Ihor Radchenko <yantar92@posteo.net> writes:

> Jack Kamm <jackkamm@gmail.com> writes:
>
>>> The API of `org-datetree--find-create' is generally very limiting.
>>> It would be nice to come up with something less limiting.
>>
>> Thanks for the feedback -- I'll start working on something along these
>> lines.  Though this might take me a little while since the holiday is
>> ending soon :''-(
>
> Maybe the holiday is just beginning this year? Bumping this thread just
> in case ;)

I attach a pair of patches for this.

The first patch is just a prelude, it adds a couple unit tests for bugs
I noticed in the current implementation.

The second patch is the main work.  It is a substantial reworking of
org-datetree.el that allows for arbitrary number of datetree levels.
For capture datetrees, :tree-type can now be any subset of (year quarter
month week day), and a datetree with the corresponding levels will be
constructed.  Another notable addition is the elisp function
`org-datetree-find-create-hierarchy', which should allow constructing
general datetrees for other calendar systems (e.g. lunar calendars,
university academic calendars, retail 4-4-5 calendars, etc).