Re: Locale aware range expressions?

[Paul Eggert]

On 2024-01-27 18:43, Ronan Pigott wrote:
>    # locale aware collation, exactly as described in grep(1)
>    $ print -l {a..d} {A..D} | sort

Not exactly. 'sort' sorts strings using an algorithm that is more 
complicated than simply comparing characters according to the collation 
sequence, because it uses weights. This is true even for 
single-character strings. This means that in general, you cannot use 
'sort' to deduce a locale's collation sequence.

It's a messy area, specified more formally here:

https://pubs.opengroup.org/onlinepubs/9699919799.2018edition/basedefs/V1_chap07.html#tag_07_03_02