As you have discovered, your stylesheet is not a well-formed XML so it
cannot work through the XML parser.

This looks to me a positional grouping problem, which can be solved
efficiently in XSLT 1.0 with the "sibling recursion" technique.

Below is the stylesheet for the same.

<?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

   <xsl:output method="xml" indent="yes" />

   <xsl:template match="/root">
     <root>
       <xsl:for-each select="e[@t = 'a']">
         <e>
           <xsl:apply-templates select="following-sibling::*[1]" />
         </e>
       </xsl:for-each>
     </root>
   </xsl:template>

   <xsl:template match="*">
     <xsl:if test="not(self::e[@t = 'b'])">
       <xsl:copy-of select="." />
       <xsl:apply-templates select="following-sibling::*[1]" />
     </xsl:if>
   </xsl:template>

</xsl:stylesheet>


On 6/25/08, David Frey <dpfrey@xxxxxxx> wrote:
> I have a simple XSLT problem for the gurus.
>
>
> This is my input document:
> <root>
>  <e t="a"/>
>  <f/>
>  <f/>
>  <e t="b"/>
> </root>
>
>
> This is the output document I want to produce:
> <root>
>  <e>
>    <f/>
>    <f/>
>  </e>
> </root>


-- 
Regards,
Mukul Gandhi