I'm having a hard time coming up eith examples where I need anything otehr than union and difference for character classes. Most of the predefined character classes are disjoint, so intersection is almost useless. So for now let's just stick with + and - and simple sets with not parens, unless we can come up with cases that really need anything more complicated.
-- Mark Biggar [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] -------------- Original message -------------- > On Sat, May 28, 2005 at 12:58:01AM -0400, Jeff 'japhy' Pinyan wrote: > >[ set notation for character classes ] > > > > What say you? > > Off the top of my head I think using & and | within character classes > will cause confusion. > > / (<~(X & Y) | Z> | ) & / > > So much for the "visual pill" of > > Also, character classes don't currently utilize parentheses for > anything. This is a good thing as you don't have to distinguish between > which parens are within assertions and which are without. Or do you > proposed that even the parens within assertions should capture to $0 > and friends? > > -Scott > -- > Jonathan Scott Duff > [EMAIL PROTECTED]
