textbox content sum

Question

Hi,

 

iam using below code which i get solution in this platform but i stuck  below .

 

iam using in textbox like below

[12-a

12-b]6

result is 144

this is work perfectly.

 

if iam using like below 

{12-a

12-b 

[6-a

6-b]3}3

result is 60

this is also work

 

if iam using like below

[12-a

12-b]99

or

[12-a

12-b]999

 

or

[12-a

12-b]9999 

 

this is not work please see below code and solve this problem.

private void button1_Click(object sender, EventArgs e)

{

int combinedSum = 0;

for (char letter = 'A'; letter <= 'D'; letter++)

{

int sum = 0;

var stack = new Stack<string>();

int stackSum = 0;

foreach (string line in textBox1.Lines)

{

string temp = line.Replace(".", "").Replace(" ", ""); // remove dots and spaces

if (temp == "") continue; // ignore blank line

bool containsLetter = (line.IndexOf(letter) > -1);

char first = temp[0];

char last = temp[temp.Length - 1];

if (Char.IsDigit(first))

{

string numStr = temp.Split('-')[0];

if (!containsLetter) numStr = "0";

if (stack.Count == 0)

{

sum += int.Parse(numStr);

}

else

{

stack.Push(numStr);

}

if (Char.IsDigit(last))

{

int multiplier = last - 48;

char bracket = temp[temp.Length - 2];

int total = 0;

char openChar = '\0';

string tempStr;

if (bracket == '}')

openChar = '{';

else if (bracket == ']')

openChar = '[';

else if (bracket == ')')

openChar = '(';

else if (bracket == '>')

openChar = '<';

do

{

tempStr = stack.Pop();

int num;

if (int.TryParse(tempStr, out num)) total += num;

}

while (tempStr[0] != openChar);

stackSum = (stackSum + total) * multiplier;

if (stack.Count == 0)

{

sum += stackSum;

stackSum = 0;

}

}

}

else

{

stack.Push(first.ToString());

int index = 1;

while (true)

{

if (Char.IsDigit(temp[index])) break;

stack.Push(temp[index].ToString());

index++;

}

string numStr2 = temp.Substring(index).Split('-')[0];

if (!containsLetter) numStr2 = "0";

stack.Push(numStr2);

if (Char.IsDigit(last))

{

int multiplier = last - 48;

char bracket = temp[temp.Length - 2];

int total = 0;

char openChar = '\0';

string tempStr;

if (bracket == '}')

openChar = '{';

else if (bracket == ']')

openChar = '[';

else if (bracket == ')')

openChar = '(';

else if (bracket == '>')

openChar = '<';

do

{

tempStr = stack.Pop();

int num;

if (int.TryParse(tempStr, out num)) total += num;

}

while (tempStr[0] != openChar);

stackSum += (stackSum + total) * multiplier;

if (stack.Count == 0)

{

sum += stackSum;

stackSum = 0;

}

}

}

}

switch (letter)

{

case 'A':

textBox3.Text = String.Format("A = {0}", sum);

break;

case 'B':

textBox4.Text = String.Format("B = {0}", sum);

break;

case 'C':

textBox5.Text = String.Format("C = {0}", sum);

break;

case 'D':

textBox6.Text = String.Format("D = {0}", sum);

break;

}

combinedSum += sum;

}

textBox2.Text = String.Format("Sum = {0}", combinedSum);

}