WH>regex HighSurrogates = ['\uD800'..'\uDBFF'];
WH>regex LowSurrogates  = ['\uDC00'..'\uDFFF'];
WH>regex NonSurrogates  = ['\u0000'..'\uD7FF', '\uE000'..'\uFFFD'];
WH>regex Any = HighSurrogates LowSurrogates | NonSurrogates;
WH>