FWIW, I have proposed the custom optimized sorter: Sort items "naturally" in menu, summary, function list, etc. · Issue #1440 · elixir-lang/ex_doc · GitHub

We updated NaturalSort with changes from @eksperimental. Thanks for fixing those bugs.

How do you define “natural”?

Things that come to mind:

• ignore case
• ignore diacritics
• 2 < 10

I have this hacky solution which should work but probably isn’t optimal:

Enum.sort_by(~w(A B a b), &{String.downcase(&1), &1})

EDIT: the implementation is correct, I had the wrong input

The problem with this approach is that it returns different results depending on the initial order for the same list shuffled.

iex(16)> Enum.sort_by(~w(A B a b), &{String.downcase(&1), &1})
["A", "a", "B", "b"]

iex(17)> Enum.sort_by(~w(a B B b), &{String.downcase(&1), &1})
["a", "B", "B", "b"]

~~Actually I have reported this very same issue to this library just a few hours ago: Issues · BinaryNoggin/natural_order · GitHub