I sort
of want to say
<xsl:number count="*[contains(@class, ' figure ')]
except *[contains(@class, ' flowchart ')]"/>
only set difference doesn't work in xsl:number/@count, even
in XSLT 2.0.
Besides, the base processing can't necessarily know about
flowcharts, circuitdiagrams, familytrees, or however many
specializations of "figure"
I've included. Each specialization has to have its own
processing XSLT.
I think I would use
<xsl:number count="*[my:is-class-figure(.)]"/>
where the function my:class-figure is defined in the base stylesheet as
<xsl:function name="my:is-class-figure">
<xsl:param name="node" as="element()"/>
<xsl:sequence select="contains($node/@class, ' figure ')"/>
</xsl:function>
and is redefined in your customization layer as:
<xsl:function name="my:is-class-figure">
<xsl:param name="node" as="element()"/>
<xsl:sequence select="contains($node/@class, ' figure ') and
not(contains(@class, ' flowchart '))"/>
</xsl:function>
Michael Kay
http://www.saxonica.com/
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