[ruby-core:123725] [Ruby Bug#13671] Regexp with lookbehind and case-insensitivity raises RegexpError only on strings with certain characters

From: "alanwu (Alan Wu) via ruby-core" <ruby-core@...>
Date: 2025-11-07 22:43:44 UTC
List: ruby-core #123725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In This Thread

Prev Next