From: Robert Pluim <rpluim@gmail.com>
To: Mike FABIAN <mfabian@redhat.com>
Cc: 39799@debbugs.gnu.org
Subject: bug#39799: 28.0.50; Most emoji sequences don’t render correctly
Date: Fri, 28 Feb 2020 19:01:59 +0100 [thread overview]
Message-ID: <m24kva3814.fsf@gmail.com> (raw)
In-Reply-To: <s9dtv3ad3h7.fsf@taka.site> (Mike FABIAN's message of "Fri, 28 Feb 2020 18:30:12 +0100")
>>>>> On Fri, 28 Feb 2020 18:30:12 +0100, Mike FABIAN <mfabian@redhat.com> said:
>> #x24c2 Ⓜ
>>
>> is stubbornly not being displayed using Noto Color Emoji, even though
>> that font has a glyph for it, and Iʼve added:
Mike> U+24C2 is an Emoji which has both a text and an emoji presentation. See:
Mike> http://unicode.org/reports/tr51/#Emoji_Variation_Selector_Notes
Mike> http://unicode.org/reports/tr51/#def_fully_qualified_emoji_zwj_sequence
Mike> http://unicode.org/reports/tr51/#def_non_fully_qualified_emoji_zwj_sequence
Mike> http://www.unicode.org/Public/emoji/12.0/emoji-data.txt
Mike> U+1F600 is an emoji, which has only emoji representation:
Mike> $ grep 1F600 emoji-data.txt
Mike> 1F600 ; Emoji # E1.0 [1] (😀) grinning face
Mike> 1F600 ; Emoji_Presentation # E1.0 [1] (😀) grinning face
Mike> 1F600 ; Extended_Pictographic# E1.0 [1] (😀) grinning face
Mike> It displays without problems in colour in my Emacs.
Mike> Note that U+24C2 does not have the "Emoji_Presentation" tag:
Mike> $ grep 24C2 emoji-data.txt
Mike> 24C2 ; Emoji # E0.6 [1] (Ⓜ️) circled M
Mike> 24C2 ; Extended_Pictographic# E0.6 [1] (Ⓜ️) circled M
Mike> It has to variations, text representation and emoji representation:
Mike> $ grep 24C2 emoji-variation-sequences.txt
Mike> 24C2 FE0E ; text style; # (1.1) CIRCLED LATIN CAPITAL LETTER M
Mike> 24C2 FE0F ; emoji style; # (1.1) CIRCLED LATIN CAPITAL LETTER M
Mike> (U+1F600 is not in emoji-variation-sequences.txt as it has only emoji representation).
Mike> $ grep 1F600 emoji-test.txt
Mike> 1F600 ; fully-qualified # 😀 E1.0 grinning face
Mike> $ grep 24C2 emoji-test.txt
Mike> 24C2 FE0F ; fully-qualified # Ⓜ️ E0.6 circled M
Mike> 24C2 ; unqualified # Ⓜ E0.6 circled M
Mike> $
Mike> As you can see above, U+1F600 is already fully-qualified on its own.
Mike> If I test in gedit, U+24C2 on its own is displayed in black and white
Mike> (happens to use "MS Gothic" font on my system).
Mike> U+24C2 U+FE0E is displayed in black and white in gedit as well.
Mike> U+24C2 U+FE0F is displayed in colour in gedit using the "Noto Color
Mike> Emoji" font.
OK. How do you determine which font is being used in gedit?
Mike> These selectors don’t work in Emacs for me. U+24C2, U+24C2 U+FE0E, and
Mike> U+24C2 U+FE0F *all* display in black and white for me in Emacs.
OK, so itʼs not just me. Iʼll have to do some reading and some
digging.
Mike> The presence of such selectors in a currently visible buffer make my
Mike> Emacs extremely slow and unresponsive, I can hardly finish typing this
Mike> e-mail.
Mike> If I switch to some other buffer so that no such selectors are currently
Mike> visible, my Emacs is responsive.
Mike> Now that I switched back to this buffer to send this e-mail, it is
Mike> terribly slow again.
Mike> Same problem when one of the Unicode emoji data files is displayed which
Mike> contains these selectors. Emacs becomes unusably slow.
Can you try my patch from
<https://debbugs.gnu.org/cgi/bugreport.cgi?bug=39133#41> ? I probably
should have pushed it already...
