It also has all of the Perl 5 regex syntax too, so you can still use anything legacy or if you prefer to stick to something more portable. It's just the "defaul

It also has all of the Perl 5 regex syntax too, so you can still use anything legacy or if you prefer to stick to something more portable. It's just the "default" regex is the new syntax. You can also put in any other "language" for them that you feel like, so POSIX maybe shell glob? I think at least POSIX probably exists in the ecosystem ;)