I can’t find any information in the docs how to use specific locale’s collation rules in sort commands available in Elixir. Does that mean I’m on my own here? If anyone tackled this problem before what did you try? Many thanks for any ideas.

There is nothing like that in elixir, but you can use Enum.sort/2 and define the sorting function as necessary by your collation.

How strange! I see there is a i18n module in Erlang so maybe that’s something that can be done. Anyway, I think it’s a huge showstopper.

I have found the Linguist library but it does not seem to address collation :frowning: And does not seem to be actively maintained anymore.

It’s eight years later and by default Elixir still sorts wrong. I think the expected behaviour would be to apply collation rules of the system locale. Does it mean it’s going to stay like this?

Could you give an example? :eyes:

Hey. The way I do it is using the CLDR Collation lib (all CLDR libs are pretty good! Thanks @kip !) [image] ex_cldr_collation Elixir implementation of the Cldr Collation algorithm, providing language-aware string sorting and comparison. An opt-in NIF is provided for high performance co …

Yes, I know, that’s why I use Elixir! But I don’t understand why it isn’t part of Elixir and it’s not endorsed officially.

[image] expilo: It’s eight years later and by default Elixir still sorts wrong. There is no right or wrong here given a lack of context. Collations are locale specific defaults sort orders so given a lack of knowing the locale there’s no way to select a locale specific default sort order. One…

Many thanks for Your reply! Yes, it makes perfect sense.

Elixir Programming Language Forum

Sorting using locales

Questions & Help Questions

expilo April 9, 2025, 6:26am 8

[“Łódź”, “Warszawa”, “Zegrze”] |> Enum.sort