Subject: RE: [xsl] getting type information in xslt 2.0 From: "Michael Kay" <mike@xxxxxxxxxxxx> Date: Mon, 23 Oct 2006 08:56:56 +0100 |
You can test whether a node is an instance of a particular type by using "instance of". There's no way in standard XPath 2.0 of asking for the type that a particular node (or atomic value) belongs to. Saxon does have an extension function for this purpose, saxon:type-annotation(). It's useful for debugging purposes, but if you actually want to act on the information, "instance of" is safer because the actual type annotation can always be a subtype of what you are expecting. Michael Kay http://www.saxonica.com/ > -----Original Message----- > From: Erik Wilde [mailto:net.dret@xxxxxxxx] > Sent: 23 October 2006 05:23 > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx > Cc: Felix Michel > Subject: [xsl] getting type information in xslt 2.0 > > hello everybody. > > i am happy to see the support of xml schema and xml schema > type annotations in xpath 2.0. however, i am wondering how i > can actually get that type information. xdm defines an > accessor function for the type > information: > > http://www.w3.org/TR/xpath-datamodel/#dm-type-name > > but there does not seem to be an xpath function which lets me > use this xdm accessor function. so the questions i am having is: > > - is it correct that this xdm accessor function is not > available in xpath? > > - if so, how can i get the type information about an element > in xpath? > the functions on nodes in xpath seem to give no way to get to > these precious annotations in the xdm tree. > > http://www.w3.org/TR/xpath-functions/#node-functions > > funny enough, xslt 2.0 then gives me a special function to > discard the type annotations, but i am wondering why it is > that i can throw them away, but not get to them? > > http://www.w3.org/TR/2005/CR-xslt20-20051103/#stripping-annotations > > maybe i am simply not looking at the right things, but i > really could not find a way to get the type information in > xpath/xslt 2.0, so any help would be greatly appreciated! > > thanks and cheers, > > dret.
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