[MlMt] Submailbox naming

[Philip Paeps]

On 2016-07-05 18:34:57 (+0530), Benny Kjær Nielsen 
<mailinglist at freron.com> wrote:
> It's non-trivial (and a bit hardcoded), but the Unread mailbox shows 
> how it can be done:
>
> 	${#source.path.noinbox} — ${#source.#name}
>
> The first part is the mailbox name, but without INBOX when it's the 
> kind of IMAP account in which all mailboxes are children of the INBOX. 
> The latter is the name of the account as seen in the IMAP account 
> editor.

Note that `${#source.path.noinbox}` only strips the INBOX from children 
of INBOX, it doesn't become the empty string for INBOX itself.  That's 
probably a reasonable implementation but it took me a bit of fiddling 
before I figure out that what I wanted for my setup is:

     ${#source-name:/downcase} ${#source.path.noinbox/INBOX//}

This piece of wisdom may be helpful to others with a similar setup to 
mine (and similar OCD). :)

Philip

-- 
Philip Paeps
Senior Reality Engineer
Ministry of Information