(I18n) Missing hreflang attribute

[iherman]

The i18n self test says:

Attributes that express the language of external resources should not use the HTML lang and XML xml:lang language attributes, but should use a different attribute when they represent metadata (which indicates the intended use of the resource rather than the language of a specific range of text). more

This may be relevant for the link element. Should we add a hreflang attribute (like in HTML)?

[iherman]

The issue was discussed in a meeting on 2021-02-04

List of resolutions:

• Resolution No. 6: Close 1488, accept PR 1497

View the transcript

6. Missing hreflang attribute

See github issue #1488.

Dave Cramer: 1488
… missing hreflang attribute
… see issue
… there is a PR from Matt

See github pull request #1497.

Dave Cramer: PR 1497
… this is designed for the links in the package file
… if we're linking to external metadata, we can determine the language of the file
… consistent with other vocabularies
… this would be new, and wouldn't break anything
… any comments?

Ben Schroeter: Trying to understand the usage of this?

Dave Cramer: Say you have a multi-lingual epub, multiple metadata records
… norwegian canadian dictionary that has one record in norwegian and one in canadian english
… if the UI is set in one language, it can know to present the correct metadata to the user
… the RS doesn't have to determine the vocab from the resource, it can determine before download
… a hint

Ben Schroeter: Ok

Dave Cramer: I'm not aware of a RS that does this

Brady Duga: You can link to external metadata records? /sarcasm

Dave Cramer: We can write a test for it, but no RS will test it

Ben Schroeter: And where will you find a Norwegian-Canadian dictionary...

Brady Duga: This PR does add another untestable conformance requirement

Dave Cramer: I feel we're a little bit stuck here
… it's an i18n best practice
… if we say we're going to have linked metadata, we should have this
… we put this in, we get tests, the concept gets marked as at-risk at CR
… I think we should accept the PR, then see what testing shows us

Proposed resolution: Close 1488, accept PR 1497 (Wendy Reid)

Resolution #6: Close 1488, accept PR 1497

Dave Cramer: Progress!
… on i18n issues at least
… thanks everyone

Teenya Franklin: goodnight

Dave Cramer: see you all in the comment section

Dave Cramer: RRSAgent: draft minutes

Dave Cramer: RRSAgent: bye

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[murata2makoto]

I do not like the hreflang attribute. Metadata or HTTP headers for the referenced contents should specify the used language.

I know that this is not always possible. But hreflang is not a solution but a hack.