28261 2015-03-22 00:12:40 +0000 [webvtt] WebVTT percentage digits? [I18N-ISSUE-427] 2015-11-23 18:40:29 +0000 1 1 1 Unclassified TextTracks CG WebVTT unspecified PC All RESOLVED FIXED widereview P2 normal --- 1 silviapfeiffer1 dave.null addison philipj silviapfeiffer1 singer www-international public-texttracks oldest_to_newest 118773 0 silviapfeiffer1 2015-03-22 00:12:40 +0000 Feedback by Addison Phillips from W3C I18N group: http://lists.w3.org/Archives/Public/public-tt/2015Mar/0060.html I18N comment: https://www.w3.org/International/track/issues/427 A WebVTT percentage is defined (in part) as: -- A WebVTT percentage consists of the following components: One or more ASCII digits. -- There is no upper length limit given for the integer portion of the percentage. Is this intentional? 118841 1 philipj 2015-03-23 03:17:08 +0000 I think the syntax should say that if interpreted as a real number, a WebVTT percentage must in the range 0..100, matching the parsing. This still makes 0000050% valid, which seems OK If we want it to not be valid we'd have to say that the first digit cannot be a zero. 118887 2 addison 2015-03-24 01:11:22 +0000 (In reply to Philip Jägenstedt from comment #1) > I think the syntax should say that if interpreted as a real number, a WebVTT > percentage must in the range 0..100, matching the parsing. > > This still makes 0000050% valid, which seems OK If we want it to not be > valid we'd have to say that the first digit cannot be a zero. A percentage can never be larger than 100%? Some CSS percentages make sense as larger numbers... just not as unbounded values. Anyway, this comment is just a grammatical nit. 118891 3 philipj 2015-03-24 07:22:45 +0000 Percentages can of course be any real number, but in WebVTT any attempt to set a percentage outside the range [0,100] is ignored, both in the parser and on the VTTCue interface. 118921 4 singer 2015-03-24 21:56:38 +0000 yes, but am I required to be able to parse 85.3629386749238923498798234923488021037096308373833999473908334903333222647850993774663884% for example? 118925 5 philipj 2015-03-25 04:34:59 +0000 Yes, the WebVTT parser will collect that whole string, however long, and interpreted as a real number. The result is only exposed as a double in the VTTCue interface, so there's no requirement to store it as an arbitrary precision number, though. 121496 6 silviapfeiffer1 2015-06-27 12:32:34 +0000 Prepared https://github.com/w3c/webvtt/pull/199 122258 7 silviapfeiffer1 2015-07-22 13:19:26 +0000 Patch landed 124277 8 addison 2015-11-23 18:40:29 +0000 satisfied.