Expert System Tool
CLIPS is a forward-chaining rule-based programming language written in C that also provides procedural and object-oriented programming facilities.
CLISP is a portable ANSI Common Lisp implementation and development environment by Bruno Haible. Interpreter, compiler, debugger, CLOS, MOP, FFI, Unicode, sockets, CLX. UI in English, German, French, Spanish, Dutch, Russian, and Danish.
This project will allow a group of people to develop the Euphoria programming language: interpreter, translator, binder, documentation etc. For more information visit http://openeuphoria.org
An object-oriented script language to embed in any application
A general purpose, object-oriented script language that compiles into code for a register based virtual machine. The language is quite similar to object-oriented high-level languages like Java and C#. The library is entirely self-sufficient and ANSI C compliant. It's main purpose is to be embedded in any application to allow automation of that application through scripting. An integrated C++ binding code generator allows you to create bindings for your application's classes in seconds. The integrated HTML documentation generator allows you to create documentation for your native bindings in seconds. The project is released under the zlib/libpng license. It has been in development for over 10 years and offers some powerful features. Extensive information, documentation, articles and code examples can be found at the developer blog.
Basic interpreter in ANSI C
MiniBasic is a small but usable Basic interpreter. It is written in pure ANSI C, so it should be easy to get up and running in almost any environment. It has been used for PIC32 electronics projects, as an embedded scripting language, and as a teaching aid. There's an associated book, and full documentation and sample programs online (go to the project's web pages). It's designed to be easy to modify, to use the code as the basis for your own interpreter.
GCI is the Generic Call Interface for REXX interpreters. GCI allows REXX programmers access to all shared libraries (aka DLLs) where there are no REXX-specific wrappers.
SableVM is a clean-room, highly portable and efficient Java virtual machine. Its goals are to be reasonably small, fast, and compliant with the various specifications (JVM specification, JNI, invocation interface, etc.).
The heldbk programming language, an object-oriented scripting language.