Received: (at 79528) by debbugs.gnu.org; 20 Oct 2025 11:26:35 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Oct 20 07:26:35 2025 Received: from localhost ([127.0.0.1]:44286 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1vAo26-0008WV-Qz for submit <at> debbugs.gnu.org; Mon, 20 Oct 2025 07:26:35 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:58500) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1vAo24-0008WD-Ez for 79528 <at> debbugs.gnu.org; Mon, 20 Oct 2025 07:26:33 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1vAo1w-0007uX-JF; Mon, 20 Oct 2025 07:26:25 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From: Date; bh=6ZXOb5K+sFk17cdUqC4hQY6yogxhS62Clv1+XRvQFco=; b=QevMJ/KPSND4dgcWTY/M Hvmteqilly6q1oojfzmf/F/C2QheJj2iC/UlYvt9bWNrZlBPEUYBIwZBomm0hrE8qoxrNIRh7446p eejVbQ8U2w+xYKMa6HYVe/q1xj2reOYzC/9uEUvSsUVAfjf1QKIEoN21RTJ5ewyxU5epxjWR1Kodw lYVGZWGThQ4JW5JY6/N8oz26v82MXYr0wX4Y6Jd4d67Ia10Q94owFsJt5Y4+Sruwr5y/Az7Xjv9Vh kpKVEOXF2PvaNIEh5Q3v4JmRoJMDnH4sZF58BTUUi8QJzaX7VNnojc/orMip5RParIjlXvHP9LizU brU1PQ8gPQjyCA==; Date: Mon, 20 Oct 2025 14:25:48 +0300 Message-Id: <86tsztyfur.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Stephen Berman <stephen.berman@HIDDEN> In-Reply-To: <87ikgaigha.fsf@HIDDEN> (message from Stephen Berman on Mon, 20 Oct 2025 02:06:41 +0200) Subject: Re: bug#79528: 30.1; dired errors while handling file names embedding newlines References: <E1v2o26-0000000BTsr-2GVJ@HIDDEN> <87seg6uc71.fsf@HIDDEN> <E1v2oOc-0000000BV25-1pHC@HIDDEN> <87o6quu9tu.fsf@HIDDEN> <86cy73f4ys.fsf@HIDDEN> <87v7kl4qzh.fsf@HIDDEN> <868qhh5x42.fsf@HIDDEN> <87cy6qkeke.fsf@HIDDEN> <861pn64xlz.fsf@HIDDEN> <87jz0x7f7z.fsf@HIDDEN> <86bjm936yu.fsf@HIDDEN> <87sefilulw.fsf@HIDDEN> <86ecr2gj51.fsf@HIDDEN> <87sefg2kml.fsf@HIDDEN> <86ms5o15i8.fsf@HIDDEN> <87ms5nhxr8.fsf@HIDDEN> <86frbfyq8g.fsf@HIDDEN> <87ikgaigha.fsf@HIDDEN> MIME-version: 1.0 Content-type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 79528 Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > From: Stephen Berman <stephen.berman@HIDDEN> > Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org > Date: Mon, 20 Oct 2025 02:06:41 +0200 > > On Sun, 19 Oct 2025 16:29:19 +0300 Eli Zaretskii <eliz@HIDDEN> wrote: > > >> From: Stephen Berman <stephen.berman@HIDDEN> > >> Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org > >> Date: Sun, 19 Oct 2025 14:38:51 +0200 > >> > >> On Sat, 18 Oct 2025 20:31:11 +0300 Eli Zaretskii <eliz@HIDDEN> wrote: > >> > >> > If you use setopt there, won't a subsequent "C-h v" that the variable > >> > was changed outside of Customize? > >> > >> Yes, of course (assuming you meant `M-x customize-option'), but is that > >> a problem? > > > > It is known to confuse users. > > Documenting it in the Emacs manual could help to allay the confusion. > If you agree, I can prepare a patch. I don't mind documenting it, but very much doubt it will remove the confusion. Users are unlikely to hit the manual when Emacs tells them a user option was changed "outside of Customize" without their knowledge. > > The primary use of setopt is by users, either interactively or in > > their init files. Programs aren't supposed to do that. > > Ok, I think I finally understand your objection now. I had been > thinking that since the buttonized text in the warning is what the user > can type in the minibuffer to change the display of newlines in file > names, then it's ok to use the same `setopt' call in the button's > callback function. But since the callback isn't directly executed by > the user, it should not use `setopt', right? So now I've implemented > the callback as follows, using some code from `dired--toggle-b-switch': > > (buttonize "M-: (setopt dired-auto-toggle-b-switch t)" > (lambda (_) > (pop-to-buffer dir) > (when (dired--filename-with-newline-p) > (unless (dired-switches-escape-p dired-actual-switches) > (setq dired-actual-switches > (concat dired-actual-switches " -b")) > (dired-revert)))) > nil "mouse-2: Change newline display") > > This does not touch the user option `dired-auto-toggle-b-switch', so if > you call `customize-option' on it after pressing the button, the > Customize buffer will show the default value and STANDARD state. But > consequently, the change in the newline display affects only the current > Dired buffer, whereas setopting `dired-auto-toggle-b-switch' to t > affects all Dired buffers. I've adjusted the warning text to reflect > this difference: > > ⛔ Warning (dired): Literal newline in file name. > This Dired buffer displays a file name containing a literal newline > character. Executing Dired operations on files displayed this way may > fail and signal an error. To avoid this you can temporarily change the > display for all Dired buffers, so that newlines in file names appear as > "\n", by entering ‘M-: (setopt dired-auto-toggle-b-switch t)’ > in the minibuffer (or just for this Dired buffer by clicking or > pressing RETURN on the highlighted text). > See ‘(emacs) Dired Enter’ for other alternatives and more information. > > Are these changes acceptable? Yes, thanks.
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#79528: 30.1; dired errors while handling file names
embedding newlines
In-Reply-To: <86frbfyq8g.fsf@HIDDEN>
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Content preview: On Sun, 19 Oct 2025 16:29:19 +0300 Eli Zaretskii wrote: >>
From: Stephen Berman >> Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org >> Date:
Sun, 19 Oct 2025 14:38:51 +0200 >> >> On Sat, 18 Oct 2025 20:31:11 +0300
Eli Zaretskii wrote: >> >> > If you use setop [...]
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Content preview: On Sun, 19 Oct 2025 16:29:19 +0300 Eli Zaretskii wrote: >>
From: Stephen Berman >> Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org >> Date:
Sun, 19 Oct 2025 14:38:51 +0200 >> >> On Sat, 18 Oct 2025 20:31:11 +0300
Eli Zaretskii wrote: >> >> > If you use setop [...]
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manager
On Sun, 19 Oct 2025 16:29:19 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
>> From: Stephen Berman <stephen.berman@HIDDEN>
>> Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org
>> Date: Sun, 19 Oct 2025 14:38:51 +0200
>>=20
>> On Sat, 18 Oct 2025 20:31:11 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
>>=20
>> > If you use setopt there, won't a subsequent "C-h v" that the variable
>> > was changed outside of Customize?
>>=20
>> Yes, of course (assuming you meant `M-x customize-option'), but is that
>> a problem?
>
> It is known to confuse users.
Documenting it in the Emacs manual could help to allay the confusion.
If you agree, I can prepare a patch.
>> That happens anytime you set a user option by any means
>> other than `customize-option' (or its alias `customize-variable').
>
> If the user uses setopt, that is okay, and should not cause confusion.
> But here Dired does that behind the user's back, so the user is not
> aware of the (temporary) change.
[...]
> The primary use of setopt is by users, either interactively or in
> their init files. Programs aren't supposed to do that.
Ok, I think I finally understand your objection now. I had been
thinking that since the buttonized text in the warning is what the user
can type in the minibuffer to change the display of newlines in file
names, then it's ok to use the same `setopt' call in the button's
callback function. But since the callback isn't directly executed by
the user, it should not use `setopt', right? So now I've implemented
the callback as follows, using some code from `dired--toggle-b-switch':
(buttonize "M-: (setopt dired-auto-toggle-b-switch t)"
(lambda (_)
(pop-to-buffer dir)
(when (dired--filename-with-newline-p)
(unless (dired-switches-escape-p dired-actual-switches)
(setq dired-actual-switches
(concat dired-actual-switches " -b"))
(dired-revert))))
nil "mouse-2: Change newline display")
This does not touch the user option `dired-auto-toggle-b-switch', so if
you call `customize-option' on it after pressing the button, the
Customize buffer will show the default value and STANDARD state. But
consequently, the change in the newline display affects only the current
Dired buffer, whereas setopting `dired-auto-toggle-b-switch' to t
affects all Dired buffers. I've adjusted the warning text to reflect
this difference:
=E2=9B=94 Warning (dired): Literal newline in file name.
This Dired buffer displays a file name containing a literal newline
character. Executing Dired operations on files displayed this way may
fail and signal an error. To avoid this you can temporarily change the
display for all Dired buffers, so that newlines in file names appear as
"\n", by entering =E2=80=98M-: (setopt dired-auto-toggle-b-switch t)=E2=
=80=99
in the minibuffer (or just for this Dired buffer by clicking or
pressing RETURN on the highlighted text).
See =E2=80=98(emacs) Dired Enter=E2=80=99 for other alternatives and more=
information.
Are these changes acceptable?
Steve Berman
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
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bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#79528: 30.1; dired errors while handling file names
embedding newlines
In-Reply-To: <86ms5o15i8.fsf@HIDDEN>
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Content preview: On Sat, 18 Oct 2025 20:31:11 +0300 Eli Zaretskii wrote: >>
From: Stephen Berman >> Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org >> Date:
Sat, 18 Oct 2025 19:19:14 +0200 [...] >> >> +See `%s' for more information."))
>> >> + (display-warning >> >> + 'dired > [...]
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Content preview: On Sat, 18 Oct 2025 20:31:11 +0300 Eli Zaretskii wrote: >>
From: Stephen Berman >> Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org >> Date:
Sat, 18 Oct 2025 19:19:14 +0200 [...] >> >> +See `%s' for more information."))
>> >> + (display-warning >> >> + 'dired > [...]
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On Sat, 18 Oct 2025 20:31:11 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
>> From: Stephen Berman <stephen.berman@HIDDEN>
>> Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org
>> Date: Sat, 18 Oct 2025 19:19:14 +0200
[...]=20
>> >> +See `%s' for more information."))
>> >> + (display-warning
>> >> + 'dired
>> >> + (format-message
>> >> + msg
>> >> + (buttonize "M-: (setopt dired-auto-toggle-b-switch t)"
>> >> + (lambda (_)
>> >> + (with-current-buffer dir
>> >> + (setopt dired-auto-toggle-b-switch t)))
>> >
>> > It isn't nice to override values of user options. So perhaps instead
>> > have a variable whose initial value is taken from the user option and
>> > which is consulted when deciding what to do in the relevant cases, an=
d
>> > then tweak that variable as needed.
>>=20
>> I don't think this is really overriding the value of the user option, a=
t
>> least not morally, and not behind the user's back, because the
>> instruction and button only appear in the warning, which plainly
>> explains what will happen, and then only when the user herself takes
>> action. Moreover, since the default value of this option is nil, if th=
e
>> user had set it to t in her init file (or set and saved the value using
>> the Customize interface), then the warning would not have been issued,
>> so the user-set value could not be overridden in that case. It's only
>> the default value that's "overridden", or really just set, and then mos=
t
>> likely with the user's intention (unless she blindly clicked the button
>> in the *Warnings* buffer) and only for the running Emacs session, since
>> using `setopt' like this does not persist the setting, unlike using it
>> in the init file. So I don't see a compelling need for the added
>> indirection. Or am I missing something?
>
> If you use setopt there, won't a subsequent "C-h v" that the variable
> was changed outside of Customize?
Yes, of course (assuming you meant `M-x customize-option'), but is that
a problem? That happens anytime you set a user option by any means
other than `customize-option' (or its alias `customize-variable'). Yet
while both `setopt' and `setq' are documented in the Emacs manual as
alternatives to using the Customize interface, there is no mention that
using them results in the "CHANGED outside Customize" state. Perhaps
this should be documented, either to dispel unwarranted fears that
something went wrong, or if it really does indicate a problem, then it's
even more important to document it and explain why. But I'm not aware
of any problem and thought this state was just providing information.
As for the warning, the obvious alternative to using `setopt' is to use
`customize-option', but that means users will have to go through more
steps to see the change. Francesco wanted a way to immediately change
the display of newlines in file names, and with `setopt' one `M-:' (or
one click on the button in the warning) does that. And again, I don't
see anything wrong with using `setopt'.
Steve Berman
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
Full text available.Received: (at 79528) by debbugs.gnu.org; 18 Oct 2025 17:31:29 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sat Oct 18 13:31:29 2025 Received: from localhost ([127.0.0.1]:46667 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1vAAm9-0003LL-BI for submit <at> debbugs.gnu.org; Sat, 18 Oct 2025 13:31:29 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:33068) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1vAAm4-0003Jk-Gc for 79528 <at> debbugs.gnu.org; Sat, 18 Oct 2025 13:31:27 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1vAAlx-0005q6-NE; Sat, 18 Oct 2025 13:31:17 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=I+mtqNF4nYvdprclMsHoh51WNIaKneEA9AlxZEhRDrc=; b=E2r4wWOeOlan MTS5uToHLwo6lYEqrNOQQOYZrMV2H8mKA8olhM6xGf/HPNFs5J+qlu/ONYPIw9tuO+ZAcwNaerLfS rQSwn3qW5NqdA0cdpeJGR3a+QPZXrooBqcUBSDibGBlzvd+8tAX26ge1StAQTl/uyO6/BM6M4WQBY tVyOeQeJDYgBTvH/jyqiDi7B/mKmUZI313xH4hhumfZG/iWaJwba+bvCawtGJFAinp/MfYLKUiJSW dirLz+T31yrXo9FUDP4fKjjmf+mKvYtVbk9YxXoFOFZq1cxuKRZMsZPOslhv94b5Zw1/WCBUgJ6Sy UdtJ/Gb66aJXfYNBkbgG1A==; Date: Sat, 18 Oct 2025 20:31:11 +0300 Message-Id: <86ms5o15i8.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Stephen Berman <stephen.berman@HIDDEN> In-Reply-To: <87sefg2kml.fsf@HIDDEN> (message from Stephen Berman on Sat, 18 Oct 2025 19:19:14 +0200) Subject: Re: bug#79528: 30.1; dired errors while handling file names embedding newlines References: <E1v2o26-0000000BTsr-2GVJ@HIDDEN> <87seg6uc71.fsf@HIDDEN> <E1v2oOc-0000000BV25-1pHC@HIDDEN> <87o6quu9tu.fsf@HIDDEN> <86cy73f4ys.fsf@HIDDEN> <87v7kl4qzh.fsf@HIDDEN> <868qhh5x42.fsf@HIDDEN> <87cy6qkeke.fsf@HIDDEN> <861pn64xlz.fsf@HIDDEN> <87jz0x7f7z.fsf@HIDDEN> <86bjm936yu.fsf@HIDDEN> <87sefilulw.fsf@HIDDEN> <86ecr2gj51.fsf@HIDDEN> <87sefg2kml.fsf@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 79528 Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > From: Stephen Berman <stephen.berman@HIDDEN> > Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org > Date: Sat, 18 Oct 2025 19:19:14 +0200 > > > I think a footnote indication looks better in print if it comes before > > the period. Can you try both and look in the PDF version of the > > manual to decide which one is better? > > I built the PDF and find the footnote mark before a punctuation mark > sometimes visually jarring. Perhaps this is because I learned (but I > don't remember when or from where) that if the footnote is related to an > entire sentence or clause, then the footnote mark comes after the > punctuation mark, but if the footnote relates to a single word followed > by a punctuation mark, then the footnote mark comes before the > punctuation mark (a web search suggests that this is also the > recommendation most style guides make). Out of curiosity I ran `occur' > on emacs.info: there were 14 matches for "([0-9])[.,;:]" (footnote mark > before punctuation) and 19 matches for "[.,;:]([0-9])" (footnote mark > after punctuation) (not counting the two in my patch). I looked at each > occurrence in context and think all instances of the footnote mark after > punctuation conform to the practice I learned, but a number of the > occurrences of the footnote mark before punctuation deviate from that > practice in my judgment (though even when it doesn't deviate, as with > the last footnote in the GNU Manifesto, which appears before a comma, > the appearance of the footnote mark and the comma nevertheless does not > look good to me in the PDF). So if it were up to me, I'd keep the > footnote mark after the period in the two cases in my patch. Fine by me, thanks for checking. > >> +See `%s' for more information.")) > >> + (display-warning > >> + 'dired > >> + (format-message > >> + msg > >> + (buttonize "M-: (setopt dired-auto-toggle-b-switch t)" > >> + (lambda (_) > >> + (with-current-buffer dir > >> + (setopt dired-auto-toggle-b-switch t))) > > > > It isn't nice to override values of user options. So perhaps instead > > have a variable whose initial value is taken from the user option and > > which is consulted when deciding what to do in the relevant cases, and > > then tweak that variable as needed. > > I don't think this is really overriding the value of the user option, at > least not morally, and not behind the user's back, because the > instruction and button only appear in the warning, which plainly > explains what will happen, and then only when the user herself takes > action. Moreover, since the default value of this option is nil, if the > user had set it to t in her init file (or set and saved the value using > the Customize interface), then the warning would not have been issued, > so the user-set value could not be overridden in that case. It's only > the default value that's "overridden", or really just set, and then most > likely with the user's intention (unless she blindly clicked the button > in the *Warnings* buffer) and only for the running Emacs session, since > using `setopt' like this does not persist the setting, unlike using it > in the init file. So I don't see a compelling need for the added > indirection. Or am I missing something? If you use setopt there, won't a subsequent "C-h v" that the variable was changed outside of Customize? > > Thanks again for working on this tricky problem. > > Thanks very much for the feedback! I think the patch is now ready to > install if you accept my arguments above and there are no further issues > to address. See above.
