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   Re: XSD: Proposed Goals, Rev. 2

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  • From: Peter Murray-Rust <peter@ursus.demon.co.uk>
  • To: "Xml-Dev (E-mail)" <xml-dev@ic.ac.uk>
  • Date: Wed, 27 May 1998 21:48:39

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"?>
BUILTIN is a generic attribute for defining the semantics of
an ARRAY or XVAR element. More later.
TYPE is the data type of the Item (e.g. INTEGER);
ARRAY (DXN):                   (superclass DrawableX_Node)
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.
<!-- ... deleted ... -->

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.



Peter Murray-Rust, Director Virtual School of Molecular Sciences, domestic
net connection
VSMS http://www.nottingham.ac.uk/vsms, Virtual Hyperglossary

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