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Gregor's EXC-C14N interop samples (WAS:RE: Moving exc-c14n forward: your response is needed!)

From: Gregor Karlinger <gregor.karlinger@iaik.at>
Date: Thu, 18 Apr 2002 13:03:32 +0200
To: <merlin@baltimore.ie>, <reagle@w3.org>
Cc: "'TAMURA Kent'" <kent@trl.ibm.co.jp>, "'Ari Kermaier'" <arik@phaos.com>, "'Aleksey Sanin'" <aleksey@aleksey.com>, <w3c-ietf-xmldsig@w3.org>
Message-ID: <016f01c1e6c8$b5919830$68981b81@iaik.at>

> 3. I've tried Gregor's examples and, with one exception 
> (example 4, regular c14n, GrandChild, xml:fool should not be 
> there?), I think everything works.

I guess that you mean example 1 since this is the only one
bearing an xml:fool attribute.

According to the second paragraph of [1], section 2.4 I think
the appearance of xml:fool as attribute of element GrandChild
is correct:  

  The processing of an element node E MUST be modified
  slightly when an XPath node-set is given as input and the
  element's parent is omitted from the node-set. The method
  for processing the attribute axis of an element E in the
  node-set is enhanced. All element nodes along E's ancestor
  axis are examined for nearest occurrences of attributes in
  the xml namespace, such as xml:lang and xml:space (whether
  or not they are in the node-set).

For "GrandChild", this results in the list 
  - xml:foo (barbarossa)
  - xml:lang (ge)
  - xml:fool (barbar)
  - xml:space (default)

  From this list of
  attributes, remove any that are in E's attribute axis
  (whether or not they are in the node-set).

After this step, the following list remains:
  - xml:foo (barbarossa)
  - xml:lang (ge)
  - xml:fool (barbar)

  lexicographically merge this attribute list with the nodes
  of E's attribute axis that are in the node-set. 

This step results in
  - xml:foo (barbarossa)
  - xml:lang (ge)
  - xml:fool (barbar)
  - xml:space (preserve)

  The result
  of visiting the attribute axis is computed by processing the
  attribute nodes in this merged attribute list.

Am I missing something here?


[1] http://www.w3.org/TR/2001/REC-xml-c14n-20010315.html 
Received on Thursday, 18 April 2002 07:16:51 UTC

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