc

" Sometimes vim does not sync: see
" http://vim.wikia.com/wiki/Fix_syntax_highlighting
" To check use:  :syntax sync
" and see: :help :syn-sync
" to get rid off it use the bummer:  :syntax sync fromstart
" or a little bit more moderate: :syntax sync maxlines=500