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[Bug 17065] New: Say what the paragraph separators are for bidi

From: <bugzilla@jessica.w3.org>
Date: Tue, 15 May 2012 15:12:55 +0000
To: public-texttracks@w3.org
Message-ID: <bug-17065-5018@http.www.w3.org/Bugs/Public/>

           Summary: Say what the paragraph separators are for bidi
           Product: TextTracks CG
           Version: unspecified
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: WebVTT
        AssignedTo: ian@hixie.ch
        ReportedBy: simonp@opera.com
         QAContact: dave.null@w3.org
                CC: mike@w3.org, public-texttracks@w3.org

Apply the Unicode Bidirectional Algorithm's Paragraph Level steps to the
concatenation of the values of each WebVTT Text Object in nodes, in a
pre-order, depth-first traversal, excluding WebVTT Ruby Text Objects and their
descendants, to determine the paragraph embedding level of the first Unicode
paragraph of the cue. [BIDI]

As far as I can tell, the paragraph separators for the purpose of the
referenced step P1 are class B characters only. It would be nice to call it out

TR9 talks about "appropriate Newline Function" which, per 5.8 Newline
Guidelines in Unicode, is platform-dependent but the listed examples are all
class B characters. TR9 also talks about "higher-level protocol paragraph
determination" but WebVTT doesn't have those, I think. Hence, the paragraph
separators are the class B characters.

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Received on Tuesday, 15 May 2012 15:13:08 UTC

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