Andreas Kling f627b7dcbb LibRegex: Respect V8 astral literal lastIndex behavior ...

Preserve V8's behavior for bare single-astral literals when a unicode
global search starts in the middle of a surrogate pair. We were
snapping that lastIndex back to the pair start unconditionally,
which let /😀/gu and /\u{1F600}/gu match where V8 returns null.

Expose that literal shape from LibRegex to LibJS and add runtime
coverage for the bare literal case alongside a grouped control.

2026-03-27 17:32:19 +01:00

3.1 KiB

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