RE: [xsl] Grouping problem persists

["Michael Kay" <mhk@xxxxxxxxx>]

> 
> I was unable to get following grouping to work:

So what technique are you using?

There are two main ways of doing positional grouping. One is to use
xsl:apply-templates recursively over the following-sibling axis: think
of the logical children of a node with @picture='MODULE' as being the
following sibling nodes that have this as their most recent such node,
i.e.

<xsl:template match="row[@picture='MODULE']">
<module>
  <xsl:variable name="this" select="generate-id($this)"/>
  <xsl:apply-templates select="following-sibling::row[
       generate-id(preceding-sibling::row[@picture='MODULE'][1]) =
$this]"/>
</module>
</xsl:template>

The other way is to treat it as a value-based grouping problem, using
Muenchian grouping with keys, where the grouping key value is 

generate-id(preceding-sibling::row[@picture='MODULE'][1])

Michael Kay

PS: Saxon 6.2.2 is getting rather long in the tooth.

> 
> Source (from Excel/VB):
> <list>
> <row num=" 4 ">
> <entry name="sp_code"></entry>
> <entry name="sn_from"></entry>
> <entry name="sn_to">-</entry>
> <entry name="picture">MODULE:</entry>
> <entry name="qty"></entry>
> </row>
> <row num=" 5 ">
> <entry name="sp_code">2000402</entry>
> <entry name="sn_from"></entry>
> <entry name="sn_to">-</entry>
> <entry name="picture">01_001_e.cgm</entry>
> <entry name="qty"></entry>
> </row>
> <row num=" 6 ">
> <entry name="ID">5</entry>
> <entry name="sp_code">5210558</entry>
> <entry name="sn_from"></entry>
> <entry name="sn_to">-</entry>
> <entry name="picture">01_001_e.cgm</entry>
> <entry name="qty">2</entry>
> </row>
> ....
> <row num=" 35 ">
> <entry name="sp_code"></entry>
> <entry name="sn_from"></entry>
> <entry name="sn_to">-</entry>
> <entry name="picture">MODULE:</entry>
> <entry name="qty"></entry>
> </row>
> ...
> </list>
> 
> What I need is structured output like:
> 
> <list>
> <module>
> <row num=" 4 ">
> <entry name="sp_code"></entry>
> <entry name="sn_from"></entry>
> <entry name="sn_to">-</entry>
> <entry name="picture">MODULE:</entry>
> <entry name="qty"></entry>
> </row>
> <row num=" 5 ">
> <entry name="sp_code">2000402</entry>
> <entry name="sn_from"></entry>
> <entry name="sn_to">-</entry>
> <entry name="picture">01_001_e.cgm</entry>
> <entry name="qty"></entry>
> </row>
> <row num=" 6 ">
> <entry name="ID">5</entry>
> <entry name="sp_code">5210558</entry>
> <entry name="sn_from"></entry>
> <entry name="sn_to">-</entry>
> <entry name="picture">01_001_e.cgm</entry>
> <entry name="qty">2</entry>
> </row>
> ...
> </module>
> <module>
> <row num=" 35 ">
> <entry name="sp_code"></entry>
> <entry name="sn_from"></entry>
> <entry name="sn_to">-</entry>
> <entry name="picture">MODULE:</entry>
> <entry name="qty"></entry>
> </row>
> ...
> </module>
> </list>
> 
> So, every row-node containing entry of type "picture" with 
> text content of "MODULE:" would start a new "module" in output
> 
> I'm using Saxon 6.2.2
> 
> Thanks in advance, Martti
> 
> 
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
> 


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