title: What programming language is this?
body: <p>We're trying to script a CAD program, and this is the example for controlling the date in our design slugs, but I don't even know what language it is to know what to do with it.</p>
  
  <pre><code>! LIBEDATE
  
  def &amp;d$ &amp;ret$
  
  set &amp;d$ = rstr(`/`,` `,#d$);
  set &amp;ret$ = word(&amp;d$,2),`/`,word(&amp;d$,1),`/`,subs(word(&amp;d$,3), -2, 2)
  </code></pre>