kc3-lang/libxkbcommon

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  • Hash : f468f0b2
    Author : Ran Benita
    Date : 2017-08-13T17:55:45 

    xkbcommon-compose.h: change recommended locale fallback code to treat empty string same as unset

The previous code would cause failures to find the Compose file if one
of the environment variables LC_ALL, LC_CTYPE or LANG are set to the
empty string.

The description of the fallback procedure in loclale(7) talks about
"non-null environment variable"; I interpreted this to mean the
environment variable is unset, but it actually means unset or empty (I
verified this by looking at what glibc and musl do).

A recent bug in systemd https://github.com/systemd/systemd/issues/6407
exposed this issue. It causes these these variables to be set to the
empty string in TTY sessions.

Reported by "doodoo" in https://bbs.archlinux.org/viewtopic.php?id=228658

Signed-off-by: Ran Benita <ran234@gmail.com>

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  • README.md

  • 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.

    Quick Guide

    See Quick Guide.

    Building

    libxkbcommon is built with Meson:

    meson 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 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.

    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:

    http://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 notes.

    Development

    An extremely rudimentary homepage can be found at

    http://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 through github.

    Bug reports are also welcome, and may be filed either at

    Bugzilla https://bugs.freedesktop.org/describecomponents.cgi?product=libxkbcommon

    or

    Github https://github.com/xkbcommon/libxkbcommon/issues

    The maintainers are

    Credits

    Many thanks are due to Dan Nicholson for his heroic work in getting xkbcommon off the ground initially.

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