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
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<E1v2oOc-0000000BV25-1pHC@HIDDEN> <87o6quu9tu.fsf@HIDDEN> <86cy73f4ys.fsf@HIDDEN> <87v7kl4qzh.fsf@HIDDEN> <868qhh5x42.fsf@HIDDEN> <87cy6qkeke.fsf@HIDDEN> <861pn64xlz.fsf@HIDDEN> <87jz0x7f7z.fsf@HIDDEN> <86bjm936yu.fsf@HIDDEN> <87sefilulw.fsf@HIDDEN> <E1v9nmV-0000000E7tF-3pMm@HIDDEN> Date: Sat, 18 Oct 2025 19:19:27 +0200 Message-ID: <87qzv02km8.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:PTBi6ttKbki8FhCqcNDEBz4QTtFwSo+Z0TUGyOJ1of8XeoQnp+t pfywn9OmwNhJBAotyrnmzAA2jKQtW85wJvGNJRlnSH9KsFauLj5hlQ/5k1Cc59XgveddVf9 06yHTC9TLpHrTcNHxX+P7Fv7hSdMlhZuFDcz/5ti55zyDzmS8bC7joqUYny4a059vRy+kvO h+cgOy1m3++PhsgASKyrA== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:jGvxuamlKKY=;59IUFzQyR4DjH7wI0vhJhI82O1/ Iq7JOZo5B33qEaul5z0wfGqtHD0+96XXz+ePYfiZgZFE8pReIPRZOO9G0MCs8eJwhoOq4p5fw f8sba3FNcimdI0w09b6HqVKyzp7GJNBN6iqOyM2KEX9Bt9VvgtVrpZQkDgrqVfoIpoxQoiDh3 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Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) On Fri, 17 Oct 2025 18:58:19 +0200 Francesco Potort=C3=AC <pot@HIDDEN> = wrote: > Steve Berman: >>Latest version attached; I'll wait a bit before >>installing it in case you, Francesco or anyone else has objections. > > I have a dired buffer with several files whose names and in one newline. > > 1) I visit the directory and I get the warning: > > =E2=9B=94 Warning (dired): Literal newline in file name. > This Dired buffer is displaying a file name containing a literal newline > character. Executing Dired operations on such files when they are > displayed this way may fail and signal an error. To avoid this you can > change the display so that newlines in file names are shown as "\n" > by entering =E2=80=98M-: (setopt dired-auto-toggle-b-switch t)=E2=80=99 i= n the minibuffer > (or by clicking on the highlighted text here). > See =E2=80=98(emacs) Dired Enter=E2=80=99 for more information. > > This is much better than the original behaviour, thanks for working on th= is. > As I wrote in a previous email, ideally the user should have the chance to > change things right now. And now that I think of it, Emacs already has a > template for such things, that is, the interface used when you call a dis= abled > command such as downcase-region: the user can immediately choose whether = to > give up, try it just once, try it for the whole Emacs session, or enable = it. The way I implemented changing the display of the newline is prima facie not compatible with the novice.el approach, since that is only for commands, whereas my implementation requires setting a user option which then (via post-command-hook) automatically calls an internal function (i.e., one not meant for the user to directly invoke) to change the display. However, you can immediately effect the change by evaluating the setopt form in the warning, or simply by clicking it, since it's a button. Or you can use `M-x customize-option' to make the change persist in future Emacs sessions (the warning also has a clickable link to the part of the Emacs manual where this feature is explained in detail). > 2) I rename a file using 'R': the file is renamed, and a file with the new > name appears, but the old name still appears, until I use 'g': this is no= rmal > and expected strange behaviour. Yes. Though depending on exactly what the renaming involves there can be problems. But after you change the display to use `\n' instead of a literal newline, then the `R' command works fine and immediately updates the display. > 3) I use dired-toggle-read-only and it seems to work perfectly, even with= the > newlines. Not only that, it even removes the final newlines for file nam= es > that I change. Actually, I do see the same kind of problems I alluded to above also when using Wdired to edit a file name containing a newline, when it's displayed as a literal newline, but not when it's displayed with `\n', so I would recommend using only the latter display for editing, also in Wdired. > 4) I do 'M-x set-variable RET dired-auto-toggle-b-switch RET t RET' and r= evert > the buffer using 'g', but nothing changes. If I kill the Dired buffer, t= hen > it is shown as expected. Maybe the 'g' command does not look at > dired-auto-toggle-b-switch? it probably should, I suppose The problem is that updating the display is also done by the internal function I referred to above, which is automatically executed on visiting a directory containing a file name with a newline, when the user option `dired-auto-toggle-b-switch' is enabled by setopt or by using the Customize interface, but not when using set-variable, which doesn't use the Customize machinery. In this respect `set-variable' is like `setq', which is called out by the Emacs Help machinery, e.g. `C-h v dired-auto-toggle-b-switch' says: "Setting this variable directly with =E2=80=98setq=E2=80=99 may not take effect; use either customize or =E2=80= =98setopt=E2=80=99 [...]". (As I noted in my reply to Eli, there was a bug in the :set function of the user option that prevented updating the display, but I've fixed it.) > 5) I rename a file and remove the final newline. When it is done, the -b > switch is removed and the Dired display is shown as expected. Yes; in particular, if you have files in the same directory whose names have tab or space characters, which are displayed as `\t' and `\ ' when the newline is displayed as `\n', then after removing the newline, the tabs and spaces are displayed as literal spaces, i.e. without being escaped. Thanks for the feedback! Steve Berman
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#79528: 30.1; dired errors while handling file names
embedding newlines
In-Reply-To: <86ecr2gj51.fsf@HIDDEN>
References: <E1v2o26-0000000BTsr-2GVJ@HIDDEN>
<87seg6uc71.fsf@HIDDEN> <E1v2oOc-0000000BV25-1pHC@HIDDEN>
<87o6quu9tu.fsf@HIDDEN> <86cy73f4ys.fsf@HIDDEN>
<87v7kl4qzh.fsf@HIDDEN> <868qhh5x42.fsf@HIDDEN>
<87cy6qkeke.fsf@HIDDEN> <861pn64xlz.fsf@HIDDEN>
<87jz0x7f7z.fsf@HIDDEN> <86bjm936yu.fsf@HIDDEN>
<87sefilulw.fsf@HIDDEN> <86ecr2gj51.fsf@HIDDEN>
Date: Sat, 18 Oct 2025 19:19:14 +0200
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On Fri, 17 Oct 2025 09:03:06 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
>> From: Stephen Berman <stephen.berman@HIDDEN>
>> Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org
>> Date: Thu, 16 Oct 2025 17:44:11 +0200
>>=20
>> > I see nothing wrong with the warning text per se, but an alternative
>> > you perhaps should consider is to place that text in the user manual,
>> > and then have the warning refer to it.
>>=20
>> Yes, I had the same thought and now I've done that (with various
>> reformulations). I also corrected an oversight and fixed a minor
>> problem in the previous patch, removed some unneeded code, and added
>> NEWS entries. Latest version attached; I'll wait a bit before
>> installing it in case you, Francesco or anyone else has objections.
>
> Thanks, a few minor comments below.
>
>> +@cindex file names with newline character
>> +@cindex newline character in file names
>
> These index entries should be qualified with "in Dired" at the end.
Oh yes, thanks. Done.
>> +the file occupies one line as usual, so you can execute all applicable
>> +Dired operations on it.@footnote{Note that with the @samp{-b} switch
>> +Dired displays tab characters in file names as @samp{\t} and escapes
>> +other control characters and also spaces in file names with @samp{\}.}
>
> I think a footnote indication looks better in print if it comes before
> the period. Can you try both and look in the PDF version of the
> manual to decide which one is better?
I built the PDF and find the footnote mark before a punctuation mark
sometimes visually jarring. Perhaps this is because I learned (but I
don't remember when or from where) that if the footnote is related to an
entire sentence or clause, then the footnote mark comes after the
punctuation mark, but if the footnote relates to a single word followed
by a punctuation mark, then the footnote mark comes before the
punctuation mark (a web search suggests that this is also the
recommendation most style guides make). Out of curiosity I ran `occur'
on emacs.info: there were 14 matches for "([0-9])[.,;:]" (footnote mark
before punctuation) and 19 matches for "[.,;:]([0-9])" (footnote mark
after punctuation) (not counting the two in my patch). I looked at each
occurrence in context and think all instances of the footnote mark after
punctuation conform to the practice I learned, but a number of the
occurrences of the footnote mark before punctuation deviate from that
practice in my judgment (though even when it doesn't deviate, as with
the last footnote in the GNU Manifesto, which appears before a comma,
the appearance of the footnote mark and the comma nevertheless does not
look good to me in the PDF). So if it were up to me, I'd keep the
footnote mark after the period in the two cases in my patch.
>> ++++
>> +*** New user option 'dired-auto-toggle-b-switch'
>
> This line should end in a period.
Oops, corrected.
>> +(defun dired--toggle-b-switch ()
>> + "Add or remove `b' switch and redisplay Dired buffer.
>> +When the current Dired buffer has a file name containing a newline, ad=
d
>> +the `b' switch to the actual switches if it isn't already among them;
>> +otherwise remove the `b' switch unless it is in `dired-listing-switche=
s'.
>> +Then redisplay the Dired buffer. This function is called from
>> +`post-command-hook' in Dired mode buffers."
>> + (when (eq major-mode 'dired-mode)
>> + (if (dired--filename-with-newline-p)
>> + (unless (dired-switches-escape-p dired-actual-switches)
>> + (setq dired-actual-switches (concat dired-actual-switches " =
-b"))
>> + (dired-revert))
>> + (unless (dired-switches-escape-p dired-listing-switches)
>> + (when (dired-switches-escape-p dired-actual-switches)
>> + (setq dired-actual-switches
>> + (replace-regexp-in-string "\\( -\\)?b" ""
>> + dired-actual-switches))
>
> What will this do if the value of dired-actual-switches before the
> function is invoked is "-bal", or anything else that begins with "-b"?
Oh, that's a good question! I see no problem with "-bal" alone,
however, if "test" is a directory that has a file with a newline in its
name and I start emacs from the command line like this:
$ emacs -Q --eval '(setq dired-listing-switches "--block-size=3Dsi -bal")'=
test
then the file with the newline is displayed with "\n" instead of a
literal newline, as expected; but if I now do `M-x (setopt
dired-auto-toggle-b-switch nil)' to get the display with the literal
newline, it fails with the error "Listing directory failed but
`access-file' worked", because the value of `dired-actual-switches' has
changed to "--lock-size=3Dsial"! Thanks for spotting this problem (or at
least being aware of its possibility)!
I couldn't find a solution using `replace-regexp-in-string', so I wrote
the following function and called it instead of calling
`replace-regexp-in-string' in the function cited above (I also had to
make another change in that function, see below):
(defun dired--remove-b-switch ()
"Remove all variants of the `b' switch from `dired-actual-switches'.
This removes not only all occurrences of the short form `-b' but also
the long forms `--escape' and `--quoting-style=3Descape'."
(let (switches)
(dolist (s (string-split dired-actual-switches))
(when (string-match "\\`-[^-]" s)
(setq s (remove ?b s)))
(unless (or (string=3D s "-")
(string-match "escape" s))
(cl-pushnew s switches :test 'equal)))
(mapconcat #'identity (nreverse switches) " ")))
I also saw that the long form `--quoting-style=3Descape' was overlooked in
`dired-switches-escape-p', so I corrected that.
>> +(defun dired--set-auto-toggle-b-switch (symbol value)
>> + "The :set function for user option `dired-auto-toggle-b-switch'."
>> + (custom-set-default symbol value)
>> + (if value
>> + (add-hook 'post-command-hook #'dired--toggle-b-switch nil t)
>> + (remove-hook 'post-command-hook #'dired--toggle-b-switch t)
>> + (setq dired-actual-switches
>> + (replace-regexp-in-string "\\( -\\)?b" "" dired-actual-switc=
hes))
>> + (dired-revert)))
>
> Same here.
Here there turned out to be a more serious problem: calling
`dired-revert' here is a no-op because we're not in a Dired buffer;
consequently, the display of the Dired buffer with the newline in the
file name is not updated. I fixed this by replacing the setq and
dired-revert calls with this:
(dolist (b (buffer-list))
(with-current-buffer b
(dired--toggle-b-switch)))
I also had to replace the if-condition in `dired--toggle-b-switch' by
`(and (dired--filename-with-newline-p) dired-auto-toggle-b-switch)`.
With these changes, setting and unsetting the user option, whether by
setopt or the Customize interface, automatically updates the Dired
buffers displaying file names with newlines.
>> +(defun dired--display-filename-with-newline-warning (dir)
>> + "Display a warning if buffer DIR has a file name with a newline."
>> + (let ((msg "Literal newline in file name.
>> +This Dired buffer is displaying a file name containing a literal newli=
ne
>> +character. Executing Dired operations on such files when they are
>> +displayed this way may fail and signal an error. To avoid this you ca=
n
>> +change the display so that newlines in file names are shown as \"\\n\"
>> +by entering `%s' in the minibuffer
>> +(or by clicking on the highlighted text here).
>> +See `%s' for more information."))
>> + (display-warning
>> + 'dired
>> + (format-message
>> + msg
>> + (buttonize "M-: (setopt dired-auto-toggle-b-switch t)"
>> + (lambda (_)
>> + (with-current-buffer dir
>> + (setopt dired-auto-toggle-b-switch t)))
>
> It isn't nice to override values of user options. So perhaps instead
> have a variable whose initial value is taken from the user option and
> which is consulted when deciding what to do in the relevant cases, and
> then tweak that variable as needed.
I don't think this is really overriding the value of the user option, at
least not morally, and not behind the user's back, because the
instruction and button only appear in the warning, which plainly
explains what will happen, and then only when the user herself takes
action. Moreover, since the default value of this option is nil, if the
user had set it to t in her init file (or set and saved the value using
the Customize interface), then the warning would not have been issued,
so the user-set value could not be overridden in that case. It's only
the default value that's "overridden", or really just set, and then most
likely with the user's intention (unless she blindly clicked the button
in the *Warnings* buffer) and only for the running Emacs session, since
using `setopt' like this does not persist the setting, unlike using it
in the init file. So I don't see a compelling need for the added
indirection. Or am I missing something?
> Thanks again for working on this tricky problem.
Thanks very much for the feedback! I think the patch is now ready to
install if you accept my arguments above and there are no further issues
to address.
