int main()
{
maintest();
bool done = false;
PostFixEval P;
string original;
cout<< "Please type the name of the file to which results are to be written to: ";
string OutputFileName;
cin.sync();
getline(cin, OutputFileName);
ofstream out;
out.open(OutputFileName);
if (!out)
{
cout<<"Failed to create output file.\n";
}
while (!done)
{
cout << "Please enter the infix expression, which must be parenthetically balanced and\n"
<< "must be enclosed in square brackets.The parsing algorithm only works if more\n"
<< "than one space is left between the characters in the inputted expression.\n"
<< "The evaluated value for a numeric expression will only be a floating point value." << endl;
getline(cin, original);
cout << "Press 2 to print the results to both screen and data file:\n"
<< "Press 3 to print the results to data file only:\n"
<< "Press 4 to print the results to screen only:\n";
int choice;
cin >> choice;
P = PostFixEval(original, false);
P.findValue();
if (choice == 2){
P.print(out);
P.print(cout);
cout<<"More data? Enter 0 to continue and 1 to exit: ";
cin >> done;
}
else if (choice == 3){
/*************************************************************
* Que 4. Infix expression evaluation
*
* Comment : 1) Convert Infix to postfix expression
* 2) Eval using postfix evaluation and return
* result
*
* Parameters : expression array
* Returns : int (eval result)
*************************************************************/
int InfixEval(char A[])
{
//Convert expression to postfix then eval,
return PostFixEval(InfixToPostFix(A));
}
