Luke~
On 11/23/05, Luke Palmer <[EMAIL PROTECTED]> wrote:
> On 11/23/05, Rob Kinyon <[EMAIL PROTECTED]> wrote:
> > On 11/22/05, Larry Wall <[EMAIL PROTECTED]> wrote:
> > >
> > > for ^5 { say } # 0, 1, 2, 3, 4
> >
> > I read this and I'm trying to figure out why P6 needs a unary operator
> > for something that is an additional character written the more legible
> > way.
>
> Huh? Are you saying that 0..^5 is one more character than ^5?
>
> In any case, I'm not sure that this unary helps readability, or that I
> like it all that much, but I can say that it's damned useful. I use
> ranges of the form 0..$n-1 more than any other range, by a very long
> shot.
>
> > To me, ^ indicates XOR, so unary ^ should really be the bit-flip
> > of the operand.
>
> Except in Perl 6, XOR is spelled +^ or ~^, and ^ is Junctive one().
> So it seems that ^$x should be one($x). But that's an entirely
> useless, trivial junction, so it makes sense to steal the syntax for
> something else.
I think using C< ..5 > to mean (0, 1, 2, 3, 4) would be a more
sensible option. Makes sense to me at least.
Matt
--
"Computer Science is merely the post-Turing Decline of Formal Systems Theory."
-Stan Kelly-Bootle, The Devil's DP Dictionary
