This page lists free software projects that use or enhance Guile.

Right now, the list is only semi-maintained and may contain outdated information. We will move this list over to the Free Software Directory soonish.

To contribute, ask for instructions on the guile-user mailing list. NOTE: If you want your project to appear here on the GNU site, then you MUST include licensing information, and the license has to be acceptably free.

Core Projects

These projects modify the innards of Guile.

GOOPS

location	None yet
category	Core
description	A Clos-like object system for Guile.
status	It is up and running now but release won't happen until four things are finished: Modifications in the tiny-clos direction, automatic generation of smob classes, code is merged into guile, and documentation is written.
authors	Mikael Djurfeldt and Christian Lynbech
license	GPL with guile exception (other unrestricted licenses cover the original works from which GOOPS is derived)

guile

location	Guile Homepage
category	Core
description	GNU Ubiquitous Intelligent Language for Extension
status	version 1.5.4 (beta) released 2001-09-28
mailing-list	guile-user, guile-devel, etc.
license	GPL, with an exception to allow non-GPL'd programs to link to the library without becoming derivitive works.
keywords	Extension Language Scheme Interpreter

guile-arith

location	http://www.cl.cam.ac.uk/~ig206/guile-arith/
category	Core
description	An example demonstrating one way to build yacc parsers and lex scanners into Guile modules.
status	The current release of guile-arith is 0.02; It has been built and tested under Linux 2.2 only.
maintainer	Ian Grant
authors	Ian Grant
license	GPL
requires	Guile 1.4
keywords	infix arithmetic bison yacc lex flex scanner parser

Libraries

These projects are libraries of code for Guile: includes interfaces to external libraries and collections of code to do useful things.

guile-dbi

location	http://home.gna.org/guile-dbi
category	Libraries/database
description	guile-dbi is a generic database interface. The main lib provides a way to use dbds (data base drivers) which are linked at run-time (like perl dbi or php or...).
status	version 0.5 released 2005-01-13
maintainer	Maurizio Boriani
authors	Maurizio Boriani
license	GPL
requires	Guile 1.6

(codesystem base64)

location	http://evan.prodromou.san-francisco.ca.us/codesystem-base64-0.1.tar.gz
category	Libraries
description	(codesystem base64) encodes and decodes data in base64 (RFC2045) format.
status	version 0.1 released 2001/04/01
maintainer	Evan Prodromou
authors	Evan Prodromou
license	GPL
requires	Guile 1.4

(net http)

location	(net http)
category	Libraries
description	(net http) is a fairly straightforward HTTP library for Guile 1.4 and GOOPS. It can be used for writing scripts that need to access Web sites, for writing primitive Web servers, or for creating libraries for protocols based on HTTP. It models HTTP messages, clients, and servers.
status	version 0.3 released 2001/06/03
maintainer	Evan Prodromou
authors	Evan Prodromou
license	GPL
requires	Guile 1.4 GOOPS 0.9

avltree

category	Libraries
description	port of emacs lisp avltrees , provided by elib, to guile
status	unstable
maintainer	Klaus Schilling
license	GNU GPL
keywords	data structures

goosh

location	Goosh
category	Libraries
description	Goosh is a small process-control library for Guile. It can be used to start processes and pipelines of connected processes and to communicate with the processes using pipes.
maintainer	Gary Houston
license	GPL

GTrees

location	GTrees Home Page
category	Libraries/Datatypes
description	This is a wish to implement high efficient tree data structures (Red-Black and AVL) using smobs. Both tree implementations will use the same data structure, thereby a subset of common functions (excluding functions balancing the tree) could be used to operate on both types of trees.
status	Version 0.2. Smobs (Red-Black, AVL) and general functions are done.
maintainer	Vilem Vychodil
mailing-list	GTrees mailing list
license	GPL

Guile generic database package

category	Libraries/Database
description	Intended to be something along the lines of Perl's db interface, this has currently only been discussed, and is not yet implemented.
mailing-list	Subscribe requests can be sent here. You then reply to the auto-responding email to be subscribed to the list.

