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From: Michael Albinus <michael.albinus@gmx.de>
To: Evgeny Zajcev <lg.zevlg@gmail.com>
Cc: emacs-devel <emacs-devel@gnu.org>
Subject: Re: file-exists-p on empty string
Date: Wed, 27 Feb 2019 15:15:25 +0100	[thread overview]
Message-ID: <87pnrde2rm.fsf@gmx.de> (raw)
In-Reply-To: <CAO=W_ZoyVv+WPfX2zeDjWXf16EJ=XpFbkQhqH8j5JSWZof80Dg@mail.gmail.com> (Evgeny Zajcev's message of "Wed, 27 Feb 2019 15:29:53 +0300")

Evgeny Zajcev <lg.zevlg@gmail.com> writes:

Hi Evgeny,

> It was quite surprising for me that
>
>   (file-exists-p "")
>   ==> t
>
> I thought that `file-exists-p` resembles stat, such as
>   
>   $ stat ""
>   No such file or directory
>
> This is because `file-exists-p` uses `expand-file-name`, which returns
> current directory for empty string
>
> Would not it be more correct for `file-exists-p` to return `nil` for
> empty string, and if someone wants current directory he will use "."
> as filename?

I believe the current behavior is correct. file-exists-p calls
expand-file-name, and (expand-file-name "") returns always
default-directory.

> Thanks

Best regards, Michael.



  reply	other threads:[~2019-02-27 14:15 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-27 12:29 file-exists-p on empty string Evgeny Zajcev
2019-02-27 14:15 ` Michael Albinus [this message]
2019-02-27 15:29   ` Troy Hinckley
2019-02-27 15:43   ` Robert Pluim
2019-02-27 16:01     ` Michael Albinus
2019-02-27 16:55       ` Eli Zaretskii
2019-02-27 18:09         ` Michael Albinus
2019-02-27 16:11     ` Eli Zaretskii
2019-02-27 16:16       ` Robert Pluim
2019-02-27 16:30     ` Andreas Schwab
2019-02-27 19:40     ` lg.zevlg
2019-02-27 15:53 ` Stefan Monnier
2019-02-27 16:00   ` Robert Pluim
2019-02-27 16:15     ` Stefan Monnier
2019-02-27 16:09 ` Eli Zaretskii
2019-02-27 18:42   ` lg.zevlg
2019-02-27 18:46     ` Eli Zaretskii
2019-02-27 19:04       ` lg.zevlg
2019-02-27 19:16         ` Eli Zaretskii
2019-02-27 19:29           ` lg.zevlg
2019-02-27 19:30         ` Stefan Monnier
  -- strict thread matches above, loose matches on Subject: below --
2019-02-27 20:07 lg.zevlg
2019-02-27 21:18 ` Stefan Monnier
2019-02-27 22:01   ` Drew Adams
2019-02-28  3:24     ` Stefan Monnier
2019-03-06  9:51   ` Michael Albinus
2019-03-08  6:11     ` Stefan Monnier
2019-03-09  8:48       ` Michael Albinus
2019-02-27 22:09 lg.zevlg
2019-02-27 22:23 ` Drew Adams
2019-02-27 22:41   ` Evgeny Zajcev
2019-02-27 23:23     ` Drew Adams
2019-02-28  0:08       ` Evgeny Zajcev
2019-02-28  1:16     ` Stefan Monnier

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