class="refsect2" lang="en"><h3><a name="LIBXML_REGEXP_ENABLED">Macro </a>LIBXML_REGEXP_ENABLED</h3><pre class="programlisting">#define <a href="#LIBXML_REGEXP_ENABLED">LIBXML_REGEXP_ENABLED</a>;
</pre><p>Whether the regular expressions interfaces are compiled in</p>
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        <div class="refsect2" lang="en"><h3><a name="LIBXML_SAX1_ENABLED">Macro </a>LIBXML_SAX1_ENABLED</h3><pre class="programlisting">#define <a href="#LIBXML_SAX1_ENABLED">LIBXML_SAX1_ENABLED</a>;
</pre><p>Whether the old