Subject: [xsl] XPath "validation" From: Norm Birkett <Norm.Birkett@xxxxxxxxx> Date: Tue, 6 Dec 2011 15:23:02 +0000 |
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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