Open Source BeOS Interpreters

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.

ScummVM is a cross-platform interpreter for many point-and-click adventure games. This includes LucasArts SCUMM games (such as Monkey Island 1-3, Day of the Tentacle, Sam & Max, ...), many of Sierra's AGI and SCI games (such as King's Quest 1-6, Space Quest 1-5, ...), Discworld 1 and 2, Simon the Sorcerer 1 and 2, Beneath A Steel Sky, Lure of the Temptress, Broken Sword 1 and 2, Flight of the Amazon Queen, Gobliiins 1-3, The Legend of Kyrandia 1-3, many of Humongous Entertainment's children's SCUMM games (including Freddi Fish and Putt Putt games) and many more. The project mailing lists have been moved to http://lists.scummvm.org The project tracker has been moved to https://bugs.scummvm.org

The Q programming language, a modern functional programming and scripting language based on term rewriting.

Sarien is a portable implementation of the Sierra On-Line Adventure Game Interpreter (AGI), and is able to run games such as Leisure Suit Larry in the Land of the Lounge Lizards and Space Quest I and II.

This tutorial demonstrates how easy it is to accomplish real world programming goals with Rebol. The text aims to teach average users to program computers to do useful things, without the long and difficult learning curve imposed by other languages.

A system for developing custom XML editors with ease. XML editors are built from Java editing components.

An IRC client that uses Tcl for not only the scripting, but also the "glue" at the C level for how all the parts of the application fit together.

wspacegen is an interactive IDE for programing with whitespace (http://compsoc.dur.ac.uk/whitespace/). So it's possible to create .ws code relative easily and debug it as well. But attention, you'll addicted to it (-:

antlraux is a java package thought to be used in combination with antlr(http://www.antlr.org). Features contextual information management, command line parsing and lexical information treatment.

ICI is a general purpose interpretive programming language that has dynamic typing and flexible data types with the flow control constructs and operators of C.

yab is an extended version of yabasic, a BASIC programming language, with special commands designed for Haiku.