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From: Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: Madhu <enometh@meer.net>
Cc: eliz@gnu.org, 74208@debbugs.gnu.org
Subject: bug#74208: 31.0.50; minibuffer read-file-name-default mutates global value of default-directory incorrectly
Date: Sun, 10 Nov 2024 11:54:36 -0500	[thread overview]
Message-ID: <jwvv7wvvxr3.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <20241110.123007.483734644166546380.enometh@meer.net> (Madhu's message of "Sun, 10 Nov 2024 12:30:07 +0530 (IST)")

> for the example in the thread,
> ffap.el:(ffap-read-file-or-url) calls read-file-name-default, via
>               (funcall #'read-file-name-default prompt guess guess) =>
>
>   read-file-name-default("Find file or URL: " "http://example.com" "http://example.com")
>
> (read-file-name-default PROMPT &optional DIR DEFAULT-FILENAME
>  MUSTMATCH INITIAL PREDICATE)
>
> The problem is that the parameter DIR == "http://example.com" was
> getting bound to default-directory with undesirable results.

It can also have desirable results sometimes (depends on the URL at point
and what kind of support for URLs you have in your Emacs, admittedly).
Do you happen to have a more realistic scenario than your "echo foo"
that lets us better judge the severity of the problem, and maybe other
ways to solve the actual problem?


        Stefan






  parent reply	other threads:[~2024-11-10 16:54 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-05  2:09 bug#74208: 31.0.50; minibuffer read-file-name-default mutates global value of default-directory incorrectly Madhu
2024-11-09 11:11 ` Eli Zaretskii
2024-11-09 16:11 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-11-10  0:57   ` Madhu
2024-11-10  6:00     ` Eli Zaretskii
2024-11-10  7:00       ` Madhu
2024-11-10 10:00         ` Eli Zaretskii
2024-11-10 10:41           ` Madhu
2024-11-10 10:45             ` Eli Zaretskii
2024-11-10 11:17               ` Madhu
2024-11-10 11:26                 ` Eli Zaretskii
2024-11-10 16:54         ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2024-11-11  2:17           ` Madhu
2024-11-11  3:40             ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-11-23 12:25               ` Eli Zaretskii
2024-11-23 14:56                 ` Madhu
2024-11-24  3:00                 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-11-24  7:19                   ` Eli Zaretskii

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