Guile SimpleSQL

location	http://guile-simplesql.sourceforge.net/
category	Libraries/SQL
description	A simple interface to SQL databases, which autoconverts SQL data to Scheme data.
status	Fairly stable. Documentation is a work in progress.
maintainer	Dave Lambert
authors	Hal Roberts, Jorgen Schaefer
license	GPL

guile-audiofile

location	http://www.pbx.org/projects/guile-audiofile/
category	Libraries/Audio
description	Bindings for the SGI audiofile library
status	Initial release supports the most important library features and provides basic documentation.
maintainer	Kyle Cronan
authors	Kyle Cronan
license	GNU GPL

guile-curses

category	Libraries
description	libguile wrapper over the curses library
status	unstable many missing features
maintainer	Klaus Schilling
license	GNU GPL
requires	guile-1.3, ncurses-4.2 or equivalent sysv curses
keywords	cursesguile

guile-gdbm

location	http://www.glug.org/people/ttn/software/guile-gdbm
category	Libraries/Database
description	guile-gdbm provides bindings for the GNU dbm library.
status	version 0.2.6
maintainer	Thien-Thi Nguyen
authors	Martin Grabmueller, Thien-Thi Nguyen
license	GPL v2 or higher
requires	GNU dbm library
keywords	gdbm

guile-gtk

location	guile-gtk
category	Libraries/X11
description	Guile-gtk provides bindings to the gtk+ toolkit from guile.
status	Recently updated to the gtk+ 1.2/1.3 releases
maintainer	Marius Vollmer
license	GPL

guile-ncurses

location	ftp://metalab.unc.edu/pub/Linux/devel/lang/guile-ncurses-0.1.0.tar.gz
category	Libraries
description	This is the ncurses library wrapper for guile scheme.
status	version 0.1.0 released 2001/12/11
maintainer	dmiceman
authors	Dmitry Morozhnikov
license	GPL
requires	ncurses library
keywords	ncurses swig

guile-oracle

category	Libraries/Database
description	an interface to Oracle8 from guile.
status	Very unfinished, available on request.
maintainer	Peter C. Norton

guile-pg

location	http://guile-pg.sourceforge.net
category	Libraries/Database
description	An interface to PostgreSQL from guile.
status	The current release of guile-pg is 0.07; It has been built and tested under Linux 2.2 and Solaris 7 with PostgreSQL version 7.0
maintainer	Ian Grant
authors	Ian Grant
mailing-list	guile-pg-devel@lists.sourceforge.net
license	GPL
requires	Guile 1.3.4 or 1.4 and PostgreSQL Version 7.0 or later
keywords	database postgres

guile-pgsql

location	guile-pgsql
category	Libraries/Database
description	An interface to PostgreSQL from guile
maintainer	Aleksey Demakov

guile-xlib

location	Neil's Guile page
category	Libraries/X11
description	Xlib bindings for Guile
status	Version 0.3: Now a properly packaged loadable Guile module
maintainer	Neil Jerram
authors	Neil Jerram
license	GPL
requires	CVS Guile dated January 2001 or later, Standard X11 libraries
keywords	Xlib

guileGL

location	guileGL
category	Libraries/Graphics
description	OpenGL language bindings for Guile. (OpenGLis standard library for 2D and 3D graphics)
status	The current release of guileGL is 0.1.1 and hasmany bindigs for GL and GLU functions
maintainer	Daniel Skarda
license	GPL
keywords	OpenGLSchemeLanguage Bindings

guilerxspencer

location	guilerxspencer
category	Libraries/Regex
description	A wrapper for Henry Spencer's regular expression library.
maintainer	Gary Houston
license	GPL
requires	Henry Spencer's library, e.g., from http://arglist.com/regex/

HtmlPrag

location	http://www.neilvandyke.org/htmlprag/
category	Libraries
description	A permissive HTML parser that emits SXML format.
authors	Neil W. Van Dyke
license	LGPL

