convert.toCFG converts a context free
grammar (CFG) into Backus-Naur-Form (BNF).
empty-categories.simplify removes all
unreachable empty categories (non-terminals) from a CFG.
bnf.toCFG converts a BNF back into the
usual format with grammar rules and lexicon entries.
writes a BNF as a string onto a file. These strings are
in Lernout&Hauspie (L&H) format for speech recognition
with the ASR 1600.
Note that parsers for context free grammars can be generated with the package unification grammars as every context free grammar is a unification grammar (without any change or syntactic manipulation).
You can install the package
by using ozmake:
ozmake --install --package=niehren-context-free-grammar-1.0
or extact (and later on compile) the source code (again with ozmake):
ozmake --extract --package=niehren-context-free-grammar-1.0