Set

Original expression

-$rfc3986:unreserved Copy

Normalized

[\u0000-,\u002F:-\u0040\u005B-\u005E`\u007B-\u007D\u007F-\u{10FFFF}] Copy

Perl

[\x00-,\x2F:-\x40\x5B-\x5E`\x7B-\x7D\x7F-\x{10FFFF}] Copy

Complemetary