[ttml2] Clarify information sets cardinality of attributes

nigelmegitt has just created a new issue for https://github.com/w3c/ttml2:

== Clarify information sets cardinality of attributes ==
Many elements permit `{any attribute in TT Style Namespaces}` or similar language. This test was taken from the `initial` element, as an example. Whereas for `Content` the cardinality is indicated, it is omitted for attributes. This could lead to the unintended interpretation that the text permits only a single attribute in the given namespace, rather than any number of such attributes.

Raising this and marking as agenda for discussion on the next call. Is there anything we can do to clarify this editorially in the TTML2 and TTML1 3rd Edition specs? For example append a `*` after the curly braces.

Please view or discuss this issue at https://github.com/w3c/ttml2/issues/879 using your GitHub account

Received on Tuesday, 3 July 2018 16:31:32 UTC