I'm having trouble with figuring out something. First, to get the first element of a sequence so that (pred element) is false, you do (first (drop-while pred sequence)). This is lazy, and stops immediately when the element is found.
Now, I want to get the element *right before* the element returned by (drop-while pred sequence)). I could use reduce, but that is non-lazy and always goes through the entire sequence. The sequences I'm working with are very big. So, is there a lazy way to get the element right before the first element that doesn't fulfill the predicate? Thanks in advance. -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to [email protected] Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/clojure?hl=en
