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Re: [xml-dev] Two interesting comments from Michael Kay

Chris Maloney <voldrani@gmail.com> wrote on 12/15/2011 03:37:39 PM:

> Roger,
> > The wonder is that despite all its faults ...
> It's not clear whether you're talking about Saxon or XSD!

On that second quote he's talking about XSD.

> On Thu, Dec 15, 2011 at 2:48 PM, Costello, Roger L. <costello@mitre.org
> > wrote:

> Hi Folks,
> 1. On November 4, 2011 Michael Kay wrote on the SAXON mailing list
> the following. It gives an intriguing hint about how the SAXON XSD
> validator is implemented:
> Saxon's validation of schema documents is in most cases driven by a
> finite state machine that is automatically generated from the content
> model in the schema for schema documents. So unless there are issues
> like the spec changing since the FSM was last generated, I'm fairly
> confident that Saxon gets this kind of thing right.
> http://sourceforge.net/mailarchive/message.php?msg_id=28329712
> 2. Today Michael made an interesting statement regarding the XML
> Schema specification:
> XSD is probably the most difficult spec I have read since Algol 68. The
> difference is that the more you read the Algol 68 spec, the more it
> makes sense; whereas the more you read the XSD spec, the more holes you
> find.
> The wonder is that despite all its faults, a large number of people are
> getting a large amount of value from it.
> http://lists.xml.org/archives/xml-dev/201112/msg00069.html
> /Roger
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Michael Glavassevich
XML Technologies and WAS Development
IBM Toronto Lab
E-mail: mrglavas@ca.ibm.com

E-mail: mrglavas@apache.org

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