ILU-Guile

location	Inter-Language Unification -- ILU
category	Libraries
description	ILU/CORBA bindings and runtime library for Guile Scheme.
status	Should work with Guile 1.2 and above. Still needs some polising. Could be rewritten to use GOOPS.
maintainer	Bill Janssen
authors	Bill Nell
mailing-list	ILU Mailing List
license	Copyright (c) 1991-1999 Xerox Corporation. All Rights Reserved. Unlimited use, reproduction, modification, and distribution of this software and modified versions thereof is permitted. Permission is granted to make derivative works from this software or a modified version thereof. Any copy of this software, a modified version thereof, or a derivative work must include both the above copyright notice of Xerox Corporation and this paragraph. Any distribution of this software, a modified version thereof, or a derivative work must comply with all applicable United States export control laws. This software is made available AS IS, and XEROX CORPORATION DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND NOTWITHSTANDING ANY OTHER PROVISION CONTAINED HEREIN, ANY LIABILITY FOR DAMAGES RESULTING FROM THE SOFTWARE OR ITS USE IS EXPRESSLY DISCLAIMED, WHETHER ARISING IN CONTRACT, TORT (INCLUDING NEGLIGENCE) OR STRICT LIABILITY, EVEN IF XEROX CORPORATION IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
requires	guile
keywords	CORBA IDL distributed systems OOP

libxm

location	ftp://ccrma-ftp.stanford.edu/pub/Lisp/libxm.tar.gz
category	Libraries/X11
description	Bindings for Xlib/Xt/Xp/Xt/Xm (Motif)
status	version 1.0 released 2001/08/14
maintainer	bil
authors	Bill Schottstaedt
mailing-list	CM mailing list To subscribe to the Common Music list, send mail to cmdist-request with Subject: subscribe your-email-address.
license	GPL
keywords	X11 Motif

Mixp

location	The Mixp home page
category	Libraries
description	Mixp is an XML parser for Guile, built on top of James Clark's expat. It contains a low level, event-based interface which follows the expat API. It also offers more high-level interfaces to represent the contents of an XML file as Scheme lists.
status	The current release of Mixp is 0.20000831. It should be considered as a beta version.
maintainer	Thierry Bézecourt
authors	Thierry Bézecourt
license	Same license as expat, i.e. GPL or MPL, whichever you prefer
keywords	XML expat language bindings

SDOM

location	SDOM home page
category	Libraries
description	SDOM is an implementation in Scheme of the W3C DOM recommendation (level 3), including support for event handling.
status	version 0.1.2 released 2005/03/16
author	Julian Graham
mailing-list	sdom-devel@nongnu.org
license	GPL
requires	SXML
keywords	XML DOM SXML W3C

SART

location	SART
category	Libraries/Graphics
description	a guile library for raytracing and high-complexity 3d modelling
status	Stable and usable for daily rendering, but interface is going through rapid changes.
maintainer	Miroslav Silovic
mailing-list	sart-request@other.debian.org
keywords	graphics 3d rendering raytracing radiosity

simage

category	Libraries/Graphics
description	This is a binding for the simage library, which provides import, export and simple manipulation of image files of various file formats. The binding can currently only be found in the simage CVS repository.
status	experimental
maintainer	larsa
authors	Lars J. Aas and Peder Blekken
license	Public Domain

sndlib

location	ftp://ccrma-ftp.stanford.edu/pub/Lisp/sndlib.tar.gz
category	Libraries/Audio
description	Bindings for sndlib
status	version 13.4
maintainer	bil
authors	Bill Schottstaedt
mailing-list	CM mailing list To subscribe to the Common Music list, send mail to cmdist-request with Subject: subscribe your-email-address.
license	GPL
keywords	audio sound synthesis

