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
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