Can correctly print out index labels with sub and super script symbols

Author: evaleev

SeQuant.m

@@ -511,7 +511,7 @@ Operators are further classified according to the permutational symmetry of equi
 (* these functions display particleIndex in string *)
 
 visualizeIndex[a_particleIndex] :=
-	stringAppendSpin[ToString[a[[1]]],indexSpin[a]];
+	stringAppendSpin[ToString[a[[1]],StandardForm],indexSpin[a]];
 
 Format[particleIndex[a__],TraditionalForm] :=
     visualizeIndex[particleIndex[a]];