Steve Berman
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
Full text available.Received: (at 79528) by debbugs.gnu.org; 17 Oct 2025 16:58:26 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Fri Oct 17 12:58:26 2025 Received: from localhost ([127.0.0.1]:54045 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1v9nmc-00042i-9V for submit <at> debbugs.gnu.org; Fri, 17 Oct 2025 12:58:26 -0400 Received: from plesklin7.if2.ehiweb.it ([79.98.45.17]:59397 helo=plesklin7.ehiweb.it) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84_2) (envelope-from <pot@HIDDEN>) id 1v9nmY-00042U-Ud for 79528 <at> debbugs.gnu.org; Fri, 17 Oct 2025 12:58:24 -0400 Received: from tucano.isti.cnr.it (tucano.isti.cnr.it [146.48.81.102]) by plesklin7.ehiweb.it (Postfix) with ESMTPSA id 117C41CB477; Fri, 17 Oct 2025 18:58:20 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=potorti.it; s=default; t=1760720300; bh=XT5tpLMxT/HohEkxuOztEvooUx5n5zVefeUZqu4Lylg=; h=Received:From:To:Subject; b=e3Glu2uYm6gbToYkM5Bg7q2wwtJCRJtsgfsGovwALoUxzYwYHW5Pv3qiqp3NcE2p2 L++Ac5wZTyZccT/YXo57EsJaCkJNWr6EryiTeYgqCpLdNMu19kAJENX7ZYabOnYjm0 cP7eM0RSa1NJ1vI9zGW5PKrWI895cUjNxTitDahc= Authentication-Results: plesklin7.ehiweb.it; spf=pass (sender IP is 146.48.81.102) smtp.mailfrom=pot@HIDDEN smtp.helo=tucano.isti.cnr.it Received-SPF: pass (plesklin7.ehiweb.it: connection is authenticated) Received: from pot by tucano.isti.cnr.it with local (Exim 4.98.2) (envelope-from <pot@HIDDEN>) id 1v9nmV-0000000E7tF-3pMm; Fri, 17 Oct 2025 18:58:19 +0200 From: =?utf-8?Q?Francesco_Potort=C3=AC?= <pot@HIDDEN> Date: Fri, 17 Oct 2025 18:58:19 +0200 To: Stephen Berman <stephen.berman@HIDDEN> In-Reply-To: <87sefilulw.fsf@HIDDEN> (stephen.berman@HIDDEN) Subject: Re: bug#79528: 30.1; dired errors while handling file names embedding newlines References: <E1v2o26-0000000BTsr-2GVJ@HIDDEN> <87seg6uc71.fsf@HIDDEN> <E1v2oOc-0000000BV25-1pHC@HIDDEN> <87o6quu9tu.fsf@HIDDEN> <86cy73f4ys.fsf@HIDDEN> <87v7kl4qzh.fsf@HIDDEN> <868qhh5x42.fsf@HIDDEN> <87cy6qkeke.fsf@HIDDEN> <861pn64xlz.fsf@HIDDEN> <87jz0x7f7z.fsf@HIDDEN> <86bjm936yu.fsf@HIDDEN> <87sefilulw.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-fingerprint: 4B02 6187 5C03 D6B1 2E31 7666 09DF 2DC9 BE21 6115 Message-Id: <E1v9nmV-0000000E7tF-3pMm@HIDDEN> X-PPP-Message-ID: <176072030016.2118166.169173942268596603@HIDDEN> X-PPP-Vhost: potorti.it X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 79528 Cc: Eli Zaretskii <eliz@HIDDEN>, 79528 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) Steve Berman: >Latest version attached; I'll wait a bit before >installing it in case you, Francesco or anyone else has objections. I have a dired buffer with several files whose names and in one newline. 1) I visit the directory and I get the warning: =E2=9B=94 Warning (dired): Literal newline in file name. This Dired buffer is displaying a file name containing a literal newline character. Executing Dired operations on such files when they are displayed this way may fail and signal an error. To avoid this you can change the display so that newlines in file names are shown as "\n" by entering =E2=80=98M-: (setopt dired-auto-toggle-b-switch t)=E2=80=99 in = the minibuffer (or by clicking on the highlighted text here). See =E2=80=98(emacs) Dired Enter=E2=80=99 for more information. This is much better than the original behaviour, thanks for working on this= . As I wrote in a previous email, ideally the user should have the chance = to change things right now. And now that I think of it, Emacs already has = a template for such things, that is, the interface used when you call a dis= abled command such as downcase-region: the user can immediately choose whet= her to give up, try it just once, try it for the whole Emacs session, or en= able it. 2) I rename a file using 'R': the file is renamed, and a file with the new = name appears, but the old name still appears, until I use 'g': this is norm= al and expected strange behaviour. 3) I use dired-toggle-read-only and it seems to work perfectly, even with t= he newlines. Not only that, it even removes the final newlines for file na= mes that I change. 4) I do 'M-x set-variable RET dired-auto-toggle-b-switch RET t RET' and rev= ert the buffer using 'g', but nothing changes. If I kill the Dired buffer,= then it is shown as expected. Maybe the 'g' command does not look at dire= d-auto-toggle-b-switch? it probably should, I suppose 5) I rename a file and remove the final newline. When it is done, the -b s= witch is removed and the Dired display is shown as expected. =2D- fp
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
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Date: Fri, 17 Oct 2025 09:03:06 +0300
Message-Id: <86ecr2gj51.fsf@HIDDEN>
From: Eli Zaretskii <eliz@HIDDEN>
To: Stephen Berman <stephen.berman@HIDDEN>
In-Reply-To: <87sefilulw.fsf@HIDDEN> (message from Stephen Berman on Thu, 16
Oct 2025 17:44:11 +0200)
Subject: Re: bug#79528: 30.1; dired errors while handling file names
embedding newlines
References: <E1v2o26-0000000BTsr-2GVJ@HIDDEN>
<87seg6uc71.fsf@HIDDEN> <E1v2oOc-0000000BV25-1pHC@HIDDEN>
<87o6quu9tu.fsf@HIDDEN> <86cy73f4ys.fsf@HIDDEN>
<87v7kl4qzh.fsf@HIDDEN> <868qhh5x42.fsf@HIDDEN>
<87cy6qkeke.fsf@HIDDEN> <861pn64xlz.fsf@HIDDEN>
<87jz0x7f7z.fsf@HIDDEN> <86bjm936yu.fsf@HIDDEN> <87sefilulw.fsf@HIDDEN>
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> From: Stephen Berman <stephen.berman@HIDDEN>
> Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org
> Date: Thu, 16 Oct 2025 17:44:11 +0200
>
> > I see nothing wrong with the warning text per se, but an alternative
> > you perhaps should consider is to place that text in the user manual,
> > and then have the warning refer to it.
>
> Yes, I had the same thought and now I've done that (with various
> reformulations). I also corrected an oversight and fixed a minor
> problem in the previous patch, removed some unneeded code, and added
> NEWS entries. Latest version attached; I'll wait a bit before
> installing it in case you, Francesco or anyone else has objections.
Thanks, a few minor comments below.
> +@cindex file names with newline character
> +@cindex newline character in file names
These index entries should be qualified with "in Dired" at the end.
> +the file occupies one line as usual, so you can execute all applicable
> +Dired operations on it.@footnote{Note that with the @samp{-b} switch
> +Dired displays tab characters in file names as @samp{\t} and escapes
> +other control characters and also spaces in file names with @samp{\}.}
I think a footnote indication looks better in print if it comes before
the period. Can you try both and look in the PDF version of the
manual to decide which one is better?
> ++++
> +*** New user option 'dired-auto-toggle-b-switch'
This line should end in a period.
> +(defun dired--toggle-b-switch ()
> + "Add or remove `b' switch and redisplay Dired buffer.
> +When the current Dired buffer has a file name containing a newline, add
> +the `b' switch to the actual switches if it isn't already among them;
> +otherwise remove the `b' switch unless it is in `dired-listing-switches'.
> +Then redisplay the Dired buffer. This function is called from
> +`post-command-hook' in Dired mode buffers."
> + (when (eq major-mode 'dired-mode)
> + (if (dired--filename-with-newline-p)
> + (unless (dired-switches-escape-p dired-actual-switches)
> + (setq dired-actual-switches (concat dired-actual-switches " -b"))
> + (dired-revert))
> + (unless (dired-switches-escape-p dired-listing-switches)
> + (when (dired-switches-escape-p dired-actual-switches)
> + (setq dired-actual-switches
> + (replace-regexp-in-string "\\( -\\)?b" ""
> + dired-actual-switches))
What will this do if the value of dired-actual-switches before the
function is invoked is "-bal", or anything else that begins with "-b"?
> +(defun dired--set-auto-toggle-b-switch (symbol value)
> + "The :set function for user option `dired-auto-toggle-b-switch'."
> + (custom-set-default symbol value)
> + (if value
> + (add-hook 'post-command-hook #'dired--toggle-b-switch nil t)
> + (remove-hook 'post-command-hook #'dired--toggle-b-switch t)
> + (setq dired-actual-switches
> + (replace-regexp-in-string "\\( -\\)?b" "" dired-actual-switches))
> + (dired-revert)))
Same here.
> +(defun dired--display-filename-with-newline-warning (dir)
> + "Display a warning if buffer DIR has a file name with a newline."
> + (let ((msg "Literal newline in file name.
> +This Dired buffer is displaying a file name containing a literal newline
> +character. Executing Dired operations on such files when they are
> +displayed this way may fail and signal an error. To avoid this you can
> +change the display so that newlines in file names are shown as \"\\n\"
> +by entering `%s' in the minibuffer
> +(or by clicking on the highlighted text here).
> +See `%s' for more information."))
> + (display-warning
> + 'dired
> + (format-message
> + msg
> + (buttonize "M-: (setopt dired-auto-toggle-b-switch t)"
> + (lambda (_)
> + (with-current-buffer dir
> + (setopt dired-auto-toggle-b-switch t)))
It isn't nice to override values of user options. So perhaps instead
have a variable whose initial value is taken from the user option and
which is consulted when deciding what to do in the relevant cases, and
then tweak that variable as needed.
Thanks again for working on this tricky problem.
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#79528: 30.1; dired errors while handling file names
embedding newlines
In-Reply-To: <86bjm936yu.fsf@HIDDEN>
References: <E1v2o26-0000000BTsr-2GVJ@HIDDEN>
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Date: Thu, 16 Oct 2025 17:44:11 +0200
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--=-=-=
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
On Tue, 14 Oct 2025 17:15:21 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
>> From: Stephen Berman <stephen.berman@HIDDEN>
>> Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org
>> Date: Tue, 14 Oct 2025 16:03:28 +0200
>>=20
>> > Thanks. I don't ATM have time to try this, so if you think the code
>> > is solid, feel free to install the changes, and let's see if it cause=
s
>> > any regressions or unwanted consequences.
>>=20
>> Thanks. I haven't given it thorough testing but the basic approach
>> seems viable, though it's likely to need tweaking for cases I haven't
>> considered or encountered yet. In addition, I've now tried to at least
>> partly accommodate Francesco's proposal (see below), and would also
>> appreciate your feedback on that before installing the patch (latest
>> version attached).
>
> I see nothing wrong with the warning text per se, but an alternative
> you perhaps should consider is to place that text in the user manual,
> and then have the warning refer to it.
Yes, I had the same thought and now I've done that (with various
reformulations). I also corrected an oversight and fixed a minor
problem in the previous patch, removed some unneeded code, and added
NEWS entries. Latest version attached; I'll wait a bit before
installing it in case you, Francesco or anyone else has objections.
Steve Berman
--=-=-=
Content-Type: text/x-patch
Content-Disposition: attachment
Content-Description: dired filenames with newline patch
Content-Transfer-Encoding: quoted-printable
diff --git a/doc/emacs/dired.texi b/doc/emacs/dired.texi
index e49823384ce..bbb0801759e 100644
=2D-- a/doc/emacs/dired.texi
+++ b/doc/emacs/dired.texi
@@ -136,15 +136,57 @@ Dired Enter
options (starting with @samp{--}) whose arguments are specified with
@samp{=3D}.
=20
- Dired does not handle files that have names with embedded newline
-characters well. If you have many such files, you may consider adding
-@samp{-b} to @code{dired-listing-switches}. This will quote all
-special characters and allow Dired to handle them better. (You can
-also use the @kbd{C-u C-x d} command to add @samp{-b} temporarily.)
-
-@code{dired-listing-switches} can be declared as connection-local
-variable to adjust it to match what a remote system expects
-(@pxref{Connection Variables}).
+You can declare @code{dired-listing-switches} as a connection-local
+variable in order to adjust its value to match what a remote system
+expects (@pxref{Connection Variables}).
+
+@cindex file names with newline character
+@cindex newline character in file names
+@anchor{File names with newline}
+ When a file name contains a newline character, Dired displays it by
+default as a literal newline, so the display of this file name occupies
+more than one line in the Dired buffer. If you invoke a Dired operation
+on such a file listing, in many cases it will fail and signal an error.
+For this reason, when Dired displays a file name containing a literal
+newline, Emacs recognizes this and automatically pops up a buffer with
+an informative warning. For such file names, Dired offers an
+alternative display, using the @command{ls} switch @samp{-b}, in which
+newline characters are represented by @samp{\n} and the Dired listing of
+the file occupies one line as usual, so you can execute all applicable
+Dired operations on it.@footnote{Note that with the @samp{-b} switch
+Dired displays tab characters in file names as @samp{\t} and escapes
+other control characters and also spaces in file names with @samp{\}.}
+
+ Emacs provides two different ways to make Dired use the @samp{-b}
+switch:
+
+@itemize @bullet
+@item
+You can add @samp{-b} to @code{dired-listing-switches} before invoking
+@code{dired}. Since this variable is a user option, you can alter its
+value persistently either by using the Customization interface
+(@pxref{Saving Customizations}) or by using the @code{setopt} macro in
+your initialization file (@pxref{Examining}).@footnote{If
+@code{dired-listing-switches} contains @samp{-b} when you invoke dired
+on a directory containing a file name with a newline, the newline is
+displayed as @samp{\n}, so Emacs will not pop up a warning.} You can
+also add @samp{-b} just for the next @code{dired} invocation by typing
+@kbd{C-u C-x d}.
+
+@item
+@vindex dired-auto-toggle-b-switch
+If you enable the user option @code{dired-auto-toggle-b-switch}, then
+when you visit a directory containing a file whose name has a newline,
+Emacs will automatically add the @samp{-b} switch and redisplay the
+directory in Dired to show @samp{\n} in the file name. If you edit the
+file name and remove the @samp{\n} character, then on completing the
+edit Emacs automatically removes the @samp{-b} switch and redisplays the
+Dired buffer, so that file names with tab or space characters now show
+literal spaces without a backslash. If you enable or disable
+@code{dired-auto-toggle-b-switch} after visiting a directory containing
+a file name with a newline, Emacs will add or remove the @samp{-b}
+switch as appropriate and automatically redisplay the Dired buffer.
+@end itemize
=20
@vindex dired-switches-in-mode-line
Dired displays in the mode line an indication of what were the
diff --git a/etc/NEWS b/etc/NEWS
index e4024129dec..1f8bac76a4a 100644
=2D-- a/etc/NEWS
+++ b/etc/NEWS
@@ -1997,6 +1997,24 @@ name of the directory now reverts the Dired buffer.
With a new value of the prefix argument (1), this command copies file
names relative to the root directory of the current project.
=20
++++
+*** Warning when Dired displays a file name with a literal newline.
+On visiting a directory that contains a file whose name has a newline,
+and Dired displays that character as a literal newline, Emacs now
+automatically pops up a buffer warning that such a display can be
+problematic for Dired and showing a way to change the display to use the
+unproblematic character '\n'.
+
++++
+*** New user option 'dired-auto-toggle-b-switch'
+When this user option is non-nil and 'dired-listing-switches' does not
+include the '-b' switch, then on visiting a directory containing a file
+whose name has a newline, Emacs automatically adds the '-b' switch and
+redisplays the directory in Dired to show '\n' in the file name instead
+of a literal newline. This prevents executing many Dired operations on
+such a file from failing and signaling an error. The default value of
+this user option is nil.
+
** Grep
=20
+++
diff --git a/lisp/dired.el b/lisp/dired.el
index 996ca9c23bb..78a6637c133 100644
=2D-- a/lisp/dired.el
+++ b/lisp/dired.el
@@ -550,6 +550,16 @@ dired-filename-display-length
:group 'dired
:version "30.1")
=20
+(defcustom dired-auto-toggle-b-switch nil
+ "Whether to automatically add or remove the `b' switch.
+If non-nil, the function `dired--toggle-b-switch' (which see) is added
+to `post-command-hook' in Dired mode."
