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Re: XML 1.1 Impact on SOAP

From: Jacek Kopecky <jacek.kopecky@systinet.com>
Date: Thu, 12 Feb 2004 14:54:37 +0100
To: Noah Mendelsohn <noah_mendelsohn@us.ibm.com>
Cc: XMLP Dist App <xml-dist-app@w3.org>
Message-Id: <1076594077.20170.98.camel@localhost>

Noah, others,

it is my opinion that we should not prohibit the use of XML 1.1 with
SOAP (or the HTTP binding in particular), even if in some cases there
may be problems. I believe that if we just refer to XML (giving XML 1.0
as an example of what we mean) and if we are silent in the normative
parts on the possible problems of interaction between XML 1.0 and 1.1,
the benefit will much exceed the occasional hiccups. 

We don't have to be totally silent on this though, we could produce a
note or add an appendix that mentions these problems and that for
interop reasons, XML 1.0 should probably be used where XML 1.1 is not
required, or we might want to point to some kind of official W3C
statement regarding the transition from XML 1.0 to 1.1.

So, if the current Recommendation is dependent specifically on XML 1.0
(it seems there are some such references), those dependencies should be
removed as errata. A quick search through Part 1 indicates that the
dependency is on the definition of white space characters, Part 2
dependencies on XML 1.0 seem to be deeper. 

Best regards,

                   Jacek Kopecky

                   Systinet Corporation

On Wed, 2004-02-11 at 23:00, noah_mendelsohn@us.ibm.com wrote:
> A few days ago I sent a sequence of notes [1,2] raising some issues
> relating to XML 1.1 and its possible impact on SOAP.  The issue is logged
> at [3].  On today's WG call I took an action to send this note, which is to
> explicitly urge you all to begin discussion of these issues here on this
> list.
> Note that, since writing [1,2] I have noticed an additional feature of XML
> 1.1:  it expands in an open-ended way the set of characters usable in the
> names of XML elements and attributes.  In addition to the issues already
> raised, I believe we need to decide if and when such names are allowed in
> the content of SOAP Headers and Bodies.  Note that an XML 1.0 Serialization
> cannot represent such names.
> Thank you.
> Noah
> [1] http://lists.w3.org/Archives/Public/xml-dist-app/2004Feb/0006.html
> [2] http://lists.w3.org/Archives/Public/xml-dist-app/2004Feb/0010.html
> [3] http://www.w3.org/2000/xp/Group/xmlp-issues#x458
> --------------------------------------
> Noah Mendelsohn
> IBM Corporation
> One Rogers Street
> Cambridge, MA 02142
> 1-617-693-4036
> --------------------------------------
Received on Thursday, 12 February 2004 08:54:41 UTC

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