Regex Literals Optimization

- Esteban Borsani tl;dr: "Avoids running the regex engine on parts of the input text that cannot possibly ever match the regex." It’s around ~100x faster than before in some benchmarks.

featured in #217

Online Regex Tester

- Firas Dib tl;dr: Free PCRE-based regular expression debugger with real time explanation, error detection and highlighting.

featured in #150