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Subject: [ebxml-msg] Please post


Jeffrey:

Please post the attached file to

http://www.oasis-open.org/committees/ebxml-msg/schema/draft-msg-header-02.xs
d

Thanks,
-Arvola

-----Original Message-----
From: David Fischer <david@drummondgroup.com>
To: Arvola Chan <arvola@tibco.com>
Date: Thursday, November 01, 2001 6:12 AM
Subject: RE: [ebxml-msg] xml namespace


>Arvola,
>
>Since the xml:lang attribute is optional, can we leave the xmlns:xml=...
out and
>go ahead and post the new schema?  I will tell the developers who are
waiting,
>to leave the attribute off.  Will this work for now while we find a
solution?
>
>Regards,
>
>David.
>
>-----Original Message-----
>From: Arvola Chan [mailto:arvola@tibco.com]
>Sent: Wednesday, October 31, 2001 5:27 PM
>To: scottv@tibco.com
>Subject: Fw: [ebxml-msg] xml namespace
>
>
>Hi Scott:
>
>Can you please help to answer the question of whether the following
>declaration
>
>    xmlns:xml="http://www.w3.org/XML/1998/namespace"
>
>is necessary in an XML schema that wants to use the xml:lang attribute?
>
>Attached is the schema downloaded from the above URL. It clearly indicates
>that the xml: namespace prefix needs to be declared and that the namespace
>needs to be imported into the target namespace.
>
>On the other hand, both Internet Explorer and XML Authority choke on the
>
>    xmlns:xml="http://www.w3.org/XML/1998/namespace"
>
>declaration. The spec at http://www.w3.org/TR/REC-xml-names/
>also suggests that the xml: prefixed namespace should have been defined
>implicitly.
>
>Thanks,
>-Arvola
>
>-----Original Message-----
>From: David Fischer <david@drummondgroup.com>
>To: Arvola Chan <arvola@tibco.com>; Cliff Collins <collinsc@sybase.com>;
>ebxml-msg <ebxml-msg@lists.oasis-open.org>
>Date: Wednesday, October 31, 2001 2:36 PM
>Subject: RE: [ebxml-msg] xml namespace
>
>
>Arvola,
>
>I thought as you did, but then I went to the namespace (click on the link)
>and I
>found this:
>
><documentation>This schema defines attributes and an attribute group
>suitable
>for use by schemas wishing to allow xml:lang or xml:space attributes on
>elements
>they define. To enable this, such a schema must first declare the XML
>namespace,
>and then import this schema for the XML namespace, e.g. as follows: <schema
>. .
>. xmlns:xml="http://www.w3.org/XML/1998/namespace"> . . . <import
>namespace="http://www.w3.org/XML/1998/namespace"
>schemaLocation="http://www.w3.org/2000/10/xml.xsd"/> Subsequently,
qualified
>reference to either of the attributes or the group defined below will have
>the
>desired effect, e.g. <type . . .> . . . <attributeGroup
>ref="xml:specialAttrs"/>
>will define a type which will schema-validate a instance element with both
>xml:space and xml:lang attribute</documentation>
>
>The documentation above says ". . .such a schema must first declare the XML
>namespace. . ."
>
>So now I am confused.  Which way is right?  If some parsers understand
>"xml:"
>and some don't, then this won't work.
>
>Regards,
>
>David.
>
>
>-----Original Message-----
>From: Arvola Chan [mailto:arvola@tibco.com]
>Sent: Wednesday, October 31, 2001 2:44 PM
>To: David Fischer; Cliff Collins; ebxml-msg
>Subject: Re: [ebxml-msg] xml namespace
>
>
>More excerpt from http://www.w3.org/TR/REC-xml-names/
>
>"
>Namespace Constraint: Prefix Declared
>The namespace prefix, unless it is xml or xmlns, must have been declared in
>a namespace declaration attribute in either the start-tag of the element
>where the prefix is used or in an an ancestor element (i.e. an element in
>whose content the prefixed markup occurs). The prefix xml is by definition
>bound to the namespace name http://www.w3.org/XML/1998/namespace. The
prefix
>xmlns is used only for namespace bindings and is not itself bound to any
>namespace name.
>"
>
>My reading of the above paragraph is that it is not necessary to add
>the line
>
>    xmlns:xml="http://www.w3.org/XML/1998/namespace"
>
>to the schema.
>
>-Arvola
>
>
>-----Original Message-----
>From: Arvola Chan <arvola@tibco.com>
>To: David Fischer <david@drummondgroup.com>; Cliff Collins
><collinsc@sybase.com>; ebxml-msg <ebxml-msg@lists.oasis-open.org>
>Date: Wednesday, October 31, 2001 12:35 PM
>Subject: Re: [ebxml-msg] xml namespace
>
>
>>David:
>>
>>On the contrary, I have experienced with a number of XML parsers
>>and validators that would choke on such a declaration. These include
>>Microsoft's Internet Explorer and TIBCO's Extensibility XML
>>Authority/Instance products.
>>
>>http://www.w3.org/TR/REC-xml-names/ states:
>>
>>Namespace Constraint: Leading "XML"
>>Prefixes beginning with the three-letter sequence x, m, l, in any case
>>combination, are reserved for use by XML and XML-related specifications.
>>
>>When I add the suggested line to the schema, I get the following
>>error from TIBCO Extensibility XML Authority:
>>
>>Parser Error. 'Illegal Namespace prefix: "xml".'
>>Namespace prefix should not start with 'xml' - that is reserved.
>>
>>Let's get a general agreement on whether the suggested line is needed
>>before posting the revised schema to the designated location.
>>
>>Regards,
>>-Arvola
>>
>>-----Original Message-----
>>From: David Fischer <david@drummondgroup.com>
>>To: Cliff Collins <collinsc@sybase.com>; ebxml-msg
>><ebxml-msg@lists.oasis-open.org>; Arvola Chan <arvola@tibco.com>
>>Date: Wednesday, October 31, 2001 12:18 PM
>>Subject: RE: [ebxml-msg] xml namespace
>>
>>
>>>Arvola, could you please add this to the schema?
>>>
>>> xmlns:xml="http://www.w3.org/XML/1998/namespace"
>>>
>>>Thanks,
>>>
>>>David Fischer
>>>Drummond Group.
>>>
>>>-----Original Message-----
>>>From: Cliff Collins [mailto:collinsc@sybase.com]
>>>Sent: Wednesday, October 31, 2001 1:28 PM
>>>To: ebxml-msg
>>>Subject: [ebxml-msg] xml namespace
>>>
>>>
>>>uri for xml namespace
>>>
>>>
>>>http://www.w3.org/XML/1998/namespace
>>>
>>>Cliff Collins
>>>mailto:collinsc@sybase.com
>>>URL: http://www.skyweyr.com/cliff
>>>(510)922-5204
>>>
>>>
>>>
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>>>
>>
>
>
>
>----------------------------------------------------------------
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draft-msg-header-02.xsd



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