bug#74134: 29.4; emacs-pgtk and emacs-gtk-x11 does not react the same way to c-s-u

bug#74134: 29.4; emacs-pgtk and emacs-gtk-x11 does not react the same way to c-s-u

[joakim]

I would like to be able to enter unicode chars the same way you do in
other applications under wayland or x11, using control shift u + 4 hex
chars ret.

In emacs-pgtk it seems like c-s-u tries to do this, because a little U
with underscore appears, same as in firefox, but then you cant type the
hex code.

In emacs-gtk-x11, c-s-u works as advertized in the emacs manual at
least, it runs universal-argument.

I would prefer it if c-s-u could be configuered to enter unicode same as
in other applications, if possible.

Regards
/Joakim


In GNU Emacs 29.4 (build 1, x86_64-redhat-linux-gnu, GTK+ Version
 3.24.43, cairo version 1.18.0) of 2024-10-10 built on
 4825182c94fc4195b65c80c30f523a16
System Description: Fedora Linux 41 (Workstation Edition)

Configured using:
 'configure --build=x86_64-redhat-linux-gnu
 --host=x86_64-redhat-linux-gnu --program-prefix=
 --disable-dependency-tracking --prefix=/usr --exec-prefix=/usr
 --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc
 --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64
 --libexecdir=/usr/libexec --localstatedir=/var --runstatedir=/run
 --sharedstatedir=/var/lib --mandir=/usr/share/man
 --infodir=/usr/share/info --with-cairo --with-dbus --with-gif
 --with-gpm=no --with-harfbuzz --with-jpeg --with-json --with-modules
 --with-native-compilation=aot --with-pgtk --with-png --with-rsvg
 --with-sqlite3 --with-tiff --with-tree-sitter --with-webp --with-xpm
 build_alias=x86_64-redhat-linux-gnu host_alias=x86_64-redhat-linux-gnu
 CC=gcc 'CFLAGS=-DMAIL_USE_LOCKF -O2 -flto=auto -ffat-lto-objects
 -fexceptions -g -grecord-gcc-switches -pipe -Wall
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 -specs=/usr/lib/rpm/redhat/redhat-package-notes '
 PKG_CONFIG_PATH=:/usr/lib64/pkgconfig:/usr/share/pkgconfig CXX=g++
 'CXXFLAGS=-O2 -flto=auto -ffat-lto-objects -fexceptions -g
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 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection
 -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer
 -mno-omit-leaf-frame-pointer ''

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GSETTINGS HARFBUZZ JPEG JSON
LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 MODULES NATIVE_COMP NOTIFY INOTIFY
PDUMPER PGTK PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF
TOOLKIT_SCROLL_BARS TREE_SITTER WEBP XIM GTK3 ZLIB

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

Major mode: Messages

Minor modes in effect:
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  recentf-mode: t
  desktop-save-mode: t
  keyfreq-autosave-mode: t
  keyfreq-mode: t
  winner-mode: t
  projectile-mode: t
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  company-quickhelp-local-mode: t
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  company-mode: t
  shx-global-mode: t
  erc-stamp-mode: t
  diredfl-global-mode: t
  zen-reward-mode: t
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  global-git-commit-mode: t
  server-mode: t
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  savehist-mode: t
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  global-font-lock-mode: t
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  buffer-read-only: t
  line-number-mode: t
  transient-mark-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  abbrev-mode: t

Load-path shadows:
/home/joakim/.emacs.d/elpa/transient-20241008.1824/transient hides /usr/share/emacs/29.4/lisp/transient
/home/joakim/.emacs.d/elpa/use-package-ensure-system-package-20221209.2013/use-package-ensure-system-package hides /usr/share/emacs/29.4/lisp/use-package/use-package-ensure-system-package

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smime gnutls dig emacsbug mule-util company-oddmuse company-keywords
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Memory information:
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 (symbols 48 66097 1396)
 (strings 32 298878 95845)
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-- 
Joakim Verona
joakim@verona.se

bug#74134: 29.4; emacs-pgtk and emacs-gtk-x11 does not react the same way to c-s-u

[Eli Zaretskii]

> From: joakim@verona.se
> Date: Thu, 31 Oct 2024 13:19:40 +0100
> 
> 
> I would like to be able to enter unicode chars the same way you do in
> other applications under wayland or x11, using control shift u + 4 hex
> chars ret.
> 
> In emacs-pgtk it seems like c-s-u tries to do this, because a little U
> with underscore appears, same as in firefox, but then you cant type the
> hex code.
> 
> In emacs-gtk-x11, c-s-u works as advertized in the emacs manual at
> least, it runs universal-argument.
> 
> I would prefer it if c-s-u could be configuered to enter unicode same as
> in other applications, if possible.

Isn't this the following known issue from PROBLEMS?

  ** Certain keys such as 'C-S-u' are not reported correctly.

  Some keys with modifiers such as Shift and Control might not be
  reported correctly due to incorrectly written GTK input method
  modules.  This is known to happen to 'C-S-u' and 'C->', which are
  misreported as 'C-u' and '>'.

  To disable the use of GTK input methods, evaluate:

    (pgtk-use-im-context nil)

  This will also cause system input methods and features such as the
  Compose key to stop working.

  On X Windows, users should not use Emacs configured with PGTK, since
  this and many other problems do not exist on the regular X builds.