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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: XML API specification
 In message <199702271419.JAA24115@n...> gtn@e... (Gavin Nicol) writes: > I think that for the *parser*, we should define an event-handling > interface, as it is much simpler to build certain applications > that way, and because you can build a tree from a stream of > events if you need to. In CoST Joe English supported both eventStreams and trees (I'm sure Joe will have some wisdom on this one). I started off using the event mechanism and switched to a tree-based one but I suspect that this was the nature of the application. My current problem may highlight this. A CML document is highly tree-structured and contains no mixed content, so that eventStreams don't contribute much. BUT it also includes chunks of HTML where a tree structure is quite inappropriate. If I take a Lark-based approach (or my own parser) the HTML gets rendered into a tree. I am now hacking this back into an event stream to render the hypertext. Not only does it take more effort, but I'm sure that holding HTML as a tree has a memory hit. Ideally when I'm parsing CML, and come to the tag <XHTML> (sic) which contains <BODY>, I'd like to tell the parser 'stop parsing as a tree and just hold a hypertext string until </XHTML>. We *could* do this with a PI, but would have to all agree. > > Some questions that will affect the API is whether one sees empty > element as elements containing nothing, or as elements unable to Yes. > contain anything, and wether entity/attribute type information needs > to be passed across thr API. I have been convinced that entity information needs to be preserved and I assume there are people who are concerned about attribute_type. If nothing else, this is probably critical for ID/IDREF. > > What do people think? How much information must the parser pass > along? At least what comes out of sgmls/ESIS, probably with general entities added. We also need to know the DOCTYPE info. [...] P. -- Peter Murray-Rust, domestic net connection Virtual School of Molecular Sciences http://www.vsms.nottingham.ac.uk/ xml-dev: A list for W3C XML Developers Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ To unsubscribe, send to majordomo@i... the following message; unsubscribe xml-dev List coordinator, Henry Rzepa (rzepa@i...) 
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