destructuring options

gistfile1.clj

;;given a url of this structure <base>/Publish<type>?id=<id>&update=<1 or 0>
(def content-url "http://www.somesite.com/PublishContent?id=42&update=1")
(def article-url "http://www.somesite.com/PublishArticle?id=42&update=1")

(let [[_ type] (re-find #"Publish([Content Article]*)" content-url)
      id   (last (re-find #"(id=)([a-zA-Z0-9]*)" content-url))
      update? (last (re-find #"(update=)(\d)" content-url))]
    {:type type
     :id id
     :update? update?}) 
;;output {:type Content :id 42 :update? 1}

(let [[_ type id update?] (re-find #"Publish([Content Article]*)\?id=([a-zA-Z0-9]*)\&update=(\d)" article-url)]
  {:type type
     :id id
     :update? update?})
;;output {:type Article :id 42 :update? 1}
     
;;DISCUSSION
;;In this case I have one string that I'm operating on
;;in the content.type example I used the vector destructuring to pull out the one part that I wanted
;;in the content.id and update? part I used last of the return value 
;;in the article example I just wrote one regex and destructured it in one shot