Re: DM expressing until-like queries in XPath 2.0

Maarten,

Thankyou for sending this comment:

http://lists.w3.org/Archives/Public/public-qt-comments/2003Nov/0302.html

The joint XSL and XQuery working groups looked at this comment and the
subsequent correspondence at our January meeting.

There is always going to be a class of queries that can only be
expressed using recursive functions (or higher-order functions, if we
had them). Whether or not your particular example falls into this class
or not isn't directly relevant to this. We could provide additional
functionality that moves the boundary (where you have to write a
recursive function) further out, but on balance, we don't think there is
a strong case for doing this. This is essentially a value judgment, but
we are quite strongly disposed at the moment not to add new
functionality unless the case is overwhelming. Recursive functions are
available to tackle this kind of problem in both XSLT and XQuery.

I would be grateful if you would confirm that this response is
acceptable.

Regards,

Michael Kay
for the XQuery and XSL working groups
(ACTION A-TAMPA-21)

Received on Wednesday, 4 February 2004 08:48:29 UTC