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   RE: [xml-dev] Hostility to "binary XML" (was Re: [xml-dev] XML 2004 webl

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  • To: "Liam Quin" <liam@w3.org>,"Derek Denny-Brown" <derekdb@microsoft.com>
  • Subject: RE: [xml-dev] Hostility to "binary XML" (was Re: [xml-dev] XML 2004 weblog items?)
  • From: "Dare Obasanjo" <dareo@microsoft.com>
  • Date: Mon, 22 Nov 2004 13:52:31 -0800
  • Cc: <xml-dev@lists.xml.org>
  • Thread-index: AcTQ2xQFo8EIGAaKRAqtsLO4r9nGNQAAeTcA
  • Thread-topic: [xml-dev] Hostility to "binary XML" (was Re: [xml-dev] XML 2004 weblog items?)

> -----Original Message-----
> From: Liam Quin [mailto:liam@w3.org] 
> Sent: Monday, November 22, 2004 1:34 PM
> To: Derek Denny-Brown
> Cc: xml-dev@lists.xml.org
> Subject: Re: [xml-dev] Hostility to "binary XML" (was Re: 
> [xml-dev] XML 2004 weblog items?)
> On Mon, Nov 22, 2004 at 01:09:06PM -0800, Derek Denny-Brown wrote:
> > Most of the CPU cost of parsing is related to the abstract model of 
> > XML, not the text parsing: Duplicate attribute detection, character 
> > checking, namespace resolution/checking. Every binary-xml 
> > implementation I have researched which improves CPU 
> utilization does 
> > so by skipping checks such as these. At that point you are 
> no longer 
> > talking about XML.
> One can do validation in the writer and then plausibly skip 
> the sort of checks you mention in a reader, and still be 
> talking about XML, even with today's textual interchange formats.

Interesting, so if I'm writing an XML Web Service end point I should
trust third parties to do the well-formedness and validity checking as a
"performance enhancement"? Even ignoring the security implications of
this it still seems like a horrible idea. 

It is impossible to make anything foolproof because fools are ingenious.

This posting is provided "AS IS" with no warranties, and confers no


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