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The Gambit programming system is a full implementation of the Scheme language which conforms to the R4RS and IEEE Scheme standards. It consists of two main programs: gsi-gambit, the Gambit Scheme interpreter, and gsc-gambit, the Gambit Scheme compiler. Gambit-C is a version of the Gambit programming system in which the compiler generates portable C code, making the whole Gambit-C system and the programs compiled with it easily portable to many computer architectures for which a C compiler is available. With appropriate declarations in the source code the executable programs generated by the compiler run roughly as fast as equivalent C programs.

The GCL system contains C and Lisp source files to build a Common Lisp sytem. The original KCL system was written by Taiichi Yuasa and Masami Hagiya in 1984. The AKCL system work was begun in 1987 by William Schelter and continued through 1994. In 1994 AKCL was released as GCL (GNU Common Lisp) under the GNU public library license. NOTE: GCL supports Tk bindings with Tcl 8 and Tk 8.

Ruby is the interpreted scripting language for quick and easy object-oriented programming. It has many features to process text files and to do system management tasks (as in Perl). It is simple, straight-forward, and extensible. Features of Ruby are shown below. + Simple Syntax + *Normal* Object-Oriented features(ex. class, method calls) + *Advanced* Object-Oriented features(ex. Mix-in, Singleton-method) + Operator Overloading + Exception Handling + Iterators and Closures + Garbage Collection + Dynamic Loading of Object files(on some architecture) + Highly Portable(works on many UNIX machines, and on DOS, Windows, Mac, BeOS etc.)

Ruby is the interpreted scripting language for quick and easy object-oriented programming. It has many features to process text files and to do system management tasks (as in Perl). It is simple, straight-forward, and extensible. Features of Ruby are shown below. + Simple Syntax + *Normal* Object-Oriented features(ex. class, method calls) + *Advanced* Object-Oriented features(ex. Mix-in, Singleton-method) + Operator Overloading + Exception Handling + Iterators and Closures + Garbage Collection + Dynamic Loading of Object files(on some architecture) + Highly Portable(works on many UNIX machines, and on DOS, Windows, Mac, BeOS etc.)

GUILE, GNU's Ubiquitous Intelligent Language for Extension, is a library that implements the Scheme language plus various convenient facilities. It's designed so that you can link it into an application or utility to make it extensible. Our plan is to link this library into all GNU programs that call for extensibility.

GUILE, GNU's Ubiquitous Intelligent Language for Extension, is a library that implements the Scheme language plus various convenient facilities. It's designed so that you can link it into an application or utility to make it extensible. Our plan is to link this library into all GNU programs that call for extensibility.

ICI is a C-like, high level language originally developed by Tim Long and placed into the public domain. ICI marries C's expression syntax, control structures and overall feel, with a dynamic, garbage collected, object-based, data model. Version 4 incorporates numerous performance enhancements, refinements to existing features and new features including native support for threads, a cleaner, more well defined API for extension module authors and those embedding ICI within other programs, and new documentation that is superior to that provided in previous releases. ICI is typically used as a scripting-like language in the fashion of Perl, Python, Ruby, Lua, TCL and other such languages. ICI can be called from C and the language itself can be extended allowing applications to provide domain specific functions, types and operators for use in their ICI programs. Embedding within applications allows application authors to make use of ICI's efficient object system which provides many useful facilities. ICI is in the public domain, there is no copyright on it.

Icon is a high-level programming language with extensive facilities for processing strings and structures. Icon has several novel features, including expressions that may produce sequences of results, goal-directed evaluation that automatically searches for a successful result, and string scanning that allows operations on strings to be formulated at a high conceptual level. The language is described in R. E. Griswold and M. T. Griswold, The Icon Programming Language, Prentice-Hall, Inc., Englewood Cliffs, NJ, second edition, 1990. For more information or assistance, contact: Icon Project voice: (520) 621-6613 Department of Computer Science fax: (520) 621-4246 The University of Arizona P.O. Box 210077 icon-project@cs.arizona.edu Tucson, AZ 85721-0077 U.S.A.

A compiler for the INTERCAL language, which has a syntax and feature set differing considerably from all other programming languages. This is the C-INTERCAL compiler, which compiles INTERCAL to C, and then invokes cc as a backend, much like the "f2c" Fortran compiler.

Malbolge is an esoteric language, named after the eighth circle of hell in the Divina Commedia by Dante. Two years were necessary to see the first software produced in this language.