> here are the definitions in F's joy dialect:
>
> [[dup count [] top] dip swap [quote uncons dip dup top
> [cons unit apply first swons] dipd] do pop pop rev] map
>
> [quote stack dipd [quote unit map quote join right] dip
> quote join left [unit apply last] map] Map
>
> as you can see, 'Map' uses 'stack', 'map' does not.
>
> nb:
>
> quote x -> [x]
> x y z top -> z x y
> [x y z] rev -> [z y x]
> x [y z w] f -> [x y f i x z f i x w f i]

this should be:

x [y z w] f right -> [x y f i x z f i x w f i]

that is, apply f to x and each thing on the right of x.

Re: [stack] Re: 'stack' and 'unstack' in F (correction)

stevan apter — 2006-07-12 23:10:52