[SlugBug] more xslt questions. ignore if offended!

[Chris J]

> OK. Have edited the xsl as you suggested. Thanks for the help.
> 
> I'm using Perl and the XML::XSLT library to do the transformation.
> 
> It's still spitting out the contents of the last <page>  element rather 
> than the page element with the attribute title="home". Am I selecting 
> it correctly with the lines:
> 
> <xsl:apply-templates select="page[@title='Home']"/>
> 

...Yes that's all okay. I think the problem lies with XML::XSLT. I've just 
installed it here and seeing the results you describe; taking a peek at 
their man page[1] shows that is doesn't fully support XPath:

	xsl:apply-templates limited
		Attribute 'select' is supported to the same
		extent as xsl:value-of supports path selections.

		Not supported yet: - attribute 'mode' - xsl:sort
		and xsl:with-param in content

		.
		.
		.

	xsl:value-of limited
		Inserts attribute or element values. Limited support:
		   <xsl:value-of select=``.''/>
		   <xsl:value-of select=``/root-elem''/>
		   <xsl:value-of select=``elem''/>
		   <xsl:value-of select=``//elem''/>
		   <xsl:value-of select=``elem[n]''/>
		   <xsl:value-of select=``//elem[n]''/>
		   <xsl:value-of select=``@attr''/>
	 	   <xsl:value-of select=``text()''/>
	 	   <xsl:value-of select=``processing-instruction()''/>
	 	   <xsl:value-of select=``comment()''/>

	    and combinations of these.

Essentially, it doesn't support elem[test expression]. The elem[n] listed 
above is to match a partiular element by index (e.g., //elem[1] will match 
the first 'elem' element it comes across). It seems there's a lot of stuff 
listed that isn't fully supported...

Your best bet is to install a Perl hook into a full XSLT parser. There's a 
XML::Sablotron that I can see (I've not used it yet); Sablotron itself is 
straightforward to install (requires expat).

There's also a perl wrapper for the Apache project's Xalan processor (I've 
not used Xalan, so can't comment on speed/size/complexity to install etc).

Chris...
[1] http://xmlxslt.sourceforge.net/manpage-XML-XSLT.html

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