Re: Feeler for SML (Simple Markup Language)
----- Original Message ----- From: Tim Bray <tbray@t...> To: Michael Champion <Mike.Champion@s...>; <xml-dev@i...> Sent: Monday, November 15, 1999 12:23 PM Subject: Re: Feeler for SML (Simple Markup Language) > So what do you recommend? Specifically please. 1 - I'd like to see an activity not unlike the one that defined SAX a couple of years ago collaboratively researching what a minimal subset of XML and/or the DOM for high-performance and/or small footprint processors might look like. This would entail some actual code experiments to see if there really is a significant decrease in processing time or code footprint by throwing out support for these features. If there's no empirically demonstratable gain, I for one don't want to continue the pain of this discussion. 2 - Assuming for the moment that a gain can be demonstrated, I'd like to see a mechanism in XML itself to allow XML messages, documents, etc. to specify that they use only some defined subset of features. In other words, I'd like to see some built-in mechanism for "bifurcating" XML without descending into the chaos of non-interoperability. 3 - I'd like to see some specification or demonstration for how an XML processor that is optimized for a subset of the spec can "barf" on external entities or other unsupported features in a way that would allow it to potentially extract useful information out of the document or message it's processing. For example, I might (for some reasons of my own) document or "decorate" an XML message with attributes or entities, but when Don Park gets it ;~) , his stripped down processor should be able to extract the "wheat" (simple element values) and ignore the "chaff" (my documentation and decoration). Such a mechanism would have to be much lighter weight than what would be possible with DTDs or schemas. (Again, if it can be demonstrated that something functionally equivalent can be done *efficiently* without mucking with the XML spec, so much the better). 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/ and on CD-ROM/ISBN 981-02-3594-1 To unsubscribe, mailto:majordomo@i... the following message; unsubscribe 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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