[xsl] Cleaning text away from context position ...

[Soren Kuula <dongfang@xxxxxxxxxxx>]

Hi,

I'm toying with a stylesheet that copies an XML document .. and adds an 
attribute named id:

For the root element, id is 1
For some other element, id is that of the parent, plus ',' plus the 
child cardinality of the element (so first child of the root is 1,1, 
second child of the root is 1,2, second child of third child of the root 
is 1,3,2 etc).

Something like:
<?xml version='1.0'?>
<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
 <xsl:template match="*|@*|comment()|processing-instruction()">
   <xsl:param name="id" select="''"/>
   <xsl:param name="sep" select="''"/>
   <xsl:variable name="qid" select="concat($id, $sep, position())"/>
   <xsl:copy>
     <xsl:attribute name="id">
       <xsl:value-of select="$qid"/>
     </xsl:attribute>
     <xsl:apply-templates 
select="*|@*|comment()|processing-instruction()|text()">
       <xsl:with-param name="id" select="$qid"/>
       <xsl:with-param name="sep" select="','"/>
     </xsl:apply-templates>
   </xsl:copy>
 </xsl:template>

Applying it to itself, I get
<?xml version="1.0"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; id="1" 
version="1.0">
 <xsl:template id="1,5" match="*|@*|comment()|processing-instruction()">
   <xsl:param id="1,5,3" name="id" select="''"/>
   <xsl:param id="1,5,5" name="sep" select="''"/>
   <xsl:variable id="1,5,7" name="qid" select="concat($id, $sep, 
position())"/>
   <xsl:copy id="1,5,9">
     <xsl:attribute id="1,5,9,2" name="id">
       <xsl:value-of id="1,5,9,2,3" select="$qid"/>
     </xsl:attribute>
     <xsl:apply-templates id="1,5,9,4" 
select="*|@*|comment()|processing-instruction()|text()">
       <xsl:with-param id="1,5,9,4,3" name="id" select="$qid"/>
       <xsl:with-param id="1,5,9,4,5" name="sep" select="','"/>
     </xsl:apply-templates>
   </xsl:copy>
 </xsl:template>
</xsl:stylesheet>

- not quite what I wanted, as text nodes are included in the context 
list and affect context positions.

What to do about it? I want to preserve text nodes. Seems I can't select 
and recurse on all element nodes and all text nodes separately (getting 
a nice context list of elements only), as that would mess up the order 
of things.

Any good ideas? Need to recurse in the sibling direction instead?

Soren