Sugar

location	The Sugar Homepage
category	Libraries/Language
description	Sugar adds some syntactic sugar to the LISP reader of scheme, that is, indentation-sensitive syntax, without braces. It is a bit python-like.
status	Fully functional. If there was any new features that could possibly go in here, I would continue developement... Otherwize: This is a ``finished'' product :)
maintainer	Egil Möller
authors	Egil Möller
license	LGPL
keywords	Syntax extension indentation python

sybguile

location	Russ McManus's home page
category	Libraries/Database
description	Bindings for Sysbase's dblib
maintainer	Russ McManus
license	GPL

ttn-pers-scheme

location	distribution directory
category	Libraries/Miscellaneous
description	This directory contains ttn's personal scheme library, a collection of Guile Scheme code, and a methodology for its maintenance.
status	ttn-pers-scheme-0.29 released 2002/01/12
maintainer	Thien-Thi Nguyen
license	GPL
requires	guile-1.5.x
keywords	miscellaneous

xscheme

location	guile contrib
category	Libraries/X11
description	(mo)lesstif and Xaw widget bindings based on xscm. New version is thread friendly (for guile's built in qthreads), and has bindings for some neat widgets like SciPlot and XmHTML.
status	Chris Bitmead offered to take this over, but has since lost interest; I am not sure if he is working on this anymore.
authors	J. Satchell

Exports

These projects allow Guile to be called from other environments.

guile-for-ada

location	The guile-for-ada homepage.
category	Exports/Libguile-High
description	Ada bindings for the GUILE high-level library. The bindings allow GUILE to be invoked from Ada programs.
status	Beta version 0.8.1. It works on my system, but it... (a) hasn't been tested elsewhere, (b) still needs bindings for a few more functions, (c) uses some rank kludges, (d) may get some API tweaks after I have more experience with it, and (e) lacks documentation, other than comments and examples.
maintainer	Bobby D. Bryant
authors	Bobby D. Bryant
license	GPL, with an exception allowing non-GPL'd programs to link to the bindings and/or instantiate generics from them without becoming derivative works.
requires	Currently based on GUILE 1.3. Also (obviously) requires an Ada compiler. (Known to work with GNAT 3.13p.)
keywords	Ada bindings Scheme GUILE extension language scripting language

Applications

These projects are applications using guile: either C programs that allow extension via Scheme, or Scheme programs written for Guile.

BOKIN

location	BOKIN home page
category	Applications/Financial
description	An accounting system based on double-entry bookkeeping. BOKIN is a batch-based system, it doesn't require a GUI.
status	current version 0.1
author	Shigio YAMAGUCHI
license	GPL v2 or higher
requires	Guile 1.6.4 or higher, GNU make, TeX (in the future)

Chart

location	Chart home page
category	Applications/Financial
description	A stock market charting package, with stock and commodity quotes and historical data downloads from various online sources, and with various indicators and display options.
status	Still at "personal project" level but the aims are serious, and it's already useful.
author	Kevin Ryde
license	GPL v2 or higher

Emacs/guile

location	Guile Emacs (Kei's code only)
category	Applications/Editors
description	Modifying GNU Emacs to use Guile.
status	We're working in two areas currently, and should eventually meet somewhere in the middle: <p> Ken is working on changing Emacs (using non-released FSF sources currently, sorry -- this was probably a mistake and should change after Emacs 21 comes out) to make Emacs use Guile objects (but not run Scheme code yet) internally at the lowest levels -- object representation, storage allocation, garbage collection, etc. This will allow most object types to be shared between Scheme and Lisp without having to translate. </p> <p> Kei is working on adding the ability to use Guile to program Emacs and access the Lisp system from the higher level, including a Scheme interaction mode. Version 0.3 was released in March 2000. </p> <p> Items left to investigate in the future: Translation of Emacs Lisp and bytecodes to Scheme. Replace existing Lisp evaluator. Make Emacs objects into a library for use by other projects. Performance work (definitely!). Thread support (fetch mail and news while editing files!). Rewriting the Emacs UI using existing Guile UI code (e.g., GTk). </p>
maintainer	Ken Raeburn
authors	Ken Raeburn Keisuke Nishida
mailing-list	guile-emacs@sourceware.cygnus.com
requires	For testing or helping with some aspects of Ken's work, an account at the FSF is needed. Kei is distributing patches to Emacs 20 and has a public CVS repository.

