Subject: Re: [xsl] XPath "validation" From: Wolfgang Laun <wolfgang.laun@xxxxxxxxx> Date: Tue, 6 Dec 2011 16:38:39 +0100 |
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. -W On 06/12/2011, Norm Birkett <Norm.Birkett@xxxxxxxxx> wrote: > Given > > (1) an XML schema (expressed in any schema language, though my strong > preference would be RNG/C) > > and > > (2) an XPath path expression (whether XPath 1.0 or 2.0), > > it should be possible to compute the "possibility" of the path expression's > finding anything in an XML document that is valid under the schema, > understood as one of the three following values: > > * Guaranteed > * Possible > * Impossible > > Question: Does there exist any software to compute "possibility" in this > way? Or anything like it? Or anything like it for any other restricted set > of XPath expressions? > > Related question: Does there exist software that infers schema information > from XPath expressions? > > "Software" here doesn't have to be commercial, or much more than just some > researcher's script collection. :) > > Norm Birkett
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