Re: Getting equivalence classes on attributes

Hello.  Is there a way to write an XPath expression that will return each
equivalence class on the value of an attribute, i.e. every collection of
nodes whose value for a certain attribute are the same e.g.

<foo att="bar"/>

<foo att="bar" att2="quux"/>

<blah att="bar"/>

<foo att="baz"/>

<foo att="quux"/>

The first three elements would belong to one equivalence class on the
attribute 'att', while the fourth would belong to another, and the fifth
to yet another.  I would want an XPath expression that would return each
of these equivalence classes.  Is this possible?

<xsl:template match="bar">
  ...
</xsl:template>

<xsl:template match="*[@att='bar']">
  ...
</xsl:template>

HTH,
Chris
--
Christopher R. Maden, XML Consultant
DTDs/schemas - conversion - ebooks - publishing - Web - B2B - training
<URL: http://crism.maden.org/consulting/ >
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