[ttml2] Refactor #rubyAlign features.

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

== Refactor #rubyAlign features. ==
The current definition of `#rubyAlign` related features is quite awkward, and needs refactored as:

`#rubyAlign-no-withBase` = ruby align values except `withBase`
`#rubyAlign-withBase` = ruby align value `withBase`
`#rubyAlign` = `#rubyAlign-no-withBase` + `#rubyAlign-withBase`

See also 

Please view or discuss this issue at https://github.com/w3c/ttml2/issues/793 using your GitHub account

Received on Thursday, 24 May 2018 00:44:12 UTC