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RE: Semantic equivalence of xml documents

• To: Paul Spencer <xml-dev@b...>
• Subject: RE: Semantic equivalence of xml documents
• From: Jens Stavnstrup <js@d...>
• Date: Mon, 26 Sep 2005 15:51:29 +0200 (CEST)
• Cc: Yves Langisch <lists@l...>, xml-dev@l...
• In-reply-to: <NBBBIBMKFOFCNEBAKDPLIEPOKAAA.xml-dev@b...>
• References: <NBBBIBMKFOFCNEBAKDPLIEPOKAAA.xml-dev@b...>
• Reply-to: Jens Stavnstrup <js@d...>

Another approach regarding the equivalence of XML documents (not semantic
though - if that is currently possible at all) have be created by Norman
Walsh in his changebar like tool located at
http://sourceforge.net/projects/diffmk

Note, the tool is only beta. I have not been able to make it work
flawlessly when comparing two versions of a DocBook document, but that
might be caused incorrect use by me. However, the concept seems
promissing.

Regards,

Jens

On Mon, 26 Sep 2005, Paul Spencer wrote:

>
> > -----Original Message-----
> > From: Yves Langisch [mailto:lists@l...]
>
> > okay, to talk about semantic equivalence in general is delicate. In our
> > case we have the assumption that if repeteable elements occurs, the
> > order is not relevant. We just want to check the presence of data on the
> > same level. At the moment we have a stylesheet which orders repeatable
> > elements (can be of a complex type) by, for example, the content of the
> > first sub-element. When we do this with the two input documents we can
> > compare the two output documents by a string comparison (apart from
> > possible whitespaces).
> >
> > Maybe there is a better solution?
>
> That sounds a reasonable approach.
>
> You probably need some sort of canonicalisation for your string comparison,
> or there are plenty of "XML aware" comparison tools. DeltaXML is one, or XML
> Spy has a tool built in.
>
> Paul Spencer
>
>
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• References:
  • RE: Semantic equivalence of xml documents
    • From: "Paul Spencer" <xml-dev@b...>

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