Exploiting RELAX NG for CIQ.

[David RR Webber <Gnosis_@compuserve.com>]

Ram,

We should also look at a RELAX NG implementation,
as I think this is what is needed to simplify the
overal structure of CIQ TC so people see just
the small piece they need.

Also - as a fellow OASIS TC this is good to 
code-share.

Thanks, DW.

-------------Forwarded Message-----------------

From:	Murata Makoto, INTERNET:mura034@attglobal.net
To:	TREX Discussion List, INTERNET:trex@lists.oasis-open.org
	
Date:	5/19/2001 11:32 AM

RE:	Re: combine

 
Norman Walsh wrote:

> / James Clark <jjc@jclark.com> was heard to say:
> | Right.  We could have a restriction on combine="group" that you can't use it
> | in a way which makes order significant (eg combining two <element>
> | patterns).  On the other hand that would rule out using combine="group" to
> | provide functionality similar to derivation of complex types by extension in
> | XML Schema (adding things on to the end of a content model).
> 
> Making order insignificant would be nice, but I think it would be a
> mistake to lose the ability to mutate content models this way.

We do not need "combine" for mimicking "derivation by extension".
Here is a rewrite of an example of "derivation by extension" in 
XML Schema Part 0.  

<grammar>

<start>
<element name="dmy">
<element name="uk">
  <ref name="UKAddress"/>
</element>
<element name="us">
  <ref name="USAddress"/>
</element>
</element>
</start>

<define name="Address">
   <element name="name"><anyString/></element>
   <element name="street"><anyString/></element>
   <element name="city"><anyString/></element>
</define>

 <define name="USAddress">
  <ref name="Address"/>
  <element name="state"><anyString/></element>
  <element name="zip"><anyString/></element>
 </define>

 <define name="UKAddress">
  <ref name="Address"/>
  <element name="postcode"><anyString/></element>
  <attribute name="exportCode"><anyString/></attribute>
 </define>

</grammar>

Cheers,

Makoto




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Date: Sun, 20 May 2001 00:31:45 +0900
From: Murata Makoto <mura034@attglobal.net>
Subject: Re: combine
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