[xsl] regex help, please

Subject: [xsl] regex help, please
From: Brian Newman <brian.newman@xxxxxxxxxxx>
Date: Thu, 21 Jan 2010 18:07:44 -0500
I've got a pipe delimited list of data which I'd like to turn into an Xml doc
for further processing.

So, I use code something like

<xsl:stylesheet version="2.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:fo="http://www.w3.org/1999/XSL/Format";
xmlns:xs="http://www.w3.org/2001/XMLSchema";
xmlns:fn="http://www.w3.org/2005/xpath-functions";>
<xsl:template match="/">
<xsl:analyze-string regex="doctext" select='|'>
<xsl:matching-substring></xsl:matching-substring>
<xsl:non-matching-substring><item><xsl:value-of
select="."/></item></xsl:non-matching-substring>
</xsl:analyze-string>
<xsl:copy>
	<xsl:value-of select="$doctext/node()"/>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>

Which doesn't work - it doesn't recognize the pipe as a regex.
What should that regex be?
I've also tried /| and [|].

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