On Sat, Aug 04, 2007 at 12:56:06PM -0700, Larry Wall wrote:
> for '❶' .. '❿' { .say }
>
> But it's not clear what to do if you try to increment ❿ though.
> Probably just return a failure.
Assuming that '❶' .. '❿' is a range similar to '0'..'9', then
consistency with the other ranges would seem to indicate that
incrementing 'a❿' produces 'b❶', and incrementing '❿' on its
own would produce '❶❶'. (Unless, of course, '❿' is treated as
a "number in any common representation", in which case incrementing
it produces 11.)
I'm not saying that anything involving the dingbats makes good
sense -- just that this is what I would tend to expect to happen
based on how the other ranges autoincrement. Feel free to insert
pithy quotes about consistency and hobgoblins here. :-)
And so we don't get bogged down in (relatively unimportant) details,
I'll refrain from shouting "look at the ugly corner cases!" for now
and leave it to others to decide how/when to push this. The changes to
S03 and clarifications give me enough to proceed for now -- namely:
Strings that look like numbers or that don't end in \w+ are numified
and then incremented, whereas strings ending with \w+ are incremented
according to individual character ranges. The exact set of ranges are
still under discussion, but the ranges A-Z, a-z, and 0-9 have the
"expected" semantics.
Others can continue on the discussion if wanted, but as an implementor
I'm happy with this outcome for now. :-)
Thanks!
Pm
