Hey Thomas - How'd you get the nice syntax highlighting in your post?
Alan
On Sat, Jun 8, 2013 at 7:16 PM, Steven D. Arnold
<thoth.amon.i...@gmail.com>wrote:
> Thanks for the responses! As suggested, wrapping in 'doall' does work.
>
>
> On Jun 8, 2013, at 3:28 AM, Thomas Heller <th.hel...@gmail.com> wrote:
>
> (defn filter-file [filename]
> (with-open [rdr (io/reader filename)]
> (reduce (fn [words line]
> (->> (str/split line #"\s+")
> (filter #(and (<= (count %) 9)
> (>= (count %) 4)))
> (set)
> (set/union words)))
> #{}
> (line-seq rdr))))
>
>
> That code is really graceful and clean. I like it a lot. But for some
> reason I've never loved 'reduce' before, which probably means I've never
> used it where it is called for. Reduce just seems so generic... it's what
> you say when you haven't got anything better to say, something like "all
> right, do this."
>
> But, having said that, I'd pick your implementation over mine, because I
> think it's conceptually cleaner (as recursive algorithms often are). Nice.
> Thanks!
>
> steven
>
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