From: Eli Zaretskii <eliz@gnu.org>
To: theonewiththeevillook@yahoo.fr
Cc: 17823-done@debbugs.gnu.org
Subject: bug#17823: 24.3.91; end-of-visual-line: incorrect behaviour with truncate-lines and a line-prefix
Date: Sat, 21 Jun 2014 15:36:52 +0300 [thread overview]
Message-ID: <83ionutp5n.fsf@gnu.org> (raw)
In-Reply-To: <83ionvqujt.fsf@gnu.org>
> Date: Fri, 20 Jun 2014 21:56:22 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: 17823@debbugs.gnu.org
>
> > From: Nicolas Richard <theonewiththeevillook@yahoo.fr>
> > Date: Fri, 20 Jun 2014 19:40:24 +0200
> >
> > (progn
> > (insert (make-string 500 ?x))
> > (column-number-mode) ;; just to see it. plays no role.
> > (beginning-of-line)
> > (setq line-prefix (make-string 10 ? ))
> > (visual-line-mode)
> > (toggle-truncate-lines 1))
> >
> > then hit C-e (end-of-visual-line) a few times. After some hits, the
> > cursor doesn't move anymore, although it's not at the end of the line.
> > On my machine, it goes to column 70, then 100, then stops there even
> > when hitting C-e again.
> >
> > I expect emacs to scroll horizontally instead
>
> Why do you expect that? "Visual line" means the line that is on
> display. What isn't on display does not exist for this purpose.
>
> Is there some real-life use case behind this? If so, please show it.
Actually, no, don't bother. I found out that this was due to the
original code in vertical-motion being incorrect due to some subtle
aspect of the display engine which the code ignored.
Fixed in revision 117277 on the emacs-24 branch.
prev parent reply other threads:[~2014-06-21 12:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-20 17:40 bug#17823: 24.3.91; end-of-visual-line: incorrect behaviour with truncate-lines and a line-prefix Nicolas Richard
2014-06-20 18:56 ` Eli Zaretskii
2014-06-20 19:20 ` Stefan Monnier
2014-06-20 20:27 ` Nicolas Richard
2014-06-21 12:36 ` Eli Zaretskii [this message]
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