And here's a followup: http://www.drregex.com/2018/11/how-to-match-b-c-where-abc-beast-reborn.html http://www.drregex.com/2018/11/how-to-match-b-c-where-abc-be.

And here's a followup: http://www.drregex.com/2018/11/how-to-match-b-c-where-abc-beast-reborn.html http://www.drregex.com/2018/11/how-to-match-b-c-where-abc-be... (with a rege101 demo that's still live)