Tokenized values

According to the XML Spec there are several tokenized types (IDREFS,
ENTITIES, NMTOKENS
http://www.w3.org/TR/2000/WD-xml-2e-20000814#NT-TokenizedType) which are
valid for attribute values. How would one handle these values in XSL? I'm in
the middle of building a recursive named template to parse out the values
but then when I'm done, all I get is a series of result trees. 

Is there a reason why XSL doesn't include something like

<xsl:variable name="values" select="split(@something)" /> 
<xsl:apply-templates select="$values/text()" />

It seems that since this functionality handles a common XML situation (the
HTML class attribute), this should be built in to XSL and not an extention.

TTFN, 
Adam van den Hoven
Internet Software Developer
Blue Zone
tel. 604 685 4310 ext. 260
fax 604 685 4391

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