Re: [xsl] when to use 'as' attribute on a variable

Subject: Re: [xsl] when to use 'as' attribute on a variable
From: "Dimitre Novatchev" <dnovatchev@xxxxxxxxx>
Date: Thu, 9 Mar 2006 06:45:00 +1100
> >item() includes atomic types such as integers so 1 (an integer) and "1"
> >(a string) are both of type item() but not of type node()
>
> In XPath 1 <xsl:value-of select="node()"/> would return the value of the
> text nodes - presumably the node() you are referring to is a completely
> different data type and unrelated?

Yes,

the following XPath 2.0 expression

   1 to 5

specifies a sequence of 5 items of type xs:integer. None of this items
is a node.



--
Cheers,
Dimitre Novatchev
---------------------------------------
A writer is a person for whom writing is more difficult than it is for
other people.


>
>
> >From: David Carlisle <davidc@xxxxxxxxx>
> >Reply-To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> >To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> >Subject: Re: [xsl] when to use 'as' attribute on a variable
> >Date: Wed, 8 Mar 2006 11:08:38 GMT
> >
> > > To store an external XML doc in a variable am I right in saying I
should
> >use
> > > document-node() ?
> >
> >yes
> >
> > > To store an nodeset taken from the XML in a variable I should use
> >item()?
> >
> >XPath2 doesn't have node sets (They are the XPath1 datatype) it has
> >sequences. The nearest type to a node set is a sequence of nodes which
> >is node()*. If you need to store a sequence of nodes you can use node()*
> >but if your "nodeset" is just a single top level element then you can
> >use more specific types such as node() or element().
> >
> > > Then what is the node()
> >
> >see above
> >
> > > type for and how is it different from item()?
> >
> >item() includes atomic types such as integers so 1 (an integer) and "1"
> >(a string) are both of type item() but not of type node() the type
> >item()*
> >is a sequence of items and is the most general type, all XPath2 values
> >match that type.
> >
> >David
> >
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