- From: Nigel Megitt <nigel.megitt@bbc.co.uk>
- Date: Fri, 25 Jan 2019 15:06:03 +0000
- To: Timed Text Working Group <public-tt@w3.org>
- Message-ID: <5941EAB8802D6745A7D363D7B37BD1F7AD8C784B@bgb01xud1012>
All (but probably Glenn is best placed to answer this right now), I'm considering making a TTML2 processor profile that adds an extension feature which imposes a restriction on #timeBase-media. This gives me a syntactic headache concerning xml:base, which is not permitted on the extension element but is permitted on its ancestor extensions element. How do I specify that the value of @restricts is relative to the TTML namespace and the content of the extension element is relative to another (local) namespace? If I specify: <extensions xml:base="urn:my:namespace"> <extension restricts="#timeBase-media">#my-timebase-extension</extension> </extensions> it doesn't look right because it is not clear which namespace the #timeBase-media feature is in, or it may be assumed incorrectly to be the namespace specified by the parent element's @xml:base. kind regards, Nigel ---------------------------- http://www.bbc.co.uk This e-mail (and any attachments) is confidential and may contain personal views which are not the views of the BBC unless specifically stated. If you have received it in error, please delete it from your system. Do not use, copy or disclose the information in any way nor act in reliance on it and notify the sender immediately. Please note that the BBC monitors e-mails sent or received. Further communication will signify your consent to this. ---------------------
Received on Friday, 25 January 2019 15:06:29 UTC