You can combine 'drop and 'drop-last to get a seq version of subvec (but > lazy and O(n)). As for the issue of concrete types: in general, clojure's > sequence functions return seqs, not instances of whatever concrete type you > gave them. If you need a specific type, you normally just pour the result > through 'into or one of the specific collection creation functions.
Do you mean something like this: (defn subseqx [s start end] (into (empty s) (drop-last (- (count s) end) (drop start s)))) Two things I don't like it: 1. It does not work (subseqx [1 2 3] 1 3) => [2 3] (subseqx '(1 2 3) 1 3) => (3 2) because "into" will reverse the order on sequence. 2. kind of ugly for such a simple thing, and may not be efficient either. Any SIMPLE way to do it? I need concrete type unchanged. I don't think that is a rare need/use case. PS: when I say "sequences", how should I distinguish between general sequence and concrete sequences? Any conventions for the wording? -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
