backtracking attempt for window view creation. Code would be ugly, so dont implement.

gistfile1.lua

-- Simplified version only taking into account idenically sized splits
-- along a full rectangle:
-- Windows can be grouped by following the direction of window numbers.
-- 1.                2.                      3.
--    1 | 2 |   |      |1 |2 |   |   | 6        | 1 | 2 | 3 | 4|
--   ---|---| 5 |      |-----| 4 | 5 |----      |--------------|
--    3 | 4 |   |      |  3  |   |   | 7        |       5      |
-- 1. allowed, because even though 5 has no split, it has full height
-- 2. not allowed, because 3 has no vsplit
-- 4. not allowed, because splits in 1,2 are not identical in 3.
-- 1 |   | 4 |   |
-- --| 3 |---| 6 | 7
-- 2 |   | 5 |   |            alternate for 1:
-- -----------------            1 | 3 |   |
--        8                    ---|---| 5 |
-- -----------------            2 | 4 |   |
--        9
-- -----------------
--        10
-- Then: Split order of alter for 1 can be recombined via grouping together
-- {1 spl 2} vspl {3 spl 4} vspl 5
-- Note: Reason is
--  |2|3| | |
--  |---|5| |
-- 1| 4 | |7| which makes things very convoluted.
--  |-----| |
--  |  6  | |
--  |--------
--  |     8 |
-- 2 cases: 1. is full width or full height or 2. has internal splits countable
-- as series (complex one 1, series(2..8).
-- for series: while(not (full width or full height)):
--   {op:item->next_item, 1:item, 2:next_item}
--   with item = curr_index, if next(next(curr_index)).winsize
-- Doesn not hold true unless introspection or backtracking!