oniguruma

Regular expressions library compatible with POSIX/GNU/Perl

Oniguruma is a modern and flexible regular expressions library. It encompasses features from different regular expression implementations that traditionally exist in different languages. It comes close to being a complete superset of all regular expression features found in other regular expression implementations. Its features include: * Character encoding can be specified per regular expression object. * Several regular expression types are supported: * POSIX * Grep * GNU Regex * Perl * Java * Ruby * Emacs