GNU bug report logs - #43375
26.1: file-directory-p returns t for empty string

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Package: emacs;

Reported by: Boruch Baum <boruch_baum <at> gmx.com>

Date: Sun, 13 Sep 2020 12:48:02 UTC

Severity: minor

Tags: fixed

Found in version 26.1

Fixed in version 28.1

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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From: Boruch Baum <boruch_baum <at> gmx.com>
To: Andreas Schwab <schwab <at> linux-m68k.org>
Cc: 43375 <at> debbugs.gnu.org
Subject: bug#43375: 26.1: file-directory-p returns t for empty string
Date: Sun, 13 Sep 2020 10:39:43 -0400

On 2020-09-13 15:06, Andreas Schwab wrote:
> On Sep 13 2020, Boruch Baum wrote:
>
> > I was expecting the follow to return nil, but it returns t
> >
> >   (file-directory-p "")
>
> This is not a bug, as Emacs always works with expanded and canonicalized
> file names (the result of applying expand-file-name).

Then the docstring could be clearer and say "Return t if the expansion
of FILENAME names an existing directory" instead of simply the current
"Return t if FILENAME names an existing directory". Would that be an
acceptable change?

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This bug report was last modified 4 years and 249 days ago.

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