aosp12/external/libxkbcommon/README.md

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# libxkbcommon
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.
## Quick Guide
See [Quick Guide](doc/quick-guide.md).
## Building
libxkbcommon is built with [Meson](http://mesonbuild.com/):
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
## API
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](https://xkbcommon.org/doc/current/modules.html).
## Dataset
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.
## Relation to X11
See [Compatibility](doc/compat.md) notes.
## Development
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](https://github.com/xkbcommon/libxkbcommon) pull request.
Bug reports (and usage questions) are also welcome, and may be filed at
[GitHub](https://github.com/xkbcommon/libxkbcommon/issues).
The maintainers are
- Daniel Stone <daniel@fooishbar.org>
- Ran Benita <ran@unusedvar.com>
## Credits
Many thanks are due to Dan Nicholson for his heroic work in getting xkbcommon
off the ground initially.