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bug#68893: 30.0.50; pixel-fill-region errors when folding message header
From: |
Stephen Berman |
Subject: |
bug#68893: 30.0.50; pixel-fill-region errors when folding message headers in Gnus |
Date: |
Fri, 02 Feb 2024 20:35:29 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) |
On Fri, 02 Feb 2024 17:52:48 +0200 Eli Zaretskii <eliz@gnu.org> wrote:
> merge 68893 67791
> thanks
>
>> Date: Fri, 02 Feb 2024 16:33:00 +0100
>> From: Stephen Berman via "Bug reports for GNU Emacs,
>> the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
>>
>> When I type `t' (gnus-summary-toggle-header) on many (but not all)
>> articles in the Gnus Summary buffer, I get an error in pixel-fill-region
>> that the indentation is wider than the fill width. I can reproduce the
>> error as follows:
>>
>> 0. emacs -Q
>> 1. Enable debug-on-error.
>> 2. M-x gnus, type `y' at the prompt, then type `B RET news.gmane.io
>> RET', then `C-s emacs.bugs RET RET 1 RET' to enter the Gnus Summary
>> buffer showing the latest article in the gnu.emacs.bugs group. Then
>> type `j' and at the prompt paste the following Message-ID (of an
>> article that reliably induces the error) into the minibuffer:
>> <CALDnm52NYEfCacWrCxi1JywLZ6O5rRRkx9H9qAod5DcM9ayJ-w@mail.gmail.com>
>> 3. Type `t'. This raises an error and produces the following backtrace:
>
> This is another duplicate of bug#67791. Please see there for the
> analysis and the proposed solutions.
Ah, I actually had seen that report and also the recent other one that
you merged with it, but unfortunately I didn't remember them when I
encountered the issue myself today. Thanks for the pointer. And
indeed, not only does Katsumi Yamaoka's patch to
gnus-article-treat-fold-headers fix the problem for me too, but also
your suggestion to apply the fix to pixel-fill-region instead, as in the
following patch, works just as well:
txtMzHhiuwJv0.txt
Description: pixel-fill-region patch
(I also tried your suggestion to use buffer-text-pixel-size in place of
window-text-pixel-size in pixel-fill-region, and while that prevented
the error, it resulted in irregular and very large indentation of the
continuations of overlong headers, and I didn't immediately see an easy
way to avoid that.)
Steve Berman