On Wed, Apr 03, 2002 at 12:53:33PM -0500, John Siracusa wrote:
> So it's the order that they appear that determines their binding? How would
> something like this (Perl 5 code) be represented:
>
> sub reverse_minus { $_[1] - $_[0] }
>
> I would have guessed it'd be:
>
> { $^b - $^a }
>
> But if the place-holder names can be anything, I'm not sure how you could
> bind place-holders "out of order" with respect to the things that they
> alias.
If I remember correctly, there are also positional placeholders:
{ $^1 - $^0 }
or you should be able to do this:
-> $a,$b { $b - $a }
if you don't need the currying semantics of the placeholders, but
our %operator is private //= (
'*' => -> $a,$b { $a * $b },
'/' => -> $a,$b { $a / $b },
'~' => -> $a,$b { ($a + $b) / 2 },
);
looks strange.
-Scott
--
Jonathan Scott Duff
[EMAIL PROTECTED]
