[alexandria-devel] [RFC] collect-duplicates

[Kilian Sprotte]

Andreas Fuchs <asf <at> boinkor.net> writes:
> Prompted by a discussion on #lisp, I've made the following
> collect-duplicates function: Takes a sequence and a test, and returns
> as two values a sequence of duplicates and a sequence of the duplicate
> count (matching their sequence type to the input sequence's).

Hi Andreas,

well, if you ask me, I would very much like to see this in alexandria.

If it makes any sense, I can offer help writing test cases... But
before that, just a question: I was running it on a string. Should the
type of the result sequences be overidable?

Best,
 Kilian