RE: [xsl] XML Schema declarations and XPath

["Bryan Rasmussen" <bry at itnisk dot com>]

>Is it possible to assign an XPath expression to each element (attribute)
>declaration in XML Schema? This expression should serve for identification
>of respective elements in the underlying XML instance documents.

I think you might want to take a look at xsd:keyref which allows the making
of  xpath constraints against elements as a reference to an xsd:key, there's
also xsd:unique but I don't think it offers anything like what you want.

anyway as a general rule people want to use xsd:appinfo for what you seem to
be suggesting

perhaps you might also be interested in using schematron instead of XML
Schema?http://www.ascc.net/xml/resource/schematron/schematron.html

there is also some work for including schematron inside of appinfo


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