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[css-fonts] updated wording for subscript/superscript glyph synthesis

From: John Daggett <jdaggett@mozilla.com>
Date: Wed, 28 Oct 2015 13:34:19 +0900
Message-ID: <CALYZoVPu2R=CY6E3Q+bQoME2rbzqk8QreOF_s6agfGazg2uaaw@mail.gmail.com>
To: www-style <www-style@w3.org>
I've pushed a minor edit to the CSS Fonts spec that adjusts the requirement
for user agents to use OS/2 subscript/superscript metrics for a given font
when synthesizing superscript/subscript glyphs.

When implementing font-variant-position in Firefox, I ran into the problem
that these font metrics are often defined oddly or incorrectly. So I've
relaxed the wording to simply require user agents to synthesize
subscript/superscript glyphs, along with a note desribing the problems
associated with the OS/2 metrics.


John Daggett
Received on Wednesday, 28 October 2015 04:34:50 UTC

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