All - Character case usage in language tag values

Issue #811 resolved
Michael Jones created an issue

Our drafts currently spell language tags with mixed lowercase and uppercase characters such as ja-Kana-JP and fr-CA. Given that "name#fr-CA" and "name#fr-ca" are different claims, we probably need to make explicit recommendations about what case langauge tag values should use. makes specific recommendations. We should probably call them out - in particular, that tag elements SHOULD be spelled as in the IANA registry at

Comments (2)

  1. Michael Jones reporter

    We will say that the language tags should only be spelled in the manner present in the registry, but that implementations should interpret values provided in a case insensitive manner.

  2. Michael Jones reporter

    Fixed #811 - Specifiy that language tag components should be spelled using the character cases registered in the IANA Language Subtag Registry. Fixed #812 - Clarified that language tag values used need not be unnecessarily specific.

    → <<cset a546da3168d7>>

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