HV-920 Adding a regular expression based URL constraint validator which ...

...needs to be configured via XML or via a ConstraintDefinitionContributor
> So we have Ha ha, Aha Aha and apparently Ahaha. What is that, a combination of both? ;-)

LOL, really had to lough when reading it :)

I share your interpretation of "Haha" and "Aha". To me, "Ahaha" is a stronger form of "Haha" :-D