public List<List<String>> process(List<Postfix> postfix)
{
List<Postfix> stack = new List<Postfix>();
List<Quadruple> quadruples = new List<Quadruple>();
List<String> quadText = new List<String>();
List<String> tacText = new List<string>();
int countTemp = 0;
for (int i = 0; i < postfix.Count; i++)
{
Operator op;
try
{
op = this.getOperator(postfix[i]);
if (op == null)
{
// not operator
stack.Add(postfix[i]);
}
else
{
// is operator
Quadruple tmp;
int lastIndex = stack.Count - 1;
if (op.Type == 2)
{
// a op b
String opr2 = stack[lastIndex].item;
String opr1 = stack[lastIndex - 1].item;
stack.RemoveAt(lastIndex); stack.RemoveAt(lastIndex - 1);
countTemp++;
String res = "temp" + countTemp;
tmp = new Quadruple(quadruples.Count + 1, op.FName, opr1, opr2, res);
stack.Add(new Postfix(res));
quadruples.Add(tmp);
String tac = (tmp.Result + " := " + tmp.Operand1 + " " + op.Name + " " + tmp.Operand2);
tacText.Add(tmp.No + ". " + tac + "\n");
quadText.Add(tmp.No + ". " + tmp.Operator + "," + tmp.Operand1 + "," + tmp.Operand2 + "," + tmp.Result + "\n");
}
else
{
if (op.Name == "=")
{
// a = b
String opr = stack[lastIndex].item;
String res = stack[lastIndex - 1].item;
stack.RemoveAt(lastIndex); stack.RemoveAt(lastIndex - 1);
tmp = new Quadruple(quadruples.Count + 1, op.FName, opr, "", res);
quadruples.Add(tmp);
String tac = (tmp.Result + " := " + tmp.Operand1);
tacText.Add(tmp.No + ". " + tac + "\n");
quadText.Add(tmp.No + ". " + tmp.Operator + "," + tmp.Operand1 + "," + tmp.Operand2 + "," + tmp.Result + "\n");
}
}
}
}
catch (Exception)
{
throw;
}
}
List<List<String>> output = new List<List<String>>();
output.Add(tacText);
output.Add(quadText);
return output;
}
private bool processOneStep()
{
if (!isProcessing || processedItem >= postfix.Count)
{
btnNextProcess.Enabled = false;
return false;
}
Operator op;
try
{
op = getOperator(postfix[processedItem]);
if (op == null)
{
// not operator
stack.Add(postfix[processedItem].item);
}
else
{
// is operator
Quadruple tmp;
int lastIndex = stack.Count - 1;
if (op.Type == 2)
{
// a op b
String opr2 = stack[lastIndex];
String opr1 = stack[lastIndex - 1];
stack.RemoveAt(lastIndex); stack.RemoveAt(lastIndex - 1);
countTemp++;
String res = "temp" + countTemp;
tmp = new Quadruple(quadruples.Count + 1, op.FName, opr1, opr2, res);
stack.Add(res);
quadruples.Add(tmp);
String tac = (tmp.Result + " := " + tmp.Operand1 + " " + op.Name + " " + tmp.Operand2);
lblStackOutput.Text = tac;
if (isFileProcessing)
{
tacText.Add(tmp.No + ". " + tac + "\n");
quadText.Add(tmp.No + ". " + tmp.Operator + "," + tmp.Operand1 + "," + tmp.Operand2 + "," + tmp.Result + "\n");
}
}
else
{
if (op.Name == "=")
{
// a = b
String opr = stack[lastIndex];
String res = stack[lastIndex - 1];
stack.RemoveAt(lastIndex); stack.RemoveAt(lastIndex - 1);
tmp = new Quadruple(quadruples.Count + 1, op.FName, opr, "", res);
quadruples.Add(tmp);
String tac = (tmp.Result + " := " + tmp.Operand1);
lblStackOutput.Text = tac;
if (isFileProcessing)
{
tacText.Add(tmp.No + ". " + tac + "\n");
quadText.Add(tmp.No + ". " + tmp.Operator + "," + tmp.Operand1 + "," + tmp.Operand2 + "," + tmp.Result + "\n");
}
}
}
}
}
catch (Exception)
{
MessageBox.Show("Error occured. Invalid input might be the cause of this.", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
return false;
}
processedItem++;
txtProcessedIndex.Text = Convert.ToString(processedItem);
if (processedItem == postfix.Count)
{
if (stack.Count > 0)
{
MessageBox.Show("Error occured. Invalid input might be the cause of this.", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
return false;
}
stack.Clear();
processedItem = 0;
isProcessing = false;
btnNextProcess.Enabled = false;
btnClearInput.Enabled = true;
btnDefaultInput.Enabled = true;
btnNextInput.Enabled = true;
proses.Enabled = false;
btnProcessToFile.Enabled = false;
lblProcessed.Visible = false;
//txtProcessedIndex.Text = "";
txtProcessedIndex.Visible = false;
}
showInput();
showStack();
showQuadruple();
return true;
}
