Thank you!
What do you think of implementing the conversion from Language to unic_langid::LanguageIdentifier in this crate directly? To avoid an unnecessary dependency for downstream users, maybe we can keep unic_langid as an optional dependency (that is, a feature) and enable it on Hayagriva.

In addition, since this change is directly linked to typst/hayagriva#317, do you think you can adapt your PR on the hayagriva side to use these changes? You can use a git dependency on your biblatex fork for the time being so CI passes. The PRs can then be merged together.

Also applies some clippy fixes and uses Rust 1.85 in the CI, just as Typst and hayagriva.

Can you do this in a separate PR? Should be a speedy merge for that part then.

Thank you! What do you think of implementing the conversion from Language to unic_langid::LanguageIdentifier in this crate directly? To avoid an unnecessary dependency for downstream users, maybe we can keep unic_langid as an optional dependency (that is, a feature) and enable it on Hayagriva.

Can do. I like the feature idea.

In addition, since this change is directly linked to typst/hayagriva#317, do you think you can adapt your PR on the hayagriva side to use these changes? You can use a git dependency on your biblatex fork for the time being so CI passes. The PRs can then be merged together.

Yes, that was my next step. Just wanted to see the general reaction first. Thanks :)

Also applies some clippy fixes and uses Rust 1.85 in the CI, just as Typst and hayagriva.

Can you do this in a separate PR? Should be a speedy merge for that part then.

Good point. See #79

Just wanted to see the general reaction first.

Yeah, that's totally fair. Feel free to proceed with it then.

While we're at it, it might be a good idea to supersede this PR by adding the langid field: #55

I think the main difference from the language field is that only one can be specified, per the biblatex manual:

langid field (identifier)

The language id of the bibliography entry. The alias hyphenation is provided for backwards compatibility. The identifier must be a language name known to the babel/polyglossia packages. This information may be used to switch hyphenation patterns and localise strings in the bibliography.

While we're at it, it might be a good idea to supersede this PR by adding the langid field: #55

I think the main difference from the language field is that only one can be specified, per the biblatex manual:

langid field (identifier)
The language id of the bibliography entry. The alias hyphenation is provided for backwards compatibility. The identifier must be a language name known to the babel/polyglossia packages. This information may be used to switch hyphenation patterns and localise strings in the bibliography.

I added it. But should it also be a PermissiveType? Or are we as strict as the biblatex doc sounds?

I suppose an invalid langid would probably be problematic in a LaTeX document using biblatex, though I guess there could be different standards for this field. Maybe we can keep it permissive for now...

Sorry for the typos! It's all ready now

Thank you! 💙