return MathAtom(new MathFontOldInset(l));
if (inset == "matrix")
return MathAtom(new MathAMSArrayInset(s));
+ if (inset == "big")
+ // we can't create a MathBigInset, since the argument
+ // is missing.
+ return MathAtom(new MathUnknownInset(s));
return MathAtom(new MathSymbolInset(l));
}