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   Re: [xml-dev] Preserving the structure of the XML file

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oleg.dulin@opence.net (Oleg Dulin) writes:
>Thank you for your response.
>I've experimented with your Ripper a bit. It appears to handle what we 
>need. I did notice a bug, though: it appears to stop parsing when it 
>encounters a PI without any data. For instance:
><?foo ?> breaks Ripper, while <?foo bar?> is ok

Eek.  I'll fix that - should be something simple in an if statement.

>Do you know of any other outstanding issues ?

If you count not processing the DTD as an outstanding issue, yes, though
that'll take more time to resolve.

>Ideally, what we need is a parser like RIpper that can capture the 
>events into a tree-like structure. I looked at MOE but it appears a lot 
>older than Ripper itself. Is there any active work being done on MOE ?

I'm working on integrating the two, but haven't had time.  MOE's
foundations were built with a Ripper-like parser in mind, but of course
the details have shifted.  I don't think that's active enough to solve
your problems at the moment, and I'm pretty much hoping to get to it in

>There appears to be another XML parsing technique that appears to
>preserve a lot more  information than SAX  -- it is XNI in Xerces. Of
>course, it is not nearly as complete as Ripper but it is more detailed
>than SAX and is actively used by Xerces. Have you ever evaluated XNI
>API for the purpose of "half-parsing" ? What is your opinion ?

I bounced off the XNI interface pretty hard - it seemed to be doing
things very differently from how I expected them to work, and I think it
simply has different priorities.  That said, it's been over a year since
I looked at XNI, and Xerces is certainly widely used.  Depending on the
level of detail you really need, XNI could well be a perfect fit for
your project.


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