bug#21177: 25.0.50; full width glyph breaks display in terminal

bug#21177: 25.0.50; full width glyph breaks display in terminal

[Mark Oteiza]

Hello,

I have found a couple recipes that put display out of whack in
terminals. So far I have tried xterm, gnome-terminal, as well as screen
and tmux in each. From emacs -nw -Q:

1. M-x load-theme RET somebuiltintheme RET
2. Paste some full width glyph, e.g. 数 ツ
3. Put point on the glyph
4. C-u C-x =

Point moves after the glyph, the buffer seems to narrow, sometimes the
modeline gets doubled.

Another similar thing seems to be:

1. M-x load-theme RET somebuiltintheme RET
2. C-x 8 RET HIRAGANA TAB … (complete to something) RET

Here's the result after this second recipe https://i.imgur.com/HXyfX5l.png

In GNU Emacs 25.0.50.1 (x86_64-unknown-linux-gnu, X toolkit, Xaw scroll bars)
 of 2015-08-01 on logos
Repository revision: eb0f65b4fbbea60100b53cb40a1d7138d47ad0d2
Configured using:
 `configure --prefix=/usr --sysconfdir=/etc --libexecdir=/usr/lib
 --localstatedir=/var --without-gconf --with-x-toolkit=lucid
 'CFLAGS=-march=x86-64 -mtune=generic -O2 -pipe -fstack-protector-strong
 --param=ssp-buffer-size=4' CPPFLAGS=-D_FORTIFY_SOURCE=2
 LDFLAGS=-Wl,-O1,--sort-common,--as-needed,-z,relro'

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GSETTINGS NOTIFY
ACL GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS
LUCID X11

Important settings:
  value of $LC_COLLATE: C
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

bug#21177: 25.0.50; full width glyph breaks display in terminal

[Eli Zaretskii]

> From: Mark Oteiza <mvoteiza@udel.edu>
> Date: Sat, 01 Aug 2015 15:16:47 -0400
> 
> I have found a couple recipes that put display out of whack in
> terminals. So far I have tried xterm, gnome-terminal, as well as screen
> and tmux in each. From emacs -nw -Q:
> 
> 1. M-x load-theme RET somebuiltintheme RET
> 2. Paste some full width glyph, e.g. 数 ツ
> 3. Put point on the glyph
> 4. C-u C-x =
> 
> Point moves after the glyph, the buffer seems to narrow, sometimes the
> modeline gets doubled.
> 
> Another similar thing seems to be:
> 
> 1. M-x load-theme RET somebuiltintheme RET
> 2. C-x 8 RET HIRAGANA TAB … (complete to something) RET
> 
> Here's the result after this second recipe https://i.imgur.com/HXyfX5l.png

Do the problems go away if you turn off auto-composition-mode?

bug#21177: 25.0.50; full width glyph breaks display in terminal

[Mark Oteiza]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Mark Oteiza <mvoteiza@udel.edu>
>> Date: Sat, 01 Aug 2015 15:16:47 -0400
>> 
>> I have found a couple recipes that put display out of whack in
>> terminals. So far I have tried xterm, gnome-terminal, as well as screen
>> and tmux in each. From emacs -nw -Q:
>> 
>> 1. M-x load-theme RET somebuiltintheme RET
>> 2. Paste some full width glyph, e.g. 数 ツ
>> 3. Put point on the glyph
>> 4. C-u C-x =
>> 
>> Point moves after the glyph, the buffer seems to narrow, sometimes the
>> modeline gets doubled.
>> 
>> Another similar thing seems to be:
>> 
>> 1. M-x load-theme RET somebuiltintheme RET
>> 2. C-x 8 RET HIRAGANA TAB … (complete to something) RET
>> 
>> Here's the result after this second recipe https://i.imgur.com/HXyfX5l.png
>
> Do the problems go away if you turn off auto-composition-mode?

Nope

bug#21177: 25.0.50; full width glyph breaks display in terminal

[Lars Ingebrigtsen]

Mark Oteiza <mvoteiza@udel.edu> writes:

> I have found a couple recipes that put display out of whack in
> terminals. So far I have tried xterm, gnome-terminal, as well as screen
> and tmux in each. From emacs -nw -Q:
>
> 1. M-x load-theme RET somebuiltintheme RET
> 2. Paste some full width glyph, e.g. 数 ツ
> 3. Put point on the glyph
> 4. C-u C-x =
>
> Point moves after the glyph, the buffer seems to narrow, sometimes the
> modeline gets doubled.

I tried reproducing this in Emacs 25.1 and Emacs 28, and I can't see
any oddities (on Debian/bullseye) when following this recipe.

Do you still see this problem?  If so, what theme are you loading?

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

bug#21177: 25.0.50; full width glyph breaks display in terminal

[Mark Oteiza]

On 08/07/21 at 04:18pm, Lars Ingebrigtsen wrote:
> Mark Oteiza <mvoteiza@udel.edu> writes:
> 
> > I have found a couple recipes that put display out of whack in
> > terminals. So far I have tried xterm, gnome-terminal, as well as screen
> > and tmux in each. From emacs -nw -Q:
> >
> > 1. M-x load-theme RET somebuiltintheme RET
> > 2. Paste some full width glyph, e.g. 数 ツ
> > 3. Put point on the glyph
> > 4. C-u C-x =
> >
> > Point moves after the glyph, the buffer seems to narrow, sometimes the
> > modeline gets doubled.
> 
> I tried reproducing this in Emacs 25.1 and Emacs 28, and I can't see
> any oddities (on Debian/bullseye) when following this recipe.
> 
> Do you still see this problem?  If so, what theme are you loading?
> 

No, I think this has been fixed.  Thanks!