Re: [xsl] Building RTF variable

Subject: Re: [xsl] Building RTF variable
From: Peter Davis <pdavis152@xxxxxxxxx>
Date: Fri, 25 Oct 2002 10:41:48 -0700
Hash: SHA1

On Friday 25 October 2002 00:47, Ragulf Pickaxe wrote:
> >"xxx:node-set($Test)/node[1]".
> But... is it then not possible to build a nodeset directly in the XSL? What
> is the difference between doing thus and the example that I had in the
> orriginal mail?

No, it's not currently possible with standard processors.  The difference is 
that you were creating a Result Tree Fragment (RTF), which is not the same as 
a node-set.

All you can do with an RTF is <xsl:copy-of/> and <xsl:value-of/>.  The idea is 
(was) that you can create an RTF as the value of a variable and re-use it 
throughout your stylesheet.  For example, in HTML you might have some special 
code to output a bullet point with pretty graphics, and you want to re-use 
that code with the exact same <img> tag.

You cannot select children of an RTF.  To do that, you have to convert it to a 
node-set.  Processor designers realized the pain of doing this, so they 
provide xxx:node-set() functions to do the conversion.  Unfortunately, the 
functions are not compatible between processors, so you will have to do some 
tricks if you want to use more than one processor.

> With the example I do not need any conversions between anything.

Well, go complain to the XSLT 1.0 designers :).  XSLT 2.0 doesn't have this 
problem, since so many people like yourself have complained.

I believe that Saxon 7.0 is the only browser that supports XSLT 2.0.  You can 
go try that, get RTF to node-set conversion, and a bunch of other new 
features for free.

- -- 
Peter Davis
Version: GnuPG v1.0.7 (GNU/Linux)


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