How could I validate the double quotation in struts?

[Chen Zhi feng]

Can you help me?I meet with a large trouble.

In validation.xml,I want to describe a constant as following to prevent user
input invalide characters in file path:
        <constant>
            <constant-name>filepath</constant-name>
            <constant-value>^[^\/;,\*\?\|&lt;&gt;]*$</constant-value>
        </constant>
But I'm not able to include the double  quotation( ") in it,althought I have
used XML entity &#092; to substitute it,
and in the generated javascript string,there is two \ before the " looking
like \\" .As
you know this is invalide in jscript language syntex. How should I do?