[xsl] The pipe '|' operator: Does it mean Or or Union?

[kakridge@xxxxxxxxxxxxx]

I've noticed the the Muenchian method uses '|' and that everyone refers
to this as a Union.  However, I also read that this

<xsl:template match="foo | foobar">

means to match the foo OR foobar elements.  Does the definition of the
operator change based on the application?


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