The Tool Command Language implementation
REXX interpreter
Expert System Tool
bash debugger
The GNU Prolog native compiler
Agena is an interpreted procedural programming language.
A tiny Scheme interpreter for embedding in programs.
Dynamically loaded extension libraries for GNU AWK
Interpreter and compiler for the Seed7 programming language.
A Script Language for Web, Linux and Windows
Jainja is a JVM (Java Virtual Machine) written in Java
A BASIC interpreter and compiler with graphics.
FTH Forth Scripting
Next Scripting Framework (NSF)
An interpreter for Peter Grogono's Mouse programming language.