[Haskell-cafe] Cross platform method for getting the /actual/ contents of a directory

Hello, I'm writing a function to find out if a given directory is empty.  I came up with the obvious: do{  contents <-  getDirectoryContents "/home/timothy/works/current/anonGraph/ empty/" ;  let   realContents     =   filter    (\file ->      case file of        "." -> False ;        ".." -> False ;        _ -> True)    contents  in  return $   case realContents of    [] -> True ;    _ -> False} And this works fine on linux, but I wonder.  On other systems, is "." and ". ." allowed as file names?  Couldn't a windows user actually end up with a file name named "." and this method would fail? Thank you Timothy