Sebastien Sahuc wrote:
> 
> > <xsl:variable name="sum" select="$a + $b"/>
> 
> The select attribute of xsl:variable expect a nodeset, 

I don't think it does. Here's what the spec says:

"If the variable-binding element has a select attribute, then the value
of the attribute must be an expression and the value of the variable is
the object that results from evaluating the expression."

 Paul Prescod


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