libxkbcommon is a library by (primarily) Daniel Stone and Ran Benita which processes keyboard events into characters, taking into account the keyboard layout and locale settings.
It is intended to, on the one hand, replace existing such functionality in the X11 project, and on the other, provide a cleaner base for new display protocol projects such as Wayland.
This project provides incomplete haskell bindings to libxkbcommon.
Currently, haskell-xkbcommon is a thin layer on top of libxkbcommon, and this code does not make xkbcommon look much like a Haskell library: the state processor of libxkbcommon is encoded in the IO monad.
See the test suite for example code.