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[ttml1] Use of attributes in TTML namespace but defined in TTML1

From: Andreas Tai via GitHub <sysbot+gh@w3.org>
Date: Sat, 22 Jul 2017 09:34:35 +0000
To: public-tt@w3.org
Message-ID: <issues.opened-244836488-1500716072-sysbot+gh@w3.org>
tairt has just created a new issue for https://github.com/w3c/ttml1:

== Use of attributes in TTML namespace but defined in TTML1 ==
Content models of TTML elements are defined as Element Information Items and represented in XML. One example is the content model of the `style` element:

  style = IDREFS
  xml:id = ID
  xml:lang = string
  xml:space = (default|preserve)
  {any attribute in TT Style namespace}
  {any attribute not in default or any TT namespace}>
 Content: EMPTY
The content models give a "general allowance" to use attributes of a specific namespace. In the above example, any attribute that is in the TT Style namespace ("http://www.w3.org/ns/ttml#styling") can be used. 

My question is, if this is restricted to just the attributes of "http://www.w3.org/ns/ttml#styling" that are defined in TTML1 (see [Section 5.3.1 of TTML1, Table 5](https://www.w3.org/TR/ttaf1-dfxp/#core-vocabulary-overview)), if also attributes are allowed that have been defined for the TTML Style namespace in a later publication of W3C (e.g. TTML2) or if from the element type defintion it doesn't matter where it the attribute is defined, it just needs to be in the TTML Style namespace. 


Please view or discuss this issue at https://github.com/w3c/ttml1/issues/251 using your GitHub account
Received on Saturday, 22 July 2017 09:34:36 UTC

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