Re: [xsl] Remove Duplicates from Recursive Template Calls

[David Carlisle <davidc@xxxxxxxxx>]

> I can't use the ".=preceding" because I'm using recursive template
> calls. 

Why does the test for whether this is teh first node in a document
      depend on whether the template invocation is recursive?

      <xsl:for-each select="//component/@id[.=$idRef]//..">

that's a very odd XPath. selecting the parent of every node below
$idRef.


As a side issue I note that you are combining  indent="yes" with
explictly addded indentation eg


          <xsl:value-of select="$indent"/>
          (<xsl:value-of select="@estimate"/>)

which adds the value of $indent followed by 10 spaces and a ( before the
estimate.

Results are usually more consistent across systems if you either turn
off automatic indent and do it all by hand or make sure that there
is no white space in the output and just let the system do it.
The specification for what indentation is supposed to do in the
presence of mixed content is rather under-specified.


>  I tried to find a way to set an attribute in the source document to
>  indicate that the component has been processed, but I can not find a
>  method to do that.  I tried to flag the processed nodes, but I can't
>  find a method to do that either 

The input tree is read-only in XSLT.

If you need to omit elements if they have been processed earlier rather
than if they occur earlier in teh document it's probably simpler to do
two passes.

First do your existing stylesheet into a variable, and then do a second
pass to remove duplicates.

<xsl:template match="/">
<xsl:variable name="x">
<xsl:apply-templates/>
</xsl:variable>
<xsl:apply-templates select="xalan:node-set($x)"/>
</xsl:template>


The templates in the second pass (which you can put in a separae mode if
they would clash with your first pass) just need to be an identity
transform with extra templates to filter out whatever needs filtering.

David

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