Regex

A crap NFA-based text-directed regex engine written for fun (beta)

To test:

python regex.py

Currently only parses a subset of the POSIX regex spec

Supports most of the POSIX BRE spec, including variable-width lookarounds †

What it doesn't support (yet):

• Capture groups
• Backreferences

_{† negative lookarounds are greedy, i.e they'll reject if the expression is found anywhere ahead of (resp. behind) the current pos}