nipulating expressions</p>
<div class="variablelist"><table border="0"><col align="left"/><tbody><tr><td><span class="term"><i><tt>maxNodes</tt></i>:</span></td><td>the maximum number of nodes</td></tr><tr><td><span class="term"><i><tt>dict</tt></i>:</span></td><td>optional dictionary to use internally</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the context or NULL in case of error</td></tr></tbody></table></div></div>
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        <div class="refsect2" lang="en">