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Support for OpenType features #1211

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justvanrossum opened this issue Mar 17, 2024 · 0 comments

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justvanrossum commented Mar 17, 2024 •

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Support authoring of OpenType features
- Automatic features (kern, mark, ...)
- Manually authored features
Support proper shaping in the canvas, via harfbuzzjs and "small" TTFs built on the fly (server-side)

harfbuzzjs:

demo: https://harfbuzz.github.io/harfbuzzjs/
npm: https://www.npmjs.com/package/harfbuzzjs
home: https://github.com/harfbuzz/harfbuzzjs
to figure out: are glyph metrics hooks and encoding hooks available? update: they are not: Add hb_font_funcs setter functions harfbuzz/harfbuzzjs#95

It would be great if we could use (parts of) fontc for incremental compilation of the "small" TTF:

https://github.com/googlefonts/fontc/tree/main/fea-rs

"Small" TTF:

A TTF that contains just enough table data so harfbuzz can do shaping. No outline data, metrics provided by us via hooks.

justvanrossum added the enhancement label

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