[ttml2] Constrain certain descendant content in ruby container.

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

== Constrain certain descendant content in ruby container. ==
Proscribe the following from appearing in a ruby container:

* use of span children of container that do not specify a ruby style, i.e., that do not play a role in ruby structure; if present, then such span is ignored for presentation purposes;
* use of #PCDATA children of container, baseContainer, and textContainer; i.e., permit #PCDATAA only in base, text, and delimiter; if used, then ignore for presentaion purposes;
* use of br element in ruby or its descendants, and, if used, treat as normal (collapsible) whitespace;
* use of U+2028 (LINE SEPARATOR) and U+2029 (PARAGRAPH SEPARATOR) in ruby or its descendants, and, if used, they are interpreted as normal (collapsible) whitespace.

Editorial notes from 2015-02-18.

Please view or discuss this issue at https://github.com/w3c/ttml2/issues/372 using your GitHub account

Received on Monday, 5 June 2017 00:38:12 UTC