JavaCC is a compiler compiler for Java.  It is similar to lex/yacc.
Your output is a set of Java classes that can parse data defined
by your grammar.

This includes JJTree, a preprocessor that greatly simplifies the
construction of abstract syntax trees.  Also included is JJDoc, a
tool that can generate documentation for your grammar.

WWW: https://javacc.dev.java.net/

- Andy Gerweck
gerweck@yahoo.com