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RE: optional, but at least one required

From: Virginia Wiswell <vwiswell@verizon.net>
Date: Tue, 09 Oct 2007 15:13:28 -0400
To: <xmlschema-dev@w3.org>
Message-id: <PDEHLOEJGKNHGIFPMDICAEHDCCAA.vwiswell@verizon.net>

I have a similar situation that I'm having trouble with. I have a and b, at
least one of them has to appear once AND ONLY ONCE. a must come before b.
The examples in this thread allow more than one occurrence of a or b.

This is my first attempt at customizing a schema and I'm stuck.

TIA, Virginia

> You need to specify the requirements in a little more detail:
> * are multiple occurrences of a, b, and c allowed?
> * what constraints do you want to impose on the ordering of the elements?
> Michael Kay
> http://www.saxonica.com/
Received on Wednesday, 10 October 2007 04:37:18 UTC

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