Markdown and syntax highlighting

prism-showdown.js

/*
  jquery.min.js, showdown.min.js, prism.js and prism.css must be loaded
  
  The container that will hold markdown should be have the class
  'content-markdown'.
  
  Place code in between:
    1. $$name_of_language$$ code_goes_here $$end$$ (inline-code)
    2. $name_of_language$ code_goes_here $end$ (block-code)
  E.g. 
  <section class='content-markdown'>
    $python$
    import firebasin
    my_firebase = firebasin.Firebase("https://my_firebase_name.firebaseio.com")
    $end$
  </section>
*/

$(document).ready(function(){
    var converter = new Showdown.converter();

    $(".content-markdown").each(function () {
        var markdown = $(this).text().trim(),
            html;

      markdown = markdown.replace(/(\s+)\$\$end\$\$(\s+)/g, "$1</code>$2");
      markdown = markdown.replace(/(\s+)\$\$([^\$]+)\$\$(\n?)(\s+)/g, "$1<code class='language-$2'>$3");

      markdown = markdown.replace(/(\s+)\$end\$(\s+)/g, "$1</code></pre>$2");
      markdown = markdown.replace(/(\s+)\$([^\$]+)\$(\n?)(\s+)/g, "$1<pre><code class='language-$2'>$3");

      html = converter.makeHtml(markdown);

      $(this).empty().append(html);
    });

    Prism.highlightAll();
  });