lassConstants using the passed in
 Reader for instantiation.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/tools/ant/filters/ChainableReader.html#chain-java.io.Reader-">chain</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../org/apache/tools/ant/filters/ChainableReader.html" title="interface in org.apache.tools.ant.filters">ChainableReader</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>rd