Set

Original expression

-[\uD800-\uDFFF\uFFFE-\u{10FFFF}] Copy

Normalized

[\u0000-\uD7FF\uE000-\uFFFD] Copy

Perl

[\x00-\x{D7FF}\x{E000}-\x{FFFD}] Copy

Complemetary

Characters (63486)

• U+0000
• ...
• ퟿ U+D7FF
•  U+E000
• ...
• � U+FFFD