Kyle Yetter has built a new and complete Ruby target for 3.3.

Previous author: Martin Traverso (mtraverso [at] acm [dot] org)

Functional at ANTLR 3.3. Handles:

• AST construction

• Built-in automatic test scripts to quickly try out your recognizer

• AST parser generation

• Debug mode features

• Grammar profiling features

• Template output mode (using a variation of ERB instead of StringTemplate)

• Lexer filter mode

More info.

Ruby target examples.