Hacker News new | ask | show | jobs
by stevefan1999 2691 days ago
Sigh. https://swtch.com/~rsc/regexp/regexp1.html

Sadly, RegEx has evolved far away from the original regular expression we learnt in school, and it is certainly less NFA like. This make it harder to execute a faster speed, e.g. backtracing makes it more context sensitive etc.