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RE: Possible to pass 'empty sequence' to function?

2005-03-31 03:58:51

if you don't use as then an xsl:variable with content and no 
select attribute produces a temporary tree, what we used to 
lovingly call a result tree fragment.

<xsl:variable name="x">hello</xsl:variable>

$x is (a sequence of one) document node that has a single 
text node child that has string value "hello"


<xsl:variable name="y" as="string?">hello</xsl:variable>

$x is (a sequence of one) string with value "hello"


Is this really the case?  Does it really mean that the processor doesn't
construct the temporary tree (and then atomise it?) - if so then it's
really useful.

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