cool.
Have you added this to the Rubygarden wiki? …preferably under algorithms?
martindemello@yahoo.com [mailto:martindemello@yahoo.com] said:
…A modification of Joel VanderWerf’s
EnumerableOperator#product to include
restrictions (‘select’ style filters that are applied as
the product is # constructed). Behaviour defaults to the
Cartesian product when no filters are # given. (List
comprehension envy again ) #The argument list consists of a mixture of factors
(Enumerable objects) # and restrictions (procs returning a boolean).
Factors appear in order; restrictions are sorted by arity,
so that a # restriction of arity n is applied after the nth
element in every tuple is # added.
[snipped code]
By algorithms I take it