W3C home > Mailing lists > Public > www-style@w3.org > February 2010

Re: [css3-fonts] font-specific feature handling

From: David Singer <singer@apple.com>
Date: Thu, 25 Feb 2010 09:17:29 -0800
Cc: John Daggett <jdaggett@mozilla.com>, www-style <www-style@w3.org>
Message-Id: <025FD9B7-47C3-4D59-AD17-0EBA8473DCC2@apple.com>
To: Thomas Phinney <tphinney@cal.berkeley.edu>
So, option #5 might be "The requested variant applies to every font in the list, if it exists, otherwise it is ignored."
?

On Feb 25, 2010, at 9:12 , Thomas Phinney wrote:

> On Thu, Feb 25, 2010 at 8:56 AM, David Singer <singer@apple.com> wrote:
>> I assume that saying that variants apply to all the fonts that can support them or have them, does not work?
>> 
>> i.e. if SomePlatformFont also supports the variant, then use it, otherwise ignore the request.
>> 
>> Are the variants that specific to the fonts?
> 
> For some kinds of variants, they are. For example, OpenType "stylistic
> sets" (ssXX) and stylistic alternates (salt) are both pretty
> arbitrary, unknown (from a programmatic POV) variants  they're
> "font-specific." Obviously things like standard ligatures, small caps,
> oldstyle figures and superscripts are pretty reliable across-fonts:
> "font-agnostic."
> 
> I'm not that excited about option #4, as it makes it harder to use
> font-specific formatting with platform fonts.
> 
> For known features, one can pretty easily categorize them (or almost
> all) as font-specific or font-agnostic.
> 
> Cheers,
> 
> T

David Singer
Multimedia and Software Standards, Apple Inc.
Received on Thursday, 25 February 2010 17:18:02 GMT

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