[Small-cl-src] a Clisp problem

[Xie Wen Sheng]

Hi ,All

I'm new to lisp, using GNU Clisp.

I have a problem when I do some Lisp programming training.

For example, for the list (a (b1 b2) c (d1 d2) (e1 e2 e3) f), I need a function to return all the possible combinations like:
((a b1 c d1 e1 f)
(a b1 c d1 e2 f)
(a b1 c d1 e3 f)
(a b1 c d2 e1 f)
(a b1 c d2 e2 f)
(a b1 c d2 e3 f)
(a b2 c d1 e1 f)
(a b2 c d1 e2 f)
(a b2 c d1 e3 f)
(a b2 c d2 e1 f)
(a b2 c d2 e2 f)
(a b2 c d2 e3 f))

My tries trended to be unsuccessful. Is it too easy to ask this here? If so, where is the forum for people like me?



best regards,

XIE Wensheng