+ :type 'boolean
+ :group 'dired
+ :initialize #'custom-initialize-default
+ :set #'dired--set-auto-toggle-b-switch
+ :version "31.1")
+
=0C
;;; Internal variables
=20
@@ -1434,6 +1444,11 @@ dired-internal-noselect
(dired-initial-position dirname))
(when (consp dired-directory)
(dired--align-all-files))
+ (unless (or dired-auto-toggle-b-switch
+ (dired-switches-escape-p dired-listing-switches)
+ (dired-switches-escape-p dired-actual-switches))
+ (when (dired--filename-with-newline-p)
+ (dired--display-filename-with-newline-warning buffer)))
(set-buffer old-buf)
buffer))
=20
@@ -2852,6 +2867,8 @@ dired-mode
(add-hook 'file-name-at-point-functions #'dired-file-name-at-point nil =
t)
(add-hook 'isearch-mode-hook #'dired-isearch-filenames-setup nil t)
(add-hook 'context-menu-functions 'dired-context-menu 5 t)
+ (when dired-auto-toggle-b-switch
+ (add-hook 'post-command-hook #'dired--toggle-b-switch nil t))
(run-mode-hooks 'dired-mode-hook))
=20
=0C
@@ -3430,7 +3447,14 @@ dired-move-to-end-of-filename
;; On failure, signals an error (with non-nil NO-ERROR just returns nil=
).
;; This is the UNIX version.
(if (get-text-property (point) 'dired-filename)
- (goto-char (next-single-property-change (point) 'dired-filename))
+ (goto-char (or (next-single-property-change (point) 'dired-filename=
)
+ ;; No property change can happen on or before the
+ ;; last file name in the Dired listing when there
+ ;; is at least one prior file name containing a
+ ;; newline. To prevent an error in this case we
+ ;; take the position just before the final newline
+ ;; as the end of the last file name (bug#79528).
+ (1- (point-max))))
(let ((opoint (point))
(used-F (dired-check-switches dired-actual-switches "F" "classi=
fy"))
(eol (line-end-position))
@@ -3964,6 +3988,82 @@ dired-buffer-more-recently-used-p
(memq buffer1 (buffer-list))
(not (memq buffer1 (memq buffer2 (buffer-list))))))
=20
+(defun dired--filename-with-newline-p ()
+ "Check if a file name in this directory has a newline.
+Return non-nil if at least one file name in this directory contains
+either a literal newline or the string \"\\n\")."
+ (save-excursion
+ (goto-char (point-min))
+ (catch 'found
+ (while (not (eobp))
+ (when (dired-move-to-filename)
+ (let ((fn (buffer-substring-no-properties
+ (point) (dired-move-to-end-of-filename))))
+ (when (or (memq 10 (seq-into fn 'list))
+ (string-search "\\n" fn))
+ (throw 'found t))))
+ (forward-line)))))
+
+(defun dired--toggle-b-switch ()
+ "Add or remove `b' switch and redisplay Dired buffer.
+When the current Dired buffer has a file name containing a newline, add
+the `b' switch to the actual switches if it isn't already among them;
+otherwise remove the `b' switch unless it is in `dired-listing-switches'.
+Then redisplay the Dired buffer. This function is called from
+`post-command-hook' in Dired mode buffers."
+ (when (eq major-mode 'dired-mode)
+ (if (dired--filename-with-newline-p)
+ (unless (dired-switches-escape-p dired-actual-switches)
+ (setq dired-actual-switches (concat dired-actual-switches " -b"=
))
+ (dired-revert))
+ (unless (dired-switches-escape-p dired-listing-switches)
+ (when (dired-switches-escape-p dired-actual-switches)
+ (setq dired-actual-switches
+ (replace-regexp-in-string "\\( -\\)?b" ""
+ dired-actual-switches))
+ (dired-revert))))))
+
+(defun dired--set-auto-toggle-b-switch (symbol value)
+ "The :set function for user option `dired-auto-toggle-b-switch'."
+ (custom-set-default symbol value)
+ (if value
+ (add-hook 'post-command-hook #'dired--toggle-b-switch nil t)
+ (remove-hook 'post-command-hook #'dired--toggle-b-switch t)
+ (setq dired-actual-switches
+ (replace-regexp-in-string "\\( -\\)?b" "" dired-actual-switches=
))
+ (dired-revert)))
+
+(defun dired--display-filename-with-newline-warning (dir)
+ "Display a warning if buffer DIR has a file name with a newline."
+ (let ((msg "Literal newline in file name.
+This Dired buffer is displaying a file name containing a literal newline
+character. Executing Dired operations on such files when they are
+displayed this way may fail and signal an error. To avoid this you can
+change the display so that newlines in file names are shown as \"\\n\"
+by entering `%s' in the minibuffer
+(or by clicking on the highlighted text here).
+See `%s' for more information."))
+ (display-warning
+ 'dired
+ (format-message
+ msg
+ (buttonize "M-: (setopt dired-auto-toggle-b-switch t)"
+ (lambda (_)
+ (with-current-buffer dir
+ (setopt dired-auto-toggle-b-switch t)))
+ nil "mouse-2: Execute code")
+ (buttonize "(emacs) Dired Enter"
+ (lambda (_)
+ (info "(emacs) Dired Enter")
+ (with-current-buffer "*info*"
+ (Info-goto-node "File names with newline")))
+ nil "mouse-2: Jump to Info node")))
+ ;; Display *Warnings* buffer with point at start of message instead
+ ;; of at the end.
+ (with-current-buffer "*Warnings*"
+ (set-window-point (get-buffer-window)
+ (search-backward "Warning (dired)")))))
+
=0C
;;; Deleting files
=20
--=-=-=--
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
Full text available.Received: (at 79528) by debbugs.gnu.org; 14 Oct 2025 14:15:48 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue Oct 14 10:15:48 2025 Received: from localhost ([127.0.0.1]:39309 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1v8foW-0001SQ-Ov for submit <at> debbugs.gnu.org; Tue, 14 Oct 2025 10:15:48 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:42610) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1v8foK-0001Rz-KD for 79528 <at> debbugs.gnu.org; Tue, 14 Oct 2025 10:15:34 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1v8foC-0005v5-Kg; Tue, 14 Oct 2025 10:15:24 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=GunvRpgnBtA9rVf30ntjECZmTAcrAuiPLKaoK3I5ETw=; b=XQvwzXz8/Ldy hsfx6qOU7DLxJKuCuCM+LdGcBEXA8vRWMg4dSrjthruevv8O4eKLpp4263OXhPS6V/tyQm4USnJd3 YhEZlWBkEqQxcA0RzoHFpieULMNVmEXO1I4ipsQe/l9BXGIFFfHkGPfVDpZuvxotOE9w2/OqPA50v YDb0OR+ePlWHepigHzxII916RxVgEbnNK6O3wpzJR4gn+BwaKfHEGccacV7JkgcytgRUK653BtCr7 P3K7o9kTZIx8ea65F3GvBgduluxRXMUYKDYoyvOngORQKhdLsuRXvbdnAbgNz6lyst9gJm5VacDtF /RwjimSipbOcaz7AwkKS6w==; Date: Tue, 14 Oct 2025 17:15:21 +0300 Message-Id: <86bjm936yu.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Stephen Berman <stephen.berman@HIDDEN> In-Reply-To: <87jz0x7f7z.fsf@HIDDEN> (message from Stephen Berman on Tue, 14 Oct 2025 16:03:28 +0200) Subject: Re: bug#79528: 30.1; dired errors while handling file names embedding newlines References: <E1v2o26-0000000BTsr-2GVJ@HIDDEN> <87seg6uc71.fsf@HIDDEN> <E1v2oOc-0000000BV25-1pHC@HIDDEN> <87o6quu9tu.fsf@HIDDEN> <86cy73f4ys.fsf@HIDDEN> <87v7kl4qzh.fsf@HIDDEN> <868qhh5x42.fsf@HIDDEN> <87cy6qkeke.fsf@HIDDEN> <861pn64xlz.fsf@HIDDEN> <87jz0x7f7z.fsf@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 79528 Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > From: Stephen Berman <stephen.berman@HIDDEN> > Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org > Date: Tue, 14 Oct 2025 16:03:28 +0200 > > > Thanks. I don't ATM have time to try this, so if you think the code > > is solid, feel free to install the changes, and let's see if it causes > > any regressions or unwanted consequences. > > Thanks. I haven't given it thorough testing but the basic approach > seems viable, though it's likely to need tweaking for cases I haven't > considered or encountered yet. In addition, I've now tried to at least > partly accommodate Francesco's proposal (see below), and would also > appreciate your feedback on that before installing the patch (latest > version attached). I see nothing wrong with the warning text per se, but an alternative you perhaps should consider is to place that text in the user manual, and then have the warning refer to it.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#79528: 30.1; dired errors while handling file names
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On Mon, 13 Oct 2025 18:42:16 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
>> From: Stephen Berman <stephen.berman@HIDDEN>
>> Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org
>> Date: Mon, 13 Oct 2025 17:26:57 +0200
>>=20
>> On Sat, 11 Oct 2025 17:30:53 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
[...]
>> > AFAIR, using -b has some unpleasant consequences in other cases (if it
>> > didn't, we ought to include -b in the default value of the switches),
>> > so I wouldn't apply it automatically.
>>=20
>> How about if it's enabled by setting a user option? The attached patch
>> does that.
[...]
> Thanks. I don't ATM have time to try this, so if you think the code
> is solid, feel free to install the changes, and let's see if it causes
> any regressions or unwanted consequences.
Thanks. I haven't given it thorough testing but the basic approach
seems viable, though it's likely to need tweaking for cases I haven't
considered or encountered yet. In addition, I've now tried to at least
partly accommodate Francesco's proposal (see below), and would also
appreciate your feedback on that before installing the patch (latest
version attached).
On Mon, 13 Oct 2025 17:50:22 +0200 Francesco Potort=C3=AC <pot@HIDDEN> =
wrote:
>>On Sat, 11 Oct 2025 18:59:12 +0200 Francesco Potort=C3=AC <pot@HIDDEN=
> wrote:
>>> Thank you for working on this issue. This is a user view of what I thi=
nk
>>> would be a good behaviour ...
>
> Stephen Berman:
>>This seems like a rather complex UI, and seeing the message each time
>>and having to answer the question could be annoying.
>
> I fear my message was confusing, as this looks a simple interface to me.
> Whether it is easy to detect am embedded newline is another matter. Tryi=
ng to
> reformulate:
>
> Each time an operation is requested on any file, Dired checks whether the=
file
> name contains a newline. If it does, Dired will not perform the requested
> action, but rather asks this question:
>
> |Dired cannot perform the requested action, because the file name
> |contains a newline. Dired can redisplay the directory using the -b
> |option to ls, which has the effect of quoting all spaces for all
> |files in the directory. After redisplay, you can issue the command
> |again.
> |
> |Do you want to launch Dired now using the -b flag to ls?
>
> In other words, rather than erroring out as Dired does now, the above que=
stion
> is asked. If the user answers no, Dired does nothing. If the user answe=
rs
> yes, Dired redisplays with -b and does nothing more.
Thanks for the clarification. With my patch there is no longer an error
on invoking Dired to display a directory with a file whose name contains
a newline, though errors can occur when try to perfom certain
operations. Therefore, my patch enables automatically switching to a
Dired display using -b, conditioned by a user option. I've now
augmented my patch (attached) so that when the user option is disabled
(as it is by default), displaying a problematic directory in Dired pops
up a *Warnings* buffer that explains the problem and what you can do
about it (and includes buttons to act immediately). The text I've
written is rather verbose and I'm not sure it's appropriate for a
warning; it's actually more or less what I would add to the Emacs manual
to update node "Dired Enter" when the patch is committed. In that case,
the warning could be shortened and contain a link to that node. But I'm
not sure what to omit while keeping the warning useful. Here's the
current text of the warning:
---------------------------------------------------------------------
=E2=9B=94 Warning (dired): Literal newline in file name.
This Dired buffer is displaying a file name with a literal embedded
newline character. Dired cannot perform certain operations, such as
renaming and deletion, on such files when they are displayed this way.
You can change the display so that newlines in file names are shown as
"\n". Then the corresponding file listings occupy a single line and
you can execute all applicable Dired operations on them.
To change the display of newlines in file names temporarily, enter
=E2=80=98M-: (setopt dired-auto-toggle-b-switch t)=E2=80=99 in the minibuff=
er
(or click on the highlighted text here). This also displays tab
characters and spaces in file names as "\t" and "\ ",
respectively. If you edit the file names to delete the newlines, the
display automatically reverts to showing literal tabs and spaces. You
can manually restore the literal display by entering (or clicking on)
=E2=80=98M-: (setopt dired-auto-toggle-b-switch nil)=E2=80=99.
To permanently change the display of such characters in file names,
type (or click on) =E2=80=98M-x customize-option RET dired-auto-toggle-b-sw=
itch RET=E2=80=99
and then enable (or disable) this user option and save the setting for
future sessions.
---------------------------------------------------------------------
Steve Berman
--=-=-=
Content-Type: text/x-patch
Content-Disposition: attachment
Content-Description: dired file name with newline patch
Content-Transfer-Encoding: quoted-printable
diff --git a/lisp/dired.el b/lisp/dired.el
index 996ca9c23bb..1f1d9ca0a84 100644
=2D-- a/lisp/dired.el
+++ b/lisp/dired.el
@@ -550,6 +550,16 @@ dired-filename-display-length
:group 'dired
:version "30.1")
=20
+(defcustom dired-auto-toggle-b-switch nil
+ "Whether to automatically add or remove the `b' switch.
+If non-nil, the function `dired--toggle-b-switch' (which see) is added
+to `post-command-hook' in Dired mode."
+ :type 'boolean
+ :group 'dired
+ :initialize #'custom-initialize-default
+ :set #'dired--set-auto-toggle-b-switch
+ :version "31.1")
+
=0C
;;; Internal variables
=20
@@ -1434,6 +1444,9 @@ dired-internal-noselect
(dired-initial-position dirname))
(when (consp dired-directory)
(dired--align-all-files))
+ (unless dired-auto-toggle-b-switch
+ (when (dired--filename-with-newline-p)
+ (dired--display-filename-with-newline-warning buffer)))
(set-buffer old-buf)
buffer))
=20
@@ -2852,6 +2865,8 @@ dired-mode
(add-hook 'file-name-at-point-functions #'dired-file-name-at-point nil =
t)
(add-hook 'isearch-mode-hook #'dired-isearch-filenames-setup nil t)
(add-hook 'context-menu-functions 'dired-context-menu 5 t)
+ (when dired-auto-toggle-b-switch
+ (add-hook 'post-command-hook #'dired--toggle-b-switch nil t))
(run-mode-hooks 'dired-mode-hook))
=20
=0C
@@ -3430,7 +3445,14 @@ dired-move-to-end-of-filename
;; On failure, signals an error (with non-nil NO-ERROR just returns nil=
).
;; This is the UNIX version.
(if (get-text-property (point) 'dired-filename)
- (goto-char (next-single-property-change (point) 'dired-filename))
+ (goto-char (or (next-single-property-change (point) 'dired-filename=
)
+ ;; No property change can happen on or before the
+ ;; last file name in the Dired listing when there
+ ;; is at least one prior file name containing a
+ ;; newline. To prevent an error in this case we
+ ;; take the position just before the final newline
+ ;; as the end of the last file name (bug#79528).
+ (1- (point-max))))
(let ((opoint (point))
(used-F (dired-check-switches dired-actual-switches "F" "classi=
fy"))
(eol (line-end-position))
@@ -3964,6 +3986,99 @@ dired-buffer-more-recently-used-p
(memq buffer1 (buffer-list))
(not (memq buffer1 (memq buffer2 (buffer-list))))))
=20
+(defun dired--filename-with-newline-p ()
+ "Check if a file name in this directory has a newline.
+Return non-nil if at least one file name in this directory contains
+either a literal newline or the string \"\\n\")."
+ (save-excursion
+ (goto-char (point-min))
+ (catch 'found
+ (while (not (eobp))
+ (when (dired-move-to-filename)
+ (let ((fn (buffer-substring-no-properties
+ (point) (dired-move-to-end-of-filename))))
+ (when (or (memq 10 (seq-into fn 'list))
+ (string-search "\\n" fn))
+ (throw 'found t))))
+ (forward-line)))))
+
+(defun dired--toggle-b-switch ()
+ "Add or remove `b' switch and redisplay Dired buffer.
+When the current Dired buffer has a file name containing a newline, add
+the `b' switch to the actual switches if it isn't already among them;
+otherwise remove the `b' switch unless it is in `dired-listing-switches'.
+Then redisplay the Dired buffer. This function is called from
+`post-command-hook' in Dired mode buffers."
+ (when (eq major-mode 'dired-mode)
+ (if (dired--filename-with-newline-p)
+ (unless (and dired-actual-switches
+ (dired-switches-escape-p dired-actual-switches))
+ (setq dired-actual-switches (concat dired-actual-switches " -b"=
))
+ (dired-revert))
+ (unless (dired-switches-escape-p dired-listing-switches)
+ (when (and dired-actual-switches
+ (dired-switches-escape-p dired-actual-switches))
+ (setq dired-actual-switches
+ (replace-regexp-in-string "\\( -\\)?b" ""
+ dired-actual-switches))
+ (dired-revert))))))
+
+(defun dired--set-auto-toggle-b-switch (symbol value)
+ "The :set function for user option `dired-auto-toggle-b-switch'."
