The clojure.core has this juxtapostion function which i find very useful. I wonder how easy is it to implement in newLisp.
Takes a set of functions and returns a fn that is the juxtaposition
of those fns. The returned fn takes a variable number of args, and
returns a vector containing the result of applying each fn to the
args (left-to-right).
e.g
((juxt a b c) x) => [(a x) (b x) (c x)]
I am not worried whether this function returns a vector or a list.
Try this on for size. Maybe there is a better way though.
(letex (_args (args))
(lambda (x)
(let (fs '_args)
(map (lambda (f) (f x)) fs)))))
That is amazing.
Someday I will also get to learn the black art of macros.