Out of interest, can someone comment on the cost of calling these
functions? I imagine element-available() is very cheap, but I'm
wondering about function-available() with user created extensions...
Given a transform that makes use of many custom extensions, is it
reasonable to do:
<xsl:choose>
<xsl:when test="function-available( )">
normal execution
</
<xsl:otherwise>
test execution
...to allow you to run the transform away from the host application?
Or would all the calls to function-available() adversely affect normal
running of the transform?
The alternative (and good practice anway I think) is to move all of
the calls to extensions into one or maybe two physical stylesheets,
and then you can use an alternative primary stylesheet that imports a
different stylesheet where the calls to the extensions have been
replaced with sample values....
Either way, I'm just wondering if I should try to avoid lots of
function-available() calls?
2008/10/22 Jesper Tverskov <jesper(_at_)tverskov(_dot_)dk>:
I have tested the little used XSLT functions element-available() and
function-available() and made a stylesheet that can create a report
for most XSLT processors, testing also for EXSLT extensions and Saxon
extensions.
I have made 8 reports available and a summary, "Elements and functions
available in XSLT processors",
http://www.xmlplease.com/elements-functions.
Feel free to suggest improvements.
Best regards,
Jesper Tverskov
http://www.xmlplease.com
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