Re: saxon's: evaluate(string)

[Oliver Becker <obecker at informatik dot hu-berlin dot de>]

Ben,

> Is anyone familiar with the workings of the saxon function evaluate?  I read 
> the brief explination at
> http://users.iclway.co.uk/mhkay/saxon/extensions.html  is there a more 
> detailed description that I can read anywhere?  I am trying to take run-time 
> parameters and I know it is possible I just do not know how to do it.

Maybe you should be more detailed about your objective.
saxon:evaluate enables you to evaluate XPath expressions at run-time.
It takes a string and converts it to an expression.
This could be useful if your XPath comes from the XML input, e.g.
as an XPointer surrogate.
<xsl:value-of select="saxon:evaluate(link/@href)" />


If you just want to test parameters then you don't need this extension,
for example
<xsl:value-of select="node/child[@att=$parameter]" />

I'm not really sure if this short explanation is sufficient ...

Cheers,
Oliver


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