Thanks Alex,

In the context of

: (glue " " (filter prog (split (chop "  s  pac e s") " ")))
-> "s pac e s"


: (split (chop "  s  pac e s") " ")
-> (NIL NIL ("s") NIL ("p" "a" "c") ("e") ("s"))

it is not immediately obvious to me that the arguments passed to the
(filter prog ..) are treated as they are.

I'll have to think about it some more... and write more picolisp! but I am
confident I will figure it out in time =)


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