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20b271a238
Common code has been lifted out from the generated Haskell modules to an auxiliary module PGF.Haskell, which is currently included in the regular PGF library, although it is independent of it and probably belongs in a separate library. The type Str used by linearization functions is now based on a token type Tok, which is defined in PGF.Haskell. PGF.Haskell.Tok is similar to the type GF.Data.Str.Tok, but it has constructors for the special tokens BIND, SOFT_BIND and CAPIT, and there is a function fromStr :: Str -> String that computes the effects of these special tokens.
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.)