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ray1729/gist:5755484

Created June 11, 2013 09:03
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Find 4-9 letter words in a file.
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gistfile1.clj
(defn filter-file [filename]
  (with-open [rdr (io/reader filename)]
    (reduce (fn [words line]
              (into words (filter #(<= 4 (count %) 9) (str/split line #"\s+"))))
            #{}
            (line-seq rdr))))
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