align="left"/><tbody><tr><td><span class="term"><i><tt>value</tt></i>:</span></td><td>a value</td></tr><tr><td><span class="term"><i><tt>Returns</tt></i>:</span></td><td>the new string or NULL if no change was required.</td></tr></tbody></table></div></div>
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        <div class="refsect2" lang="en"><h3><a name="xmlSchemaCompareValues"/>xmlSchemaCompareValues ()</h3><pre class="programlisting">int	xmlSchemaCompareValues		(<a href="libxml2-schemasInternals.html#xmlSchemaValPtr">xmlSchemaValPtr</a>