+ (custom-set-default symbol value)
+ (if value
+ (add-hook 'post-command-hook #'dired--toggle-b-switch nil t)
+ (remove-hook 'post-command-hook #'dired--toggle-b-switch t)
+ (setq dired-actual-switches
+ (replace-regexp-in-string "\\( -\\)?b" ""
+ dired-actual-switches))
+ (dired-revert)))
+
+(defun dired--display-filename-with-newline-warning (dir)
+ "Display a warning if buffer DIR has a file name with a newline."
+ (let ((msg "Literal newline in file name.
+
+This Dired buffer is displaying a file name with a literal embedded
+newline character. Dired cannot perform certain operations, such as
+renaming and deletion, on such files when they are displayed this way.
+You can change the display so that newlines in file names are shown as
+\"\\n\". Then the corresponding file listings occupy a single line and
+you can execute all applicable Dired operations on them.
+
+To change the display of newlines in file names temporarily, enter
+`%s' in the minibuffer
+(or click on the highlighted text here). This also displays tab
+characters and spaces in file names as \"\\t\" and \"\\ \",
+respectively. If you edit the file names to delete the newlines, the
+display automatically reverts to showing literal tabs and spaces. You
+can manually restore the literal display by entering (or clicking on)
+`%s'.
+
+To permanently change the display of such characters in file names,
+type (or click on) `%s'
+and then enable (or disable) this user option and save the setting for
+future sessions."))
+ ;; FIXME: How to display *Warnings* buffer with point at start of
+ ;; message instead of at the end? The following does not do this.
+ (let (warning-display-at-bottom)
+ (display-warning
+ 'dired
+ (format-message
+ msg
+ (buttonize "M-: (setopt dired-auto-toggle-b-switch t)"
+ (lambda (_)
+ (with-current-buffer dir
+ (setopt dired-auto-toggle-b-switch t))))
+ (buttonize "M-: (setopt dired-auto-toggle-b-switch nil)"
+ (lambda (_)
+ (with-current-buffer dir
+ (setopt dired-auto-toggle-b-switch nil))))
+ (buttonize "M-x customize-option RET dired-auto-toggle-b-switch R=
ET"
+ (lambda (_) (customize-option 'dired-auto-toggle-b-swi=
tch)))))
+ (with-current-buffer "*Warnings*"
+ (goto-char (search-backward "Warning (dired)"))
+ (set-window-point (selected-window) (point))))))
+
=0C
;;; Deleting files
=20
--=-=-=--
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
Full text available.Received: (at 79528) by debbugs.gnu.org; 13 Oct 2025 15:50:38 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Oct 13 11:50:38 2025 Received: from localhost ([127.0.0.1]:52603 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1v8Koo-0007zT-6e for submit <at> debbugs.gnu.org; Mon, 13 Oct 2025 11:50:38 -0400 Received: from plesklin7.if2.ehiweb.it ([79.98.45.17]:49851 helo=plesklin7.ehiweb.it) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84_2) (envelope-from <pot@HIDDEN>) id 1v8Koc-0007yt-UH for 79528 <at> debbugs.gnu.org; Mon, 13 Oct 2025 11:50:30 -0400 Received: from tucano.isti.cnr.it (tucano.isti.cnr.it [146.48.81.102]) by plesklin7.ehiweb.it (Postfix) with ESMTPSA id EAB0F1CB34F; Mon, 13 Oct 2025 17:50:22 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=potorti.it; s=default; t=1760370623; bh=43gzFJqfRpk0ViDMLmLn7fFVgNd5XTbxAyFqXq7Tm80=; h=Received:From:To:Subject; b=BoPthYVoHVCimMouYCBkd35sJEVYeZAdyrxJYlWeKPPfxFAvG8dwhBxaN6/JPZB8S i9pF77kk3J+TTXBMc0c8+knaF95931dIhpzClBTxGkOePM6zYU+MrZjTaynLb+0TJB Qqaq3KOAmlkegUSf2oScC6mCJ1XZgSQn9oaa2d3Y= Authentication-Results: plesklin7.ehiweb.it; spf=pass (sender IP is 146.48.81.102) smtp.mailfrom=pot@HIDDEN smtp.helo=tucano.isti.cnr.it Received-SPF: pass (plesklin7.ehiweb.it: connection is authenticated) Received: from pot by tucano.isti.cnr.it with local (Exim 4.98.2) (envelope-from <pot@HIDDEN>) id 1v8KoY-00000005HrG-37E9; Mon, 13 Oct 2025 17:50:22 +0200 From: =?utf-8?Q?Francesco_Potort=C3=AC?= <pot@HIDDEN> Date: Mon, 13 Oct 2025 17:50:22 +0200 To: Stephen Berman <stephen.berman@HIDDEN> In-Reply-To: <87cy6qkeke.fsf@HIDDEN> (stephen.berman@HIDDEN) Subject: Re: bug#79528: 30.1; dired errors while handling file names embedding newlines References: <E1v2o26-0000000BTsr-2GVJ@HIDDEN> <87seg6uc71.fsf@HIDDEN> <E1v2oOc-0000000BV25-1pHC@HIDDEN> <87o6quu9tu.fsf@HIDDEN> <86cy73f4ys.fsf@HIDDEN> <87v7kl4qzh.fsf@HIDDEN> <868qhh5x42.fsf@HIDDEN> <87cy6qkeke.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-fingerprint: 4B02 6187 5C03 D6B1 2E31 7666 09DF 2DC9 BE21 6115 Message-Id: <E1v8KoY-00000005HrG-37E9@HIDDEN> X-PPP-Message-ID: <176037062305.3634169.17207825759200280806@HIDDEN> X-PPP-Vhost: potorti.it X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 79528 Cc: Eli Zaretskii <eliz@HIDDEN>, 79528 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) >On Sat, 11 Oct 2025 18:59:12 +0200 Francesco Potort=C3=AC <pot@HIDDEN>= wrote: >> Thank you for working on this issue. This is a user view of what I think >> would be a good behaviour ... Stephen Berman: >This seems like a rather complex UI, and seeing the message each time >and having to answer the question could be annoying. I fear my message was confusing, as this looks a simple interface to me. W= hether it is easy to detect am embedded newline is another matter. Trying = to reformulate: Each time an operation is requested on any file, Dired checks whether the f= ile name contains a newline. If it does, Dired will not perform the reques= ted action, but rather asks this question: |Dired cannot perform the requested action, because the file name contains = a newline. |Dired can redisplay the directory using the -b option to ls, which has the= effect of quoting |all spaces for all files in the directory. After redisplay, you can issue= the command again. | |Do you want to launch Dired now using the -b flag to ls? In other words, rather than erroring out as Dired does now, the above quest= ion is asked. If the user answers no, Dired does nothing. If the user ans= wers yes, Dired redisplays with -b and does nothing more. If redisplaying using the -b flag is too complex, or if you think it isn't = worth doing that, then Dired can just display a warning and do nothing else= , like this: |Dired cannot perform the requested action, because the file name contains = a newline. |You can call Dired with the -b option to ls, which has the effect of quoti= ng |all spaces for all files in the directory. After redisplay, you can issue= the command again. |Use C-u M-x dired to do that.
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
Full text available.Received: (at 79528) by debbugs.gnu.org; 13 Oct 2025 15:42:32 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Mon Oct 13 11:42:32 2025 Received: from localhost ([127.0.0.1]:52592 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1v8Kgx-0007Xh-Ub for submit <at> debbugs.gnu.org; Mon, 13 Oct 2025 11:42:32 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55186) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1v8Kgt-0007X4-Mx for 79528 <at> debbugs.gnu.org; Mon, 13 Oct 2025 11:42:29 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1v8Kgm-00072Y-GM; Mon, 13 Oct 2025 11:42:20 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=SUgYqDNwl3/ZSymQwgLWGuYA+ThVXPIHriYK1XqeyLY=; b=HadWVrU6p1xM Qy/jKEiSv4HJX2wZlaw2cpdKR775H+1kkzCoL574aQfh3N7rEyov+nk87vO5tJPLuLRkrXwhO9+uq pNVxFB4HBjfSUvsYW6MCy+aAfoRYksVTKeyzQNf/NF+dDmoTy7oVHVwf8NHbnn7mqGGnF8GHUx847 7OjuNdFNq38pv6+OVwz4HUwJy5w/BKXynKGzqDKyiWZHZ7wV4+r3b5F0yrJQSsg/NywaMqXSon1yh DZxcv4mHKFXsk2+ru4dNUelrWKDwr0g86JD1Dp/Z+hN3UpSTMkcoWV9mNX6cI9mCtMX5ssCozFJTr AteoTUL6G1Ip04chVwFUqQ==; Date: Mon, 13 Oct 2025 18:42:16 +0300 Message-Id: <861pn64xlz.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Stephen Berman <stephen.berman@HIDDEN> In-Reply-To: <87cy6qkeke.fsf@HIDDEN> (message from Stephen Berman on Mon, 13 Oct 2025 17:26:57 +0200) Subject: Re: bug#79528: 30.1; dired errors while handling file names embedding newlines References: <E1v2o26-0000000BTsr-2GVJ@HIDDEN> <87seg6uc71.fsf@HIDDEN> <E1v2oOc-0000000BV25-1pHC@HIDDEN> <87o6quu9tu.fsf@HIDDEN> <86cy73f4ys.fsf@HIDDEN> <87v7kl4qzh.fsf@HIDDEN> <868qhh5x42.fsf@HIDDEN> <87cy6qkeke.fsf@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 79528 Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > From: Stephen Berman <stephen.berman@HIDDEN> > Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org > Date: Mon, 13 Oct 2025 17:26:57 +0200 > > On Sat, 11 Oct 2025 17:30:53 +0300 Eli Zaretskii <eliz@HIDDEN> wrote: > > >> From: Stephen Berman <stephen.berman@HIDDEN> > >> Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org > >> Date: Sat, 11 Oct 2025 13:28:34 +0200 > >> > >> > I'm okay with something like that, but could the code make sure we > >> > indeed have a file name with an embedded newline? It looks to me like > >> > the above is a somewhat far-fetched conjecture, and if so, the > >> > user-friendly error message might be inaccurate. > >> > >> After looking into this issue more closely, I think the situation is > >> unclear and somewhat complex; however, to avoid opening a can of worms > >> in this bug thread, for now I'll assume you're right. In that case, I > >> think this patch addresses your concern: > > > > LGTM, thanks. I think we should install this. > > Unfortunately, I didn't adequately test that patch. It turns out that > if a directory contains both a file whose name has a newline and a file > whose name does not have a newline and in the default display of this > directory the latter file is the last one, then visiting this directory > in Dired does not signal an error. Morever, typing "R" on the first > file listing (with the newline) also does not signal an error (but > renaming fails with a file-missing error), while typing "R" on the last > file (without the newline) does signal a wrong-type-argument error. The > reason for these observations has to do with the "can of worms" I > referred to above; I still don't want to go into that here, but my > conclusion is that it is not sufficient to test only whether the current > file name in the Dired listing contains a newline; rather, it is > necessary to test whether there is at least one file in the directory > whose name contains a newline. I've implemented a function that does > that in the attached patch. > > However, such a check is not needed to avoid the wrong-type-argument > error; instead, I found a simple way: in the definition of > `dired-move-to-end-of-filename', if there is no change in the > `dired-filename' text property, just use the position before the last > newline in the buffer as the end of the file name. I already did this > in my previous patch when checking for a newline in the file name, but > it turns out to be sufficient irrespective of the newline check (the > reason has to do again with the "can of worms"...). With this change > all dired-* ERT tests still pass (though I'm sure that's because the > current tests do not consider cases where there is no change in the > `dired-filename' text property; if the attached patch is accepted, I > will try to add relevant tests). > > Although this simple change avoids the errors reported in this bug, > there are still problems with literal newlines in file names in Dired > buffers, e.g, renaming and deleting fail as above with a file-missing > error. So I think redisplaying the Dired buffer using the -b switch, > which I believe does not have such problems, is still worth doing. > > >> But I think we can do better than signalling an error and giving it a > >> more helpful message. If we think that the best way for Dired to handle > >> file names containing newlines is to use the -b switch, we can have > >> Emacs automatically redisplay the Dired buffer using that switch when it > >> detects such a file name. The following patch does this: > > > > AFAIR, using -b has some unpleasant consequences in other cases (if it > > didn't, we ought to include -b in the default value of the switches), > > so I wouldn't apply it automatically. > > How about if it's enabled by setting a user option? The attached patch > does that. > > >> In my initial testing I haven't noticed serious problem with this patch, > >> but there is a minor issue: If the directory contains both a file whose > >> name contains a newline and one whose name contains a space, using -b > >> adds an escape before the space; if the newline (displayed as `\n') is > >> removed from the name of the first file, the backslash remains before > >> the space, because the -b switch is still in effect, though after > >> killing the Dired buffer and revisiting it, the backslash is gone. > > > > This is one unpleasant consequence of using -b, but there are others > > (I just don't remember them ATM). > > Another one I found is file names with a tab character, displayed as > `\t' with -b but as a space without -b. > > >> If this is deemed unacceptable, I'll try to fix it. > > > > I'm not sure it's worth your time, but feel free to try, of course. > > I came up with a function that, when all newlines in file names are > removed, automatically removes the -b switch from the actual switches > and redisplays the Dired buffer, so names with spaces or tabs are shown > just with spaces, i.e., no backslash or `\t'. (Again, as with adding > -b, removing it is conditioned by enabling the user option.) Thanks. I don't ATM have time to try this, so if you think the code is solid, feel free to install the changes, and let's see if it causes any regressions or unwanted consequences.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#79528: 30.1; dired errors while handling file names
embedding newlines
In-Reply-To: <868qhh5x42.fsf@HIDDEN>
References: <E1v2o26-0000000BTsr-2GVJ@HIDDEN>
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Date: Mon, 13 Oct 2025 17:26:57 +0200
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--=-=-=
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
On Sat, 11 Oct 2025 17:30:53 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
>> From: Stephen Berman <stephen.berman@HIDDEN>
>> Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org
>> Date: Sat, 11 Oct 2025 13:28:34 +0200
>>=20
>> > I'm okay with something like that, but could the code make sure we
>> > indeed have a file name with an embedded newline? It looks to me like
>> > the above is a somewhat far-fetched conjecture, and if so, the
>> > user-friendly error message might be inaccurate.
>>=20
>> After looking into this issue more closely, I think the situation is
>> unclear and somewhat complex; however, to avoid opening a can of worms
>> in this bug thread, for now I'll assume you're right. In that case, I
>> think this patch addresses your concern:
>
> LGTM, thanks. I think we should install this.
Unfortunately, I didn't adequately test that patch. It turns out that
if a directory contains both a file whose name has a newline and a file
whose name does not have a newline and in the default display of this
directory the latter file is the last one, then visiting this directory
in Dired does not signal an error. Morever, typing "R" on the first
file listing (with the newline) also does not signal an error (but
renaming fails with a file-missing error), while typing "R" on the last
file (without the newline) does signal a wrong-type-argument error. The
reason for these observations has to do with the "can of worms" I
referred to above; I still don't want to go into that here, but my
conclusion is that it is not sufficient to test only whether the current
file name in the Dired listing contains a newline; rather, it is
necessary to test whether there is at least one file in the directory
whose name contains a newline. I've implemented a function that does
that in the attached patch.
However, such a check is not needed to avoid the wrong-type-argument
error; instead, I found a simple way: in the definition of
`dired-move-to-end-of-filename', if there is no change in the
`dired-filename' text property, just use the position before the last
newline in the buffer as the end of the file name. I already did this
in my previous patch when checking for a newline in the file name, but
it turns out to be sufficient irrespective of the newline check (the
reason has to do again with the "can of worms"...). With this change
all dired-* ERT tests still pass (though I'm sure that's because the
current tests do not consider cases where there is no change in the
`dired-filename' text property; if the attached patch is accepted, I
will try to add relevant tests).
Although this simple change avoids the errors reported in this bug,
there are still problems with literal newlines in file names in Dired
buffers, e.g, renaming and deleting fail as above with a file-missing
error. So I think redisplaying the Dired buffer using the -b switch,
which I believe does not have such problems, is still worth doing.