Feast

location	FEAST web site
category	Applications/Games
description	an extensible toolkit for area-based simulation games, like city-administration simulators or empire-building strategy games, like Lincity or Freeciv
status	In the early stages of development.
maintainer	Lalo Martins
license	GPL

Galway Html Editor

location	Galway homepage
category	Applications/Editors
description	An html editor based on guile-gtk.
status	It handles most normal html entities and javascript, but the cascading style sheets and vrml bits are not currently implemented.
maintainer	Ariel Rios
license	GPL
requires	guile-gtk

GNU Serveez

location	http://www.gnu.org/software/serveez/
category	Applications/Network
description	GNU Serveez is a server framework; it provides routines and help for IP-based servers (TCP, UDP and ICMP) as well as "named pipes". It demonstrates portable network programming optimized for speed and reliability.
status	version 0.1.3 released 2002/02/16
maintainer	Stefan Jahn
authors	Raimund Jacob, Martin Grabmueller and Stefan Jahn
mailing-list	help-serveez
license	GPL
requires	GNU Guile version 1.3 or later

GnuCash

location	GnuCash
category	Applications
description	A personal finance software package. The basic GnuCash engine is written in C, as is the base GTK user interface code. An increasing body of secondary functionality, includingreporting, data interchange, and budgeting is supportedvia the Guile scripting engine.
status	The current release of GnuCash is 1.3.x; it is still undergoing many changes, but is beginning to be stable enough for everyday use.
maintainer	Linas Vepstas
authors	Linas Vepstas, Rob Browning, Jeremy Collins, Dave Peticola, Rob Clark, and a cast of thousands
mailing-list	GnuCash Developers mailing list is the main list for GnuCash. To subscribe to the GnuCash list, send mail to gnucash-devel-subscribe@gnucash.org . The message does not need to contain any commands.
license	GPL
keywords	Extension Language Scheme Interpreter

Goose

location	Goose Home Page
category	Applications/Math
description	C++ statistical library with Guile bindings, will build on GSL
maintainer	Jon Trowbridge
mailing-list	Goose is discussed on theGuppi mailing list
license	LGPL

GOSSIP

location	http://gossip.sourceforge.net
category	Applications/Simulation
description	The GOSSIP project develops and maintains a simulation environment for use primarily in communications engineering and digital signal processing.
maintainer	Marius Vollmer
authors	Marius Vollmer
license	GPL

guile projects list management code

location	home page
category	Applications/Publishing
description	This is the guile scheme code that maintains the guile projects list. There are configurations for glug.org as well for the gnu.org subset of the list.
status	version 1.12 released 2001/12/12
maintainer	ttn
authors	Greg Harvey and Thien-Thi Nguyen
license	GPL

guile-gui

location	Neil's Guile page
category	Applications/Shell
description	A collection of Guile Scheme code that aims to implement a graphical user interface for Guile
status	Version 0.2: Currently just a Gtk widget-based equivalent of the command line Guile REPL
maintainer	Neil Jerram
authors	Neil Jerram
license	GPL
requires	CVS Guile dated March 7th 2001 or later, Standard Gtk libraries, guile-gtk

Guppi

location	Guppi
category	Applications/Math
description	Interactive/user-friendly plot/chart program with Guile scripting. Will probably have a command line version, possibly written in Guile. Builds on Goose and Goose bindings are available within the app.
maintainer	Havoc Pennington
license	GPL

Hobbit

location	http://kvast.blakulla.net/software/guile
category	Applications/Devel
description	A scheme->c compiler for guile.
maintainer	Bernard Urban
authors	Tanel Tammet Bernard Urban
license	GPL

