The BNF Converter (bnfc) is a compiler construction tool generating a compiler front-end from a Labelled BNF grammar. It is currently able to generate C, C++, C#, Haskell, Java, and OCaml, as well as XML representations.

Given a Labelled BNF grammar the tool produces:

• an abstract syntax implementation
• a case skeleton for the abstract syntax in the same language
• an Alex, Ocamllex, JLex, or Flex lexer generator file
• a Happy, Ocamlyacc, Menhir, ANTLR, CUP, or Bison parser generator file
• a pretty-printer as a Haskell/Ocaml/Java/C++/C module
• a Latex file containing a readable specification of the language

More information: http://bnfc.digitalgrammars.com/

Everything needed to build bnfc is available in the haskell platform.

On Debian, you can install the dependencies as follows

sudo apt-get install haskell-platform

On Fedora:

yum install haskell-platform

Then proceed with the installation.

Some binaries are available at https://github.com/BNFC/bnfc/releases .

To install bnfc from hackage.haskell.org:

cabal install BNFC

To install the development version of bnfc:

git clone https://github.com/BNFC/bnfc.git
cd bnfc/source
cabal install

https://bnfc.readthedocs.org/en/latest/

Here is how to build and run the different test suites for bnfc.

cabal sandbox init # Cabal >= 1.18 only
cabal install --only-dependencies --enable-tests
cabal configure --enable-tests
cabal build
cabal test

• Issue Tracker: https://github.com/BNFC/bnfc/issues
• Source Code: https://github.com/BNFC/bnfc
• Haskell coding style guide: https://github.com/andreasabel/haskell-style-guide/
• Some pull request etiquette:
  • Document, document, document! (See style guide)
  • Include test cases that cover your feature.
  • Include changelog entry.
  • More etiquette: E.g. https://gist.github.com/mikepea/863f63d6e37281e329f8

If you are having issues, please let us know. We have a mailing list located at: bnfc-dev@googlegroups.com

The project is licensed under the GNU GENERAL PUBLIC LICENSE Version 2.