[ruby-core:118030] Re: Provide utf-8 sorting for ruby next

This proposal does not make sense, since sorting non-ASCII strings is
locale dependent, so there can't exist a `sort_by_utf` method. The
`sort_alphabetical` gem is broken in this regard, as well:
```irb
$ irb -rsort_alphabetical
irb(main):001:0> ["i", "=C4=B1"].sort_alphabetical
=3D> ["i", "=C4=B1"]
irb(main):002:0> ["i", "=C4=B1", "=C3=BC", "u"].sort_alphabetical
=3D> ["i", "u", "=C3=BC", "=C4=B1"]
```
None of the above results make any sense for Turkish character sorting, the
expected sorting should have been `["=C4=B1", "i", "u", "=C3=BC"]` which yo=
u can see
here: https://simple.wikipedia.org/wiki/Turkish_alphabet

As a general point, string literals are not going to be frozen any
time soon, and there will always be an option to disable it even when
string literals are frozen by default. So, IMO, this is not a valid
argument for adding features to Ruby.

Ufuk Kayserilioglu


On Mon, 27 May 2024 at 13:34, d_rems--- via ruby-core <
[e-mail]> wrote:

> Since it has been declared that frozen_string_literal will print warnings
> in Ruby 3.4. and will be mandatory in the future I must warn, that ruby
> still doesn't have built in method for sorting by UTF-8 characters.
>
> Most of string methods work OK with UTF-8 strings, but not sort.
>
> I've been using sort_alphabetical gem [
> https://github.com/grosser/sort_alphabetical ] for a long time and it
> works good for me. Problem is that it depends on unicode_utils gem [
> https://github.com/lang/unicode_utils ] which looks like a  dead
> repository, since repository owner has not been active for a decade.
>
> And unicode_utils use a lot of code which is not complied with
> frozen_string_literal.
>
> I am proposing to include UTF-8 sort (ex. sort_by_utf) method into next
> ruby version or at least include (and correct) those two gems in a future
> Ruby distribution.
>
> Thanks
>
> by
> TheR
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