At 2008-08-30 12:49 +0300, Vladimir Nesterovsky wrote:
Is there something I can pass to xslt for it to evaluate that
something in the use-when attribute in the xsl:inlcude, and xsl:import?
In particular I'm using saxon in java.
I think I have found a clean way to achieve the desired effect.
I'll define an uri resolver that among others will resolve uri like
"configuration:data".
Thus I can write:
<xsl:include
href="..." use-when="document('configuration:data')/data/xs:boolean(@xxx)"/>
I guess, this approach has a virtue to be almost processor independent.
Except that it won't work. Your use-when= above relies on *some*
document context in order to determine the argument values for the
document() function, but as I mentioned earlier all use-when=
processing *must* happen before any input source tree is
loaded. After all, there may be some top-level instructions in the
imported stylesheet tree that impact on the source node tree.
So, in summary, the document() function cannot be used because it is
*not* independent of the source node tree ... it needs to be executed
in *some* source node tree context and there is no source node tree
when the processor acts on use-when=.
I'm quite confident your proposed approach will not work ... you say
you found it, but have you tried it?
I hope this helps.
. . . . . . . . . . . . . Ken
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