Article View: gnu.emacs.bug
Article #99064Redisplay bug
From: Eric Hanchrow
Date: Sat, 08 Dec 1990 02:07
Date: Sat, 08 Dec 1990 02:07
52 lines
2858 bytes
2858 bytes
I've noticed this bug for a long time, but I've never been able to
reproduce it -- until now.
GNU Emacs 18.55.2 of Wed Jan 3 1990 on ptl (berkeley-unix)
Epoch 18.55.2 of Mon Nov 19 1990 on ptl (berkeley-unix).
Here's a description in English of how to reproduce it.
Remove all but one window (delete-other-windows).
Put mark somewhere after the beginning of a line, and put point a few
lines down.
Do narrow-to-region. Note that the text on the line that the mark was
on appears to move to the left.
Split the window (split-window-vertically), and switch to another
buffer (switch-to-buffer).
Return to the original window (other-window).
Widen. Note that the text that mark is on does not move back to the
right. This is what I think is a bug. If you do `recenter', the text
does move back, but it seems to me you shouldn't have to recenter;
simply widening should cause the display to update.
Here's a dribble file which will reproduce the problem, in case the
above instructions didn't work.
----------------Dribble file begins after this line----------------
This is pretty colorful, isn't it?
----------------Dribble file ends at the beginning of this line----------------
Here is that same dribble file, after being run through `od -c', in
case the mailers eat the control characters.
0000000 T h i s i s p r e t t y c
0000020 o l o r f u l , i s n ' t i
0000040 t ? \r \r Y o u b e i t i s
0000060 . \r 020 020 020 346 346 346 346 276 030 n y n 030 2
0000100 \b i 030 o 030 w \f 030 023 030 003
0000113
By the way, it there a better way of mailing a dribble file?? Using
`od -c' somehow doesn't feel right, although I couldn't tell you why.
------------------------------------------------------------------------
|Eric Hanchrow |
|Phase III Logic, Inc. cse.ogi.edu!yamada-sun!eric |
|1600 N.W. 167th Place Beaverton, OR 97006-4800 USA |
|Voice: (503)-645-0313 Fax: (503)-645-0207 as of 4-Oct-89|
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: fb2f1,d851798f951abf67,start X-Google-Attributes: gidfb2f1,public X-Google-ArrivalTime: 1990-12-07 18:07:06 PST Path: arc1-ca.pugleaf.net!gmdzi!unido!mcsun!uunet!tut.cis.ohio-state.edu!AI.MIT.EDU!yamada-sun!eric From: yamada-sun!eric@AI.MIT.EDU (Eric Hanchrow) Newsgroups: gnu.emacs.bug Subject: Redisplay bug Message-ID: <9012080207.AA05436@> Date: 8 Dec 90 02:07:06 GMT Sender: daemon@tut.cis.ohio-state.edu Distribution: gnu Organization: GNUs Not Usenet Lines: 52 Approved: bug-gnu-emacs@prep.ai.mit.edu Posted: Sat Dec 8 03:07:06 1990