>when</strong></font> 
   (<strong id='bold34726'
>lambda</strong> (x e)
      (<strong id='bold34727'
>match-case</strong> x
         ((?- ?test . ?exps)
          (e `(<strong id='bold34728'
>if</strong> ,test (<strong id='bold34729'
>begin</strong> ,&#x40;exps)) e))
         (else
           (<font color="red"><strong id='bold34730'
>error</strong></font> <font color="red">&quot;when&quot;</font> <font color="red">&quot;illegal form&quot;</font> x)))))<br/><br/>(when (&gt; a 0) (print a) a)
   ==&gt; (<s