[YML] Re: YML: A Grand Unification of SAX and DOM? (fwd)
Paul Tchistopolskii
paul at qub.com
Sun Dec 5 00:08:33 GMT 1999
> Paul, I didn't get this at all. Sorry.
I think it's because you are concentrated on
another task than I am. I'm thinking about
mixing streaming and Groves for processing
XML ( SML ) documents.
> On Sat, 4 Dec 1999, Paul Tchistopolskii wrote:
> > There is also *very* elegant
> > 'reverse-polish-notation' approach
> > proposed by Robert ( process
> > element when Grove is in place,
> > providing the execution stack ).
> >
> > Not sure he was talking about the
> > execution stack, it was my attempt to
> > understand how could it work.
> >
> > The only drawback of such a view
> > is that the execution stack constantly
> > grows and we need to clean it up
> > sometimes.
> >
> > However.
> >
> > Because mutithreading approach should
> > have the same drawback, I think that the
> > workaround should already exist in the
> > source code of SP ( thanks to Sean for
> > pointing that SP is an existing implementation
> > of multithreading approach ).
> >
> > No namespaces, no extra markup -
> > just smart cleanup ( could be easier
> > than look-ahead, because the information
> > to make a descision is already 'in place',
> > right? )
>
> I'm talking about using a low-level recursive
> binary distinction in syntax to unify the
> behavior of SAX and DOM -- without *any*
> schema knowledge of the input stream known
> by the parser author, nor requiring any
> external processing guidelines.
Your approach is : "if we'l write our document
providing some extra information, it'l be easier
for processing API to make a desision how
to process it".
Even I found your proposal to be very elegant,
I dont like that idea in principle. It's the attributish
way when one is marking 'road-signs' or 'pockets'
in the document. Document sould be about the content,
not about the 'road-signs' , PI's, and some other stuff
Stylesheet is about processing ;-)
I'l prefer to attach the 'road-signs' at runtime.
I see 2 ways for now to change processing of the
XML ( SML ) documents not changing the documents
themselvs.
simple SAX-based 'switcher'
reverse-polish-noitation view
After I'l understand what way makes life easier for
streaming XSLT I may write more. It is all getting
hard.
Rgds.Paul.
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