Question

Given the input XML file:

        <acctInfo>
                <wfInfo>
                    <aaa>1</aaa>
                    <bbb>1</bbb>
                    <ccc>1</ccc>
                    <ddd>1</ddd>
                    <eee>1</eee>
                </wfInfo>
            <acctInfo>

And the lookup file:

<fields>
    <field>
       <name>aaa</name>
       <Updatekey>aaakey</Updatekey>
    </field>

    <field>
       <name>bbb</name>
       <Updatekey>bbbkey</Updatekey>
    </field>

    <field>
       <name>ccc</name>
       <Updatekey>ccckey</Updatekey>
    </field>
</fields>

I would like to use XSLT/XPATH to count all the nodes in the input xml file that have corresponding key in the lookup table. in the above example, count should give 3. Thanks.

Answer 1

This transformation:

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

 <xsl:template match="/">
     <xsl:value-of select=
     "count(/*/*/*
             [name()
             =
              document('file:///c:/temp/delete/lookup.xml')/*/*/name]
            )"/>
 </xsl:template>
</xsl:stylesheet>

when applied on the provided XML document (corrected to be made well-formed):

<acctInfo>
    <wfInfo>
        <aaa>1</aaa>
        <bbb>1</bbb>
        <ccc>1</ccc>
        <ddd>1</ddd>
        <eee>1</eee>
    </wfInfo>
</acctInfo>

produces the wanted, correct result:

3