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Re: Can XML Schemas do this?

optional integer fields schemas
Water Type and Contract can handle that.
Here's defining a new 'tag/class' named
person.  'Person' has a name that is a required
value of type string.
'Person' also has optional 'age' and 'birth'
fields.  The precondition also states that
one of the optional fields must be filled
in.  The fields/elements can be given in
any order.

<defclass person
   _precond=<defmethod> <not age.<is optional/>.
                             <and birth.<is optional/> />

_Mike Plusch
CTO, Clear Methods

----- Original Message -----
From: Brian Burridge
Sent: Monday, January 20, 2003 9:44 AM
Subject:  Can XML Schemas do this?

I have an xml document, where we want elements to be able to appear in
any order. Some are required, others aren't. And in many cases if you
have tag A then you don't need tag B, and vice versa.

Problem is, I need to use the ALL tag and have choices and groups
it, but you can't.

Is there a way around this?

Brian Burridge

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