If I put together a good Tuple class for Ruby could it go into core? I
have a pure Ruby version that I find very useful, but it's so basic I
don't like making an extra dependecy just for it, and of course a core
version would be even tighter.

Just to be clear I mean Tuple as in N-Tuple. Essentially an Array but
Multiton and Comparable, with a bit of extra dressing to turn strings
of the form '1.2.3', '1-2-3', etc. into Tuples easily.

Thanks,
T.