JFlex is a lexical analyzer generator for Java written in Java. It is
also a rewrite of the very useful tool JLex which was developed by
Elliot Berk at Princeton University. As Vern Paxson states for his C/C++
tool flex: they do not share any code though.

Design goals The main design goals of JFlex are:

* Full unicode support
* Fast generated scanners
* Fast scanner generation
* Convenient specification syntax
* Platform independence
* JLex compatibility