ISSUE-117: add 'use' value for value attribute of ttp:{feature,extension}

add 'use' value for value attribute of ttp:{feature,extension}

State:
CLOSED
Product:
TTML 1.0
Raised by:
Glenn Adams
Opened on:
2009-05-28
Description:
add 'use' value to value attribute for ttp:{feature,extension} elements in order to distinguish between case where profile mandates support for feature (extension) and case where profile both mandates support and also enables (activates) use of the feature; therefore, 'use' means the same as 'required" but additionally enables (turns on) the feature;

this addition is necessitated by addition of the #lineBreak-uax14 feature which if specified as 'required' means that implementation must support semantics (but not necessarily use) this feature, but if specified as 'use' means both that it must support the semantics *and* must use (turn on) this feature (use of UAX14 line break algorithm);
Related Actions Items:
No related actions
Related emails:
  1. ISSUE-117: add 'use' value for value attribute of ttp:{feature,extension} [DFXP 1.0] (from sysbot+tracker@w3.org on 2009-05-28)

Related notes:

resolved in TTAF1-DFXP WD Editor's Copy Update - 20090529

Glenn Adams, 29 May 2009, 04:39:03

Changelog:

Created issue 'add 'use' value for value attribute of ttp:{feature,extension}' nickname owned by Glenn Adams on product DFXP 1.0, description 'add 'use' value to value attribute for ttp:{feature,extension} elements in order to distinguish between case where profile mandates support for feature (extension) and case where profile both mandates support and also enables (activates) use of the feature; therefore, 'use' means the same as 'required" but additionally enables (turns on) the feature;

this addition is necessitated by addition of the #lineBreak-uax14 feature which if specified as 'required' means that implementation must support semantics (but not necessarily use) this feature, but if specified as 'use' means both that it must support the semantics *and* must use (turn on) this feature (use of UAX14 line break algorithm);' non-public

Glenn Adams, 28 May 2009, 06:46:48

Status changed to 'closed'

Glenn Adams, 29 May 2009, 04:39:03


David Singer <singer@apple.com>, Nigel Megitt <nigel.megitt@bbc.co.uk>, Chairs, Thierry Michel <tmichel@w3.org>, Philippe Le H├ęgaret <plh@w3.org>, Staff Contacts
Tracker: documentation, (configuration for this group), originally developed by Dean Jackson, is developed and maintained by the Systems Team <w3t-sys@w3.org>.
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