dentifier">lex</span><span class="special">::</span><span class="identifier">lexer</span><span class="special">&lt;</span><span class="identifier">Lexer</span><span class="special">&gt;</span></code>
            template constructor now takes an optional parameter specifying the
            <code class="computeroutput"><span class="identifier">match_flags</span></code> to be used
            for table generation. Currently, there are the following flags available:
<pre class="programlisting"><span class="id