entifier">match_flags</span><span class="special">::</span><span class="identifier">match_default</span><span class="special">,</span>          <span class="comment">// no flags</span>
<span class="identifier">match_flags</span><span class="special">::</span><span class="identifier">match_not_dot_newline</span><span class="special">,</span>  <span class="comment">// the regex '.' doesn't match newlines</span>
<span class="identifier">match_flags</span><span class="special">::</span><span class="identifier">