The xmodmap program is used to edit and display the keyboard modifier
map and keymap table that are used by client applications to convert
event keycodes into keysyms.  It is usually run from the user's
session startup script to configure the keyboard according to personal
tastes.

All questions regarding this software should be directed at the
Xorg mailing list:

  https://lists.x.org/mailman/listinfo/xorg

The master development code repository can be found at:

  https://gitlab.freedesktop.org/xorg/app/xmodmap

Please submit bug reports and requests to merge patches there.

For patch submission instructions, see:

  https://www.x.org/wiki/Development/Documentation/SubmittingPatches