 generator <code class="computeroutput"><span class="identifier">a</span></code>
                      does not fail (except if the underlying output stream reports
                      an error). This variant of <code class="computeroutput"><span class="identifier">repeat</span><span class="special">[]</span></code> is semantically equivalent
                      to the <a class="link" href="../operator/kleene.html" title="Kleene Star Generator (*a)">Kleene
                      Star operator <code class