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Re: XPath "validation"

Subject: Re: XPath "validation"
From: Wolfgang Laun <wolfgang.laun@xxxxxxxxx>
Date: Tue, 6 Dec 2011 17:03:00 +0100
Re:  XPath "validation"
You were there in Prague, weren't you Michael?

Anyway, it should work with several caveats; I looked into it at that
time and found it useful for a restricted set of XML schema files.
Main purpose was schema differencing, though.


On 06/12/2011, Michael Kay <mike@xxxxxxxxxxxx> wrote:
> On 06/12/2011 15:38, Wolfgang Laun wrote:
>> Anthony B. Coates presented "'Full Impact' Schema differencing" at XML
>> Prague 2010. It uses a thing called XML Zebra, available from
>> http://www.xmlzebra.com, to generate all XPaths from an XML Schema.
> The number of paths that can find a non-empty result is of course
> infinite. Even if you confine yourself to paths using the child and
> attribute axes, the number of possible paths is infinite if the schema
> is recursive. That doesn't mean that you can't represent this infinite
> set in some way, or compute it in a finite time; just don't expect the
> answer to be a simple list of permitted path expressions.
> Michael Kay
> Saxonica

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