MUF does not attempt to be Lisp, but it does provide basic
support for Lisp-style Lists -- binary trees built from
cells. Lisp lists are not terribly efficient in time and space,
but they are unmatched in flexibility: If you are doing something
like recursively rewriting expressions in place (perhaps in a
compiler or while doing a little symbolic algebra), they can
turn dismal drudgery to delight.
This isn't the place to explain programming with Lists, so I'll
just give some samples of what is available. Much of it is
muq/pkg/100-C-lists.t and as usual you
should see the MUF reference manual for further documentation.
root: "a" "b" cons root: #<cons> car root: "a" pop root: [ "a" "b" "c" "d" ] root: #<cons> dup car , "\n" , cdr a root: #<cons> dup car , "\n" , cdr b root: #<cons> dup car , "\n" , cdr c root: #<cons> dup car , "\n" , cdr d root: nil pop root: [ [ "a" "b" "c" ] | :: car ; maplist --> _l root: _l first _l second _l third root: "a" "b" "c" pop pop pop root: 'd' [ 'a' 'b' 'c' ] member? root: nil pop root: 'b' [ 'a' 'b' 'c' ] member? car root: 'b' pop root: [ 'a' 'b' ] [ 'c' 'd' ] nconc --> _l root: _l first _l second _l third _l fourth root: 'a' 'b' 'c' 'd' pop pop pop pop root: [ [ 'your 'house ] [ 'your 'spouse ] ] --> _l root: 'my 'your _l nsubst printList root: "[ [ 'my 'house ] [ 'my 'spouse ] ]"
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