<RegularExpression>{
\/{UnicodePart}* R CYLexBufferUnits(yytext, yyleng); CYLexBufferEnd(literal, RegEx, tk::RegularExpressionLiteral, hi::Constant);
\/{UnicodePart}*{UnicodeFail} R E("invalid flags")
<RegularExpression>{
\/{UnicodePart}* R CYLexBufferUnits(yytext, yyleng); CYLexBufferEnd(literal, RegEx, tk::RegularExpressionLiteral, hi::Constant);
\/{UnicodePart}*{UnicodeFail} R E("invalid flags")