[xsl] for-each-group, group-starting-with - group based on attribute value of first child... possible?

[Matt Poff <matt.poff@xxxxxxxxxxxxxxx>]

Hi,

I'm a relative newbie with XSLT but have got about 90% of a conversion 
task taking  XHTML describing table information to relational XML ready 
for a database. My problem is this, each row of the HTML table has 
varying number of columns, and I want to wrap certain rows of data in a 
new output element. Basically I'd like to cycle through table <tr> tags, 
check if the first child <td> tag of each row has a rowspan value of 2 
or 5, and if so wrap the translated output from that row, and every row 
following it, with my new tags *until* I encounter a row with that 
row-span value again.

I've tried something like this (which XSLT doesn't seem to like):

   <xsl:template  match="table">
           <xsl:for-each-group  select="tr"
               group-starting-with="td/@colspan=5">
                   <xsl:value-of select="current-group()" />
           </xsl:for-each-group>
   </xsl:template>


Is it possible to create groups  using a path to a nested node and an 
explicit evaluation? Also once I have these groups, what basic structure 
should I use to parse the contents of each group. I've already written 
code which successfully translates the  values of  <td> tags in the 
<table> but to date I haven't need to use grouping.

Any help greatly appreciated. I'm using XSLT 2.0 with the Saxon 8.1B 
processor.

Cheers,
Matt

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