|2013-04-25:||New resource grammar language: Greek. See library synopsis.|
|2013-01-31:||GF 3.4 released! Release notes.|
|2012-12-10:||Resource Grammar Library coverage map, created by Tommi Nieminen.|
|2012-11-18:||GF Summer School in Frauenchiemsee, 18-30 August 2013.|
|2012-11-18:||New resource grammar language: Chinese. See library synopsis. Complete but not yet perfect.|
|2012-06-29:||GF sources now mirrored in GitHub, with change statistics and other browsing features. See github.com/GrammaticalFramework/GF|
|2012-05-07:||New resource grammar language: Japanese. See library synopsis.|
|2012-03-23:||There will be a GF tutorial at ICFP 2012 in Copenhagen.|
|2012-03-03:||GF 3.3.3 released! Release notes.|
GF, Grammatical Framework, is a programming language for multilingual grammar applications. It is
Don't worry if you don't know most of the references above - but if you do know at least one, it may help you to get a first idea of what GF is.
GF can be used for building
GF is open-source, licensed under GPL (the program) and LGPL and BSD (the libraries). It is available for
GF was first created in 1998 at Xerox Research Centre Europe, Grenoble, in the project Multilingual Document Authoring. At Xerox, it was used for prototypes including a restaurant phrase book, a database query system, a formalization of an alarm system instructions with translations to 5 languages, and an authoring system for medical drug descriptions.
Later projects using GF and involving third parties include, in chronological order,
Academically, GF has been used in four PhD theses and resulted in around fifty scientific publications (see GF publication list).
GF is easy to learn by following the tutorial. You can write your first translator in 15 minutes.
GF has an interactive command interpreter, as well as a batch compiler. Grammars can be compiled to parser and translator code in many different formats. These components can then be embedded in applications written in other programming languages. The formats currently supported are:
The GF programming language is high-level and advanced, featuring
Libraries are at the heart of modern software engineering. In natural language applications, libraries are a way to cope with thousands of details involved in syntax, lexicon, and inflection. The GF resource grammar library has support for an increasing number of languages, currently including
Adding a language to the resource library takes 3 to 9 months - contributions are welcome! You can start with the resource grammarian's tutorial.