title: Format a 'numeric' string as a number
body: <p>I would like to format a 'numeric' string as a 'string number' in Clojure. This is the format mask:</p>
  
  <blockquote>
    <p>"#,###,###,##0.00"</p>
  </blockquote>
  
  <p>Given the string "9999.99" I would expect to receive back "9,999.99". </p>
  
  <p>How would I do this in Clojure without resorting to writing a converter function i.e. using <code>format</code> or something similar?</p>