Subject: Re: [xsl] Possible to pass 'empty sequence' to function? From: Dimitre Novatchev <dnovatchev@xxxxxxxxx> Date: Thu, 31 Mar 2005 21:11:32 +1000 |
On Thu, 31 Mar 2005 11:58:51 +0100, Andrew Welch <ajwelch@xxxxxxxxxxxxxxx> wrote: > > > 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. Also, using: <xsl:variable name="vFun" as="element()"> <myFun:myFun/> </xsl:variable> is much faster than: <xsl:variable name="vFun" select="document('')/*/myFun:*[1]"/> because no re-parsing of the stylesheet will take place in the former case. I am gradually upgrading FXSL to use this technique. Cheers, Dimitre Novatchev
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