On Fri, Jan 9, 2009 at 9:08 PM, James Reeves <[email protected]> wrote: > > On Jan 10, 12:22 am, wubbie <[email protected]> wrote: >> How can you add line numbers for each line printed from the file. >> Without line number, I have this: >> >> (with-open [rdr (reader "executors.clj")] >> (filter #(println %) (line-seq rdr))) > > I don't believe there's a function to do this, but it's easy enough to > add one: > > (defn zip-index [coll] > (map vector coll (iterate inc 0))) > > This will create a sequence of items paired with their indexes: > > => (zip-index [:a :b :c]) > ([:a 0] [:b 1] [:c 2])
In clojure.contrib.seq-utils, there is indexed, which is nearly exactly the same: user> (clojure.contrib.seq-utils/indexed [:a :b :c]) ([0 :a] [1 :b] [2 :c]) k --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to [email protected] 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 -~----------~----~----~----~------~----~------~--~---
