Re: XSD: Proposed Goals, Rev. 2
At 14:17 27/05/98 UT, Simon St.Laurent wrote: > >1. SDDs shall use XML document syntax, using element nesting and attributes to >describe all constraints that may be verified by a processor using XSD. > In case it helps give an idea of the level that I am aiming at, here is what I use in JUMBO1 for 'DTD' management: <?xml version="1.0"?> <CML> <ELEMENT NAME="ARRAY"> <CONTENT>(#PCDATA)</CONTENT> <ATTLIST TITLE="BUILTIN"> <NAME>BUILTIN</NAME> <TYPE>CDATA</TYPE> <DEFAULT>#IMPLIED</DEFAULT> <HTML TITLE="HELP"> <P> BUILTIN is a generic attribute for defining the semantics of an ARRAY or XVAR element. More later. </P> </HTML> </ATTLIST> <ATTLIST TITLE="TYPE"> <NAME>TYPE</NAME> <TYPE>CDATA</TYPE> <DEFAULT>#IMPLIED</DEFAULT> <HTML TITLE="HELP"> <P> TYPE is the data type of the Item (e.g. INTEGER); </P> </HTML> </ATTLIST> <HTML TITLE="HELP"> <P> ARRAY (DXN): (superclass DrawableX_Node) </P> <P> A container for a simple homogenous list of primitive objects (STRING, FLOAT, DATE, URL, etc). ARRAYs have BUILTINs associated with them in both TecML and CML. </P> <!-- ... deleted ... --> </HTML> </ELEMENT> </CML> This was pre-namespaces... and also was not verifiable (although there *was* a DTD somewhere for this syntax I didn't use it :-). Also at that stage I simply put in the ASCII content spec whereas later I parsed the spec and included it as a subtree. I would now suggest that the elementType names were taken directly from the spec, etc. HTH P. Peter Murray-Rust, Director Virtual School of Molecular Sciences, domestic net connection VSMS http://www.nottingham.ac.uk/vsms, Virtual Hyperglossary http://www.venus.co.uk/vhg 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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