On Fri, 2008-10-31 at 17:51 +0200, Timo Sirainen wrote: > LIST % -> List "foo" as non-existing > LIST foo -> List "foo" as non-existing > LIST * -> List "foo/bar" only
There are also some truly horrible cases. For example: 1 list "" foo* * LIST (\HasNoChildren) "." "foo.foo.foo" * LIST (\HasNoChildren) "." "foo.bar.baz" 1 ok 2 list "" f*o.% * LIST (\HasNoChildren) "." "foo.foo.foo" * LIST (\Noselect \HasChildren) "." "foo.bar" 2 OK List completed. 3 list "" f*r * LIST (\Noselect \HasChildren) "." "foo.bar" 3 OK List completed. As you can see, the non-existing "foo.foo" isn't returned because its child "foo.foo.foo" also matches the pattern and is returned. But the non-existing "foo.bar" is returned because its children don't match the pattern. It took me forever to get all this stuff working right with Maildir++. :) I think it would be possible to implement the same somewhat easily in ACL code: 1. When ACL code sees that a non-existing mailbox is to be returned, find out if there are any patterns that match the mailbox and that ends with "*" character. If yes, don't return the mailbox (because its children will be returned anyway). If not: 2. Start a new mailbox listing that lists children of the non-existing mailbox (mailbox/*). If you find: a) A visible mailbox that matches the original patterns -> don't return the original non-existing mailbox (since its child will be returned later) b) No visible mailboxes -> don't return the original non-existing mailbox c) Fallback to returning the non-existing mailbox The same logic should also be used when determining if shared namespace prefixes should be returned (I think ACL code can do that too?) Also that code should work properly when mailbox names contain "*" or "%" characters. Basically it means that when generating the mailbox/* pattern replace all "*" chars with "%" chars in the mailbox name and then later when going through the results skip over everything that doesn't begin with the real mailbox name.
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