Oxygen XML Forum

Posted: **Fri Feb 29, 2008 8:31 pm**

I have an element structure like the one below.

When processing "F" elements, I'd like to count which "C" element I'm in when processing each "F".

I think this would be like counting previous "C" siblings when processing "F", but I can't figure out the XPath pattern to give me such a count, or something similar, when in the XSL processing for each "F" element.

I can live with 0-based or 1-based counting, as long as values are sequential.

Thanks for suggestions.

-- Mike

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<C>

    <D>

        <E Attr1="..." />

        <F Attr2="..." />  <!--"C" level would be 0 (or 1)  -->

    </D>

</C>



<C>

    <D>

        <E Attr1="..." />

        <F Attr2="..." />  <!--"C" level would be 1 (or 2)  -->

    </D>

</C>



<C>

    <D>

        <E Attr1="..." />

        <F Attr2="..." />  <!--"C" level would be 2 (or 3)  -->

    </D>

</C>

Posted: **Mon Mar 03, 2008 5:09 pm**

?maybe
<xsl:value-of select="count(preceding::C)"/>

Posted: **Mon Mar 03, 2008 6:02 pm**

I just get '0' for each "F" element processed.

count(preceding-sibling::C) did no better.

Thanks, Mike

Posted: **Mon Mar 03, 2008 6:51 pm**

Note that the suggestion was to use preceding::C and not precedinf-sibling::C.

On a document like

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<?xml version="1.0" encoding="UTF-8"?>

<test>

  <C>

    <D>

      <E Attr1="..."></E>

      <F Attr2="..."></F>

      <!--"C" level would be 0 (or 1)  -->

    </D>

  </C>



  <C>

    <D>

      <E Attr1="..."></E>

      <F Attr2="..."></F>

      <!--"C" level would be 1 (or 2)  -->

    </D>

  </C>



  <C>

    <D>

      <E Attr1="..."></E>

      <F Attr2="..."></F>

      <!--"C" level would be 2 (or 3)  -->

    </D>

  </C>

</test>

the following stylesheet

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<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

  <xsl:output indent="yes"/> 

  <xsl:template match="/">

    <result><xsl:apply-templates/></result>

  </xsl:template>

  <xsl:template match="F">

    <inF>Processing F having count of preceding Cs: <xsl:value-of select="count(preceding::C)"/></inF>

  </xsl:template>

  <xsl:template match="text()"/>

</xsl:stylesheet>

will produce

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<?xml version="1.0" encoding="utf-8"?>

<result>

   <inF>Processing F having count of preceding Cs: 0</inF>

   <inF>Processing F having count of preceding Cs: 1</inF>

   <inF>Processing F having count of preceding Cs: 2</inF>

</result>

Regards,
George

Posted: **Mon Mar 03, 2008 7:12 pm**

Dear jkmyoung and George,

In trying to simplify my example, I simplified too much. Please note that I did try preceding as well as preceding-sibling in my first try.

My error: Namespaces!

I needed count(preceding::mynamespace:C)

Sorry about the confusion, and many thanks for your patience as you steered me to the solution.

Thanks again, and apologies,
Mike

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