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bug#6998: 24.0.50; bidi: lines starting with neutral types have the wron
From: |
Eli Zaretskii |
Subject: |
bug#6998: 24.0.50; bidi: lines starting with neutral types have the wrong base direction? |
Date: |
Wed, 22 Sep 2010 10:51:05 +0200 |
> Date: Wed, 22 Sep 2010 05:58:25 +0300
> From: Thamer Mahmoud <thamer.mahmoud@gmail.com>
> Cc: 6998@debbugs.gnu.org
>
> Note that both the crash and the bug (mentioned further below) were
> not reproducible on a virtual Windows XP.
I didn't see the crash yet, but the display bug you mention near the
end of your message is reproducible on my Windows XP box. Thanks.
> To reproduce this crash:
>
> 1. Open attached test case with: emacs -Q --eval "(setq-default
> bidi-display-reordering t)" wrap_crash.org
> It should open in org-mode by default.
>
> 2. Emacs _sometimes_ would render it like this:
>
> * First...
> ...Second *
>
> If not, repeat step one until it does, or use something similar to
> the command I provided in my last message, etc.
"Repeat step one" means invoking Emacs again from the command line?
Or killing the buffer and revisiting wrap_crash.org from the same
Emacs session? If the former, it sounds strange that a new invocation
of Emacs would behave differently from the previous one (unless
there's an uninitialized variable somewhere...).
> As a side bug, if you position cursor on "* First" in the testcase
> then press [TAB] you will see that "* Second" gets deformed to:
>
> d *...
This is related to the ellipsis that Org mode displays instead of
lines it hides. If you type "M-x show-all RET", you will see the same
display bug. I will work on fixing it, but in general, Org mode
should set bidi-paragraph-direction to `left-to-right' in all its
buffers, because using "* FOO" outlines with FOO in left-to-right
script assumes left-to-right paragraphs, and because Org mode does not
enforce an empty line before the "* FOO" lines, making them assume the
direction of the previous paragraph, which looks odd.