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Re: (PFWG) ACTION-211 Query re: SVG Request for @order for Access Module

From: Shane McCarron <shane@aptest.com>
Date: Sun, 10 Aug 2008 08:18:24 -0500
Message-ID: <489EEAA0.5000201@aptest.com>
To: Doug Schepers <schepers@w3.org>
CC: "Gregory J. Rosmaita" <oedipus@hicom.net>, w3c-wai-pf@w3.org, public-xhtml2@w3.org, w3c-wai-ua@w3.org, public-svg-wg@w3.org, wai-liaison@w3.org

I appreciate what you are trying to accomplish, and I will leave that 
suggestion to the working group.  I have a strong bias against 
encouraging the behavior your are trying to permit.  This is an XML 
module, and XML does not permit duplicate IDs.  Period.  It would be 
inappropriate to use this module as written in any non-XML grammar.  And 
even in such a grammar (e.g. HTML4) duplicate IDs are not permitted.  So 
I don't see why defining the behavior and therefore encouraging people 
to violate the rules is a good idea.  If it were up to me, I would 
codify that duplicate IDs are an error, and that the behavior of an 
implementation in the face of them is unspecified (formal, IEEE term... 
means its a bad idea, don't do it.  won't work portably).

But, like I said, I value your input and know that I am dogmatic in this 
respect.  So I will leave it to the working group.

Doug Schepers wrote:
> Hi, Shane-
>
> Shane McCarron wrote (on 8/9/08 11:10 AM):
>> Okay - I have integrated a slightly changed version of this.  It is 
>> in the latest editor's snapshot. 
>
> Thanks, looks great.
>
> I do have one nitpick:
>
> "Also note: When processing an invalid document, if there are 
> duplicate ids, element groups based on targetid values may contain 
> multiple values, just like those of targetrole values."
>
> Could be:
>
> "Also note: When processing a document with duplicate ids, element 
> groups based on targetid values may contain multiple values, just like 
> those of targetrole values."
>
> This is more descriptive of the actual condition.  There is no need to 
> point out that a document with duplicate ids may be invalid; if the 
> Access module is used in a language where duplicate ids are allowed, 
> then that document would not be invalid, so making this change to the 
> spec ensures the broad applicability of the Access module across 
> languages, and is good future-proofing.
>
> Regards-
> -Doug Schepers
> W3C Team Contact, WebApps, SVG, and CDF

-- 
Shane P. McCarron                          Phone: +1 763 786-8160 x120
Managing Director                            Fax: +1 763 786-8180
ApTest Minnesota                            Inet: shane@aptest.com
Received on Sunday, 10 August 2008 13:19:20 GMT

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