RB Terminal Emulation Project is an GPL open-source project written in pure
that has twin aims.
RTES - The RealBasic Terminal Emulation Suite is cross-platform library of classes and class interfaces designed to make implementing a terminal emulator easy. It also includes the library of completed terminals. The design goal of RTES is to emphasize accurate emulation and the flexibility to ignore the need for accurate emulation as your project demands.
RMC - The RealBasic Mu* Client is what it says it is. Leveraging RTES for VT102 emulation, it provides a basic mud client to serve as a template project for specialized mud clients.