Split string expression with multiple parenthesis (C#) -

i have below string , want split in such way both parameters of function fngetdate separated.

function:

"fngetdate('d',-1+ cint(cbool(datepart('w',date())<=2)) + cint(cbool(datepart('w',date())=2)))" 

desired output (after split):

[0] fngetdate(  [1] 'd'  [2] -1+ cint(cbool(datepart('w',date())<=2)) + cint(cbool(datepart('w',date())=2)) 

according comment, counting number of opening , closing parenthesis ok you.

this example works me:

string str = "fngetdate('d',-1+ cint(cbool(datepart('w',date())<=2)) + cint(cbool(datepart('w',date())=2)))"; int parlevel = 0; list<string> arguments = new list<string>(); string currentstring = string.empty;  foreach (char t in str) {     switch (t)     {         case '(':             if (t == '(') parlevel++;             currentstring += t;             if (parlevel == 1)             {                 arguments.add(currentstring);                 currentstring = string.empty;             }             break;         case ')':             if (t == ')') parlevel--;             if (parlevel > 0) currentstring += t;             break;         case ',':             if (parlevel == 1)             {                 arguments.add(currentstring);                 currentstring = string.empty;             }              else                  currentstring += t;             break;         default:             currentstring += t;             break;     } } if (!string.isnullorempty(currentstring)) arguments.add(currentstring);  (int = 0; < arguments.count; i++)     console.writeline("argument {0}: {1}", i, arguments[i]); 

ideone working demo.