Re: [xsl] How to verify equivalence of two node trees ?

[Dimtre Novatchev <dnovatchev@xxxxxxxxx>]

Maybe this draft W3C spec could help:

http://www.w3.org/2001/tag/doc/xmlChunkEquality.html


Cheers,
Dimitre.


On Thu, 28 Oct 2004 08:02:56 +0100, Michael Kay <mike@xxxxxxxxxxxx> wrote:
> You need to provide much more detailed specifications of your three equality
> functions - you might like to look at the spec of deep-equals() in XPath 2.0
> to see the kind of things you need to take into account (or decide not to
> take into account). For example, does it matter to you whether the elements
> have the same in-scope namespaces? Are whitespace-only text nodes
> significant? Are comments and processing instructions significant?
> 
> It's a bit easier to write such functions in 2.0, but the essential
> technique is the same as at 1.0: you will need a recursive function/template
> that walks down the tree applying the same kind of test at each level.
> 
> Michael Kay 
> 
> 
> 
> > -----Original Message-----
> > From: Matt Adams [mailto:mattad@xxxxxxxxx]
> > Sent: 28 October 2004 06:36
> > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> > Subject: [xsl] How to verify equivalence of two node trees ?
> >
> > Assume we have two node trees with the root nodes $aroot and $broot:
> >
> > <xsl:variable name="aroot" select="...." />
> > <xsl:variable name="broot" select="...." />
> >
> > How can I test the equivalence of the two node trees ?
> > More precisely there are should be three kinds of tests:
> >
> > 1.) Testing if tree a is equal to tree b only looking at the elements
> > but ignoring possible existing attributes and their values
> >
> > 2.) Testing if tree a is equal to tree b regarding the
> > elements and their
> > attributes but ignoring the values of the attributes
> >
> > 3.) Finally testing if tree a is equal to tree b regarding elements,
> > their attribute (names) and the attribbute values.
> >
> > How can I implement such a test in XSLT?
> > Is there possibly a smarter solution in XSLT 2.0 ?
> >
> > Matt
> > --
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