So, this "nonlat?" is a function that takes one parameter, which is named "list" internally. It returns the result of calling "null?" on that parameter, i.e. the list. Of course, to do that, you...

That is only a partial answer, as I still don't know the format. If you can take it in as a stream (as the possibility of added data over time suggests), you can store the values successively in a...

How are the data stored? What language do you use?

I use SBCL with SLIME in Emacs, and I think that it's a nice setup to start with.

There is also LispWorks Personal Edition, which is free for personal use, but has some "nagging" limitations. ...

I believe that (split '(2 3 4 6) 4) should return ((2 3) (4 6)), according to the specification.



OK, first a little cleanup: having an (else (cond ;... clause in a cond form is not sensible;...

I would do this with two mutually recursive functions:


(define (list-next? ls)
(cond ((null? ls) #t)
((list? (car ls))
(atom-next? (cdr ls)))
(#t #f)))

(define...