return MathAtom(new InsetMathFrac(buf, InsetMathFrac::CFRACLEFT));
if (s == "cfracright")
return MathAtom(new InsetMathFrac(buf, InsetMathFrac::CFRACRIGHT));
return MathAtom(new InsetMathFrac(buf, InsetMathFrac::CFRACLEFT));
if (s == "cfracright")
return MathAtom(new InsetMathFrac(buf, InsetMathFrac::CFRACRIGHT));