LilyPond

location	LilyPond Homepage
category	Applications/Publishing
description	LilyPond generates beautiful music notation from an input file.
status	1.4 was released may '01. It produces excellent output and has good GUILE extensibility. LilyPond is actively developed in the 1.5.x development series.
maintainer	Han-Wen Nienhuys Jan Nieuwenhuizen
license	GPL
requires	guile 1.3.4, python, TeX
keywords	music notation engraving MIDI

Logo->Scheme

location	Logo->scheme
category	Applications/Translators
description	A translator from Logo to Guile/Scheme
status	Set aside while I work on Tcl->Scheme. It is in the middle of a rewrite as I try to save some of the Logo-ness of the resulting language and make it self-hosting (i.e., a Logo translator written in Logo).
maintainer	Ian Bicking
license	GPL

mmci

location	distribution directory
category	Applications/Development
description	This directory contains mmci (multi-method check-in), a program that abstracts the "cvs add" procedure to also handle RCS files and Emacs-style backup files. Specifically, files already in CVS (as evidenced by their name appearing in CVS/Entries) are ignored, as are most files cvs normally ignores. The exception is Emacs-style backup files (foo, foo~, and foo.~N~), which are checked in with successive revisions based on the files' mtime. Files under RCS control (RCS/*,v) are copied directly. New files are checked into RCS temporarily and processed as such.
status	mmci-0.9.3 released 2000/12/21
maintainer	Thien-Thi Nguyen
license	GPL
requires	guile-1.4, ttn-pers-scheme-0.04
keywords	cvs version-control emacs rcs

naos

category	Applications
description	extensible textual turnbased fantasy role-playing game
status	base engine and user frontend complete, many data files missing
maintainer	Klaus Schilling
license	GNU GPL
requires	guile-1.3 GNU Emacs 20.* elib GNU Scientific Library 0.4
keywords	game roleplay

Recluse

location	http://www.pyro.net/~crayc/code/recluse/
category	Applications/Network
description	a single-process HTTP server with Guile support
status	alpha version 0.9 released
maintainer	Christopher Cramer
authors	Jef Poskanzer and Christopher Cramer
license	GPL
requires	Guile 1.5.1 or later

robots

location	GNU Robots homepage
category	Applications/Games
description	A game/diversion where you construct a robot (using scheme) then set him loose and watch him explore a world.
status	The current release of guile is 0.95; it is still undergoing many changes, but is stable enough for everyday use.
maintainer	Jim Hall
authors	Jim Hall
license	GPL
keywords	Game robots diversion

screen2jsim

location	None yet
category	Applications/Simulation
description	simulation/ development environment for single flux quantum circuits. Implemented in xguile, with many features written entirely in scheme.
status	This is (at present anyway) a purely in house project.
maintainer	J. Satchell

Scwm

location	Scwm home page
category	Applications/X11
description	An X11 window manager, configurable and extensible via guile.
authors	Maciej Stachowiak Greg Badros
license	fvwm2 and GPL mix

Siag Office

location	Siag office
category	Applications/Office
description	a collection of ``office utilities'', including Siag (Scheme in a Grid), a spreadsheet; PW (Pathetic Writer), a word processor; and Egon Animator, an animation development tool.
maintainer	Ulric Eriksson

Snd

location	http://www-ccrma.stanford.edu/software/snd/
category	Applications/Sound
description	Snd is a sound editor. It can be found at http://www-ccrma.stanford.edu/software/snd/, http://snd.sourceforge.net, or ftp://ccrma-ftp.stanford.edu/pub/Lisp/snd-5.tar.gz.
status	Snd 5.0
maintainer	Bill Schottstaedt
authors	Bill Schottstaedt
mailing-list	CM mailing list To subscribe to the Common Music list, send mail to cmdist-request with Subject: subscribe your-email-address.
license	LGPL
keywords	Sound Editor

sonya

location	FEAST web site
category	Applications/Translators
description	A translator for stack-based syntaxes like PostScript (sonya) plus a module with some PostScript operators (which I named jax).
status	Very alphaish, but already useful (IMHO)
maintainer	Lalo Martins
authors	Lalo Martins
license	GPL
keywords	postscript

