Re: [xsl] RE: loop elements based on attribute

[Martin Honnen <Martin.Honnen@xxxxxx>]

Kjellaug Johansen wrote:
> Now, I've got another problem. I want a list of Pkt-elements to be
> wrapped inside a List-element.
>
> I want this xml:
>
> <test>
> <A>test</A>
>  <Pkt type="pkt">Text</Pkt>
>  <Pkt type="uavs">Text 1</Pkt>
>  <Pkt type="pkt">More text</Pkt>
>  <Pkt type="uavs">More text 1</Pkt>
>  <Pkt type="uavs">More text 2</Pkt>
>  <B>test</B>
>  <A>test</A>
>  <Pkt type="pkt">Lot of text</Pkt>
>  <Pkt type="pkt">Tons of text</Pkt>
>  <Pkt type="uavs">Tons of text 1</Pkt>
>  </test>
>
> To look like this:
>
> <test>
>  	<A>test</A>
>  	<List>
> 		<Pkt type="pkt">Text</Pkt>
>  		<Pkt type="uavs">Text 1</Pkt>
>  		<Pkt type="pkt">More text</Pkt>
>  		<Pkt type="uavs">More text 1</Pkt>
>  		<Pkt type="uavs">More text 2</Pkt>
>  	</List>
>  	<B>test</B>
>  	<A>test</A>
>  	<List>
>  		<Pkt type="pkt">Lot of text</Pkt>
>  		<Pkt type="pkt">Tons of text</Pkt>
>  		<Pkt type="uavs">Tons of text 1</Pkt>
> 	</List>
>  </test>
>
> Anybody who can help me?

Assuming you use XSLT 2.0 you can use xsl:for-each-group group-adjacent 
as follows:

<xsl:stylesheet
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
  version="2.0">

  <xsl:output method="xml" indent="yes"/>
  <xsl:strip-space elements="*"/>

  <xsl:template match="/test">
    <xsl:copy>
      <xsl:for-each-group select="*" group-adjacent="boolean(self::Pkt)">
        <xsl:choose>
          <xsl:when test="current-grouping-key()">
            <List>
              <xsl:copy-of select="current-group()"/>
            </List>
          </xsl:when>
          <xsl:otherwise>
            <xsl:copy-of select="current-group()"/>
          </xsl:otherwise>
        </xsl:choose>
      </xsl:for-each-group>
    </xsl:copy>
  </xsl:template>

</xsl:stylesheet>
--

	Martin Honnen
	http://JavaScript.FAQTs.com/