Re: [css3-fonts] unicode-range and unicode normalization

On 07/12/2010 12:06 AM, Anne van Kesteren wrote:
> On Mon, 12 Jul 2010 06:51:00 +0200, John Daggett <jdaggett@mozilla.com>
> wrote:
>> Yuzo Fujishima wrote:
>>> I believe it would help readers if the specification explicitly
>>> states how characters must be normalized, how glyphs are chosen, and
>>> what is left for UA's discretion.
>>
>> I agree. It's not a simple task so if you have specific suggestions
>> for wording that would be very helpful.
>
> I don't think we currently require normalization anywhere else. In fact,
> there is probably JavaScript code out there that assumes nothing is
> normalized.

That's true, but font-matching is not quite as simple as matching
string characters against a set of available Unicode characters.
Each grapheme cluster needs to be rendered entirely in a single
font. If different characters in the grapheme cluster map to
different fonts, it needs to be clear how to resolve to a single
font.

~fantasai

Received on Monday, 12 July 2010 07:29:58 UTC