Still new to XML/XSLT, I am trying to get my arms around the
numbering methods in XML. Believe I have succeeded in
auto-numbering figures, equations, tables, etc. Now I need to
refer to an element by number. From textbooks and online
reading I have the following:
An element Equation of type EquationType:
<xs:complexType name="EquationType">
<xs:element name="Expression" type="xs:string"/>
<xs:element name="Target" type="xs:ID" use="required" />
</xs:complexType>
An element xRef of type xRefType:
<xs:complexType name="xRefType">
<xs:sequence>
<xs:element name="RefElemType" type="xs:string"/>
<xs:element name="RefElemID" type="xs:IDREF"/>
</xs:sequence>
</xs:complexType>
The Transform template of xRef is
<xsl:template match="etd:xRef">
<xsl:apply-templates select="number[(_at_)Target='etd:RefElemID']" />
</xsl:template>
Instead of the number of the equation having the indicated
target value, the result is a blank. There are no error messages.
You have tried to select a child element called "number" and there isn't
one. If there were one, you would be selecting it only if its @Target
attribute were equal to the string "etd:RefElemId". But Target is not an
attribute, it is an element, and the string is not a string, it is an
element name - so you seem pretty confused.
I think you want
<xsl:key name="k" match="Equation" use="Target"/>
then
<xsl:apply-template select="key('k', etd:RefElemId)"/>
though I'm guessing wildly about the namespace.
Michael Kay
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list