Received: (at 46814) by debbugs.gnu.org; 28 Feb 2021 17:39:58 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sun Feb 28 12:39:58 2021 Received: from localhost ([127.0.0.1]:47143 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1lGQ2w-0007g9-Gf for submit <at> debbugs.gnu.org; Sun, 28 Feb 2021 12:39:58 -0500 Received: from eggs.gnu.org ([209.51.188.92]:59644) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1lGQ2u-0007fr-Oi; Sun, 28 Feb 2021 12:39:57 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]:54336) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1lGQ2f-00012q-6T; Sun, 28 Feb 2021 12:39:41 -0500 Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:4042 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from <eliz@HIDDEN>) id 1lGQ2I-0006Pm-0d; Sun, 28 Feb 2021 12:39:23 -0500 Date: Sun, 28 Feb 2021 19:39:11 +0200 Message-Id: <83mtvom6rk.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: =?utf-8?Q?K=C3=A9vin?= Le Gouguec <kevin.legouguec@HIDDEN> In-Reply-To: <87wnutdupb.fsf@HIDDEN> (message from =?utf-8?Q?K=C3=A9vin?= Le Gouguec on Sat, 27 Feb 2021 23:14:40 +0100) Subject: Re: 26.3; Visual-line-mode produces fake newline if line begins with space References: <CAARdmY0066ERc2+z2S+bFvx1vebZZFB=DOBwy4igY9Ho_-2nXA@HIDDEN> <835z2dnzba.fsf@HIDDEN> <87wnutdupb.fsf@HIDDEN> MIME-version: 1.0 Content-type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 46814 Cc: 46814 <at> debbugs.gnu.org, mvsfrasson@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) merge 46814 31666 thanks > From: Kévin Le Gouguec <kevin.legouguec@HIDDEN> > Cc: "Miguel V. S. Frasson" <mvsfrasson@HIDDEN>, 46814 <at> debbugs.gnu.org > Date: Sat, 27 Feb 2021 23:14:40 +0100 > > > Patches are welcome to implement this. Word of warning: the current > > implementation of this is in C, as part of the display engine, and > > it's very complex. > > Should this be merged with bug#11759 and bug#31666? Yes, I think so. But note that some of the issues reported there were fixed meanwhile, and we nowadays have word-wrap that uses character categories, not just whitespace.
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From: =?utf-8?Q?K=C3=A9vin_Le_Gouguec?= <kevin.legouguec@HIDDEN>
To: Eli Zaretskii <eliz@HIDDEN>
Subject: Re: 26.3; Visual-line-mode produces fake newline if line begins
with space
References: <CAARdmY0066ERc2+z2S+bFvx1vebZZFB=DOBwy4igY9Ho_-2nXA@HIDDEN>
<835z2dnzba.fsf@HIDDEN>
Date: Sat, 27 Feb 2021 23:14:40 +0100
In-Reply-To: <835z2dnzba.fsf@HIDDEN> (Eli Zaretskii's message of "Sat, 27 Feb
2021 20:24:57 +0200")
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Eli Zaretskii <eliz@HIDDEN> writes:
>> From: "Miguel V. S. Frasson" <mvsfrasson@HIDDEN>
>> Date: Sat, 27 Feb 2021 13:30:23 -0300
>>=20
>> In visual-line-mode, if after leading whitespace it follows very long
>> text without spaces, it occurs a visual line break after the leading
>> whitespace, creating an false blank line, annoying users because extra
>> blank lines may change the meaning of text.
>>=20
>> It would be more sensible in visual-line-mode forbids visual line breaks
>> after leading whitespace, because they always create blank lines.
>
> Patches are welcome to implement this. Word of warning: the current
> implementation of this is in C, as part of the display engine, and
> it's very complex.
Should this be merged with bug#11759 and bug#31666? Skimming [1], I get
the impression that this new report describes a similar problem, i.e.
visual-line-mode refusing to break a word preceded by whitespace.
