🥇 Analisar string de duração em clojure (ou Java)

(ns x (:import [org.joda.time Period]))

(defn- period-handler
  "Handles duration tags for EDN. Returns the period in milliseconds.
   The format must be in ISO-8601: http://en.wikipedia.org/wiki/ISO_8601#Durations
   All spaces are ignored and removed prior to parsing.
   Additionally if the parsing fails it will be retried with "PT""+in
   Example:
   (period-handler ""PT 1m"") ;
   (period-handler ""1m 3.53s"") ;""
  [in]
  (let [s (string/replace in #""[ trn]"" """")]
    (or
      (try
        (.getMillis (.toStandardDuration (Period/parse s)))
        (catch Exception _ nil))
      (try ; If prev didn't work we append ""PT"" to the string so we allow strings like ""5m 2s""
        (.getMillis (.toStandardDuration (Period/parse (str ""PT"" s))))
        (catch Exception _ nil)))))
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