AW: AW: for-each with included variable

Hi David,


Thank you for your comment, but I don't think I'm getting it. The situation
is the following:
I have that variable declared at global scope (at least I assumed I did when
including it), so the content cannot change - at least that's how I
understood the concept of XSL variables. As long as I'm not going out of
scope it will have the value it initially had.

<xsl:include href="IncludeMe.xsl"/>
<!-- $myOPTypeList declared here -->

<xsl:template select="/">
  <xsl:for-each select="Whatever">
    <xsl:for-each select="$myOPTypeList">
      <!-- do some stuff -->
    </xsl:for-each>
  </xsl:for-each>
</xsl:template>

So I think what changes is the nodeset that is retrieved when applying the
content of the variable, not the content of the variable itself. Or is that
wrong?

What I cannot see - due to my poor knowledge of XPath - is the semantic
difference between: 

<xsl:for-each select="(.//*[@OPTypeRef='Type1'])[1] |
(.//*[@OPTypeRef='Type2'])[1] | (.//*[@OPTypeRef='Type3'])[1]">
  <!-- do some stuff -->
</xsl:for-each>

and 

<xsl:variable name="myOPTypeList">XType1,XType2,XType3</xsl:variable>
<!-- global variable again -->

<xsl:for-each select="(.//*[@OPTypeRef[contains($myOPTypeList, .)]])[1]">
  <!-- do some stuff -->
</xsl:for-each>

And there must be a difference because the output is not the same.


Renato


> -----Ursprüngliche Nachricht-----
> Von: davidc@xxxxxxxxx [mailto:davidc@xxxxxxxxx]
> Gesendet am: Donnerstag, 19. April 2001 16:41
> An: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Betreff: Re: AW:  for-each with included variable
> 
> 
> > The variable now holds
> > the entire expression, not just a list of single literals.
> 
> It doesn't hold the expression: it holds the _value_ (ie node set)
> obtained by evaluating that expression at the point you have
> the xsl:variable. this might be a different value than would have been
> obtained by evalutaing the expression at the point you now use
> $myOPTypeList
> 
> David
> 
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