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Re: [XPath Filter 2.0] Problem with Transform model

From: Joseph Reagle <reagle@w3.org>
Date: Wed, 29 May 2002 11:27:31 -0400
To: "Gregor Karlinger" <gregor.karlinger@iaik.at>, "XMLSigWG" <w3c-ietf-xmldsig@w3.org>
Message-Id: <20020529152731.977B1859F5@aeon.w3.org>

On Sunday 26 May 2002 08:31 am, Gregor Karlinger wrote:
> A possible solution for this problem could be to explicitely
> forbid an emtpy input for the XPath Filter 2.0 transform. Any
> thought?

How would one forbid this? We can't stop a user from specifying an XPath 
expression that misses the mark, right? If we said throw an error, that 
would stop the processing of the signature -- maybe there are other useful 
XPath transforms. We could add a processing step that says if the input 
node-set is empty the transform is done.


Joseph Reagle Jr.                 http://www.w3.org/People/Reagle/
W3C Policy Analyst                mailto:reagle@w3.org
IETF/W3C XML-Signature Co-Chair   http://www.w3.org/Signature/
W3C XML Encryption Chair          http://www.w3.org/Encryption/2001/
Received on Wednesday, 29 May 2002 11:28:39 UTC

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