Quoting Cl=C3=A9ment :
> If breaking before a word doesn't prevent that word
> from being broken, it would seem better to not break before it. In
> other words, assuming 9 columns:
>
> Here breaking at ' ' is useful:
>=20
> Input:
> 123456789
> xxx aaaaaaa
>=20
> Visual-line mode (good)
> 123456789
> xxx
> aaaaaaa
>=20
> But not here:
>=20
> Input
> 123456789
> xxx aaaaaaaaaaaaa
>=20
> Visual-line mode (bad):
> 123456789
> xxx
> aaaaaaaaa
> aaaa
>=20
> What I'd expect:
> 123456789
> xxx aaaaa
> aaaaaaaa
Apologies if I've missed some subtleties.
[1] bug#31666#11
<99baa6b2-584f-789f-ecf8-d845aedd18ef@HIDDEN>
https://lists.gnu.org/archive/html/bug-gnu-emacs/2018-05/msg00894.html
bug-gnu-emacs@HIDDEN:bug#46814; Package emacs.
Full text available.Received: (at 46814) by debbugs.gnu.org; 27 Feb 2021 18:25:14 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Sat Feb 27 13:25:14 2021 Received: from localhost ([127.0.0.1]:45367 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1lG4HC-0003gB-2B for submit <at> debbugs.gnu.org; Sat, 27 Feb 2021 13:25:14 -0500 Received: from eggs.gnu.org ([209.51.188.92]:50342) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1lG4HA-0003fu-MI for 46814 <at> debbugs.gnu.org; Sat, 27 Feb 2021 13:25:12 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]:36858) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1lG4H5-0004cJ-GA; Sat, 27 Feb 2021 13:25:07 -0500 Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:1389 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from <eliz@HIDDEN>) id 1lG4H2-0007oS-9e; Sat, 27 Feb 2021 13:25:06 -0500 Date: Sat, 27 Feb 2021 20:24:57 +0200 Message-Id: <835z2dnzba.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: "Miguel V. S. Frasson" <mvsfrasson@HIDDEN> In-Reply-To: <CAARdmY0066ERc2+z2S+bFvx1vebZZFB=DOBwy4igY9Ho_-2nXA@HIDDEN> (mvsfrasson@HIDDEN) Subject: Re: bug#46814: 26.3; Visual-line-mode produces fake newline if line begins with space References: <CAARdmY0066ERc2+z2S+bFvx1vebZZFB=DOBwy4igY9Ho_-2nXA@HIDDEN> X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 46814 Cc: 46814 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) > From: "Miguel V. S. Frasson" <mvsfrasson@HIDDEN> > Date: Sat, 27 Feb 2021 13:30:23 -0300 > > In visual-line-mode, if after leading whitespace it follows very long > text without spaces, it occurs a visual line break after the leading > whitespace, creating an false blank line, annoying users because extra > blank lines may change the meaning of text. > > It would be more sensible in visual-line-mode forbids visual line breaks > after leading whitespace, because they always create blank lines. Patches are welcome to implement this. Word of warning: the current implementation of this is in C, as part of the display engine, and it's very complex.
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Date: Sat, 27 Feb 2021 13:30:23 -0300
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Subject: 26.3; Visual-line-mode produces fake newline if line begins with space
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Hi.
In visual-line-mode, if after leading whitespace it follows very long
text without spaces, it occurs a visual line break after the leading
whitespace, creating an false blank line, annoying users because extra
blank lines may change the meaning of text.
It would be more sensible in visual-line-mode forbids visual line breaks
after leading whitespace, because they always create blank lines.
How to reproduce:
a) emacs -Q
b) type some text without spaces but *with leading spaces*, like
1-Aaaaaaaaaa
2-Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
c) M-x visual-line-moded.
d) Result: visual linebreak after " " on line 2, creating blank
line. No gain, because one still gets long line displayed.
1-Aaaaaaaaaa
2-Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
e) Proposal: keep leading space together with following long text.
Best regards
Miguel.
In GNU Emacs 26.3 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.13)
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'configure --build=x86_64-linux-gnu --prefix=/usr
'--includedir=${prefix}/include' '--mandir=${prefix}/share/man'
'--infodir=${prefix}/share/info' --sysconfdir=/etc --localstatedir=/var
--disable-silent-rules '--libdir=${prefix}/lib/x86_64-linux-gnu'
'--libexecdir=${prefix}/lib/x86_64-linux-gnu' --disable-maintainer-mode
--disable-dependency-tracking --prefix=/usr --sharedstatedir=/var/lib
--program-suffix=26 --with-modules --with-file-notification=inotify
--with-mailutils --with-x=yes --with-x-toolkit=gtk3 --with-xwidgets
--with-lcms2 'CFLAGS=-g -O2
-fdebug-prefix-map=/build/emacs26-XQGPla/emacs26-26.3~1.git96dd019=.
