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Re: [XPath] 3.2.1 Steps: fn:get-namespace-uri-for-prefix

From: David Carlisle <davidc@nag.co.uk>
Date: Mon, 26 Jul 2004 12:48:50 +0100
Message-Id: <200407261148.MAA03162@penguin.nag.co.uk>
To: mhk@mhk.me.uk
Cc: public-qt-comments@w3.org


  Although solutions along the lines you suggest have been proposed, the WGs'
  current preference is for an alternative approach, which is to keep
  namespace context information for atomic values of type QName and NOTATION.
  This would solve the problem not only for free-standing attribute nodes, but
  also for free-standing QName values.

but not (as you say later) for the most common case of qnames in
attribute values, xpath expressions and other cases that are not
explictly typed as qnames.

  One disadvantage of the proposal you made, where namespace context
  information is attached to attribute nodes, is that a lot of quite
  unnecessary namespace information would be carried around "just in case".
  Logically, it would also be needed for free-standing text nodes.

Yes, I was just hoping that I'd be able to trust your abilities to
optimise away this cost in the implementation. However that isn't always
possible I guess (which is presumably why namespace nodes have become
unpopular, that you can't always avoid really building the things).

Anyway thanks for the response.

I'd suggest that you _don't_ need to track this part of my message in
your official issue tracker, that is, consider this message thread
closed if the editorial fix to the function names is made. I'm happy
that you note that the issue of qnames in content is under active
consideration, and am happy to let this part of my message be dropped.


David




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Received on Monday, 26 July 2004 07:50:01 UTC

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