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Re: [xsl] XTTE1100: A sequence of more than one item is not allowed as the @group-adjacent attribute

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At 2013-05-13 20:29 -0700, Dimitre Novatchev wrote:

So here is the complete solution to this problem, using XSLT 3.0:

Thank you, Dimitre, for taking the time to polish up the data ... I didn't have the time.

I implemented the untested code from yesterday and found that Ihe's use of the descendent:: axis was insufficient to detect differences between two siblings. That was easily corrected in the XSLT 2.0 solution below that produces the identical serialized result as yours.

I hope this helps readers of the archive.

. . . . . . . . . Ken

T:\ftemp>type ihe.xml
<A>
   <!-- start group -->
   <B>
      <C/>
      <D/>
   </B>
   <B>
      <C/>
      <D/>
   </B>
   <!-- end group -->
   <B/>  *** singleton group
   <C/>  *** singleton group
   <!-- start group -->
   <D>
     <E/>
     <E>
       <F/>
      </E>
    </D>
    <D>
     <E/>
     <E>
       <F/>
      </E>
    </D>
    <!-- end group -->
      <!-- start group -->
   <B>
      <C/>
      <D/>
   </B>
   <B>
      <C/>
      <D/>
   </B>
   <!-- end group -->
   </A>

T:\ftemp>call xslt2 ihe.xml ihe.xsl
<group>
   <B>
      <C/>
      <D/>
   </B>
   <B>
      <C/>
      <D/>
   </B>
</group>
<group>
   <B/>
</group>
<group>
   <C/>
</group>
<group>
   <D>
     <E/>
     <E>
         <F/>
      </E>
    </D>
   <D>
     <E/>
     <E>
         <F/>
      </E>
    </D>
</group>
<group>
   <B>
      <C/>
      <D/>
   </B>
   <B>
      <C/>
      <D/>
   </B>
</group>

T:\ftemp>type ihe.xsl
<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 <xsl:output omit-xml-declaration="yes" indent="yes"/>

<xsl:template match="/*">

  <xsl:for-each-group select="*"
                      group-adjacent="string-join(descendant-or-self::*/
                       concat(local-name(),'$',count(ancestor::*)),' ')">
    <group>
      <xsl:sequence select="current-group()"/>
    </group>
  </xsl:for-each-group>
 </xsl:template>
</xsl:stylesheet>

T:\ftemp>rem Done!

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