[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Response to Simon St.L. on Entities v. XLL
> From: Simon St.Laurent <SimonStL@c...> > The processing model we'd like to see for EMBED is very similar to that used > for a text entity, but it doesn't look like we'll be getting there soon. > Entities and NOTATIONs serve their purposes, but XML-Link seems far more > flexible, especially for our needs. There is actually a fundamental difference in paradigm between XLL and entities too! * The SGML entity mechanism is based on having type information as part of the declaration of the entity, not in the entity reference and not in the entity itself. * The XLL mechanism (well, I should say the MIME mechanism really) is based on the entity being self-identifying as to type (aided by any additional attributes you like on the linking element). The first way works best in heterogenous and dumb systems, and large systems where you need to keep track of entities in one place (i.e. it is moving constants to the prolog of the document). The second way is more appropriate for the Web. So XML/XLL is very rich. I think it is important to note that even though XML is "SGML for the Web", it has always been assumed, I think, that XML will be powerful enough to be more than just a delivery format-- it has entities, for example, to allow it to be used for simple processing before and after it gets sent over the web. Rick Jelliffe 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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