Jrexx is a regular expression api for textual pattern matching based on the finite state automaton theory. its matching algorithm is extremly fast and works with huge patterns and input texts. jrexx also offers set operations (union, intersection, difference, complement) for combination of automatons.

features

* creation of deterministic regex automatons from pattern strings
* extremly fast pattern matching of input strings
* combination of automatons with set operations (unify, intersect,
substract, complement)
* introspection of the automaton's structure by states and transitions
* jrexx is implemented in 100% pure java and runs on any platform
providing a java runtime environment (jre) version 1.3.x or greater