[Class]

accumulation

For each item, generates all items up to and including the current item. The process starts over when all the items have been accumulated.

Examples:

(define x (new accumulation :of '(a b c d)))

(next x #t)
⇒ (a a b a b c a b c d)

See also:

• cycle [Class]
• funcall [Class]
• graph [Class]
• heap [Class]
• join [Class]
• line [Class]
• markov [Class]
• palindrome [Class]
• random [Class]
• range [Class]
• rewrite [Class]
• rotation [Class]