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RE: : Context inside nested for-eaches from different d

Subject: RE: : Context inside nested for-eaches from different document()s
From: "Michael Kay" <michael.h.kay@xxxxxxxxxxxx>
Date: Mon, 28 Jan 2002 16:23:08 -0000
> I have something like this:
> <xsl:variable name="a" select="document('a.xml')/TopNode"/>
> ...
> <xsl:template match="elementX">
> <xsl:for-each select="$a">
> <xsl:value-of select="./@AnAttribute[../@DifferentAttribute=
> <<here I want
> to refer to an attribute from an elementX>>]"/>
> My problem is that normally the for-each would be iterating
> over a node
> inside the current document, so to get up out of the loop to
> the current
> match would involve moving up the document structure.
> In this case, where the loop is iterating over nodes from a different
> document held in a variable, the matched node seems to be
> inaccessible. How
> can I get at my elementX?

Assign it to a variable before going into the <xsl:for-each>

<xsl:variable name="elementX" select="."/>

Mike Kay
> Hypothetically, this situation could be even further nested.
> Would it be
> useful if you could navigate up and down the nested levels to
> get at the
> current node of each? This would be a new axis, with less to do with
> document structure than the logical structure of the stylesheet.
An early draft of XSLT had something like this, partially preserved in the
context() function of WD-xsl. I think that peeking down the stack is
intrinsically error-prone, and that using explicit variables is far safer.

Mike Kay

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