Hash :
afdc9cee
Author :
Date :
2020-10-19T10:49:37
xkbcomp: where a keysym cannot be resolved, set it to NoSymbol
Where resolve_keysym fails we warn but use the otherwise uninitialized variable
as our keysym. That later ends up in the keymap as random garbage hex value.
Simplest test case, set this in the 'us' keymap:
key <TLDE> { [ xyz ] };
And without this patch we get random garbage:
./build/xkbcli-compile-keymap --layout us | grep TLDE:
key <TLDE> { [ 0x018a5cf0 ] };
With this patch, we now get NoSymbol:
./build/xkbcli-compile-keymap --layout us | grep TLDE:
key <TLDE> { [ NoSymbol ] };
libxkbcommon is a keyboard keymap compiler and support library which processes a reduced subset of keymaps as defined by the XKB (X Keyboard Extension) specification. It also contains a module for handling Compose and dead keys and a separate library for listing available keyboard layouts.
See Quick Guide.
libxkbcommon is built with Meson:
meson setup build
ninja -C build
To build for use with Wayland, you can disable X11 support while still using the X11 keyboard configuration resource files thusly:
meson setup build \
-Denable-x11=false \
-Dxkb-config-root=/usr/share/X11/xkb \
-Dx-locale-root=/usr/share/X11/locale
ninja -C build
While libxkbcommon’s API is somewhat derived from the classic XKB API as found in X11/extensions/XKB.h and friends, it has been substantially reworked to expose fewer internal details to clients.
See the API Documentation.
libxkbcommon does not distribute a keymap dataset itself, other than for testing purposes. The most common dataset is xkeyboard-config, which is used by all current distributions for their X11 XKB data. More information on xkeyboard-config is available here:
https://www.freedesktop.org/wiki/Software/XKeyboardConfig
The dataset for Compose is distributed in libX11, as part of the X locale data.
See Compatibility notes.
An extremely rudimentary homepage can be found at
https://xkbcommon.org
xkbcommon is maintained in git at
https://github.com/xkbcommon/libxkbcommon
Patches are always welcome, and may be sent to either
<xorg-devel@lists.x.org> or <wayland-devel@lists.freedesktop.org>
or in a GitHub pull request.
Bug reports (and usage questions) are also welcome, and may be filed at GitHub.
The maintainers are
Many thanks are due to Dan Nicholson for his heroic work in getting xkbcommon off the ground initially.