This fork of Google RE2/J which is a port of
Google RE2 to pure Java. The main difference
is that this fork contains a port of the RE2 DFA, which is not part of RE2/J.
Additionally, there are some performance improvements, and the code has been
changed from Java String to Slice, which is a byte[] wrapper used by the
Trino project.
Please see the Google projects for more information about RE2.