@mathias how does /.X/u match "\ud800XaX"? And how does /\ud800./u match "\u{10000}"?
@hashseed IIUC, `.` with the `u` flag matches any code point rather than any UCS-2/UTF-16 code unit, and lone surrogates are code points too
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@hashseed IIUC, `.` with the `u` flag matches any code point rather than any UCS-2/UTF-16 code unit, and lone surrogates are code points too