htmlclojurecompojureclojure-contrib

Compojure HTML Formatting


I'm relatively new to Clojure and a complete HTML/Compojure virgin. I'm trying to use Compojure to create static pages of HTML using a function similar to this:

(defn fake-write-html
  [dir args]
  (let [file (str dir *file-separator* *index-file*)
        my-html (html
                  (doctype :html4)
                  [:html
                   [:head
                    [:title "Docs and Dirs:"]]
                   [:body
                    [:div
                     [:h2 "A nice title"]]
                    [:div
                     [:ul
                      [:li "One"]
                      [:li "Two"]]]]])]
    (clojure.contrib.duck-streams/spit file my-html)))

The function just writes HTML to a file. (The args argument is irrelevant here. Just there to assure the example compiles and runs in my program.)

"Programming Clojure" indicated that the call to the html function would produce formatted HTML -- multiple lines with indentation. All I get is the doc type as expected followed by all of the HTML on a single line. HTML Tidy doesn't find any issues with the content of the output file. It comes out as a single line if I println it at the REPL too.

Is there something else needed to get formatted output?


Solution

  • The formatting of HTML output in Compojure was removed for performance and complexity reasons. To get formatted output you will probably have to write your own printer function.

    I usually output HTML as Compojure sees fit and use Firebug to view it live in my browser. Firebug will display it nicely formatted no matter if it's really all on one line or not. This works well enough most of the time. If you need to serialize this HTML in a readable form, you could keep it as Clojure vectors and sexps and serialize it that way.