>> But I think we can do better than signalling an error and giving it a
>> more helpful message. If we think that the best way for Dired to handle
>> file names containing newlines is to use the -b switch, we can have
>> Emacs automatically redisplay the Dired buffer using that switch when it
>> detects such a file name. The following patch does this:
>
> AFAIR, using -b has some unpleasant consequences in other cases (if it
> didn't, we ought to include -b in the default value of the switches),
> so I wouldn't apply it automatically.
How about if it's enabled by setting a user option? The attached patch
does that.
>> In my initial testing I haven't noticed serious problem with this patch,
>> but there is a minor issue: If the directory contains both a file whose
>> name contains a newline and one whose name contains a space, using -b
>> adds an escape before the space; if the newline (displayed as `\n') is
>> removed from the name of the first file, the backslash remains before
>> the space, because the -b switch is still in effect, though after
>> killing the Dired buffer and revisiting it, the backslash is gone.
>
> This is one unpleasant consequence of using -b, but there are others
> (I just don't remember them ATM).
Another one I found is file names with a tab character, displayed as
`\t' with -b but as a space without -b.
>> If this is deemed unacceptable, I'll try to fix it.
>
> I'm not sure it's worth your time, but feel free to try, of course.
I came up with a function that, when all newlines in file names are
removed, automatically removes the -b switch from the actual switches
and redisplays the Dired buffer, so names with spaces or tabs are shown
just with spaces, i.e., no backslash or `\t'. (Again, as with adding
-b, removing it is conditioned by enabling the user option.)
On Sat, 11 Oct 2025 18:59:12 +0200 Francesco Potort=C3=AC <pot@HIDDEN> =
wrote:
> Thank you for working on this issue. This is a user view of what I think
> would be a good behaviour. When an operation is requested on a file whose
> name contains a newline, a message appears telling that the file name con=
tains
> a newline, and Dired can redisplay the directory using the -b option to l=
s,
> which has the effect of quoting all spaces for all files in the directory;
> after redisplay, you can issue the command again; do you want to launch D=
ired
> using the -b flag to ls?
This seems like a rather complex UI, and seeing the message each time
and having to answer the question could be annoying. Would setting a
user option as in the attached patch be satisfactory to you? Granted,
that's not as obvious as a message, though it would of course be called
out in NEWS, and perhaps also documented in the Emacs manual.
Anyway, thanks to both of you for the feedback, and I welcome more on
the new patch.
Steve Berman
--=-=-=
Content-Type: text/x-patch
Content-Disposition: attachment
Content-Description: dired file name with newline patch
Content-Transfer-Encoding: quoted-printable
diff --git a/lisp/dired.el b/lisp/dired.el
index 996ca9c23bb..2bf405e371e 100644
=2D-- a/lisp/dired.el
+++ b/lisp/dired.el
@@ -550,6 +550,16 @@ dired-filename-display-length
:group 'dired
:version "30.1")
=20
+(defcustom dired-auto-toggle-b-switch nil
+ "Whether to automatically add or remove the `b' switch.
+If non-nil, the function `dired--toggle-b-switch' (which see) is added
+to `post-command-hook' in Dired mode."
+ :type 'boolean
+ :group 'dired
+ :initialize #'custom-initialize-default
+ :set #'dired--set-auto-toggle-b-switch
+ :version "31.1")
+
=0C
;;; Internal variables
=20
@@ -2852,6 +2862,8 @@ dired-mode
(add-hook 'file-name-at-point-functions #'dired-file-name-at-point nil =
t)
(add-hook 'isearch-mode-hook #'dired-isearch-filenames-setup nil t)
(add-hook 'context-menu-functions 'dired-context-menu 5 t)
+ (when dired-auto-toggle-b-switch
+ (add-hook 'post-command-hook #'dired--toggle-b-switch nil t))
(run-mode-hooks 'dired-mode-hook))
=20
=0C
@@ -3430,7 +3442,14 @@ dired-move-to-end-of-filename
;; On failure, signals an error (with non-nil NO-ERROR just returns nil=
).
;; This is the UNIX version.
(if (get-text-property (point) 'dired-filename)
- (goto-char (next-single-property-change (point) 'dired-filename))
+ (goto-char (or (next-single-property-change (point) 'dired-filename=
)
+ ;; No property change can happen on or before the
+ ;; last file name in the Dired listing when there
+ ;; is at least one prior file name containing a
+ ;; newline. To prevent an error in this case we
+ ;; take the position just before the final newline
+ ;; as the end of the last file name (bug#79528).
+ (1- (point-max))))
(let ((opoint (point))
(used-F (dired-check-switches dired-actual-switches "F" "classi=
fy"))
(eol (line-end-position))
@@ -3964,6 +3983,54 @@ dired-buffer-more-recently-used-p
(memq buffer1 (buffer-list))
(not (memq buffer1 (memq buffer2 (buffer-list))))))
=20
+(defun dired--filename-with-newline-p ()
+ "Check if a file name in this directory has a newline.
+Return non-nil if at least one file name in this directory contains
+either a literal newline or the string \"\\n\")."
+ (save-excursion
+ (goto-char (point-min))
+ (catch 'found
+ (while (not (eobp))
+ (when (dired-move-to-filename)
+ (let ((fn (buffer-substring-no-properties
+ (point) (dired-move-to-end-of-filename))))
+ (when (or (memq 10 (seq-into fn 'list))
+ (string-search "\\n" fn))
+ (throw 'found t))))
+ (forward-line)))))
+
+(defun dired--toggle-b-switch ()
+ "Add or remove `b' switch and redisplay Dired buffer.
+When the current Dired buffer has a file name containing a newline, add
+the `b' switch to the actual switches if it isn't already among them;
+otherwise remove the `b' switch unless it is in `dired-listing-switches'.
+Then redisplay the Dired buffer. This function is called from
+`post-command-hook' in Dired mode buffers."
+ (when (eq major-mode 'dired-mode)
+ (if (dired--filename-with-newline-p)
+ (unless (and dired-actual-switches
+ (dired-switches-escape-p dired-actual-switches))
+ (setq dired-actual-switches (concat dired-actual-switches " -b"=
))
+ (dired-revert))
+ (unless (dired-switches-escape-p dired-listing-switches)
+ (when (and dired-actual-switches
+ (dired-switches-escape-p dired-actual-switches))
+ (setq dired-actual-switches
+ (replace-regexp-in-string "\\( -\\)?b" ""
+ dired-actual-switches))
+ (dired-revert))))))
+
+(defun dired--set-auto-toggle-b-switch (symbol value)
+ "The :set function for user option `dired-auto-toggle-b-switch'."
+ (custom-set-default symbol value)
+ (if value
+ (add-hook 'post-command-hook #'dired--toggle-b-switch nil t)
+ (remove-hook 'post-command-hook #'dired--toggle-b-switch t)
+ (setq dired-actual-switches
+ (replace-regexp-in-string "\\( -\\)?b" ""
+ dired-actual-switches))
+ (dired-revert)))
+
=0C
;;; Deleting files
=20
--=-=-=--
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
Full text available.Received: (at 79528) by debbugs.gnu.org; 11 Oct 2025 16:59:28 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sat Oct 11 12:59:28 2025 Received: from localhost ([127.0.0.1]:46723 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1v7cwJ-0002go-6X for submit <at> debbugs.gnu.org; Sat, 11 Oct 2025 12:59:28 -0400 Received: from plesklin7.if2.ehiweb.it ([79.98.45.17]:39333 helo=plesklin7.ehiweb.it) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84_2) (envelope-from <pot@HIDDEN>) id 1v7cw9-0002g9-9B for 79528 <at> debbugs.gnu.org; Sat, 11 Oct 2025 12:59:20 -0400 Received: from tucano.isti.cnr.it (tucano.isti.cnr.it [146.48.81.102]) by plesklin7.ehiweb.it (Postfix) with ESMTPSA id 138F91CB44F; Sat, 11 Oct 2025 18:59:13 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=potorti.it; s=default; t=1760201953; bh=KEJDN9gJfSzw2R8d9X8McS8ZMl7rIk5XrhtdEMPGaQU=; h=Received:From:To:Subject; b=p3XD/8hlJQ4zPq3KToPNnruoYaZ3N1uzoT7E2LcQahBtz4M0h8/9R1P1Cj+qigqVk NQeUofYJ7QInvg1OkONgHbViWD1MJgPtWlYIjPmO+splSovPRU7M9LDt1PzKtapFfQ f0iJAzyBRhe9QnztnP4A00U0vnUNZgb9iSqpKxzI= Authentication-Results: plesklin7.ehiweb.it; spf=pass (sender IP is 146.48.81.102) smtp.mailfrom=pot@HIDDEN smtp.helo=tucano.isti.cnr.it Received-SPF: pass (plesklin7.ehiweb.it: connection is authenticated) Received: from pot by tucano.isti.cnr.it with local (Exim 4.98.2) (envelope-from <pot@HIDDEN>) id 1v7cw4-00000001Rno-0AoB; Sat, 11 Oct 2025 18:59:12 +0200 From: =?utf-8?Q?Francesco_Potort=C3=AC?= <pot@HIDDEN> Date: Sat, 11 Oct 2025 18:59:12 +0200 To: Stephen Berman <stephen.berman@HIDDEN> In-Reply-To: <87v7kl4qzh.fsf@HIDDEN> (stephen.berman@HIDDEN) Subject: Re: bug#79528: 30.1; dired errors while handling file names embedding newlines References: <E1v2o26-0000000BTsr-2GVJ@HIDDEN> <87seg6uc71.fsf@HIDDEN> <E1v2oOc-0000000BV25-1pHC@HIDDEN> <87o6quu9tu.fsf@HIDDEN> <86cy73f4ys.fsf@HIDDEN> <87v7kl4qzh.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-fingerprint: 4B02 6187 5C03 D6B1 2E31 7666 09DF 2DC9 BE21 6115 Message-Id: <E1v7cw4-00000001Rno-0AoB@HIDDEN> X-PPP-Message-ID: <176020195317.2694817.12509382624098552476@HIDDEN> X-PPP-Vhost: potorti.it X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 79528 Cc: Eli Zaretskii <eliz@HIDDEN>, 79528 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) >>> >>See (info "(emacs) Dired Enter"): >>> >> >>> >> Dired does not handle files that have names with embedded newline >>> >> characters well. If you have many such files, you may consider add= ing >>> >> =E2=80=98-b=E2=80=99 to =E2=80=98dired-listing-switches=E2=80=99. = This will quote all special >>> >> characters and allow Dired to handle them better. (You can also us= e the >>> >> =E2=80=98C-u C-x d=E2=80=99 command to add =E2=80=98-b=E2=80=99 tem= porarily.) Francesco Potort=C3=AC: >>> > But expecting that a user reads the manual after getting an error is = not the >>> > right thing. Consider that I have created such a file because of an = error, >>> > and I just wanted to rename it using dired. So I did not voluntarily= try a >>> > corner case. >>> > >>> > Maybe one could find a way to error with a more helpful message? Stephen Berman: >But I think we can do better than signalling an error and giving it a >more helpful message. If we think that the best way for Dired to handle >file names containing newlines is to use the -b switch, we can have >Emacs automatically redisplay the Dired buffer using that switch when it >detects such a file name. ... >but there is a minor issue: If the directory contains both a file whose >name contains a newline and one whose name contains a space, using -b >adds an escape before the space; if the newline (displayed as `\n') is >removed from the name of the first file, the backslash remains before >the space, because the -b switch is still in effect Thank you for working on this issue. This is a user view of what I think w= ould be a good behaviour. When an operation is requested on a file whose n= ame contains a newline, a message appears telling that the file name contai= ns a newline, and Dired can redisplay the directory using the -b option to = ls, which has the effect of quoting all spaces for all files in the directo= ry; after redisplay, you can issue the command again; do you want to launch= Dired using the -b flag to ls?
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
Full text available.Received: (at 79528) by debbugs.gnu.org; 11 Oct 2025 14:31:46 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sat Oct 11 10:31:46 2025 Received: from localhost ([127.0.0.1]:46548 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1v7adN-0004Z7-Pj for submit <at> debbugs.gnu.org; Sat, 11 Oct 2025 10:31:46 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:38848) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1v7adA-0004Yc-Ej for 79528 <at> debbugs.gnu.org; Sat, 11 Oct 2025 10:31:33 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1v7acz-0002Tc-Gt; Sat, 11 Oct 2025 10:31:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=RMNuu72LTeXwygT8XzZcjgpIrEjJBkp/1xwzV317l2A=; b=mRxS9r4PfvhF a2vgiPpZIlqQn7uOtSHMYcf68BCCdFX3fPXC5nNZ0N5KPHJthk9+94HVWYIhI7SSylsgnG6wRIiwv 9FpJCEiBn1zmVglymUUynta6IyeQS0s3vaxHSOgFdEQyF+1HnjhS/xau1rY4qPugTCb+4mzXXISN8 nQZdhwcQhsBp5UGLMM439+i0+TOQHfyHKQZATueZYN1LMZ8GzLmeddcoFS5i0GGhXZTRn0deu/xRh uVplXoPeOTaxf9gDzuydfd8Lfo+2ZVcdf4TN/3Fk/6YO6dx2awYpIAcR4tti8TzTUCqEqUemUOTCT DmSXGYBkD3dGTNQV4drrUg==; Date: Sat, 11 Oct 2025 17:30:53 +0300 Message-Id: <868qhh5x42.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Stephen Berman <stephen.berman@HIDDEN> In-Reply-To: <87v7kl4qzh.fsf@HIDDEN> (message from Stephen Berman on Sat, 11 Oct 2025 13:28:34 +0200) Subject: Re: bug#79528: 30.1; dired errors while handling file names embedding newlines References: <E1v2o26-0000000BTsr-2GVJ@HIDDEN> <87seg6uc71.fsf@HIDDEN> <E1v2oOc-0000000BV25-1pHC@HIDDEN> <87o6quu9tu.fsf@HIDDEN> <86cy73f4ys.fsf@HIDDEN> <87v7kl4qzh.fsf@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 79528 Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > From: Stephen Berman <stephen.berman@HIDDEN> > Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org > Date: Sat, 11 Oct 2025 13:28:34 +0200 > > > I'm okay with something like that, but could the code make sure we > > indeed have a file name with an embedded newline? It looks to me like > > the above is a somewhat far-fetched conjecture, and if so, the > > user-friendly error message might be inaccurate. > > After looking into this issue more closely, I think the situation is > unclear and somewhat complex; however, to avoid opening a can of worms > in this bug thread, for now I'll assume you're right. In that case, I > think this patch addresses your concern: LGTM, thanks. I think we should install this. > But I think we can do better than signalling an error and giving it a > more helpful message. If we think that the best way for Dired to handle > file names containing newlines is to use the -b switch, we can have > Emacs automatically redisplay the Dired buffer using that switch when it > detects such a file name. The following patch does this: AFAIR, using -b has some unpleasant consequences in other cases (if it didn't, we ought to include -b in the default value of the switches), so I wouldn't apply it automatically. > In my initial testing I haven't noticed serious problem with this patch, > but there is a minor issue: If the directory contains both a file whose > name contains a newline and one whose name contains a space, using -b > adds an escape before the space; if the newline (displayed as `\n') is > removed from the name of the first file, the backslash remains before > the space, because the -b switch is still in effect, though after > killing the Dired buffer and revisiting it, the backslash is gone. This is one unpleasant consequence of using -b, but there are others (I just don't remember them ATM). > If this is deemed unacceptable, I'll try to fix it. I'm not sure it's worth your time, but feel free to try, of course.
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: bug#79528: 30.1; dired errors while handling file names
embedding newlines
In-Reply-To: <86cy73f4ys.fsf@HIDDEN>
References: <E1v2o26-0000000BTsr-2GVJ@HIDDEN>
<87seg6uc71.fsf@HIDDEN> <E1v2oOc-0000000BV25-1pHC@HIDDEN>
<87o6quu9tu.fsf@HIDDEN> <86cy73f4ys.fsf@HIDDEN>
Date: Sat, 11 Oct 2025 13:28:34 +0200
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Content preview: On Sat, 04 Oct 2025 11:26:03 +0300 Eli Zaretskii wrote: >>
Cc: 79528 <at> debbugs.gnu.org >> Date: Sun, 28 Sep 2025 12:53:49 +0200 >> From:
Stephen Berman via "Bug reports for GNU Emacs, >> the Swiss army knife of
text editors" >> >> On Sun, 28 Sep 2025 12:12 [...]
