bug#1201: marked as done (Another overlay display bug)

[Emacs bug Tracking System]

Your message dated Fri, 24 Oct 2008 15:01:08 -0400
with message-id <87mygtn7gr.fsf@cyd.mit.edu>
and subject line Re: Another overlay display bug
has caused the Emacs bug report #1201,
regarding Another overlay display bug
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

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-- 
1201: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=1201
Emacs Bug Tracking System
Contact don@donarmstrong.com with problems
> --- Begin Message ---
>
>
>
> Subject: 
>
> Another overlay display bug
>
>
>
>
> Date: 
>
> Sun, 19 Oct 2008 01:00:55 -0400
>
>
>
>
> Here's another bug that was reported a year ago
> which I think should not be forgotten.
>
> From: Richard Stallman <rms@gnu.org>
> Content-Type: text/plain; charset=ISO-8859-15
> To: emacs-devel@gnu.org
> Subject: Another overlay display bug
> Reply-To: rms@gnu.org
> Message-Id: <E1IjVDM-0001BJ-AH@fencepost.gnu.org>
> Date: Mon, 10 Dec 2007 10:19:14 -0500
>
> Would someone please fix this, then ack?
>
> To: bug-gnu-emacs@gnu.org
> From: Joe Wells <jbw@macs.hw.ac.uk>
> Date: Sat, 20 Oct 2007 06:43:43 +0100
> In-Reply-To: <86k5pi9wrg.fsf@macs.hw.ac.uk> (Joe Wells's message of "Sat\,
>         20 Oct 2007 06\:32\:19 +0100")
> MIME-Version: 1.0
> Content-Type: text/plain; charset=utf-8
> Subject: Re: two display bugs involving interactions between after-string
>         and display properties of adjacent overlays
>
> Joe Wells <jbw@macs.hw.ac.uk> writes:
>
> > Here are two more display bugs I found while trying to improve the
> > code in tex-fold.el in AUCTeX.
>
> Here is a third such bug.
>
> > These bugs involve interactions between after-string and display
> > properties of adjacent overlays.
>
> Ditto.
>
> > I'm assuming this macro in my reproduction code below:
> >
> >   (defmacro test-in-fresh-buffer-and-window (&rest body)
> >     `(progn
> >        (delete-other-windows)
> >        (kill-buffer (get-buffer-create "xyzzy"))
> >        (let ((xyzzy-buf (get-buffer-create "xyzzy")))
> >          (set-buffer xyzzy-buf)
> >          (display-buffer xyzzy-buf)
> >          ,@body
> >          )))
>
> Ditto.
>
> > BUG #1:  ...
>
> > BUG #2:  ...
>
> BUG #3:  An overlay's after-string property is not displayed if an
> immediately following overlay has the empty string as its display
> property.
>
> Reproduce with this expression:
>
>   (test-in-fresh-buffer-and-window
>    (insert "ABCD")
>    (let ((o1 (make-overlay 2 3))
>          (o2 (make-overlay 3 4)))
>      (overlay-put o1 'after-string "1")
>      (overlay-put o2 'display "")))
>
> The above expression should display ?AB1D?.
> The above expression wrongly actually displays ?ABD?.
>
> > ======================================================================
> > In GNU Emacs 22.1.1 (i686-pc-linux-gnu, GTK+ Version 2.8.20) ...
>
> Same details as in last message.
>
> I hope this bug report is helpful.
>
> -- 
> Joe
>
>
>
>
> --- End Message ---
> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: Another overlay display bug
>
>
>
>
> Date: 
>
> Fri, 24 Oct 2008 15:01:08 -0400
>
>
>
>
> I've checked in a fix.
>
>
> --- End Message ---