Yzis

Yzis a vi-like editor inspired by vim. Yzis aims to be a powerful, fast editor with all of Vim's features and hopefully, at some point, more.
In Yzis, the core editing engine is placed in a library that does not depend on any GUI library. On top of it, GUI frontends are developed. The goal is to make vi-like editing capabilities available to many graphical applications.