Robert
next prev parent reply other threads:[~2020-02-28 18:01 UTC|newest]
Thread overview: 104+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-26 14:28 bug#39799: 28.0.50; Most emoji sequences don’t render correctly Mike FABIAN
2020-02-28 7:14 ` Eli Zaretskii
2020-02-28 7:36 ` Mike FABIAN
2020-02-28 8:25 ` Eli Zaretskii
2020-02-28 12:21 ` Robert Pluim
2020-02-28 12:46 ` Mike FABIAN
2020-02-28 13:19 ` Robert Pluim
2020-02-28 13:50 ` Mike FABIAN
2020-02-28 13:56 ` Eli Zaretskii
2020-02-28 14:44 ` Mike FABIAN
2020-02-28 13:08 ` Eli Zaretskii
2020-02-28 13:47 ` Mike FABIAN
2020-02-28 13:54 ` Eli Zaretskii
2020-02-28 14:14 ` Robert Pluim
2020-02-28 14:45 ` Eli Zaretskii
2020-02-28 15:32 ` Mike FABIAN
2020-02-28 15:57 ` Robert Pluim
2020-02-28 15:39 ` Robert Pluim
2020-02-28 16:38 ` Mike FABIAN
2020-02-28 14:46 ` Eli Zaretskii
2020-02-28 15:35 ` Robert Pluim
2020-02-28 15:44 ` Eli Zaretskii
2020-02-28 16:24 ` Robert Pluim
2020-02-28 17:30 ` Mike FABIAN
2020-02-28 17:55 ` Mike FABIAN
2020-02-28 18:01 ` Robert Pluim [this message]
2020-02-28 19:29 ` Mike FABIAN
2020-02-28 19:34 ` Mike FABIAN
2020-02-28 21:32 ` Mike FABIAN
2020-02-28 21:38 ` Robert Pluim
2020-02-28 20:21 ` Eli Zaretskii
2020-02-28 20:25 ` Eli Zaretskii
2020-02-28 21:02 ` Eli Zaretskii
2020-02-28 21:47 ` Robert Pluim
2020-02-28 22:07 ` Eli Zaretskii
2020-02-29 7:50 ` Mike FABIAN
2020-02-29 9:40 ` Eli Zaretskii
2020-02-29 10:45 ` Mike FABIAN
2020-02-28 21:10 ` Mike FABIAN
2020-02-28 21:49 ` Eli Zaretskii
2020-02-29 7:59 ` Mike FABIAN
2020-02-29 10:04 ` Eli Zaretskii
2020-02-29 11:14 ` Mike FABIAN
2020-02-29 11:52 ` Eli Zaretskii
2020-02-29 16:59 ` Mike FABIAN
2020-02-28 20:13 ` Eli Zaretskii
2020-02-28 20:38 ` Robert Pluim
2020-02-28 20:55 ` Eli Zaretskii
2020-02-28 21:22 ` Robert Pluim
2020-02-28 21:27 ` Mike FABIAN
2020-02-28 21:52 ` Eli Zaretskii
2020-02-29 8:01 ` Mike FABIAN
2020-02-29 9:49 ` Eli Zaretskii
2020-02-29 10:26 ` Mike FABIAN
2020-02-29 11:19 ` Eli Zaretskii
2020-02-29 11:36 ` Mike FABIAN
2020-02-29 11:58 ` Eli Zaretskii
2020-02-29 17:03 ` Mike FABIAN
2020-02-29 17:19 ` Eli Zaretskii
2020-02-29 11:41 ` Mike FABIAN
2020-02-29 12:02 ` Eli Zaretskii
2020-02-29 17:14 ` Mike FABIAN
2020-02-29 17:27 ` Eli Zaretskii
2020-03-02 9:10 ` Robert Pluim
2020-03-02 11:02 ` Eli Zaretskii
2020-02-28 21:14 ` Mike FABIAN
2020-02-28 21:50 ` Eli Zaretskii
2020-02-28 16:19 ` Eli Zaretskii
2020-02-28 16:39 ` Robert Pluim
2020-02-28 20:16 ` Eli Zaretskii
2020-02-28 20:56 ` Robert Pluim
2021-09-20 20:38 ` Robert Pluim
2021-09-21 9:16 ` Eli Zaretskii
2021-09-21 10:34 ` Robert Pluim
2021-09-21 10:54 ` Eli Zaretskii
2021-09-21 11:31 ` Eli Zaretskii
2021-09-21 17:43 ` Robert Pluim
2021-09-21 18:28 ` Eli Zaretskii
2021-09-22 9:02 ` Robert Pluim
2021-09-24 19:28 ` Mike FABIAN
2021-09-25 5:55 ` Eli Zaretskii
2021-09-25 7:35 ` Mike FABIAN
2021-09-25 9:19 ` Eli Zaretskii
2021-11-06 18:59 ` Lars Ingebrigtsen
2021-09-21 11:48 ` Mike FABIAN
2021-09-21 11:58 ` Eli Zaretskii
2021-09-21 12:27 ` Mike FABIAN
2021-09-21 12:37 ` Eli Zaretskii
2021-09-21 12:50 ` Robert Pluim
2021-09-21 13:06 ` Eli Zaretskii
2021-09-21 13:25 ` Mike FABIAN
2021-09-21 13:53 ` Robert Pluim
2021-09-21 14:19 ` Eli Zaretskii
2021-09-21 14:43 ` Robert Pluim
2021-09-21 15:58 ` Eli Zaretskii
2021-09-21 16:10 ` Robert Pluim
2021-09-21 16:23 ` Eli Zaretskii
2021-09-21 16:50 ` Eli Zaretskii
2021-09-21 18:20 ` Eli Zaretskii
2021-09-22 8:59 ` Robert Pluim
2021-09-22 13:47 ` Eli Zaretskii
2021-09-24 11:41 ` Robert Pluim
2021-09-24 12:04 ` Eli Zaretskii
2021-09-24 12:10 ` Robert Pluim
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=m24kva3814.fsf@gmail.com \
--to=rpluim@gmail.com \
--cc=39799@debbugs.gnu.org \
--cc=mfabian@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://git.savannah.gnu.org/cgit/emacs.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).