a parser generator system built upon Sun Microsystems JavaCC tool and the PurdueUniversity^? Java Tree Builder (JTB) tool. NewJacc's principle extension is to provide users with a way to associate rewrite rules with individual productions in the language grammar. These rules are used to describe how the parse tree should be traversed. Users can easily control what action is performed at each node in the tree during their traversals. This provides users with great leverage in the construction of a variety of source to source translation tools.

• JohnCallahan

• http://research.ivv.nasa.gov/projects/tools.html
• http://research.ivv.nasa.gov/projects/njacc/manual.htm