Hello,
Consider the following XML:
<?xml version="1.0"?>
<root>
<relevant>
<element relevant-attribute="this attribute exists only on elements under
relevant"/>
</relevant>
<irrelevant>
<element/>
</irrelevant>
</root>
And the following Schematron:
<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://purl.oclc.org/dsdl/schematron"; queryBinding="xslt3"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:map="http://www.w3.org/2005/xpath-functions/map";>
<ns prefix="map" uri="http://www.w3.org/2005/xpath-functions/map"/>
<let name="some-map" value="map {}"/>
<pattern>
<rule context="/*/relevant/element[map:contains($some-map,
@relevant-attribute)]">
<assert test="true()">Impossible</assert>
</rule>
</pattern>
</schema>
When I validate the XML with the Schematron, Oxygen prints a warning that an
empty sequence is not allowed as the second argument to map:contains, which
I've determined is because it is testing the "element" elements under
"irrelevant". I know this because if I add a second such element, the error
prints twice. If I have 9, the error prints 9 times. But why is it testing that
element? I deliberately used xpath that navigates via the parent because I want
to include only elements under that parent, but it seems that it's looking at
all elements, anywhere in the document, named 'element'. Is this expected?
I can silence the warning if I explicitly check for the presence of the
attribute:
<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://purl.oclc.org/dsdl/schematron"; queryBinding="xslt3"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:map="http://www.w3.org/2005/xpath-functions/map";>
<ns prefix="map" uri="http://www.w3.org/2005/xpath-functions/map"/>
<let name="some-map" value="map {}"/>
<pattern>
<rule context="/*/relevant/element[@relevant-attribute and
map:contains($some-map, @relevant-attribute)]">
<assert test="true()">Impossible</assert>
</rule>
</pattern>
</schema>
But not if I precede the broken rule with a rule that should equivalently
prevent the broken rule from firing on those elements:
<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://purl.oclc.org/dsdl/schematron"; queryBinding="xslt3"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:map="http://www.w3.org/2005/xpath-functions/map";>
<ns prefix="map" uri="http://www.w3.org/2005/xpath-functions/map"/>
<let name="some-map" value="map {}"/>
<pattern>
<rule context="/*/relevant/element[not(@relevant-attribute)]">
<assert test="true()">Impossible</assert>
</rule>
<rule context="/*/relevant/element[map:contains($some-map,
@relevant-attribute)]">
<assert test="true()">Impossible</assert>
</rule>
</pattern>
</schema>
Thanks,
--
Danny MacMillan
Sent with [Proton Mail](https://proton.me/) secure email._______________________________________________
oXygen-user mailing list
oXygen-user@oxygenxml.com
https://www.oxygenxml.com/mailman/listinfo/oxygen-user
