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- A change is forthcoming to address lists in IMAP, and the corresponding
- structures in c-client, to provide a more useful representation of the
- envelope data for Pine. This change is largely upwards-compatible, but it may
- trip up some unprepared software. My ms and MailManager applications were.
-
- Because of its possible consequences, these changes will not appear until
- version 3.0 of the IMAP toolkit, so 2.4 is frozen as it stands now. I don't
- plan on releasing 3.0 of the IMAP toolkit until after the next release of Pine
- is released.
-
- The change makes it possible for an address structure to have a NIL host name
- and mailbox name. This is being used to support group syntax. An address
- structure with a non-NIL mailbox name but a NIL host name indicates the start
- of a group; one with both NIL indicates the end of a group. For example, the
- address list:
- To: Friends: Bob@FOO, Lisa@Bar;, Romans: Julius@CAESAR;, Joe@GARP
- will now be structured in IMAP as:
- ((NIL NIL Friends NIL)
- (NIL NIL Bob FOO)
- (NIL NIL Lisa Bar)
- (NIL NIL NIL NIL)
- (NIL NIL Romans NIL)
- (NIL NIL Julius CAESAR)
- (NIL NIL NIL NIL)
- (NIL NIL Joe GARP))
- Previously, it was:
- ((NIL NIL Bob FOO)
- (NIL NIL Lisa Bar)
- (NIL NIL Julius CAESAR)
- (NIL NIL Joe GARP))
- that is, the group information was ignored.
-
- More changes of this sort are likely in the near future to introduce netnews
- newsgroups. c-client software which religiously use c-client's routines will
- upgrade automatically on a relink. [ms and MailManager didn't, but they do
- now!]
-
- Implementors of c-client based software should look for cases where their
- program outputs data from an ADDRESS structure (as opposed to calling the
- routines in c-client). IMAP implementors should look for cases where they
- assume the mailbox or host name are non-NIL.
-
- -- Mark --
-
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-