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[xsl] Context node versus current streaming position

Subject: [xsl] Context node versus current streaming position
From: "Costello, Roger L." <costello@xxxxxxxxx>
Date: Fri, 31 Jan 2014 10:34:03 +0000

Hi Folks,

I learned something neat from Michael Kay.

I learned that context node and current streaming position are not always the

Suppose the XSLT processor is streaming through an input document and has
arrived at element N. The <N> element  is the current streaming position.

Now suppose the XSLT program instructs the XSLT processor: from your current
streaming position climb the XML tree and return the name of each ancestor

	<xsl:for-each select="ancestor::*">
	    <xsl:value-of select="name(.)" />

The context position changes with each iteration of the for-each statement.
But the current streaming position remains the same.

This is a key concept!


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