On Mon, Sep 08, 2025 at 04:59:48 -0400, Grisha Levit wrote: > Alternatively, we could check that the _range_ ends are ASCII characters > (and, depending on the desired behavior, check the character being tested > as well) before disabling locale-aware collation.
This one makes the most sense to me -- the first half, I mean. With globasciiranges on, we want [0-5] to match *only* the characters 0, 1, 2, 3, 4 and 5. We want to disable locale-aware collation for all characters when matching against this range, so that characters like ⁴ (superscript 4) are not matched. If locale-aware collation is allowed between 0 and ⁴, and between ⁴ and 5, then we get a false match. I think that's what's happening currently. hobbit:/tmp/x$ ls 1 2 ² 3 ⁴ ⁵ hobbit:/tmp/x$ shopt -u globasciiranges hobbit:/tmp/x$ echo [0-5] 1 2 ² 3 ⁴ hobbit:/tmp/x$ shopt -s globasciiranges hobbit:/tmp/x$ echo [0-5] 1 2 3 ⁴ Superscript 2 is correctly excluded, but superscript 4 is incorrectly included.
