Windows support

[jmbeach]

I'm on Windows and this code works for me. Requires cygwin.

function FixXML()
  "save and run xmllint on our file saving output
  let tempfile = tempname()
  exec "sav! " . tempfile
  let outfile = tempname()
	let command = "C:\\cygwin\\bin\\xmllint.exe --format " . tempfile . " > " . outfile . " && C:\\cygwin\\bin\\echo.exe -n %errorlevel%"
  let result = system(command)
	echo result
  if result == "0" 
		"delete everything
		1,$delete
		"replace it with the result of xmllint
		exec "read ++edit" . outfile
		"delete the blank line at the top
		1,1delete
		redraw!
  else
		let clean_result = substitute(result, tempfile, "Error", 'g')
		echo clean_result
  endif
endfunction