[debbugs-tracker] bug#13277: closed (24.2.91; -nw display bug with overlay-arrow)

[GNU bug Tracking System]

Your message dated Thu, 27 Dec 2012 19:32:33 +0200
with message-id <address@hidden>
and subject line Re: bug#13277: 24.2.91; -nw display bug with overlay-arrow
has caused the debbugs.gnu.org bug report #13277,
regarding 24.2.91; -nw display bug with overlay-arrow
to be marked as done.

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-- 
13277: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=13277
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> --- Begin Message ---
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> Subject: 
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> 24.2.91; -nw display bug with overlay-arrow
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> Date: 
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> Tue, 25 Dec 2012 19:13:44 +0100
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> User-agent: 
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> Gnus/5.13 (Gnus v5.13) Emacs/24.2.91 (gnu/linux)
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> This is a regression from emacs 23, already present in 24.1:
>
> $ cat bug.el
> (set (make-local-variable 'overlay-arrow-string) "=>")
> (set (make-local-variable 'overlay-arrow-position) (point-marker))
> ;;(setq truncate-lines t)
> (insert-char ?- (window-width))
> (goto-char (point-min))
> $ emacs -nw -l ./bug.el
>
> The cursor is placed at the right margin.  Either moving forward two
> characters or deleting one character (so that the line fits in the
> window) puts the cursor after the arrow, where it belongs.
>
> Andreas.
>
> -- 
> Andreas Schwab, address@hidden
> GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
> "And now for something completely different."
>
>
>
> --- End Message ---
> --- Begin Message ---
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>
>
> Subject: 
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> Re: bug#13277: 24.2.91; -nw display bug with overlay-arrow
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>
>
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> Date: 
>
> Thu, 27 Dec 2012 19:32:33 +0200
>
>
>
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> > Date: Tue, 25 Dec 2012 21:03:22 +0200
> > From: Eli Zaretskii <address@hidden>
> > Cc: address@hidden
> > 
> > > From: Andreas Schwab <address@hidden>
> > > Date: Tue, 25 Dec 2012 19:13:44 +0100
> > > 
> > > This is a regression from emacs 23, already present in 24.1:
> > > 
> > > $ cat bug.el
> > > (set (make-local-variable 'overlay-arrow-string) "=>")
> > > (set (make-local-variable 'overlay-arrow-position) (point-marker))
> > > ;;(setq truncate-lines t)
> > > (insert-char ?- (window-width))
> > > (goto-char (point-min))
> > > $ emacs -nw -l ./bug.el
> > > 
> > > The cursor is placed at the right margin.  Either moving forward two
> > > characters or deleting one character (so that the line fits in the
> > > window) puts the cursor after the arrow, where it belongs.
> > 
> > It's a consequence of the bidirectional display, under which we can no
> > longer assume that, if point is at position P, and that position is
> > not visible, the cursor should be put on the first visible glyph whose
> > position is >= P.  (In this case, the first 2 characters are obscured
> > by the overlay arrow, and don't appear on the line.)
>
> Should be fixed in revision 111082 on the emacs-24 branch.  (The fix
> is a simple one-liner, and is so obviously correct that it can only
> cause problems if it exposes another bug, so I think it's appropriate
> for the branch.)
>
>
> --- End Message ---