Awesome, thanks Jason! It looks much cleaner. Dean
On Tuesday, March 4, 2014 4:47:12 PM UTC-5, Jason Felice wrote: > > Something like > > (with-open [rdr (clojure.java.io/reader "/dev/errors-sunday.csv")] > (->> (line-seq rdr) > (filter #(re-matches #"...")) > (map #(nth (string/split % #",") 1)))) > > Will do what you want. It's laziness to the rescue. > > > On Tue, Mar 4, 2014 at 3:21 PM, Dean Laskin <wdla...@gmail.com<javascript:> > > wrote: > >> I'm comparing two large files based on specific fields in the files. Is >> there a functional way of accumulating the results without atoms? (And >> since I'm a newbie, any other advice is appreciated!) >> >> (let [sun (atom []) fri (atom [])] >> (with-open [rdr (clojure.java.io/reader "/dev/errors-sunday.csv")] >> (doseq [line (line-seq rdr)] >> (when (re-matches #"^[^,]+,[^,]+,FAIL,.*$" line) >> (swap! sun conj (nth (string/split line #",") 1))))) >> (with-open [rdr (clojure.java.io/reader "/dev/errors-friday.csv")] >> (doseq [line (line-seq rdr)] >> (when (re-matches #"^[^,]+,[^,]+,FAIL,.*$" line) >> (swap! fri conj (nth (string/split line #",") 1))))) >> (println (nth (data/diff (set @fri) (set @sun)) 1)) >> ) >> >> Thanks, >> Dean >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Clojure" group. >> To post to this group, send email to clo...@googlegroups.com<javascript:> >> Note that posts from new members are moderated - please be patient with >> your first post. >> To unsubscribe from this group, send email to >> clojure+u...@googlegroups.com <javascript:> >> For more options, visit this group at >> http://groups.google.com/group/clojure?hl=en >> --- >> You received this message because you are subscribed to the Google Groups >> "Clojure" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to clojure+u...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > -- 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 --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
