Regex support

[danhealy]

Would it be possible to modify the input to support regex instead of a raw string?

That way we can search for case insensitivity, etc.

Thanks!

[frankh]

I was thinking of adding it but was worried about the performance cost, and in the end I didn't need it for what I wanted. I think I will add it at some point though

But fyi, there's no cases in xrb addresses, everything's lower case