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Some C run-time functionality is now available in the GF shell, by starting GF with 'gf -cshell' or 'gf -crun'. Only limited functionality is available when running the shell in these modes: - You can only import .pgf files, not source files. - The -retain flag can not be used and the commands that require it to work are not available. - Only 18 of the 40 commands available in the usual shell have been implemented. The 'linearize' and 'parse' commands are the only ones that call the C run-time system, and they support only a limited set of options and flags. Use the 'help' commmands for details. - A new command 'generate_all', that calls PGF2.generateAll, has been added. Unfortuntaly, using it causes 'segmentation fault'. This is implemented by adding two new modules: GF.Command.Commands2 and GF.Interactive2. They are copied and modified versions of GF.Command.Commands and GF.Interactive, respectively. Code for unimplemented commands and other code that has not been adapted to the C run-time system has been left in place, but commented out, pending further work.
DESCRIPTION
The Grammatical Framework (=GF) is a grammar formalism based on type theory.
It consists of
* a special-purpose programming language
* a compiler of the language
* a generic grammar processor
The compiler reads GF grammars from user-provided files, and the
generic grammar processor performs various tasks with the grammars:
* generation
* parsing
* translation
* type checking
* computation
* paraphrasing
* random generation
* syntax editing
GF particularly addresses four aspects of grammars:
* multilinguality (parallel grammars for different languages)
* semantics (semantic conditions of well-formedness, semantic
properties of expressions)
* grammar engineering (modularity, abstractions, libraries)
* embeddability in programs written in other languages (C,C++,
Haskell, Java, JavaScript)
COMPILATION and INSTALLATION of source distribution:
See download/index.html for installation instructions.
(More details can be found in doc/gf-developers.html.)