Re: Gen-ART IETF Last Call review of draft-ietf-justfont-toplevel-03

"Chris Lilley" <chris@w3.org> Thu, 08 December 2016 18:45 UTC

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Date: Thu, 08 Dec 2016 13:45:28 -0500
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Subject: Re: Gen-ART IETF Last Call review of draft-ietf-justfont-toplevel-03
From: "Chris Lilley" <chris@w3.org>
To: "Dale R. Worley" <worley@ariadne.com>, "" <gen-art@ietf.org>, "" <draft-ietf-justfont-toplevel.all@ietf.org>, "" <ietf@ietf.org>
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On 2016-10-30 18:18:29, Dale R. Worley <worley@ariadne.com> wrote:

7.5. WOFF 1.0

Macintosh Universal Type Identifier code: "org.w3c.woff"

Is this part of a media type registration? (If so, is it required for
all "font" subtypes?)
Chris Lilley: 

I opened an issue on Macintosh type codes:
https://github.com/svgeesus/ietf-justfont/issues/26

There are two Apple-specific systems: the old four-character Macintosh Type Codes mentioned in the Media Types registration template, which were in use up to Mac OS 9 but are no longer used, and the newer Universal Type Identifiers used in OS X.

I raised the issue of which to use (on media-types@ietf.org)

and got a swift response from Ned Freed suggesting that the legacy Macintosh Type Codes were of little value, and that adding the current Macintosh  UTI was probably beneficial.

In response, I checked all the  Macintosh Type Codes in the current document; they all say "(no code specified)" which seems optimal.

I also looked at the Apple documentation for UTIs. There are two forms, the 'public' ones defined by Apple and the extensible, java-style reverse DNS ones for other organisations.
https://developer.apple.com/library/content/documentation/FileManagement/Conceptual/understanding_utis/understand_utis_conc/understand_utis_conc.html#//apple_ref/doc/uid/TP40001319-CH202-CHDHIJDE

There is a registry of the public ones, including font-related UTIs like public.truetype-font and so on
https://developer.apple.com/library/content/documentation/Miscellaneous/Reference/UTIRef/Articles/System-DeclaredUniformTypeIdentifiers.html#//apple_ref/doc/uid/TP40009259-SW1

I added these to the current document, so all font subtypes now have this information.

I have thus closed this issue.

--
Chris Lilley
@svgeesus
Technical Director @ W3C
W3C Strategy Team, Core Web Design
W3C Architecture & Technology Team, Core Web & Media