hoon: updates +rap comment, removes jet-match hack
?: =(0 b) c
$(b (rsh a b), c +(c))
::
-++ rap :: assemble nonzero
+++ rap :: assemble variable
~/ %rap
|= [a=bloq b=(list @)]
^- @
- =+ ~ ::REMOVEME jet dashboard bump
?~ b 0
(cat a i.b $(b t.b))
::
