--- Begin Message ---
Subject: |
29.0.50; Incorrect rendering of Emoji (grapheme cluster) in Org heading |
Date: |
Sun, 14 Aug 2022 21:47:21 +0300 |
Dear maintainers,
I have encountered a bug where grapheme clusters are not rendered
properly when used inside of a folded heading in Org.
Steps to reproduce with 'emacs -Q':
1. Evaluate:
(setq org-pretty-entties t
org-ellipsis " ☀️")
2. Either visit an existing Org file or use the attached sample.
3. Fold a heading in Org by pressing TAB with point somewhere on the
heading.
4. Notice the incorrectly rendered sun emoji at the end of the folded
heading.
If I change 'org-ellipsis' to a single character emoji, such as the
generic smile, the problem no longer occurs:
* Evaluate:
(setq org-ellipsis " 😀")
* Then in the Org file do 'M-x org-mode-restart'.
The smile emoji renders properly at the end of the folded heading's
line.
The attached screenshots show the different results.
All the best,
Protesilaos (or simply "Prot")
* * *
In GNU Emacs 29.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.34, cairo
version 1.17.6)
of 2022-08-14 built on kronos
Repository revision: b93e14fa0fd5833adbdd88ec86fccc4b59172302
Repository branch: master
System Description: Arch Linux
Configured using:
'configure --prefix=/usr --sysconfdir=/etc --libexecdir=/usr/lib
--localstatedir=/var --mandir=/usr/share/man --with-gameuser=:games
--without-libotf --without-m17n-flt --without-gconf
--with-native-compilation --with-pgtk --with-sound=no --without-gpm
--without-compress-install
'--program-transform-name=s/\([ec]tags\)/\1.emacs/'
'CFLAGS=-march=x86-64 -mtune=generic -O2 -pipe -fno-plt -fexceptions
-Wp,-D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security
-fstack-clash-protection -fcf-protection'
LDFLAGS=-Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now'
Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON
LCMS2 LIBSYSTEMD LIBXML2 MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PGTK
PNG RSVG SECCOMP SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS WEBP XIM GTK3
ZLIB
--
Protesilaos Stavrou
https://protesilaos.com
sample.org
Description: Lotus Organizer
Screenshot from 2022-08-14 21-39-19.png
Description: PNG image
Screenshot from 2022-08-14 21-39-44.png
Description: PNG image
--- End Message ---
--- Begin Message ---
Subject: |
Re: bug#57214: 29.0.50; Incorrect rendering of Emoji (grapheme cluster) in Org heading |
Date: |
Mon, 15 Aug 2022 17:12:20 +0300 |
User-agent: |
Notmuch/0.36 (https://notmuchmail.org) Emacs/29.0.50 (x86_64-pc-linux-gnu) |
> From: Eli Zaretskii <eliz@gnu.org>
> Date: Mon, 15 Aug 2022 14:43:25 +0300
>
> [... 17 lines elided]
>
>> Should we close this or there is potential to change things?
>
> The potential always exists, although the implementation will not be
> trivial, because we'll need to invent a new kind of "display vector"
> to hold the font glyph codes (or maybe just the composition ID?), and
> implement the code to support its display.
Understood.
> Is this an important feature to have?
No. I just wanted to be sure that it is not trivial to change.
Closing the issue now. Thank you for your time!
--
Protesilaos Stavrou
https://protesilaos.com
--- End Message ---