This directory contains an interoperability example for BYacc/J and JFlex (a small calculator) You need the parser generator byacc/j from http://troi.lincom-asg.com/~rjamison/byacc/ for this example to work (version byacc/j 1.1 has been tested). Use the Makefile to generate the lexer and parser. The example can then be started with java Parser files: calc.flex JFlex specification for the lexical part of the arithmetic expressions calc.y BYacc/J specification and main program for the calculator