So I figured out a way to do simple regex and LL(1) parsing inside a SQL92 compliant RDBMS, using stored procs and a few tables for parsing and scanning.
The upshot of this is if you pass complicated structured textual data - anything from an URL to an email addy, to say, JSON, you can get the thing to validate and perhaps even normalize the data for you.
I don't want to expend the effort on something nobody cares about anymore though, and I've been out of business dev for years.
So is something like that useful still?
What I have tried:
I haven't tried anything yet. This isn't really that kind of question