Subject: [xsl] How to compare two QName values in an XML Schema? From: "Costello, Roger L." <costello@xxxxxxxxx> Date: Fri, 8 Apr 2011 12:00:21 -0400 |
Hi Folks, Below is an XML Schema, containing two simpleTypes. The second one references the first. I want an XPath expression that compares the second simpleType's reference to the name of the first simpleType: /xs:schema/xs:simpleType[1]/@name eq /xs:schema/xs:simpleType[2]/xs:restriction/@base That returns False. I want it to return True. I figured the reason it's returning False is because it is comparing the string "elev:BostonAreaSurfaceElevation" against the string "EarthSurfaceElevation". Yes? I want it to do a comparison of QNames, not strings. So I type-cast the values: xs:QName(/xs:schema/xs:simpleType[1]/@name) eq xs:QName(/xs:schema/xs:simpleType[2]/xs:restriction/@base) But that gave me this error: Casting from xs:unTypedAtomic to xs:QName can never succeed. Why? What's the correct way to do the comparison? --------------------------------------------------------- <xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.elevation.org" xmlns:elev="http://www.elevation.org" elementFormDefault="qualified"> <xsd:simpleType name= "EarthSurfaceElevation"> <xsd:restriction base="xsd:integer"> <xsd:minInclusive value="-1290"/> <xsd:maxInclusive value="29035"/> </xsd:restriction> </xsd:simpleType> <xsd:simpleType name= "BostonAreaSurfaceElevation"> <xsd:restriction base="elev:EarthSurfaceElevation"> <xsd:minInclusive value="0"/> <xsd:maxInclusive value="120"/> </xsd:restriction> </xsd:simpleType> </xsd:schema> --------------------------------------------------------- /Roger
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