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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
<html><head><title>GF Version 2.0</title></head>
<body bgcolor="#ffffff" text="#000000">
<center>
<img src="gf-logo.gif">
<h1>Grammatical Framework</h1>
<h2>Version 2.0</h2>
August 10, 2004.
</center>
<p>
</p><h2>News</h2>
<b>August 10, 2004. GF 2.0 now released</b>.
Here are the <a
href="doc/gf2-highlights.html">highlights</a>.
Software available on the <a href="download/gf-download.html">Download Page</a>.
</p><h2>What is GF?</h2>
The Grammatical Framework (=GF) is a grammar formalism based on type
theory. It consists of
<ul>
<li> a special-purpose programming language
</li><li> a compiler of the language
</li><li> a generic grammar processor
</li></ul>
The compiler reads
GF grammars from user-provided files,
and the generic grammar processor performs
various tasks with the grammars:
<ul>
<li> generation
</li><li> parsing
</li><li> translation
</li><li> type checking
</li><li> computation
</li><li> paraphrasing
</li><li> random and exhaustive generation
</li><li> syntax editing
</li></ul>
GF particularly addresses two aspects of grammars:
<ul>
<li> multilinguality (parallel grammars for different languages)
</li><li> semantics (semantic conditions of well-formedness, semantic
properties of expressions)
</li></ul>
GF Version 2.0 adds the aspect of
<ul>
<li> modularity and grammar engineering.
</ul>
GF is open-source software licensed under
<a href="LICENSE">GNU General Public License (GPL)</a>.
<h2>Examples and demos</h2>
<a href="http://www.cs.chalmers.se/~bringert/gf/translate/">Numeral
translator</a>: recognizes and generates
numbers from 1 to 999,999 in 80 languages.
(The link goes to a live applet, which requires
<a href="http://java.sun.com/j2se/1.5.0/download.jsp">Java 1.5 plugin</a>.
Here is an <a href="doc/2341.html">example</a>, which does
not require the plugin.)
<p>
<a href="http://www.cs.chalmers.se/%7Ekrijo/letter-applet.html">Letter editor</a>:
write simple letters in English, Finnish,
French, Swedish, and Russian with a few mouse clicks.
<p>
<a href="lib/resource/">Resource grammar library</a>:
basic structures of seven languages
(English, Finnish, French, German, Italian, Russian, Swedish).
Resource grammars can be used as libraries for writing GF
applications,
but they can also be useful for language training.
<h2>Executable programs</h2>
GF is available precompiled for
several platforms: Linux, Mac OS X, Microsoft Windows, and Sun OS.
For more information, see the <a href="download/gf-download.html">Download Page</a>.
<h2>Source code</h2>
The main part of GF is written in
<a href="http://www.haskell.org/">Haskell</a>.
<p>
The platform-independent graphical user interface is written in
<a href="http://java.sun.com/">Java</a>.
</p><p>
Here is a
<a href="gf-src.tgz">GF source package</a>, which includes a Makefile
for different platforms and Haskell compilers.
The <a href="download/gf-download.html">Download Page</a> gives more information on
compiler requirements.
</p><p>
Here are some older source packages still available:
<a href="http://www.cs.chalmers.se/%7Eaarne/GF/gf-src-1.0.tgz">GF 1.0</a>,
<a href="http://www.cs.chalmers.se/%7Eaarne/GF/gf-src-0.976.tgz">GF 0.976</a>.
</p><h2>Documents</h2>
<ul>
<li>
<a href="doc/javaGUImanual/javaGUImanual.htm">User's tutorial</a>
on editing in the Java interface.
</li><li>
<a href="Tutorial/gf-tutorial.html">Grammarian's tutorial</a>
on writing GF grammars, with exercises.
</li><li>
<a href="doc/short/gf-short.html">
GF in 25 Minutes</a> for programmers.
</li><li>
<a href="http://www.cs.chalmers.se/~aarne/articles/gf-jfp.ps.gz">Grammatical Framework: A Type-Theoretical
Grammar Formalism</a> (ps.gz). Theoretical paper on GF by A. Ranta, appeared
in <i>The Journal of Functional Programming</i>, vol. 14:2. 2004, pp. 145-189.
</li><li>
<a href="doc/gf-manual.html">
User Manual</a> explaining the GF user interfaces and command language.
</li><li>
<a href="doc/DocGF.pdf">
Language specification</a> of the GF grammar formalism.
</li><li>
<a href="doc/gf2-highlights.html">
Highlights</a> of Version 2.0 (in comparison with version 1.1).
</li><li>
<a href="doc/gf-bibliography.html">
Bibliography</a>:
publications on GF, as well as background literature.
</li></ul>
<h2>Projects and events</h2>
<a href="http://www.talk-project.org">TALK</a> = Tools for Ambient Linguistic
Knowledge</a>. GF is used in implementing multimodal and multilingual dialogue systems.
<p>
<a hred="http://www.key-project.org/">KeY</a> project on Integrated Deductive
Software Design. GF is used for
authoring informal and formal specifications. More details on the GF
application
<a href="http://www.cs.chalmers.se/%7Ekrijo/GF/specifications.html">
here</a>.
<p>
An introductory course on GF was given at the
<a href="http://www.logic.at/esslli03/">ESSLLI summer school</a>
in Vienna 2003.
<h2>Miscellaneous</h2>
</li><li>
<a href="http://www.cs.chalmers.se/%7Ekrijo/gramlets.html">Gramlets</a>:
GF grammars compiled to Java applets.
</li><li>
<a href="http://www.cs.chalmers.se/~aarne/GF1">
Previous version of the GF Home Page</a>
last updated for GF, Version 1.2, 2003.
</li><li>
<a href="http://www.xrce.xerox.com/competencies/content-analysis/past-projects/gf/home.en.html">
The GF Xerox Home Page</a>
with the oldest releases of and documents on GF, Version 0.54, 1999.
</li><li>
Earlier application:
<a href="http://www.cs.chalmers.se/%7Ehallgren/Alfa/Tutorial/GFplugin.html">
Natural-Language Interface to the proof editor Alfa</a>.
</li><li>
<a href="http://www.cs.chalmers.se/%7Emarkus/BNFC">The BNF Converter</a>.
A GF spin-off customized for the description of programming
languages.
</li><li>
<a href="http://www.cs.chalmers.se/%7Eaarne/morphology">The Functional
Morphology project</a>. Creating infrastructure for GF and other
linguistic applications.
</li></ul>
<h2>Authors</h2>
The <a href="http://www.cs.chalmers.se/Cs/Research/Language-technology/">
Languge Technology Group</a>.
More details on the
<a href="http://www.cs.chalmers.se/%7Eaarne/GF/doc/gf-people.html">
Authors and Acknowledgements</a> page.
<h2>Implementation project</h2>
Want to become a GF developer? Contact
<a href="http://www.cs.chalmers.se/%7Eaarne/">Aarne Ranta</a>.
Or just get the sources and start hacking.
<hr>
Last modified by
<a href="http://www.cs.chalmers.se/%7Eaarne">
Aarne Ranta</a>,
August 10, 2004.
</body></html>
|
