Looks like you could make the (println) depend directly on (re-find): (when (re-find rx line) (println line))
The check for empty line and tab might be taken care of by (re-find) to further reduce the code to something like: (when (and line (re-find rx line) (println line) (recur (read-line))) On Feb 16, 2:01 am, Michael Sanders <bluelamp...@gmail.com> wrote: > mss wrote: > > Hi folks, new to Clojure... > > > Question: > > > How do I rid the following functions of all the '(def STATE num)' > > calls? I can not seem to work out a way to use either 'binding', or > > 'let/atom' that wraps the loop & works as well... Any other comments > > are always welcomed. Here's my code: > > > (defn load-block ([foo] > > > (def STATE 0) > > (def rx (re-pattern (str "(?i)" foo "[[:space:]]*(,|$)"))) > > > (loop [line (read-line)] > > (when line > > (when (and (not= "" (s/trim line)) ; line not empty > > (not= "\t" (subs line 0 1))) ; line does not begin w/ > > a tab > > (if (re-find rx line) > > (def STATE 1) > > (def STATE 0))) > > (if (= STATE 1) > > (println line)) > > (recur (read-line)))))) > > I think I've worked out a better solution (hope this post renders properly): > > (ns topic (require [clojure.string :as s])) > > (defn load-block > > "TOPIC database: prints associated blocks to stdout" > > ([tag] > (let [STATE (atom 0) > rx (re-pattern (str "(?i)" tag "[[:space:]]*(,|$)"))] > (loop [line (read-line)] > (when line > (when (and (not= "" (s/trim line)) > (not= "\t" (subs line 0 1))) > (if (re-find rx line) > (reset! STATE 1) > (reset! STATE 0))) > (if (= @STATE 1) > (println line)) > (recur (read-line)))))))- Hide quoted text - > > - Show quoted text - -- 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
