On Jul 3, 2013, at 10:45 PM, Michael Good wrote:
> I'm not sure how OpenType ligatures work. If a program is going to see an mp ligature, for instance, as a separate code point, that code point needs to be standardized, not left up to the font designer's discretion.
No code point will be left to the font designer's discretion. If I recall correctly, each of these additional code points for reaching ligated or otherwise combined glyphs directly will be part of the standard also.
> It seems similar to the convenience of having accent-staccato characters, which are in SMuFL 0.4 even though it's a combination of accent and staccato characters.
If the multiple-letter dynamics ligatures in particular don't have such direct code points, it's because their ligation is pure aesthetics, not a technical requirement: in absence of any text shaping support the <mezzo, forte> sequence will display just fine, whereas the <accent, staccato above> sequence would not be formed as expected.
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