From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#31666: Bad interaction between visual-line-mode and wrap-prefix on long lines Date: Fri, 01 Jun 2018 11:44:57 +0300 Message-ID: <83y3fygak6.fsf@gnu.org> References: <0c50eeb5-7c99-e8ba-2d0b-865b6617cfe1@live.com> <83fu27hnko.fsf@gnu.org> <99baa6b2-584f-789f-ecf8-d845aedd18ef@live.com> <87fu27bboa.fsf@gmail.com> <878t7zf0qw.fsf@gmx.net> <834lingdxj.fsf@gnu.org> <874liney17.fsf@gmx.net> Reply-To: Eli Zaretskii NNTP-Posting-Host: blaine.gmane.org X-Trace: blaine.gmane.org 1527842647 10770 195.159.176.226 (1 Jun 2018 08:44:07 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Fri, 1 Jun 2018 08:44:07 +0000 (UTC) Cc: clement.pitclaudel@live.com, npostavs@gmail.com, 31666@debbugs.gnu.org To: Stephen Berman Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Fri Jun 01 10:44:03 2018 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fOffG-0002dU-CX for geb-bug-gnu-emacs@m.gmane.org; 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Fri, 01 Jun 2018 04:46:01 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Fri, 01 Jun 2018 08:46:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 31666 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 31666-submit@debbugs.gnu.org id=B31666.152784270923536 (code B ref 31666); Fri, 01 Jun 2018 08:46:01 +0000 Original-Received: (at 31666) by debbugs.gnu.org; 1 Jun 2018 08:45:09 +0000 Original-Received: from localhost ([127.0.0.1]:56786 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fOfgL-00067X-6w for submit@debbugs.gnu.org; Fri, 01 Jun 2018 04:45:09 -0400 Original-Received: from eggs.gnu.org ([208.118.235.92]:55644) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fOfgJ-00067L-PU for 31666@debbugs.gnu.org; Fri, 01 Jun 2018 04:45:08 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fOfg9-00032X-UE for 31666@debbugs.gnu.org; Fri, 01 Jun 2018 04:45:02 -0400 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:37562) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fOfg9-00032L-Q2; Fri, 01 Jun 2018 04:44:57 -0400 Original-Received: from [176.228.60.248] (port=3945 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1fOfg9-0007gB-7a; Fri, 01 Jun 2018 04:44:57 -0400 In-reply-to: <874liney17.fsf@gmx.net> (message from Stephen Berman on Fri, 01 Jun 2018 10:00:52 +0200) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:146808 Archived-At: > From: Stephen Berman > Cc: npostavs@gmail.com, clement.pitclaudel@live.com, 31666@debbugs.gnu.org > Date: Fri, 01 Jun 2018 10:00:52 +0200 > > > It will also have a nasty (IMO) effect, whereby adding or removing a > > character to the "bbb..." part will make the display change between > > this: > > > > aaaaaaaaaaaaaaaa > > bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb > > > > and this: > > > > aaaaaaaaaaaaaaaa bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb > > > > This will cause all the rest of the text below this line to scroll up > > or down, > > But this is what already happens with visual-line-mode enabled... > > > which will require us to disable several redisplay > > optimizations when just one character is inserted/deleted. > > ...or have I misunderstood what you're referring to? Currently, it happens only when a line becomes continued from non-continued. With the above proposal, it will happen even when the line already was continued. > > The usual way of handling these situations is to turn on > > truncate-lines. Any reasons why you don't do that in that mode? > > Especially since we now have horizontal scrolling of just the current > > line? > > I would find it more inconvenient to scroll to see the whole item. Emacs hsrcolls automatically, as you no doubt know. Anyway, that was only a suggestion.