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949 B
dotwut,.?
, %dtwt
Noun or cell
.?
, dotwut
, [%dtwt p=twig]
is a natural hoon that applies nock 3
to a noun: if the noun is a cell, it returns the loobean &
(true); if
the noun is an atom, it returns the loobean |
(false).
Produces
Twig: [%dtwt p=twig]
Sample
p
is a twig.
Tall form
.? p
Wide form
.?(p)
Irregular form
None
Examples
~zod/try=> .?(~)
%.n
~zod/try=> .?(5)
%.n
~zod/try=> .?(~porlep)
%.n
In all of these cases our sample is implicitly down-cast to an atom,
which produces |
.
~zod/try=> .?([1 2 3])
%.y
~zod/try=> .?("ha")
%.y
~zod/try=> ._a_b__
[%a %b]
~zod/try=> .?(._a_b__)
%.y
[1 2 3]
is clearly a cell, "ha"
is equivalent to the null-terminated
tuple of its ASCII codes, and ._a_b__
is also clearly a cell. Each
produce &
.