Re: for-each-group - only get elements in each group

Hi Ken,

This works, but I made a change to generalize it a bit, because each
<Category> element may have other siblings that I need to capture. Here is
what I have, based on your code:

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:xs="http://www.w3.org/2001/XMLSchema"
    exclude-result-prefixes="xs"
    version="2.0">
    
    <xsl:output indent="yes"/>
    
    <xsl:template match="/">
        <cases>
            <xsl:for-each-group select="Cases/Story/*"
                group-by="preceding-sibling::Category[1]">
                <category>
                    <xsl:apply-templates
select="preceding-sibling::Category[1]/node()"/>
                </category>
                <xsl:copy-of select="current-group()[not(self::Category)]"/>
            </xsl:for-each-group>
        </cases>
    </xsl:template>
    
</xsl:stylesheet>

So, if I have this input:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Cases>
  <Story>
    <Category>Category1</Category>
    <Case>Case1</Case>
    <Author>Author1</Author>
    <Code>Code1</Code>
    <Category>Category1</Category>
    <Case>Case2</Case>
    <Author>Author2</Author>
    <Category>Category1</Category>
    <Case>Case3</Case>
    <Author>Author3</Author>
    <Category>Category1</Category>
    <Case>Case4</Case>
    <Author>Author4</Author>
    <Category>Category2</Category>
    <Case>Case5</Case>
    <Author>Author5</Author>
    <Category>Category2</Category>
    <Case>Case6</Case>
    <Author>Author6</Author>
    <Category>Category2</Category>
    <Case>Case7</Case>
    <Author>Author7</Author>
    <Category>Category2</Category>
    <Case>Case8</Case>
    <Author>Author8</Author>
    <Code>Code8</Code>  
  </Story>
</Cases>

I get this desired output:

<?xml version="1.0" encoding="UTF-8"?>
<cases>
   <category>Category1</category>
   <Case>Case1</Case>
   <Author>Author1</Author>
   <Code>Code1</Code>
   <Case>Case2</Case>
   <Author>Author2</Author>
   <Case>Case3</Case>
   <Author>Author3</Author>
   <Case>Case4</Case>
   <Author>Author4</Author>
   <category>Category2</category>
   <Case>Case5</Case>
   <Author>Author5</Author>
   <Case>Case6</Case>
   <Author>Author6</Author>
   <Case>Case7</Case>
   <Author>Author7</Author>
   <Case>Case8</Case>
   <Author>Author8</Author>
   <Code>Code8</Code>
</cases>

Thank you for your generous help.

Rick