Re: [core] [Last-Call] Call for comments on draft-ietf-core-problem-details-07

[Randy Presuhn <[e-mail]>]

Hi -

On 2022-06-30 4:31 AM, tom petch wrote:
...
> Second, the 'NOTE' seems at variance with RFC5646 in that the RFC 
> specifies that they are case insensitive.  YANG is in most respects a 
> lower case language and it has the concept of canonical form so my 
> understanding of RFC5646 is that the canonical form, in any YANG 
> context, would be lower case, which is not what the appendix says (not 
> that the appendix explicitly considers YANG but I expect tusers of this 
> I-D will).
...

However, I'd draw your attention to
https://datatracker.ietf.org/doc/html/rfc5646#section-2.1.1

Requiring comparisons to be case-insensitive is not the same thing
as requiring the canonical form to be lower case, particularly if
these tags might be presented to humans somewhere along the way.

Randy