dregex is a Java library that implements a regular expression engine using deterministic finite automata (DFA). It supports some Perl-style features and yet retains linear matching time, and also offers set operations.
Latest version
[](https://index.scala-lang.org/marianobarrios/dregex/dregex)
JVM badge
[](https://index.scala-lang.org/marianobarrios/dregex/dregex)