While poking around I noticed that in pousse.ijs some of the verb definitions are terminated with ! instead of ) . For example see the verb run. Is this an undocumented feature? Does this signal something like recursion?
run=: 3 : 0
q=. a:-.~<;._2 y.,' '
n=. ".>{.q
q=. }.q
n runc q
!
(B=)
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