Arc Forum | It's actually in-between: (f:g a b c) becomes ((compose f g) a b c) , which ...

Arc Forum

2 points by absz 5773 days ago | link | parent

It's actually in-between:

  (f:g a b c)

becomes

  ((compose f g) a b c)

, which normally wouldn't work if f or g were a macro; however, compose is special-cased in ac.scm so that in the head of a list, this becomes

  (f (g a b c))

. Thus, : only works with macros at the head of a list. You can't do

  (f a b macro:function c)

.