Re: Please confirm this file-name-directory behavior

[Eli Zaretskii <eliz@gnu.org>]

> From: Mirko <mvukovic@nycap.rr.com>
> Date: Mon, 17 Sep 2007 02:46:12 -0000
> 
> Continuing, what is the expected behavior if the argument does not end
> in a slash, like
> 
> (file-name-directory "~/foo/bar/") vs (file-name-directory "~/foo/
> bar")
> 
> On windows, the first  form returns the full argument, while the
> second "~/foo/".  Is that the expected behavior?

Yes.

The ELisp manual says (in the node that describes
file-name-directory):

       On most systems, the directory part is everything up to and including
    the last slash (backslash is also allowed in input on MS-DOS or
    MS-Windows); the nondirectory part is the rest.

So if the file name ends with a slash, it's treated as a directory.