[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: SAX and delayed entity loading
At 02:17 PM 12/3/98 -0500, John Cowan wrote: >I think it is important to distinguish between the use of unparsed >entities (which involves notations) and the use of notations. >Notations that govern elements through the use of a NOTATION attribute >are a powerful feature for describing >the syntax of what's in the element, as is shown by the repeated >attempts to reinvent them in various schema proposals. As stated in my reply to Eliot, they >provide a distributed registry as opposed to the centralized registry >plus private use mechanism of MIME, but sacrifice MIME's declarative >features that allow partial interpretation of unknown types. I still argue that notations are a waste of time based on the misguided notion that information about dependencies (of whatever type) actually belongs in the document. Let the dependent pieces be self-describing (MIME or something better), and you'll have a far more manageable system. Keep as little information in the document as possible, and remember that there are other tools out there that can describe non-XML data types. XML can focus on XML, which is what is does best, and leave the rest of this out of it. If the dependencies are within the document, then that's a case for meaningful and flexible schemas, not for notations. If schemas won't cut it, then maybe you can turn to an external source for information on element types, but it seems like you've really gone too far at that point. >> How >> would I apply a MIME type to an attribute? More important, why one earth >> would I want to? Seems like some pretty heavy overkill. > >To say what the internal syntax of the attribute value is. > Er, yes, that's overkill, like I said. Nuclear weapons to kill gnats and all that. Seems like a schema could crush that gnat quite nicely, and even use MIME types if necessary, without resorting to notations. Simon St.Laurent XML: A Primer / Cookies Sharing Bandwidth (December) Building XML Applications (January) http://www.simonstl.com xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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