This reminds me of "the comma rule" which I haven't quite internalized yet.
This gets a little closer
map { .[0,2…∞], .[1,3…∞] }, ("012345".comb,)
(((0 2 4) (1 3 5)))
and my instinct is that "map" is adding a layer you don't need or want for
this issue, should just be sending the results of comb to a block. But I
can't quite get the syntax right (and docs.raku.org seems down at the
moment)
I sent a variation of this as a potential question to Perl Weekly
Challenge, maybe it will get a bunch of answers in a few weeks!
-y
On Sat, Aug 21, 2021 at 3:05 AM Marc Chantreux <e...@phear.org> wrote:
> hello,
>
> i would like to get the list of opening (α) and closing
> (ω) separators from this string:
>
> &""''(){}[]
>
> too many years of perl made me think about this solution
> or something alike but it didn't work.
>
> my (\α,\ω) =| map
> { .[0,2…∞], .[1,3…∞] },
> q&""''(){}[]&.comb;
>
> fixing this is important to me because it illustrate how bad i am to
> comprehend how raku flatten things.
>
> regards,
> marc
>
>
>
