Pne-more-re-nightmare – A fast regex compiler in Common Lisp

Comments moved to https://news.ycombinator.com/item?id=29397799, which was posted earlier.

Explanation for those interested: sometimes we re-up posts a la the second-chance pool (https://news.ycombinator.com/pool, explained at https://news.ycombinator.com/item?id=26998308), and when we do that we try to privilege the earliest submitter and/or to share karma with them. It's on the list to make the software do this in the future, so different submitters can automatically share in the credit for posting something great like this (thanks btw!)