On Tuesday, August 8, 2017 at 11:38:34 AM UTC-5, larry....@gmail.com wrote:
> Anyone have any code or know of any packages for validating a regexp?
> I have an app that allows users to enter regexps for db searching.
> When a user enters an invalid one (e.g. 'A|B|' is one I just saw) it
> causes downstream issues. I'd like to flag it at entry time.
IIRC, there is a built-in regexp builder/tester in Boa Constructor:
I used this a long time ago.