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From: Glenn Morris <rgm@gnu.org>
To: 9607@debbugs.gnu.org
Cc: David Lawless <david_lawless@flumedata.com>
Subject: bug#9607: incorrect behavior with "auto-hscroll-mode nil" in ncurses/vt220 text operation; wrong in 23 but ok in 22.1
Date: Tue, 27 Sep 2011 00:01:50 -0400	[thread overview]
Message-ID: <gg7h4u8wgh.fsf@fencepost.gnu.org> (raw)
In-Reply-To: <6.2.5.6.2.20110926224200.05af3bc0@flumedata.com> (David Lawless's message of "Mon, 26 Sep 2011 22:43:50 -0400")


Present in 23.2 to 24.0.90 inclusive. Recipe:

emacs -Q --eval '(setq auto-hscroll-mode nil)'

Evaluate:
(dotimes (j 5)
  (insert "\n")
  (dotimes (i 10)
    (insert "0123456890 ")))

Put point at start of first line of digits.
M-x scroll-left RET y
;; Window now scrolled to right-hand end of lines
Down arrow  ; first time is ok
Down arrow
  -> second time window scrolls back to left-hand end of line


(setq line-move-visual nil)

avoids the problem.

I guess it's related to the 2009-07 changes to line-move-visual for hscroll.





  reply	other threads:[~2011-09-27  4:01 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <201109262119.p8QLJ5eU004406@siobhan.>
2011-09-26 21:36 ` bug#9607: David Lawless
2011-09-27  0:33 ` bug#9607: incorrect behavior with "automatic-hscroll-mode nil" in ncurses/vt220 text operation; wrong in 23 but ok in 22.1 Glenn Morris
2011-09-27  0:47   ` David Lawless
2011-09-27  2:29     ` Stefan Monnier
2011-09-27  2:43       ` bug#9607: incorrect behavior with "auto-hscroll-mode " David Lawless
2011-09-27  4:01         ` Glenn Morris [this message]
2011-09-27  6:07           ` Eli Zaretskii
2011-09-29 13:06             ` Eli Zaretskii
2011-09-27  3:10 ` bug#9607: incorrect behavior with "auto-hscroll-mode nil" in ncurses/vt220 text operation; wrong in 23.2 but ok in 23.1 David Lawless

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