I’m working on the next RegEx Knife 2 maintenance release, version 2.0.1. This release addresses a series of iOS 11 compatibility issues and adds support for named capture groups.
iOS 11’s regular expression engine handles named capture groups in the following ways:
Here’s how named capture groups are displayed in RegEx Knife:
If you are want to help out by testing RegEx Knife, please get in tough with me via email or Twitter.