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Re: emacs-21.1.94 crash in gnus on Windows

From: Chong Yidong
Subject: Re: emacs-21.1.94 crash in gnus on Windows
Date: Wed, 24 Mar 2010 17:34:14 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.94 (gnu/linux)

Andreas Schwab <address@hidden> writes:

> This is fundamentally broken.  move_it_to never produces glyphs, so the
> complete glyph row is uninitialized.  This was first broken by this
> change:
> commit 9d73ed0ef33ba0502c03e546a09d175ab35fdc75
> Author: Chong Yidong <address@hidden>
> Date:   Sat Jan 26 01:00:44 2008 +0000
>     (pos_visible_p): Handle the case where charpos falls on
>     invisible text covered with an ellipsis.

Yes, this patch is wrong.  Looking through the archives, it seems to
have been meant to address the problem at


However, looking at that recipe, it seems the problem is actually
handled by my 2009-01-10 (it_method == GET_FROM_DISPLAY_VECTOR) change
instead.  So either my 2008-01-26 change was bogus all along, or some
other change in the meantime made it bogus.

I've reverted it in the branch; thanks for investigating.

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