On Tue, 3 Sep 2002, Brent Dax wrote: > Damian Conway: > # Neither. You need: > # > # $roundor7 = rx /<<roundascii>+[17]>/ > # > # That is: the union of the two character classes. > > How can you be sure that <roundascii> is implemented as a character > class, as opposed to (say) an alternation?
What's the difference? :) Neglecting internals, semantically what I<is> the difference? Luke
