An RNG and XML Namespace Puzzle

[Dennis E. Hamilton]

How about

<grammar 
	xmlns="http://relaxng.org/ns/structure/1.0"
	datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes"
	xmlns:manifest="urn:oasis:names:tc:opendocument:xmlns:manifest:1.0">

<!-- ... -->

  	<attribute name="manifest:version">
		<value>1.2</value>
	</attribute>

Is that the same as a qualified-only attribute?


 - dennis
-----Original Message-----
From: eb2mmrt at gmail.com [mailto:eb2mmrt at gmail.com] On Behalf Of MURATA Makoto
Sent: Sunday, August 21, 2011 19:15
To: dennis.hamilton at acm.org
Cc: SC34 WG1 Zip Study Group; Alex Brown
Subject: Re: An RNG and XML Namespace Puzzle

<attribute ... ns="">...</attribute> allows unqualified attributes only.
<attribute .... ns="http://www.example.com">...</attribute> allows
qualified attributes
of the namespace "http://www.example.com" only.

Regards,
Makoto

2011/8/22 Dennis E. Hamilton <dennis.hamilton at acm.org>:
> What if every attribute pattern explicitly specifies an ns prefix?
>
>  - Dennis
>
> -----Original Message-----
> From: eb2mmrt at gmail.com [mailto:eb2mmrt at gmail.com] On Behalf Of MURATA Makoto
> Sent: Sunday, August 21, 2011 18:44
> To: dennis.hamilton at acm.org
> Cc: SC34 WG1 Zip Study Group; Alex Brown
> Subject: Re: An RNG and XML Namespace Puzzle
>
> If an attribute pattern does not explicitly specify the ns attribute,
> any attribute
> matching has to be unprefixed.
>
> Regards,
> Makoto
>
> 2011/8/22 Dennis E. Hamilton <dennis.hamilton at acm.org>:
>> Thank you, that is very helpful.
>>
>> My only remaining question:  What if an attribute *is* only defined with an ns prefix in the RNG.  Can an instance be unprefixed in any instance of an element where it is allowed?
>>
>>  - Dennis
>>
>> -----Original Message-----
>> From: eb2mmrt at gmail.com [mailto:eb2mmrt at gmail.com] On Behalf Of MURATA Makoto
>> Sent: Sunday, August 21, 2011 16:54
>> To: dennis.hamilton at acm.org
>> Cc: SC34 WG1 Zip Study Group; Alex Brown; MURATA Makoto (FAMILY Given)
>> Subject: Re: An RNG and XML Namespace Puzzle
>>
>> Dennis,
>>
>> I do not understand your question very well, but let me try
>> to explain two things separately.
>>
>> 1) XML namespaces
>>
>> A prefixed element or attribute belongs to the namespace bound
>> to that prefix.
>>
>> An unprefixed element belongs to the default namespace specified
>> by the xmlns="..." dcl (the default namespace).
>>
>> An unprefixed attribute does not belong to a namespace.
>>
>> 2)  RELAX NG
>>
>> The ns attribute specifies namespaces and it controls both
>> attribute and element patterns.  However, attribute patterns
>> and element patterns behave differently when they do not
>> have the ns attribute.  In the case of element patterns,
>> the ns attribute is borrowed from ancestor patterns.  Meanwhile,
>> in the case of attribute patterns, the ns attribute is assumed
>> to be "" and attributes matching the attribute patterns
>> do not belong to namespaces.
>>
>> http://relaxng.org/tutorial-20011203.html#IDAIGZR
>>
>> 2011/8/22 Dennis E. Hamilton <dennis.hamilton at acm.org>:
>>> I have a puzzle concerning the use of Namespace binding on attributes when the RNG schema specifies them.
>>>
>>> My assumption is that however the namespace is bound on the element having the attributes (i.e., by a default namespace declaration), the attributes still require explicit prefixes that are bound to the appropriate namespace.
>>>
>>> Put another way, I assume that there are no conditions where those attributes can occur without a bound prefix and, in particular, there is no understood use of the unprefixed-attributes as attributes of the element absent any declaration to that effect.
>>>
>>> I figure this list will be seen by enough who understand the RNG and XML and XML Namespace rules to find an answer.
>>>
>>> The reason I'm asking is the existence of test documents that include variations on this case.  In some cases, ODF consumers accept the unprefixed attribute names without ceremony.  I can't tell if that is correct because I have observed some of those consumers accepting what are clearly incorrect XML documents.  I am not so concerned that some consumers accept unprefixed attribute names.  I just want to know if that is within the letter of RNG validity.
>>>
>>>  - Dennis
>>>
>>> DETAILS
>>>
>>> The variability in my analysis is evident in the table on this page:
>>>
>>> <http://tools.oasis-open.org/version-control/svn/oic/TestSuite/trunk/odf12/NameSpaceResilience/NameSpaceResilience-Results.htm>
>>>
>>> The folder with all of the test documents, the XML files that shows the cases, and a summary description of the set of test cases is at
>>>
>>> <http://tools.oasis-open.org/version-control/svn/oic/TestSuite/trunk/odf12/NameSpaceResilience/>.
>>>
>>> The file NamSpaceResilience.txt summarizes what they are and what is expected with each one.
>>>
>>>
>>
>>
>>
>> --
>>
>> Praying for the victims of the Japan Tohoku earthquake
>>
>> Makoto
>>
>>
>
>
>
> --
>
> Praying for the victims of the Japan Tohoku earthquake
>
> Makoto
>
>



-- 

Praying for the victims of the Japan Tohoku earthquake

Makoto