-fstack-protector-strong
-Wformat -Werror=format-security -no-pie' 'CPPFLAGS=-Wdate-time
-D_FORTIFY_SOURCE=2' 'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro
-no-pie''
Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GSETTINGS GLIB
NOTIFY LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 XDBE XIM MODULES THREADS XWIDGETS
LIBSYSTEMD LCMS2
Important settings:
value of $LANG: pt_BR.UTF-8
locale-coding-system: utf-8-unix
Major mode: LaTeX/MPS
Minor modes in effect:
LaTeX-math-mode: t
TeX-PDF-mode: t
TeX-source-correlate-mode: t
shell-dirtrack-mode: t
reftex-mode: t
show-paren-mode: t
recentf-mode: t
delete-selection-mode: t
tooltip-mode: t
global-eldoc-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
visual-line-mode: t
transient-mark-mode: t
Load-path shadows:
/home/sme/Dropbox/.emacs.d/asy-mode hides /usr/share/emacs/site-lisp/asy-mode
/usr/share/emacs/site-lisp/latex-cjk-thai/thai-word hides
/usr/share/emacs/26.3/lisp/language/thai-word
Features:
(shadow sort mail-extr emacsbug message rmc puny dired dired-loaddefs
format-spec rfc822 mml mml-sec epa derived epg gnus-util rmail
rmail-loaddefs mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums
mm-util mail-prsvr mail-utils url-util reftex-parse misearch
multi-isearch copiar preview prv-emacs reftex-dcr reftex-auc noutline
outline tex-buf font-latex texmathp latex easy-mmode latex-flymake
flymake-proc flymake warnings thingatpt tex-ispell tex-style tex dbus
xml crm advice tex-mode compile shell pcomplete comint ansi-color ring
latexenc elec-pair reftex reftex-loaddefs reftex-vars texify
gregorio-mode server edmacro kmacro paren recentf tree-widget wid-edit
delsel cus-start cus-load finder-inf info tex-site package easymenu
epg-config url-handlers url-parse auth-source cl-seq eieio eieio-core
cl-macs eieio-loaddefs password-cache url-vars seq byte-opt gv bytecomp
byte-compile cconv cl-loaddefs cl-lib time-date mule-util tooltip eldoc
electric uniquify ediff-hook vc-hooks lisp-float-type mwheel term/x-win
x-win term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe
tabulated-list replace newcomment text-mode elisp-mode lisp-mode
prog-mode register page menu-bar rfn-eshadow isearch timer select
scroll-bar mouse jit-lock font-lock syntax facemenu font-core
term/tty-colors frame cl-generic cham georgian utf-8-lang misc-lang
vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932
hebrew greek romanian slovak czech european ethiopic indian cyrillic
chinese composite charscript charprop case-table epa-hook jka-cmpr-hook
help simple abbrev obarray minibuffer cl-preloaded nadvice loaddefs
button faces cus-face macroexp files text-properties overlay sha1 md5
base64 format env code-pages mule custom widget hashtable-print-readable
backquote threads dbusbind inotify lcms2 dynamic-setting
system-font-setting font-render-setting xwidget-internal move-toolbar
gtk x-toolkit x multi-tty make-network-process emacs)
Memory information:
((conses 16 392659 23400)
(symbols 48 34817 2)
(miscs 40 146 888)
(strings 32 106550 3128)
(string-bytes 1 2760077)
(vectors 16 34854)
(vector-slots 8 1477234 189742)
(floats 8 455 1948)
(intervals 56 9132 389)
(buffers 992 17))
--
Miguel Vinicius Santini Frasson
mvsfrasson@HIDDEN
"Miguel V. S. Frasson" <mvsfrasson@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#46814; Package emacs.
Full text available.
GNU bug tracking system
Copyright (C) 1999 Darren O. Benham,
1997 nCipher Corporation Ltd,
1994-97 Ian Jackson.