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Content preview: On Sat, 04 Oct 2025 11:26:03 +0300 Eli Zaretskii wrote: >>
Cc: 79528 <at> debbugs.gnu.org >> Date: Sun, 28 Sep 2025 12:53:49 +0200 >> From:
Stephen Berman via "Bug reports for GNU Emacs, >> the Swiss army knife of
text editors" >> >> On Sun, 28 Sep 2025 12:12 [...]
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--=-=-=
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
On Sat, 04 Oct 2025 11:26:03 +0300 Eli Zaretskii <eliz@HIDDEN> wrote:
>> Cc: 79528 <at> debbugs.gnu.org
>> Date: Sun, 28 Sep 2025 12:53:49 +0200
>> From: Stephen Berman via "Bug reports for GNU Emacs,
>> the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN>
>>=20
>> On Sun, 28 Sep 2025 12:12:46 +0200 Francesco Potort=C3=AC <pot@HIDDEN=
t> wrote:
>>=20
>> >>> Emacs starts and errors with 'Wrong type argument: integer-or-marker=
-p, nil'
>> >>>
>> >>> Inside dired, trying to rename the 'b\nc' file fails with the same e=
rror
>> >>
>> >>See (info "(emacs) Dired Enter"):
>> >>
>> >> Dired does not handle files that have names with embedded newline
>> >> characters well. If you have many such files, you may consider addi=
ng
>> >> =E2=80=98-b=E2=80=99 to =E2=80=98dired-listing-switches=E2=80=99. T=
his will quote all special
>> >> characters and allow Dired to handle them better. (You can also use=
the
>> >> =E2=80=98C-u C-x d=E2=80=99 command to add =E2=80=98-b=E2=80=99 temp=
orarily.)
>> >
>> > Ok, thanks. Better than nothing, for sure.
>> >
>> > But expecting that a user reads the manual after getting an error is n=
ot the
>> > right thing. Consider that I have created such a file because of an e=
rror,
>> > and I just wanted to rename it using dired. So I did not voluntarily =
try a
>> > corner case.
>> >
>> > Maybe one could find a way to error with a more helpful message?
>>=20
>> Maybe something like the attached patched?
>>=20
>>=20
>> diff --git a/lisp/dired.el b/lisp/dired.el
>> index 996ca9c23bb..8cad2830395 100644
>> --- a/lisp/dired.el
>> +++ b/lisp/dired.el
>> @@ -3430,7 +3430,10 @@ dired-move-to-end-of-filename
>> ;; On failure, signals an error (with non-nil NO-ERROR just returns n=
il).
>> ;; This is the UNIX version.
>> (if (get-text-property (point) 'dired-filename)
>> - (goto-char (next-single-property-change (point) 'dired-filename))
>> + (let ((nspc (next-single-property-change (point) 'dired-filename)=
))
>> + (if nspc
>> + (goto-char nspc)
>> + (error "Embedded newline in file name; add -b to `dired-listi=
ng-switches'")))
>> (let ((opoint (point))
>> (used-F (dired-check-switches dired-actual-switches "F" "clas=
sify"))
>> (eol (line-end-position))
>
> I'm okay with something like that, but could the code make sure we
> indeed have a file name with an embedded newline? It looks to me like
> the above is a somewhat far-fetched conjecture, and if so, the
> user-friendly error message might be inaccurate.
After looking into this issue more closely, I think the situation is
unclear and somewhat complex; however, to avoid opening a can of worms
in this bug thread, for now I'll assume you're right. In that case, I
think this patch addresses your concern:
--=-=-=
Content-Type: text/x-patch
Content-Disposition: attachment;
filename=dired-move-to-end-of-filename_0.diff
diff --git a/lisp/dired.el b/lisp/dired.el
index 996ca9c23bb..1454f22bdab 100644
--- a/lisp/dired.el
+++ b/lisp/dired.el
@@ -3430,7 +3430,19 @@ dired-move-to-end-of-filename
;; On failure, signals an error (with non-nil NO-ERROR just returns nil).
;; This is the UNIX version.
(if (get-text-property (point) 'dired-filename)
- (goto-char (next-single-property-change (point) 'dired-filename))
+ (let ((nspc (next-single-property-change (point) 'dired-filename))
+ (defdir default-directory))
+ (if nspc
+ (goto-char nspc)
+ ;; No change in the `dired-filename' text property may be due
+ ;; to the file name containing a newline, so in that case
+ ;; signal an error with a helpful message (bug#79528).
+ (when (memq 10
+ (seq-into (buffer-substring-no-properties
+ (dired-move-to-filename) (1- (point-max)))
+ 'list))
+ (error "Embedded newline in file name; add -b to `dired-listing-switches'"))
+ (point)))
(let ((opoint (point))
(used-F (dired-check-switches dired-actual-switches "F" "classify"))
(eol (line-end-position))
--=-=-=
Content-Type: text/plain
But I think we can do better than signalling an error and giving it a
more helpful message. If we think that the best way for Dired to handle
file names containing newlines is to use the -b switch, we can have
Emacs automatically redisplay the Dired buffer using that switch when it
detects such a file name. The following patch does this:
--=-=-=
Content-Type: text/x-patch
Content-Disposition: attachment;
filename=dired-move-to-end-of-filename_1.diff
diff --git a/lisp/dired.el b/lisp/dired.el
index 996ca9c23bb..1a7b00531f8 100644
--- a/lisp/dired.el
+++ b/lisp/dired.el
@@ -3430,7 +3430,31 @@ dired-move-to-end-of-filename
;; On failure, signals an error (with non-nil NO-ERROR just returns nil).
;; This is the UNIX version.
(if (get-text-property (point) 'dired-filename)
- (goto-char (next-single-property-change (point) 'dired-filename))
+ (let ((nspc (next-single-property-change (point) 'dired-filename))
+ (defdir default-directory))
+ (if nspc
+ (goto-char nspc)
+ ;; No change in the `dired-filename' text property may be due
+ ;; to the file name containing a newline, so in that case,
+ ;; instead of signaling an error, redisplay the Dired buffer
+ ;; using the -b switch to use `\n' as the newline character,
+ ;; which does not cause problems for Dired (bug#79528).
+ (when (memq 10
+ (seq-into (buffer-substring-no-properties
+ (dired-move-to-filename) (1- (point-max)))
+ 'list))
+ (unless (dired-switches-escape-p dired-actual-switches)
+ (let ((inhibit-read-only t))
+ (erase-buffer))
+ (dired defdir (concat dired-actual-switches " -b"))
+ ;; Now the Dired text properties are on almost all
+ ;; characters (FIXME: why?), so remove them and then
+ ;; insert them only where they should be.
+ (remove-text-properties
+ (point-min) (point-max)
+ `(mouse-face t dired-filename t help-echo t))
+ (dired-insert-set-properties)))
+ (point)))
(let ((opoint (point))
(used-F (dired-check-switches dired-actual-switches "F" "classify"))
(eol (line-end-position))
--=-=-=
Content-Type: text/plain
In my initial testing I haven't noticed serious problem with this patch,
but there is a minor issue: If the directory contains both a file whose
name contains a newline and one whose name contains a space, using -b
adds an escape before the space; if the newline (displayed as `\n') is
removed from the name of the first file, the backslash remains before
the space, because the -b switch is still in effect, though after
killing the Dired buffer and revisiting it, the backslash is gone. If
this is deemed unacceptable, I'll try to fix it. (I also haven't
figured out why calling `dired' to redisplay the buffer here results in
the Dired text properties appearing on almost every character, hence the
hack of removing and then reapplying them. I welcome any suggestions
for a better fix or to prevent the problem in the first place.)
What do you think of this solution to the newline issue? (As for the
unclarity and complexity I referred to above, I need to investigate the
issue further, and then I'll either open a new bug or post to
emacs-devel to address it.)
Steve Berman
--=-=-=--
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
Full text available.Received: (at 79528) by debbugs.gnu.org; 4 Oct 2025 08:26:14 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sat Oct 04 04:26:13 2025 Received: from localhost ([127.0.0.1]:47770 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1v4xan-00066S-BW for submit <at> debbugs.gnu.org; Sat, 04 Oct 2025 04:26:13 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:38382) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1v4xal-00065d-CU for 79528 <at> debbugs.gnu.org; Sat, 04 Oct 2025 04:26:12 -0400 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1v4xae-0006UM-NH; Sat, 04 Oct 2025 04:26:04 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=MIME-version:References:Subject:In-Reply-To:To:From: Date; bh=c3iUs8GabWAXrYFiBzJ9CZr/c1VK1zpEt6vqVLp5cW4=; b=FC3pipXNqbpvxcQxIdWZ NFfk/rRIo26ZUwRytN60hWsubjXmpcZlRk+WTbptBjPrNZU/MbhiWDW5oIOE6FJ5zQc+jYRKyJMyZ 5gdfQiolRI4grPEc4yqCXVl4QqwK/TMLIjjjmbO3t9aZsxt2ptA5bYea6x586M8MkV/a0dW1CQBSh 2fv/WcYLfmlOKRmJYQU9sM8N5JiyghBGmdGmbaW3NKQK2AdHu/Jl3SOh5w1MQEIjhlQbGkdVPjM0H 70ftxX7+fo2n2d7XQT699Z0Uba+9anGi3OZVyurJuZ9WXQr1AFG492eDKpmON3mo7LX9MZYYpsQwd balGfZCScg8HYw==; Date: Sat, 04 Oct 2025 11:26:03 +0300 Message-Id: <86cy73f4ys.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Stephen Berman <stephen.berman@HIDDEN> In-Reply-To: <87o6quu9tu.fsf@HIDDEN> (bug-gnu-emacs@HIDDEN) Subject: Re: bug#79528: 30.1; dired errors while handling file names embedding newlines References: <E1v2o26-0000000BTsr-2GVJ@HIDDEN> <87seg6uc71.fsf@HIDDEN> <E1v2oOc-0000000BV25-1pHC@HIDDEN> <87o6quu9tu.fsf@HIDDEN> MIME-version: 1.0 Content-type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 79528 Cc: pot@HIDDEN, 79528 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > Cc: 79528 <at> debbugs.gnu.org > Date: Sun, 28 Sep 2025 12:53:49 +0200 > From: Stephen Berman via "Bug reports for GNU Emacs, > the Swiss army knife of text editors" <bug-gnu-emacs@HIDDEN> > > On Sun, 28 Sep 2025 12:12:46 +0200 Francesco Potortì <pot@HIDDEN> wrote: > > >>> Emacs starts and errors with 'Wrong type argument: integer-or-marker-p, nil' > >>> > >>> Inside dired, trying to rename the 'b\nc' file fails with the same error > >> > >>See (info "(emacs) Dired Enter"): > >> > >> Dired does not handle files that have names with embedded newline > >> characters well. If you have many such files, you may consider adding > >> ‘-b’ to ‘dired-listing-switches’. This will quote all special > >> characters and allow Dired to handle them better. (You can also use the > >> ‘C-u C-x d’ command to add ‘-b’ temporarily.) > > > > Ok, thanks. Better than nothing, for sure. > > > > But expecting that a user reads the manual after getting an error is not the > > right thing. Consider that I have created such a file because of an error, > > and I just wanted to rename it using dired. So I did not voluntarily try a > > corner case. > > > > Maybe one could find a way to error with a more helpful message? > > Maybe something like the attached patched? > > > diff --git a/lisp/dired.el b/lisp/dired.el > index 996ca9c23bb..8cad2830395 100644 > --- a/lisp/dired.el > +++ b/lisp/dired.el > @@ -3430,7 +3430,10 @@ dired-move-to-end-of-filename > ;; On failure, signals an error (with non-nil NO-ERROR just returns nil). > ;; This is the UNIX version. > (if (get-text-property (point) 'dired-filename) > - (goto-char (next-single-property-change (point) 'dired-filename)) > + (let ((nspc (next-single-property-change (point) 'dired-filename))) > + (if nspc > + (goto-char nspc) > + (error "Embedded newline in file name; add -b to `dired-listing-switches'"))) > (let ((opoint (point)) > (used-F (dired-check-switches dired-actual-switches "F" "classify")) > (eol (line-end-position)) I'm okay with something like that, but could the code make sure we indeed have a file name with an embedded newline? It looks to me like the above is a somewhat far-fetched conjecture, and if so, the user-friendly error message might be inaccurate. Thanks.
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Francesco =?utf-8?Q?Potort=C3=AC?= <pot@HIDDEN>
Subject: Re: bug#79528: 30.1; dired errors while handling file names
embedding newlines
In-Reply-To: <E1v2oOc-0000000BV25-1pHC@HIDDEN>
References: <E1v2o26-0000000BTsr-2GVJ@HIDDEN>
<87seg6uc71.fsf@HIDDEN> <E1v2oOc-0000000BV25-1pHC@HIDDEN>
Date: Sun, 28 Sep 2025 12:53:49 +0200
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--=-=-=
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
On Sun, 28 Sep 2025 12:12:46 +0200 Francesco Potort=C3=AC <pot@HIDDEN> =
wrote:
>>> Emacs starts and errors with 'Wrong type argument: integer-or-marker-p,=
nil'
>>>
>>> Inside dired, trying to rename the 'b\nc' file fails with the same error
>>
>>See (info "(emacs) Dired Enter"):
>>
>> Dired does not handle files that have names with embedded newline
>> characters well. If you have many such files, you may consider adding
>> =E2=80=98-b=E2=80=99 to =E2=80=98dired-listing-switches=E2=80=99. This=
will quote all special
>> characters and allow Dired to handle them better. (You can also use the
>> =E2=80=98C-u C-x d=E2=80=99 command to add =E2=80=98-b=E2=80=99 tempora=
rily.)
>
> Ok, thanks. Better than nothing, for sure.
>
> But expecting that a user reads the manual after getting an error is not =
the
> right thing. Consider that I have created such a file because of an erro=
r,
> and I just wanted to rename it using dired. So I did not voluntarily try=
a
> corner case.
>
> Maybe one could find a way to error with a more helpful message?
Maybe something like the attached patched?
Steve Berman
--=-=-=
Content-Type: text/x-patch
Content-Disposition: attachment
Content-Description: dired-move-to-end-of-filename patch
diff --git a/lisp/dired.el b/lisp/dired.el
index 996ca9c23bb..8cad2830395 100644
--- a/lisp/dired.el
+++ b/lisp/dired.el
@@ -3430,7 +3430,10 @@ dired-move-to-end-of-filename
;; On failure, signals an error (with non-nil NO-ERROR just returns nil).
;; This is the UNIX version.
