[HarfBuzz] Itemising Japanese scripts

[Richard Wordingham]

On Mon, 25 Apr 2016 07:02:10 -0700
"Muller, Eric" <emuller at amazon.com> wrote:

> Even if there are no typographic interaction between kanji, katakana
> and hiragana glyphs, there is a need to apply OT features. It's hard
> to imagine that having ~5 character runs can be as efficient as
> applying them to whole paragraphs. On that basis, I have asked for a
> long time for an OT equivalent of Jpan (which does not preclude the
> presence of hani and kana).

How does that benefit you over having the OT script kana with the rule
that its lookups must be able to support Han if the latter's characters
are in the font?

Richard.