 class="char">','</span>
            <span class="special">&gt;&gt;</span> <span class="identifier">file_identifier</span><span class="special">)</span></code> as long as the line does not exceed
            80 characters.
          </li>
<li class="listitem">
            If a sequence fits on one line, put spaces inside the parentheses to
            clearly separate them from the rules.
          </li>
</ul></div>
<pre class="programlisting"><span class="identifier">program_heading</span>
    <span class=