[xsl] Not a nested for loop.

[DPawson at rnib dot org dot uk]

I have a main document,
form is:

         <r id="d0e170156">
              <bibno>079732</bibno>
              <cat-num>10400</cat-num>
              <TBcategory>General fiction</TBcategory>
              <id>079732*RNIB*</id>
              <num-cassettes>1</num-cassettes>
              <play-time>08:47</play-time>
              <rdr-gender>F</rdr-gender>
              <rearch-date/>
         </r>

And an external file, form is:

 <bk>
      <n>2</n>
      <t>THE CAR MAKERS</t>
   </bk>
   <bk>
      <n>3</n>
      <t>WYATT'S HURRICANE</t>
   </bk>
   <bk>
      <n>4</n>
      <t>THE RELUCTANT WIDOW</t>
   </bk>
   <bk>


I need to loop through each of the main input document records (r elements)
 and if r/cat-num is any one of the values of the external file, /bk/n
then I need to copy the r element and contents through to the output.

Can xslt2.0 help with this form of filtering?

TIA, Regards DaveP



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