//Testing
public static void Main()
{
OrderOfOperations go = new OrderOfOperations();
var a = go.brackets("(12)5");
Console.WriteLine("Result: " + a);
}
public decimal brackets(String s)
{ //Separate brackets
check = new OrderOfOperations();
while (s.Contains(Char.ToString('(')) || s.Contains(Char.ToString('(')))
{
for (int o = 0; o < s.Length; o++)
{
try
{ //If there is not sign it is treated as a multiplication
if ((s[o] == ')' || Char.IsDigit(s[o])) &&
s[o + 1] == '(')
{
s = s.Substring(0, o + 1) + "*" + (s.Substring(o + 1));
}
}
catch (Exception ignored) { }
if (s[o] == ')')
{ //search for a closing bracket
for (int i = o; i >= 0; i--)
{
if (s[i] == '(')
{ //search for a opening bracket
String inn = s.Substring(i + 1, o);
inn = check.recognize(inn);
s = s.Substring(0, i) + inn + s.Substring(o + 1);
i = o = 0;
}
}
}
}
if (s.Contains(Char.ToString('(')) || s.Contains(Char.ToString(')')) ||
s.Contains(Char.ToString('(')) || s.Contains(Char.ToString(')')))
{
Console.WriteLine("Error: incorrect brackets placement");
return(0);
}
}
s = check.recognize(s);
return(Convert.ToDecimal(s));
}