CUP is a system for generating LALR parsers from simple specifications. It serves the same role as the widely used program YACC and in fact offers most of the features of YACC. However, CUP is written in Java, uses specifications including embedded Java code, and produces parsers which are implemented in Java.

Apache Impala Query Engine Frontend

Maven plugin for Java CUP parser generator. Uses CUP 0.11a (with CZT updates).