forked from GitHub/gf-core
2df2d4a683
The print_history command was among the commands implemented in an ad-hoc way instead of being handled by the command line interpreter, which means it could not be used in a pipe, as in the example in the help info. The refactoring in the previous patch made this old bug easy to fix. Also fixed a bug in the "empty" command, introduced when moving the PGF from CommandEnv to GFEnv. TODO: fix the undocumented eh command. A comment in the help info for print_history, and some commented out old code, suggest that eh means "execute_history", but at present it does nothing...
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.)