When I say:

"if (x =~ /pat/)"  everything is OK.  When I trty to pass this 
expression as an argument to a method expecting TrueClass or FalseClass, 
I get a problem.  I assume that this expression is an Array of 
"backreferences".  Is this correct?  If so, how can "coerce" this to be 
a boolean as one uses in the if.?

Thanks.