The Tool Command Language implementation
Tool support for the Z formal notation
A powerful macro processor based on python
Interpreter and compiler for the Seed7 programming language.
Scripting engine for Pascal compilers.
Simple ⇒ Object-Oriented ⇒ Functional
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
Advanced TECO dialect and interactive screen editor based on Scintilla
CLIPS compatible application which allows a high performance execution
A tiny Scheme interpreter for embedding in programs.
A free, cross-platform emulator for GW-BASIC, PCjr & Tandy BASIC
IDLE Extensions
Student Programming Language (SPL) a subset of PL/I
Interpreter Code for Book Part 1
BASIC language interpreter (multiplatform)
Dynamic Python binding for Qt Applications
Children's learning programming language Karel the Robot in 3D
A Java VM for ARDUINO and other micros using the leJOS runtime.