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Storing saxon:expression
Added by Anonymous over 16 years ago
Legacy ID: #4667229
Legacy Poster: Freek Segers (freeksegers)
Hi, I'm trying to optimize an XSLT that needs to apply a lot of external XPath
expression multiple times. In the example of saxon:epxression() I saw that it's possible
to store the compiled expression in a variable. I tried to store my expressions in a
temporary tree inside a variable like: <xpath
@key="{$key}"> <xsl:copy-of
select="saxon:expression(XPath)"/> </xpath> When
I try to eval the xpath I get an error SXXF0001: First argument to saxon:eval must be an
expression prepared using saxon:expression Can I store my expressions in some other way?
Thanks, Freek Segers
Legacy ID: #4667286
Legacy Poster: Michael Kay (mhkay)
You can save the expression in a variable like this: <xsl:variable
name="x" select="saxon:expression(XPath)"/>
You can't put objects like this into the nodes of a tree - that has the effect of
converting them to character strings, which loses all the useful information.
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