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Re: [webvtt] Normalization and string identity issues [I18N-ISSUE-425]

From: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
Date: Sun, 22 Mar 2015 11:09:18 +1100
Message-ID: <CAHp8n2mY_EU5dEJ1kn9b0ToosXcaDROQ3MCB1dtP+w_VGPfugg@mail.gmail.com>
To: "Phillips, Addison" <addison@lab126.com>
Cc: "public-tt@w3.org" <public-tt@w3.org>, "public-i18n-core@w3.org" <public-i18n-core@w3.org>
Registered in https://www.w3.org/Bugs/Public/show_bug.cgi?id=28259 for
feedback by TextTracks CG.

Best Regards,
Silvia.

On Sat, Mar 21, 2015 at 7:25 AM, Phillips, Addison <addison@lab126.com> wrote:
> I18N comment: https://www.w3.org/International/track/issues/425
>
> http://www.w3.org/TR/webvtt1/#webvtt-file-structure
>
> Various constructs such as 'cue identifier' are described as being:
>
> --
> ...any sequence of one or more characters not containing the substring "-->"...
> --
>
> The document makes understood that this is a sequence of Unicode characters. However, it leaves open the question of whether different Unicode character sequences that represent the same semantic string identifier (see: Charmod [1] and Charmod-Norm [2]) are considered "the same" or not. As currently written, different UTF-8 byte sequences are considered distinct.
>
> We would suggest that identifiers that use distinct code point sequences are considered distinct (that is, that you are what we call a "non-normalizing Specification"), which suggests that you include at least a health warning about the dangers of using different character sequences.
>
> [1] http://www.w3.org/TR/charmod/
> [2] http://www.w3.org/TR/charmod-norm/
> Particularly: http://www.w3.org/TR/charmod-norm/#formal-language and http://www.w3.org/TR/charmod-norm/#non-normalizing
>
> ===
>
> Addison Phillips
> Globalization Architect (Amazon Lab126)
> Chair (W3C I18N WG)
>
> Internationalization is not a feature.
> It is an architecture.
>
Received on Sunday, 22 March 2015 00:10:05 UTC

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