Sula PrimeriX II

location	Sula Primerix homepage
category	Applications/Network
description	An extensible IRC client for X
status	As of release 0.09.2: The Guile/X11/IRC core is stable;the graphical scripting interface -SkriptX -is not yet completed
maintainer	Tano Fotang
authors	Tano Fotang
license	GPL
keywords	IRCX

SWIG

location	SWIG
category	Applications/Development
description	SWIG is the Simplified Wrapper and Interface Generator, which makes it fairly easy and painless to generate a scripting language interface or wrapper to a program written in C, C++, or Objective C. Guile is among the scripting languages supported.
status	Guile support has improved a lot in the development series 1.3. Pointers are represented as smobs. (They used to be mangled into strings.) Memory leaks and type conversion bugs have been fixed. The Guile module system, including dynamic loading, and exceptions are supported. A typemap-driven procedure-documentation system has been added (requires Guile 1.4). Procedures-with-setters can be generated.
maintainer	Dave Beazley
license	BSD-style

Tcl->Scheme

location	Tcl->scheme
category	Applications/Translators
description	A translator from Tcl to Guile/Scheme.
status	Development in progress, but capable of doing quite a bit already (not quite sure of where to go with it next).
maintainer	Ian Bicking
license	GPL

TeXmacs

location	The TeXmacs homepage
category	Applications/Editors
description	TeXmacs is a free what-you-see-is-what-you-get scientific text editor, which was both inspired by TeX and Emacs. It is also possible to use TeXmacs as an interface to computer algebra systems. TeXmacs actually runs on PC's under Linux (a >200MHz processor and >32Mb of memory are recommended) and on sun computers. The program implements high quality typesetting using TeX fonts, but it is also provides a user friendly interface. The high typesetting quality also goes through for automatically generated formulas; this makes TeXmacs suitable as an interface for computer algebra systems. Finally, TeXmacs support Guile/Scheme as an extension language, which makes it possible to adapt the user interface to specific needs and even to extend the editor. Currently, the editor is more or less compatible with the TeX system and we are working on the interface with computer algebra systems. Subsequently, TeXmacs should also support graphics and some hypertext features.
status	The current release of TeXmacs is 0.2.4f (beta)
maintainer	Joris van der Hoeven
authors	Joris van der Hoeven
license	GPL
keywords	Editor Guile Mathematics WYSIWYG

THUD

location	THUD homepage
category	Applications/Simulation
description	THUD is a register transfer level (RTL) simulation environment optimized for cycle-based designs. The design is expressed in TH, a Scheme-based hardware description language (HDL).
maintainer	Thien-Thi Nguyen
license	GPL

Tools

These projects are tools for or implemented with Guile. Mostly, these are the types of things that automate documentation or code generation.

AutoGen

location	AutoGen Home Page
category	Tools/Text
description	AutoGen is a tool designed for generating program files that contain repetitive text with varied substitutions. Its goal is to simplify the maintenance of programs that contain large amounts of repetitious text. This is especially valuable if there are several blocks of such text that must be kept synchronized.
status	AutoGen has just been made publicly available March 1, 1999. However, it has been under gradual development for several years, so it is quite solid. It is currently being beguiled, so a portion of the command syntax is subject to changing a few months down the road.
maintainer	Bruce Korb
authors	Bruce Korb and Gary V. Vaughan
license	GPL for the AutoGen engine, LGPL for the POSIX and GNU compliant option processing
requires	guile-1.4, ANSI-C
keywords	Automated option processing documentation extraction code generation fixincludes fix include

Greg

location	Greg
category	Tools/Test-Suites
description	A testing framework built around guile.
maintainer	Richard Frith-Macdonald
license	LGPL

Guile-Lint

location	Guile-Lint home page
category	Tools/Lint
description	Syntactic and semantic checks on Guile programs and modules. Picks up things like unbound variables in hard-to-reach places.
author	Kevin Ryde
license	GPL v2 or higher