W3C home > Mailing lists > Public > public-tt@w3.org > December 2016

[ttml2] TTML Intermediate Document Type "non-hierarchical"

From: Nigel Megitt via GitHub <sysbot+gh@w3.org>
Date: Tue, 06 Dec 2016 15:19:07 +0000
To: public-tt@w3.org
Message-ID: <issues.opened-193799097-1481037545-sysbot+gh@w3.org>
nigelmegitt has just created a new issue for 

== TTML Intermediate Document Type "non-hierarchical" ==
The description of the TTML Intermediate Document Type in 
includes the text:

> all discrete animation, styling, and timing information is denoted 
in a non-hierarchical (flat), temporally linear manner.

>From the words "non-hierarchical (flat)" the reader may conclude that 
the intermediate document type is essentially a list, rather than a 
tree. However the ISD structure itself is in fact hierarchical, 
including potentially multiple regions, each of which contains a body 
that may contain many divs, etc. and each content element refers to a 
computed style set by id rather than inline.

I think the text is intended to imply that no style inheritance rules 
need be applied (for example), but it does not quite convey that, if 
it is indeed the intention. I suggest a second editorial pass on this 

Please view or discuss this issue at 
https://github.com/w3c/ttml2/issues/225 using your GitHub account
Received on Tuesday, 6 December 2016 15:19:26 UTC

This archive was generated by hypermail 2.4.0 : Friday, 17 January 2020 17:44:04 UTC