each holds a value, tagged %&, or an error, tagged %|. slaw reads text as an aura and produces a unit.
the program is a gate. finish it: the number in text, or an error that says why not.
|= makes a gate: a function with one named sample, then a body.
the body runs with the sample bound.
call the gate to run it.
(|=(a=@ (add a 1)) 4) is 5.
$= wraps a mold with a face, naming the value it produces.
$=(x @) is the mold x=@.
%= resolves a wing with some faces changed.
=/(a [x=1 y=2] a(x 9)) is [x=9 y=2].
irregular forms:
a(x 9) is %=(a x 9)
$(a b) restarts a loop with a changed to b