Re: [xsl] Add element at the end of a variable group of elements

["G. Ken Holman g.ken.holman@xxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

I would approach this as a grouping issue and not a matching issue.

I hope this helps.

. . . . . Ken

~/t/ftemp $ cat charles.xml
<?xml version="1.0" encoding="UTF-8"?>
<root>
   <foo/>
   <bar/>
   <mercury/>
   <venus/>
   <earth earth-type="round"/>
   <earth earth-type="flat"/>
   <mars/>
</root>
~/t/ftemp $ xslt2 charles.xml charles.xsl
<?xml version="1.0" encoding="UTF-8"?>
<root>
   <foo/>
   <bar/>
   <mercury/>
   <venus/>
   <moon>Now with more craters!</moon>
   <earth earth-type="round"/>
   <earth earth-type="flat"/>
   <mars/>
</root>
~/t/ftemp $ cat charles.xsl
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
  xmlns:xsd="http://www.w3.org/2001/XMLSchema";
  exclude-result-prefixes="xsd"
  version="2.0">

<xsl:output indent="yes"/>

<xsl:template match="root">
  <xsl:copy>
    <xsl:for-each-group select="*"
                        group-adjacent="self::earth or self::mars">
      <xsl:if test="xsd:boolean(current-grouping-key())">
        <moon>Now with more craters!</moon>
      </xsl:if>
      <xsl:copy-of select="current-group()"/>
    </xsl:for-each-group>
  </xsl:copy>
</xsl:template>

</xsl:stylesheet>
~/t/ftemp $ cat charles2.xml
<?xml version="1.0" encoding="UTF-8"?>
<root>
   <foo/>
   <bar/>
   <mercury/>
   <venus/>
   <mars/>
</root>
~/t/ftemp $ xslt2 charles2.xml charles.xsl
<?xml version="1.0" encoding="UTF-8"?>
<root>
   <foo/>
   <bar/>
   <mercury/>
   <venus/>
   <moon>Now with more craters!</moon>
   <mars/>
</root>
~/t/ftemp $


At 2021-03-03 00:01 +0000, Charles O'Connor coconnor@xxxxxxxxxxxx wrote:
> Hi all,
>
> Using XSLT 2.0, I'd like to add an element at the end of a group of 
> elements that may vary whether they exist.
>
> This seems like a classic case that people have to deal with all the 
> time, but I've searched without luck, and I'm on maybe lesson 4 of 
> ??? of the online XSLT course I've been taking for the past decade.
>
> So, given the XML
>
> <root>
>    <foo/>
>    <bar/>
>    <mercury/>
>    <venus/>
>    <earth earth-type="round"/>
>    <earth earth-type="flat"/>
>    <mars/>
> </root>
>
> I want to add <moon>Now with more craters!</moon> after the <foo>, 
> <bar>, <mercury>, <venus> group of elements and before the <earth>, 
> <mars> group of elements, BUT I only know for sure that <foo> and 
> <mars> will exist in the input XML. All the others are optional.
>
> In the Oxygen XPath test window, 
> "root/(foo|bar|mercury|venus)[last()]" got me where I wanted to be, 
> but alas, parentheses are not allowed in the @match for the template.
>
> Thanks!
> Charles
>
> Charles O'Connor [he/him] l Business Analyst
> Aries Systems Corporation l www.ariessys.com
> 50 High Street, Suite 21 l North Andover, MA l 01845 l USA
> Direct: 802-585-5655 Main: 978-975-7570 l Help Desk: 978-291-1966 | 
> Fax: 978-975-3811
>
>
>
>
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