private bool processOneStep()
{
if (!isProcessing || processedItem >= postfix.Count)
{
btnNextProcess.Enabled = false;
return(false);
}
Operator op;
try
{
op = getOperator(postfix[processedItem]);
if (op == null)
{
// not operator
stack.Add(postfix[processedItem].item);
}
else
{
// is operator
Quadruple tmp;
int lastIndex = stack.Count - 1;
if (op.Type == 2)
{
// a op b
String opr2 = stack[lastIndex];
String opr1 = stack[lastIndex - 1];
stack.RemoveAt(lastIndex); stack.RemoveAt(lastIndex - 1);
countTemp++;
String res = "temp" + countTemp;
tmp = new Quadruple(quadruples.Count + 1, op.FName, opr1, opr2, res);
stack.Add(res);
quadruples.Add(tmp);
String tac = (tmp.Result + " := " + tmp.Operand1 + " " + op.Name + " " + tmp.Operand2);
lblStackOutput.Text = tac;
if (isFileProcessing)
{
tacText.Add(tmp.No + ". " + tac + "\n");
quadText.Add(tmp.No + ". " + tmp.Operator + "," + tmp.Operand1 + "," + tmp.Operand2 + "," + tmp.Result + "\n");
}
}
else
{
if (op.Name == "=")
{
// a = b
String opr = stack[lastIndex];
String res = stack[lastIndex - 1];
stack.RemoveAt(lastIndex); stack.RemoveAt(lastIndex - 1);
tmp = new Quadruple(quadruples.Count + 1, op.FName, opr, "", res);
quadruples.Add(tmp);
String tac = (tmp.Result + " := " + tmp.Operand1);
lblStackOutput.Text = tac;
if (isFileProcessing)
{
tacText.Add(tmp.No + ". " + tac + "\n");
quadText.Add(tmp.No + ". " + tmp.Operator + "," + tmp.Operand1 + "," + tmp.Operand2 + "," + tmp.Result + "\n");
}
}
}
}
}
catch (Exception)
{
MessageBox.Show("Error occured. Invalid input might be the cause of this.", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
processedItem++;
txtProcessedIndex.Text = Convert.ToString(processedItem);
if (processedItem == postfix.Count)
{
if (stack.Count > 0)
{
MessageBox.Show("Error occured. Invalid input might be the cause of this.", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Error);
return(false);
}
stack.Clear();
processedItem = 0;
isProcessing = false;
btnNextProcess.Enabled = false;
btnClearInput.Enabled = true;
btnDefaultInput.Enabled = true;
btnNextInput.Enabled = true;
proses.Enabled = false;
btnProcessToFile.Enabled = false;
lblProcessed.Visible = false;
//txtProcessedIndex.Text = "";
txtProcessedIndex.Visible = false;
}
showInput();
showStack();
showQuadruple();
return(true);
}
public List <List <String> > process(List <Postfix> postfix)
{
List <Postfix> stack = new List <Postfix>();
List <Quadruple> quadruples = new List <Quadruple>();
List <String> quadText = new List <String>();
List <String> tacText = new List <string>();
int countTemp = 0;
for (int i = 0; i < postfix.Count; i++)
{
Operator op;
try
{
op = this.getOperator(postfix[i]);
if (op == null)
{
// not operator
stack.Add(postfix[i]);
}
else
{
// is operator
Quadruple tmp;
int lastIndex = stack.Count - 1;
if (op.Type == 2)
{
// a op b
String opr2 = stack[lastIndex].item;
String opr1 = stack[lastIndex - 1].item;
stack.RemoveAt(lastIndex); stack.RemoveAt(lastIndex - 1);
countTemp++;
String res = "temp" + countTemp;
tmp = new Quadruple(quadruples.Count + 1, op.FName, opr1, opr2, res);
stack.Add(new Postfix(res));
quadruples.Add(tmp);
String tac = (tmp.Result + " := " + tmp.Operand1 + " " + op.Name + " " + tmp.Operand2);
tacText.Add(tmp.No + ". " + tac + "\n");
quadText.Add(tmp.No + ". " + tmp.Operator + "," + tmp.Operand1 + "," + tmp.Operand2 + "," + tmp.Result + "\n");
}
else
{
if (op.Name == "=")
{
// a = b
String opr = stack[lastIndex].item;
String res = stack[lastIndex - 1].item;
stack.RemoveAt(lastIndex); stack.RemoveAt(lastIndex - 1);
tmp = new Quadruple(quadruples.Count + 1, op.FName, opr, "", res);
quadruples.Add(tmp);
String tac = (tmp.Result + " := " + tmp.Operand1);
tacText.Add(tmp.No + ". " + tac + "\n");
quadText.Add(tmp.No + ". " + tmp.Operator + "," + tmp.Operand1 + "," + tmp.Operand2 + "," + tmp.Result + "\n");
}
}
}
}
catch (Exception)
{
throw;
}
}
List <List <String> > output = new List <List <String> >();
output.Add(tacText);
output.Add(quadText);
return(output);
}
