Any desire to support WOFF?

[dpranke]

Hi,

I'm working on a project (not public yet) that is using typesetting, and I've found it to be great so far.

However, I need to be able to use WOFF fonts in addition to OpenType Fonts.

I am just starting to learn more about the different formats in detail, but since the two formats are not that different, this should be a relatively doable project (which I would be interested in working on).

Is there any desire to support WOFF here in some form? Looking through past issues, I saw no discussion of this, but apologies if this has come up before and been rejected. I am aware of tdewolff/font as a possible alternative but I like go-text/typesetting's lack of dependencies. Then again, not knowing any better, perhaps I would just end up recreating them as part of this work? Any advice would be appreciated.

[benoitkugler]

Hi,

Happy to read this project is usefull to you !

WOFF fonts are supported, see font/opentype/reader_woff.go. Have you experienced a pratical issue ? Feel free to post code samples or discribe any problem you may have.

Note : the WOFF2 format is another beast, since it requires a Brotli decoder, not supported in the standard library.

[dpranke]

Ah, I had not dug into the code deeply enough to find that file. That's great!

You're right about Brotli, of course. From my quick skimming of the WOFF2 spec today it almost looks like WOFF2 is designed to be decoded/translated into a WOFF file which is then handled normally, so perhaps that is a route to take. I'll look into that first before bothering to try and change anything here.

That said, though, while I'd totally understand (and agree with) the idea that you don't want this repo to have a dependency on a Brotli decoder, would you be interested in tweaking the APIs (e.g., to font/opentype/reader.go) to be able to dynamically register a WOFF2 decoder, if it made sense to do so? (I'm not even sure if it'd be worth it given what I wrote above, though).