Extending basic search

Hi,

A DASL server must implement the basic search. So defining an own grammar
could extend the basic search grammar. Could the following query showing the
length of certain Frank Zappa songs be correct?

<D:searchrequest xmlns:D="DAV" xmlns:F="http://www.xyz.com/mySearch">
	<F:mySearch>
		<D:select>
			<D:prop>
				<D:getcontentlength/>
			</D:prop>
			<D:from>
				<D:scope>
					<D:href>/myCDs/</D:href>
				</D:scope>
			</D:from>
			<D:where>
				<F:query>All songs of Frank Zappa that do
not contain political incorrect statements</F:query>
			</D:where>
		</D:select>
	</F:mySearch>
</D:searchrequest>

Best regards,

Martin Wallmer
Software AG