The IESG wrote:
The IESG is considering the following document again now that
important dependencies are ready:
- 'INTERNET MESSAGE ACCESS PROTOCOL - SORT AND THREAD EXTENSIONS'
<draft-ietf-imapext-sort-19.txt> as a Proposed Standard
I've just reread section 7 of -19 and found some relatively minor things
that need fixing:
7. Internationalization Considerations
As stated in the introduction, the server SHOULD support the
[IMAP-I18N] COMPARATOR extension and follow its rules to perform
collations in the SORT and THREAD extensions.
As per your recent suggestion in the IMAPEXT WG, the COMPARATOR
extension was renamed to I18NLEVEL=2.
The last sentence in section 1 needs to be updated as well.
If the server does not support COMPARATOR, strings MUST be collated
according to the i;unicode-casemap collation described in
I think you also mean that support for at least I18NLEVEL=1 is REQUIREd.
As described in [IMAP-I18N], strings in charsets other than US-ASCII
and UTF-8 MUST be converted to UTF-8 and compared in ascending order
according to the selected or active collation algorithm. If the
server does not support the [IMAP-I18N] COMPARATOR extension, the
collation algorithm used is the "en;ascii-casemap" collation
described in [COMPARATOR].
The last sentence contradict the second paragraph quoted above. I think
you forgot to delete it in -19.
If for some reason you want to keep it, then please change
"en;ascii-casemap" to "i;ascii-casemap", as "en;ascii-casemap" is invalid.
I can recommend some replacement text, if you want.
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