(if (get-text-property (point) 'dired-filename)
- (goto-char (next-single-property-change (point) 'dired-filename))
+ (let ((nspc (next-single-property-change (point) 'dired-filename)))
+ (if nspc
+ (goto-char nspc)
+ (error "Embedded newline in file name; add -b to `dired-listing-switches'")))
(let ((opoint (point))
(used-F (dired-check-switches dired-actual-switches "F" "classify"))
(eol (line-end-position))
--=-=-=--
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
Full text available.Received: (at 79528) by debbugs.gnu.org; 28 Sep 2025 10:12:57 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Sep 28 06:12:57 2025 Received: from localhost ([127.0.0.1]:45882 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1v2oOn-0002iy-2a for submit <at> debbugs.gnu.org; Sun, 28 Sep 2025 06:12:57 -0400 Received: from plesklin7.if2.ehiweb.it ([79.98.45.17]:33087 helo=plesklin7.ehiweb.it) by debbugs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.84_2) (envelope-from <pot@HIDDEN>) id 1v2oOg-0002iQ-UP for 79528 <at> debbugs.gnu.org; Sun, 28 Sep 2025 06:12:53 -0400 Received: from tucano.isti.cnr.it (tucano.isti.cnr.it [146.48.81.102]) by plesklin7.ehiweb.it (Postfix) with ESMTPSA id F1E591C0E36; Sun, 28 Sep 2025 12:12:46 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=potorti.it; s=default; t=1759054367; bh=nFsHijVQtE9kF4/LVgfAlgW8FZtL+x+8kldNYghSJTY=; h=Received:From:To:Subject; b=LEU4hWTXoEo8p7LGI4h9BYeupbxQPXleRBZdE6d6LFbeXxvS9sDnUJ5LEEIPRdJEa +ON3EpP2Dj7Sm1+R2luKhBHAl0yEcZM/pFwQICpPYsqO8yxPtfv7cZieIwgt2iJq9Y hj/qDUn0/XlZdvoj618jgpfzOl9GJcHEtNPhyt20= Authentication-Results: plesklin7.ehiweb.it; spf=pass (sender IP is 146.48.81.102) smtp.mailfrom=pot@HIDDEN smtp.helo=tucano.isti.cnr.it Received-SPF: pass (plesklin7.ehiweb.it: connection is authenticated) Received: from pot by tucano.isti.cnr.it with local (Exim 4.98.2) (envelope-from <pot@HIDDEN>) id 1v2oOc-0000000BV25-1pHC; Sun, 28 Sep 2025 12:12:46 +0200 From: =?utf-8?Q?Francesco_Potort=C3=AC?= <pot@HIDDEN> Date: Sun, 28 Sep 2025 12:12:46 +0200 To: Stephen Berman <stephen.berman@HIDDEN> In-Reply-To: <87seg6uc71.fsf@HIDDEN> (stephen.berman@HIDDEN) Subject: Re: bug#79528: 30.1; dired errors while handling file names embedding newlines References: <E1v2o26-0000000BTsr-2GVJ@HIDDEN> <87seg6uc71.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-fingerprint: 4B02 6187 5C03 D6B1 2E31 7666 09DF 2DC9 BE21 6115 Message-Id: <E1v2oOc-0000000BV25-1pHC@HIDDEN> X-PPP-Message-ID: <175905436708.3221755.18305812173229627362@HIDDEN> X-PPP-Vhost: potorti.it X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: 79528 Cc: 79528 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) >> Emacs starts and errors with 'Wrong type argument: integer-or-marker-p, = nil' >> >> Inside dired, trying to rename the 'b\nc' file fails with the same error > >See (info "(emacs) Dired Enter"): > > Dired does not handle files that have names with embedded newline > characters well. If you have many such files, you may consider adding > =E2=80=98-b=E2=80=99 to =E2=80=98dired-listing-switches=E2=80=99. This = will quote all special > characters and allow Dired to handle them better. (You can also use the > =E2=80=98C-u C-x d=E2=80=99 command to add =E2=80=98-b=E2=80=99 temporar= ily.) Ok, thanks. Better than nothing, for sure. But expecting that a user reads the manual after getting an error is not th= e right thing. Consider that I have created such a file because of an erro= r, and I just wanted to rename it using dired. So I did not voluntarily tr= y a corner case. Maybe one could find a way to error with a more helpful message? =2D- fp
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: Francesco =?utf-8?Q?Potort=C3=AC?= <pot@HIDDEN>
Subject: Re: bug#79528: 30.1; dired errors while handling file names
embedding newlines
In-Reply-To: <E1v2o26-0000000BTsr-2GVJ@HIDDEN>
References: <E1v2o26-0000000BTsr-2GVJ@HIDDEN>
Date: Sun, 28 Sep 2025 12:02:42 +0200
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On Sun, 28 Sep 2025 11:49:30 +0200 Francesco Potort=C3=AC <pot@HIDDEN> =
wrote:
> The simpleset recipe to reproduce is (from shell prompt):
>
> $ mkdir a
> $ touch a/'b
> c'
> $ emacs -Q -nw a
>
> Emacs starts and errors with 'Wrong type argument: integer-or-marker-p, n=
il'
>
> Inside dired, trying to rename the 'b\nc' file fails with the same error
See (info "(emacs) Dired Enter"):
Dired does not handle files that have names with embedded newline
characters well. If you have many such files, you may consider adding
=E2=80=98-b=E2=80=99 to =E2=80=98dired-listing-switches=E2=80=99. This w=
ill quote all special
characters and allow Dired to handle them better. (You can also use the
=E2=80=98C-u C-x d=E2=80=99 command to add =E2=80=98-b=E2=80=99 temporari=
ly.)
Steve Bermn
bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
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(Exim 4.98.2) (envelope-from <pot@HIDDEN>) id 1v2o26-0000000BTsr-2GVJ for bug-gnu-emacs@HIDDEN; Sun, 28 Sep 2025 11:49:30 +0200 From: =?utf-8?Q?Francesco_Potort=C3=AC?= <pot@HIDDEN> Date: Sun, 28 Sep 2025 11:49:30 +0200 To: bug-gnu-emacs@HIDDEN Subject: 30.1; dired errors while handling file names embedding newlines X-Debbugs-Cc: MIME-Version: 1.0 Content-Type: text/plain X-fingerprint: 4B02 6187 5C03 D6B1 2E31 7666 09DF 2DC9 BE21 6115 Message-Id: <E1v2o26-0000000BTsr-2GVJ@HIDDEN> X-PPP-Message-ID: <175905297094.3215253.742836433267780534@HIDDEN> X-PPP-Vhost: potorti.it Received-SPF: pass client-ip=79.98.45.17; envelope-from=pot@HIDDEN; helo=plesklin7.ehiweb.it X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, DKIM_INVALID=0.1, DKIM_SIGNED=0.1, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-Spam-Score: 0.0 (/) X-Debbugs-Envelope-To: submit X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.0 (-) The simpleset recipe to reproduce is (from shell prompt): $ mkdir a $ touch a/'b c' $ emacs -Q -nw a Emacs starts and errors with 'Wrong type argument: integer-or-marker-p, nil' Inside dired, trying to rename the 'b\nc' file fails with the same error -- fp In GNU Emacs 30.1 (build 2, x86_64-pc-linux-gnu, X toolkit, cairo version 1.18.4, Xaw3d scroll bars) of 2025-08-26, modified by Debian built on sbuild Windowing system distributor 'The X.Org Foundation', version 11.0.12101016 System Description: Debian GNU/Linux forky/sid Configured using: 'configure --build x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib --libexecdir=/usr/libexec --localstatedir=/var/lib --infodir=/usr/share/info --mandir=/usr/share/man --with-libsystemd --with-pop=yes --enable-locallisppath=/etc/emacs:/usr/local/share/emacs/30.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/30.1/site-lisp:/usr/share/emacs/site-lisp --with-sound=alsa --without-gconf --with-mailutils --build x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib --libexecdir=/usr/libexec --localstatedir=/var/lib --infodir=/usr/share/info --mandir=/usr/share/man --with-libsystemd --with-pop=yes --enable-locallisppath=/etc/emacs:/usr/local/share/emacs/30.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/30.1/site-lisp:/usr/share/emacs/site-lisp --with-sound=alsa --without-gconf --with-mailutils --with-x=yes --with-x-toolkit=lucid --with-toolkit-scroll-bars --without-gsettings 'CFLAGS=-g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/emacs-30.1+1=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection -Wall' 'CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2' LDFLAGS=-Wl,-z,relro' Configured features: ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM HARFBUZZ JPEG LCMS2 LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER WEBP X11 XAW3D XDBE XIM XINPUT2 XPM LUCID ZLIB Important settings: value of $LC_COLLATE: it_IT.UTF-8 value of $LC_CTYPE: it_IT.UTF-8 value of $LC_NUMERIC: C value of $LANG: C.UTF-8 value of $XMODIFIERS: @im=ibus locale-coding-system: utf-8-unix Major mode: Shell Minor modes in effect: TeX-PDF-mode: t csv-field-index-mode: t server-mode: t desktop-save-mode: t epa-global-mail-mode: t shell-dirtrack-mode: t comint-fontify-input-mode: t openwith-mode: t display-time-mode: t tooltip-mode: t show-paren-mode: t electric-indent-mode: t mouse-wheel-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t minibuffer-regexp-mode: t column-number-mode: t line-number-mode: t indent-tabs-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t Load-path shadows: /usr/share/emacs/site-lisp/elpa/debian-el-37.19/debian-autoloads hides /usr/share/emacs/site-lisp/elpa/gnuplot-0.8.1/debian-autoloads /usr/share/emacs/site-lisp/elpa/apache-mode-2.2.0/apache-mode hides /usr/share/emacs/site-lisp/elpa-src/apache-mode-2.2.0/apache-mode 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/usr/share/emacs/site-lisp/elpa-src/bm-202506/bm /usr/share/emacs/site-lisp/elpa/boxquote-2.3/boxquote-autoloads hides /usr/share/emacs/site-lisp/elpa-src/boxquote-2.3/boxquote-autoloads /usr/share/emacs/site-lisp/elpa/boxquote-2.3/boxquote-pkg hides /usr/share/emacs/site-lisp/elpa-src/boxquote-2.3/boxquote-pkg /usr/share/emacs/site-lisp/elpa/boxquote-2.3/boxquote hides /usr/share/emacs/site-lisp/elpa-src/boxquote-2.3/boxquote /usr/share/emacs/site-lisp/elpa/browse-kill-ring-2.0.0/browse-kill-ring hides /usr/share/emacs/site-lisp/elpa-src/browse-kill-ring-2.0.0/browse-kill-ring /usr/share/emacs/site-lisp/elpa/browse-kill-ring-2.0.0/browse-kill-ring-pkg hides /usr/share/emacs/site-lisp/elpa-src/browse-kill-ring-2.0.0/browse-kill-ring-pkg /usr/share/emacs/site-lisp/elpa/browse-kill-ring-2.0.0/browse-kill-ring-autoloads hides /usr/share/emacs/site-lisp/elpa-src/browse-kill-ring-2.0.0/browse-kill-ring-autoloads /usr/share/emacs/site-lisp/elpa/color-theme-modern-0.0.2/jonadabian-slate-theme hides /usr/share/emacs/site-lisp/elpa-src/color-theme-modern-0.0.2/jonadabian-slate-theme /usr/share/emacs/site-lisp/elpa/color-theme-modern-0.0.2/aalto-dark-theme hides /usr/share/emacs/site-lisp/elpa-src/color-theme-modern-0.0.2/aalto-dark-theme /usr/share/emacs/site-lisp/elpa/color-theme-modern-0.0.2/whateveryouwant-theme hides /usr/share/emacs/site-lisp/elpa-src/color-theme-modern-0.0.2/whateveryouwant-theme /usr/share/emacs/site-lisp/elpa/color-theme-modern-0.0.2/blue-eshell-theme hides /usr/share/emacs/site-lisp/elpa-src/color-theme-modern-0.0.2/blue-eshell-theme /usr/share/emacs/site-lisp/elpa/color-theme-modern-0.0.2/parus-theme hides /usr/share/emacs/site-lisp/elpa-src/color-theme-modern-0.0.2/parus-theme /usr/share/emacs/site-lisp/elpa/color-theme-modern-0.0.2/snow-theme hides /usr/share/emacs/site-lisp/elpa-src/color-theme-modern-0.0.2/snow-theme /usr/share/emacs/site-lisp/elpa/color-theme-modern-0.0.2/jsc-light-theme hides 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/usr/share/emacs/site-lisp/auctex/plain-tex hides /usr/share/auctex/plain-tex /usr/share/emacs/site-lisp/auctex/font-latex hides /usr/share/auctex/font-latex /usr/share/emacs/site-lisp/auctex/tex-ispell hides /usr/share/auctex/tex-ispell /usr/share/emacs/site-lisp/auctex/context-nl hides /usr/share/auctex/context-nl /usr/share/emacs/site-lisp/auctex/tex-font hides /usr/share/auctex/tex-font /usr/share/emacs/site-lisp/auctex/tex-bar hides /usr/share/auctex/tex-bar /usr/share/emacs/site-lisp/auctex/context-en hides /usr/share/auctex/context-en /usr/share/emacs/site-lisp/auctex/latex-flymake hides /usr/share/auctex/latex-flymake /usr/share/emacs/site-lisp/auctex/tex hides /usr/share/auctex/tex /usr/share/emacs/site-lisp/auctex/texmathp hides /usr/share/auctex/texmathp /usr/share/emacs/site-lisp/auctex/tex-info hides /usr/share/auctex/tex-info /usr/share/emacs/site-lisp/auctex/latex hides /usr/share/auctex/latex /usr/share/emacs/site-lisp/auctex/tex-fold hides /usr/share/auctex/tex-fold /usr/share/emacs/site-lisp/auctex/tex-jp hides /usr/share/auctex/tex-jp Features: (shadow mailalias emacsbug wdired memory-report macros timezone rmailsort rmailedit tabify misearch multi-isearch zoom-frm frame-cmds frame-fns avoid face-remap cal-julian gnutls network-stream url-http url-gw nsm generic url-cache url-auth vc-hg vc-bzr vc-src vc-sccs vc-svn vc-cvs vc bug-reference font-latex tex-mode vc-git diff-mode track-changes vc-dispatcher latex edmacro latex-flymake flymake tex-ispell tex-style tex dbus crm texmathp bibtex mhtml-mode css-mode eww url-queue mm-url gnus nnheader range js c-ts-common imenu cc-mode cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs sgml-mode facemenu conf-mode rmailout rmailkwd shr-color time-stamp csv-mode sort server octave texinfo texinfo-loaddefs vc-filewise vc-rcs log-view easy-mmode pcvs-util python project compat textsec uni-scripts idna-mapping ucs-normalize uni-confusable textsec-check shr pixel-fill kinsoku url-file svg xml dom qp rmailmm message puny rfc822 mml mml-sec gnus-util mm-decode mm-bodies mm-encode mailabbrev gmm-utils mailheader mail-parse rfc2231 yank-media markdown-mode color compile text-property-search cus-start desktop frameset term/screen term/xterm xterm pot skeleton pcase rmailsum ffap ange-ftp rmail sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr epa-mail mail-utils epa derived epg rfc6068 epg-config org ob ob-tangle ob-ref ob-lob ob-table ob-exp org-macro org-src sh-script smie treesit executable ob-comint org-pcomplete org-list org-footnote org-faces org-entities noutline outline ob-emacs-lisp ob-core ob-eval org-cycle org-table ol org-fold org-fold-core org-keys oc org-loaddefs thingatpt find-func org-version org-compat org-macs kmacro view mule-util cal-china lunar solar cal-dst cal-bahai cal-islam cal-hebrew appt diary-lib diary-loaddefs holidays holiday-loaddefs cal-menu calendar cal-loaddefs tramp trampver tramp-integration files-x tramp-message tramp-compat xdg shell pcomplete comint ansi-osc ring parse-time iso8601 time-date format-spec tramp-loaddefs diff visual-fill-column dired-aux image-mode exif openwith anything-config anything advice woman man cl hi-lock locate add-log scroll-in-place comp comp-cstr cl-extra warnings comp-run comp-common rx ansi-color time jka-compr quail help-mode dired-x generic-x shell-apt disp-table finder-inf w3m-load tex-site cus-edit pp cus-load wid-edit elmacro-autoloads dash-autoloads s-autoloads info apache-mode-autoloads bar-cursor-autoloads bm-autoloads boxquote-autoloads browse-kill-ring-autoloads color-theme-modern-autoloads csv-mode-autoloads debian-el-autoloads debian-el dired dired-loaddefs diminish-autoloads eproject-autoloads folding-autoloads gnuplot-autoloads graphviz-dot-mode-autoloads helm-autoloads helm-core-autoloads async-autoloads initsplit-autoloads markdown-mode-autoloads mutt-alias-autoloads muttrc-mode-autoloads php-mode-autoloads pod-mode-autoloads session-autoloads tabbar-autoloads package browse-url url url-proxy url-privacy url-expand url-methods url-history url-cookie generate-lisp-file url-domsuf url-util mailcap url-handlers url-parse auth-source cl-seq eieio eieio-core cl-macs icons password-cache json subr-x map byte-opt gv bytecomp byte-compile url-vars cl-loaddefs cl-lib rmc iso-transl tooltip cconv eldoc paren electric uniquify ediff-hook vc-hooks lisp-float-type elisp-mode mwheel term/x-win x-win term/common-win x-dnd touch-screen tool-bar dnd fontset image regexp-opt fringe tabulated-list replace newcomment text-mode lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu timer select scroll-bar mouse jit-lock font-lock syntax font-core term/tty-colors frame minibuffer nadvice seq simple cl-generic indonesian philippine cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite emoji-zwj charscript charprop case-table epa-hook jka-cmpr-hook help abbrev obarray oclosure cl-preloaded button loaddefs theme-loaddefs faces cus-face macroexp files window text-properties overlay sha1 md5 base64 format env code-pages mule custom widget keymap hashtable-print-readable backquote threads dbusbind inotify lcms2 dynamic-setting font-render-setting cairo x-toolkit xinput2 x multi-tty move-toolbar make-network-process native-compile emacs) Memory information: ((conses 16 1188105 317955) (symbols 48 56729 0) (strings 32 309016 24482) (string-bytes 1 10428425) (vectors 16 101881) (vector-slots 8 2317830 341413) (floats 8 945 14577) (intervals 56 28266 1740) (buffers 992 147))
Francesco Potortì <pot@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#79528; Package emacs.
Full text available.
GNU bug tracking system
Copyright (C) 1999 Darren O. Benham,
1997 nCipher Corporation Ltd,
1994-97 Ian Jackson.