As far as I can tell, when using a key() with the MSXML4 extention
node-set(),
the call to key('key-name', val)[1] does not always return the same node for
a constant val.

I have this stylesheet:

<?xml version="1.0" encoding="UTF-8" ?> 
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:msxsl="urn:schemas-microsoft-com:xslt"> 

<xsl:variable name="set"
select="msxsl:node-set(document(/files/node/@path))"/> 
<xsl:key name="k-id" match="person" use="@id" /> 

<xsl:template name="distinct"> 
        <xsl:for-each select="$set/doc/person[@id='4']"> 
            <info self-id="{generate-id(.)}"
index-id="{generate-id(key('k-id',@id)[1])}"> 
                <self> 
                    <xsl:copy-of select="."/> 
                </self> 
                <index> 
                    <xsl:copy-of select="key('k-id',@id)[1]" /> 
                </index> 
            </info> 
        </xsl:for-each> 
</xsl:template> 

<xsl:template match="/"> 
<test> 
<xsl:call-template name="distinct" /> 
</test> 
</xsl:template> 
</xsl:stylesheet> 

And two input files:

-------------------------------------------
input1.xml
<?xml version="1.0" encoding="utf-8" ?> 
 <doc> 
        <person name="onePerson" id="4" /> 
</doc> 
-------------------------------------------
input2.xml
<?xml version="1.0" encoding="utf-8" ?> 
 <doc> 
        <person name="otherPerson" id="4" /> 
</doc> 
-----------------------------------------------
When I run my stilesheet I get:

 <?xml version="1.0" encoding="UTF-16" ?> 
- <test xmlns:msxsl="urn:schemas-microsoft-com:xslt"> 
- <info self-id="IDAUQ2N" index-id="IDAUQ2N"> 
-     <self> 
          <person name="onePerson" id="4" /> 
      </self> 
-     <index> 
          <person name="onePerson" id="4" /> 
      </index> 
      </info> 
-         <info self-id="IDAIY2N" index-id="IDAIY2N"> 
-     <self> 
          <person name="otherPerson" id="4" /> 
      </self> 
-     <index> 
          <person name="otherPerson" id="4" /> 
      </index> 
      </info> 
  </test> 

It looks like there is a seperate key for each tree-fragment in the
node-set.
Did I miss something, or is this a known problem?

-alex




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