[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: XML and standards (was Re: Integrity in the Hands of the Client)
On Mon, 24 Nov 1997, Paul Prescod wrote: > > What if that troff document contained a link to an implementation of a > > troff formatter? What if that implementation described its interface using > > XML? > > What if it didn't? What if it described its interface using CORBA or > some proprietary language that is more powerful than CORBA? You don't > lose any flexibity or expressive power, you just have to write another > parser for CORBA or your proprietary language. My point is that if it did, then no longer are clients responsible for interpreting the semantics of the data - a contained/referenced implementation is. In comp doc frameworks, when a new stream of data is introduced into a container, the framework decides the type of the data and then attempts to find an editor based on that type. The editor knows what to do with that data, and negotiates with the container for the real-estate for its presentation. For XML docs, the "type" doesn't have to be a DTD, though that might still be useful. The "type" could just as easily be a tag (so a single document would contain many embedded types). So if a well-formed document comes streaming into our container, the framework would start parsing it, come across a tag called 'troff', and then proceed to try and discover and install a chunk of code that knows how to parse/render troff. Or the document could provide its own ref(s) (more likely for scalability purposes). Either way, it's not the container (the client) that's responsible for interpreting the semantics of the data. It's the document itself that is responsible. > When you use XML to replace an existing standard, you are, for a period > at least, actually working against open standards and promoting a > proprietary alternative, even if it is expressed in the standard > notation of SGML/XML. In the example above, how might we implement that framework without assuming a data format? MB -- Mark Baker, Ottawa Ontario CANADA. Java, CORBA, XML, Beans http://www.iosphere.net/~markb distobj@a... ICQ:5100069 Will distribute business objects for food. 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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