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Re: [Justfont] font top-level type: Outlines "in various combinations"

Chris Lilley <chris@w3.org> Tue, 09 February 2016 22:08 UTC

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Date: Tue, 09 Feb 2016 23:08:36 +0100
From: Chris Lilley <chris@w3.org>
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To: "Levantovsky, Vladimir" <Vladimir.Levantovsky@monotype.com>, "justfont@ietf.org" <justfont@ietf.org>
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Subject: Re: [Justfont] font top-level type: Outlines "in various combinations"
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Hello Vlad,

Monday, February 8, 2016, 5:38:48 AM, you wrote:

> I'd suggest that we should say that
> multiple values of the parameter in question can be defined as a
> comma-separated list of values without imposing any particular
> restrictions on what these values can be or how different types of
> outlines can be combined. Whether there is a valid use case to have
> only SVG outlines present, or if there is (is not) a use case that
> combines TTF and CFF outlines shouldn't be decided here, I'd rather
> allow the parameter to reflect what the font data provides.

A good point.

I have added wording to that effect:

  "this optional parameter is a list containing one or more items, separated by
   commas, with optional whitespace. Order in the list is not significant."

Does that sound okay or does it need more EBNF precision, like

  separator:  wsp* "," wsp*

The same wording occurs in several places: here are the exact commits

  https://github.com/svgeesus/ietf-justfont/commit/a1d2709bd29d59f4a007bb2819494e66246c51f5
  https://github.com/svgeesus/ietf-justfont/commit/6e7d2612e4fe5a6c0b97b4f4db2b5509b5fb0edf
  https://github.com/svgeesus/ietf-justfont/commit/34a37f5a5f8ce13f2528384b2e9dfaae3cb378c9

-- 
Best regards,
 Chris  Lilley
 Technical Director, W3C Interaction Domain

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