-$rfc7230:tchar|[%]
[\u0000-\u0020"%\u0028-\u0029,\u002F:-\u0040\u005B-\u005D\u007B\u007D\u007F-\u{10FFFF}]
[\x00-\x20"%\x28-\x29,\x2F:-\x40\x5B-\x5D\x7B\x7D\x7F-\x{10FFFF}]
Test a string: Show
Compare with: Show
Complemetary