• To: Alessandro Triglia <sandro@m...>
• Subject: Re: RE : Comparison of Xml documents
• From: Bob Foster <bob@o...>
• Date: Mon, 24 Nov 2003 20:09:17 -0600
• Cc: bob@w..., xml-dev@l...
• In-reply-to: <000601c3b299$a1496cb0$8d5d7ed2@aldebaran>
• References: <000601c3b299$a1496cb0$8d5d7ed2@aldebaran>
• User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.5) Gecko/20031007

On another point, you have said a couple of times that ASN.1 doesn't 
provide anything like XSD's 'all'.

 > So, although ASN.1 lacks, per se, an equivalent of the WXS "all" model
 > group...

Why do you say that? Is it just a matter of notation? 'all' isn't 
anything but a variable-order sequence with possibly optional elements. 
Is it that the ASN.1 corollaries don't allow optional elements?

I can see why ASN.1 might not offer the equivalent of RELAX NG's shuffle 
(which it calls interleave) or SGML's variable-order sequence with 
optional and repeating elements (which it calls interleave), but not 
little old 'all'.

Bob Foster

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