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From: Bruno Barbier <brubar.cs@gmail.com>
To: Jean Louis <bugs@gnu.support>
Cc: Edgar Vincent <e-v@posteo.net>, eliz@gnu.org, help-gnu-emacs@gnu.org
Subject: Re: Why does (file-exists-p "") return t?
Date: Sat, 11 Feb 2023 20:34:38 +0100	[thread overview]
Message-ID: <63e7edd1.050a0220.9a8d6.6c91@mx.google.com> (raw)
In-Reply-To: <Y+d79xn1QEojXjGy@protected.localdomain>

Jean Louis <bugs@gnu.support> writes:

> * Bruno Barbier <brubar.cs@gmail.com> [2023-02-11 13:10]:
>> > As otherwise you may check the wrong path.
>> 
>> Why ?
>> 
>> One of the first thing `file-exists-p' is doing is to call
>> `expand-file-name' to expand the file name.  I don't see how calling
>> `expand-file-name' before would help.
>
> I understand you and I am sure in most use cases it is not necessary
> as it will be expanded later. 

>
> Sometimes I wish to expand it before for reason that
> `default-directory' sometimes changes:

IIUC, you are saying that it may be better to expand immediately and to
use the expanded version, to not risk the file to be expanded later,
possibly in a wrong/unknown context.

Very good point, indeed.

Thanks for the explanation and the advice, Jean.

Bruno



  reply	other threads:[~2023-02-11 19:34 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-09 10:41 Why does (file-exists-p "") return t? Edgar Vincent
2023-02-09 10:56 ` Gregory Heytings
2023-02-09 11:10   ` Edgar Vincent
2023-02-09 13:36     ` Eli Zaretskii
2023-02-09 21:05       ` Edgar Vincent
2023-02-10  4:20         ` Jean Louis
2023-02-11 10:10           ` Bruno Barbier
2023-02-11 11:28             ` Jean Louis
2023-02-11 19:34               ` Bruno Barbier [this message]
2023-02-11 10:39           ` Eli Zaretskii

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