Intelligent Advisor

Hello, I've been asked to establish methods of validating an e-mail address in OPA. I know that regular expressions can be used on attributes to throw errors at runtime, but we have a need to validate the e-mail string as part of a rule

i.e. the person's email is valid if........the data given complies with the follow reg exp

We're just using the determinations engine rather than any input screens hence the need for a rule.

If there a way of writing this into a word rule? Would the string functions match against regular expressions?

Thanks for any assistance,
Mark.