GNU logs - #75415, boring messages

Message sent to monnier@HIDDEN, bug-gnu-emacs@HIDDEN:

Subject: bug#75415: 31.0.50; quoted-printable-en/decode-region doesn't preserve end markers
Resent-From: Stefan Monnier <monnier@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
Resent-CC: monnier@HIDDEN, bug-gnu-emacs@HIDDEN
Resent-Date: Tue, 07 Jan 2025 04:25:02 +0000
Resent-Message-ID: <handler.75415.B.173622387824112 <at> debbugs.gnu.org>
Resent-Sender: help-debbugs@HIDDEN
To: 75415 <at> debbugs.gnu.org
Cc: monnier@HIDDEN
From: Stefan Monnier <monnier@HIDDEN>
Message-ID: <jwvttabmf9f.fsf-monnier+@gnu.org>
Date: Mon, 06 Jan 2025 23:24:15 -0500
MIME-Version: 1.0
Content-Type: text/plain
Received-SPF: pass client-ip=132.204.25.50;
 envelope-from=monnier@HIDDEN; helo=mailscanner.iro.umontreal.ca
X-Spam_score_int: -42
X-Spam_score: -4.3
X-Spam_bar: ----
X-Spam_report: (-4.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,
 DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3,
 RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,
 SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no
X-Spam_action: no action
X-Spam-Score: 0.0 (/)
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 (-)

Package: Emacs
Version: 31.0.50


In a fresh Emacs try:

       (with-temp-buffer
         (set-buffer-multibyte nil)
         (insert "\300\300")
         (encode-coding-region (point-min) (point) 'utf-8)
         (quoted-printable-encode-region (point-min) (point))
         (insert "!!")
         (buffer-string))

It will likely return "=C0!!=C0" whereas it should return "=C0=C0!!".

Found via a bug in VM: https://gitlab.com/emacs-vm/vm/-/issues/491

The same problem plagues `quoted-printable-decode-region`.

I think we really need to introduce a `replace-region` primitive which
takes care of preserving the position of markers instead of having to teach
ELisp coders the delicate art of combining `insert(-before-markers)` and
`delete` to best preserve markers.


        Stefan

Message sent:

Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-Mailer: MIME-tools 5.505 (Entity 5.505)
Content-Type: text/plain; charset=utf-8
X-Loop: help-debbugs@HIDDEN
From: help-debbugs@HIDDEN (GNU bug Tracking System)
To: Stefan Monnier <monnier@HIDDEN>
Subject: bug#75415: Acknowledgement (31.0.50; quoted-printable-en/decode-region
 doesn't preserve end markers)
Message-ID: <handler.75415.B.173622387824112.ack <at> debbugs.gnu.org>
References: <jwvttabmf9f.fsf-monnier+@gnu.org>
X-Gnu-PR-Message: ack 75415
X-Gnu-PR-Package: emacs
Reply-To: 75415 <at> debbugs.gnu.org
Date: Tue, 07 Jan 2025 04:25:02 +0000

Thank you for filing a new bug report with debbugs.gnu.org.

This is an automatically generated reply to let you know your message
has been received.

Your message is being forwarded to the package maintainers and other
interested parties for their attention; they will reply in due course.

As you requested using X-Debbugs-CC, your message was also forwarded to
  monnier@HIDDEN
(after having been given a bug report number, if it did not have one).

Your message has been sent to the package maintainer(s):
 bug-gnu-emacs@HIDDEN

If you wish to submit further information on this problem, please
send it to 75415 <at> debbugs.gnu.org.

Please do not send mail to help-debbugs@HIDDEN unless you wish
to report a problem with the Bug-tracking system.

--=20
75415: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D75415
GNU Bug Tracking System
Contact help-debbugs@HIDDEN with problems

Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#75415: 31.0.50; quoted-printable-en/decode-region doesn't preserve end markers
Resent-From: Stefan Kangas <stefankangas@HIDDEN>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>
Resent-CC: bug-gnu-emacs@HIDDEN
Resent-Date: Tue, 07 Jan 2025 19:46:02 +0000
Resent-Message-ID: <handler.75415.B75415.17362791279367 <at> debbugs.gnu.org>
Resent-Sender: help-debbugs@HIDDEN
To: 75415 <at> debbugs.gnu.org
Cc: monnier@HIDDEN
From: Stefan Kangas <stefankangas@HIDDEN>
In-Reply-To: <jwvttabmf9f.fsf-monnier+@gnu.org>
References: <jwvttabmf9f.fsf-monnier+@gnu.org>
MIME-Version: 1.0
Date: Tue, 7 Jan 2025 13:45:19 -0600
Message-ID: <CADwFkmmNt1kt22BhU969FkK-wGxoWXZwRMbYvE6+pVxtzauDnw@HIDDEN>
Content-Type: text/plain; charset="UTF-8"
Precedence: list
Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org
Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org>

Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of
text editors" <bug-gnu-emacs@HIDDEN> writes:

> I think we really need to introduce a `replace-region` primitive which
> takes care of preserving the position of markers instead of having to teach
> ELisp coders the delicate art of combining `insert(-before-markers)` and
> `delete` to best preserve markers.

Sounds good to me, but would this deserve a separate bug report?

Last modified: Sun, 12 Jan 2025 05:45:02 UTC

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997 nCipher Corporation Ltd, 1994-97 Ian Jackson.