public float perform(int line_number, String line, LinkedList <Variable> variableList)
{
Syntax lolcode = new Syntax();
DataType t = new DataType();
String arithop = new Regex("^" + Syntax.aop).Match(line).Groups["aop"].Value;
String ident2 = lolcode.r[4].Match(line).Groups["identifier2"].Value;
float ITfloat = 0;
float ITfloat2 = 0;
int index = 0, pos = -1;
for (int a = 0; a < lolcode.r[4].Match(line).Groups["identifier1"].Captures.Count; a++)
{
if (pos == -1 || lolcode.r[4].Match(line).Groups["identifier1"].Captures[a].Index < pos)
{
pos = lolcode.r[4].Match(line).Groups["identifier1"].Captures[a].Index;
index = a;
}
}
String ident1 = lolcode.r[4].Match(line).Groups["identifier1"].Captures[index].Value;
// first operand = arithmetic operation
if (lolcode.r[4].Match(ident1).Success)
{
ArithmeticOperation aop = new ArithmeticOperation();
ITfloat = aop.perform(line_number, ident1, variableList);
}
// if the first operand is a literal
else if (new Regex("^(" + Syntax.literals + ")$").Match(ident1).Success)
{
ITfloat = float.Parse(ident1);
}
// if the first operand is a variable
else
{
counter = 0;
// traverse the linked list of declared variables to find the first operand's variable name
foreach (Variable v in variableList)
{
// if a match was found, get its value and store it in ITfloat
if (ident1.Equals(v.getIdent()))
{
if (v.gettype() == "NOOB")
{
ITfloat = 0;
}
else if (v.gettype() == "YARN")
{
t.cast(line_number, "NUMBAR", v.getIdent(), variableList);
if (v.gettype() == "YARN")
{
return(0);
}
}
else
{
ITfloat = float.Parse(v.getvalue());
}
break;
}
counter++;
}
// if the end of linked list is reached yet none matched the variable name, then it isn't declared, hence produce an error
if (counter >= variableList.Count)
{
Program.main.console_output.AppendText("Error at line " + (line_number + 1) + ": Variable used as first operand is undeclared.\n");
ITfloat = 0;
}
}
// second operand = arithmetic operation
if (lolcode.r[4].Match(ident2).Success)
{
ArithmeticOperation aop = new ArithmeticOperation();
ITfloat2 = aop.perform(line_number, ident2, variableList);
}
// if the second operand is a literal
else if (new Regex("^(" + Syntax.literals + ")$").Match(ident2).Success)
{
//Program.main.console_output.AppendText("ident2:" + ident2 + "\n");
ITfloat2 = float.Parse(ident2);
}
// if the second operand is variable name
else
{
counter = 0;
// traverse the linked list of declared variables to find the second operand's variable name
foreach (Variable v in variableList)
{
// if a match was found, get its value and store it in ITfloat2
if (ident2.Equals(v.getIdent()))
{
if (v.gettype() == "NOOB")
{
ITfloat2 = 0;
}
else if (v.gettype() == "YARN")
{
t.cast(line_number, "NUMBAR", v.getIdent(), variableList);
if (v.gettype() == "YARN")
{
return(0);
}
}
else
{
ITfloat2 = float.Parse(v.getvalue());
}
break;
}
counter++;
}
// if the end of linked list is reached yet none matched the variable name, then it isn't declared, hence produce an error
if (counter >= variableList.Count)
{
Program.main.console_output.AppendText("Error at line " + (line_number + 1) + ": Variable used as second operand is undeclared.\n");
ITfloat2 = 0;
}
}
// after storing the value of first operand to ITfloat and the second operand to ITfloat2, process the operation
if (new Regex(@"SUM\s+OF").Match(arithop).Success)
{
return(ITfloat + ITfloat2);
}
else if (new Regex(@"DIFF\s+OF").Match(arithop).Success)
{
return(ITfloat - ITfloat2);
}
else if (new Regex(@"PRODUKT\s+OF").Match(arithop).Success)
{
return(ITfloat * ITfloat2);
}
else if (new Regex(@"QUOSHUNT\s+OF").Match(arithop).Success)
{
if (ITfloat2 != 0)
{
return(ITfloat / ITfloat2);
}
else
{
Program.main.console_output.AppendText("Error at line " + (line_number + 1) + ": Math error due to division by 0.\n");
return(0);
}
}
else if (new Regex(@"MOD\s+OF").Match(arithop).Success)
{
return(ITfloat % ITfloat2);
}
else if (new Regex(@"BIGGR\s+OF").Match(arithop).Success)
{
if (ITfloat >= ITfloat2)
{
return(ITfloat);
}
else
{
return(ITfloat2);
}
}
else if (new Regex(@"SMALLR\s+OF").Match(arithop).Success)
{
if (ITfloat <= ITfloat2)
{
return(ITfloat);
}
else
{
return(ITfloat2);
}
}
else
{
return(0);
}
}
public String concatenate(int line_number, String value, String line, LinkedList <Variable> variableList)
{
int counter;
Syntax lolcode = new Syntax();
String identifier1 = lolcode.r[1].Match(line).Groups["identifier1"].Value;
String identifier2 = lolcode.r[1].Match(line).Groups["identifier2"].Value;
String tempString = "";
// if first argument of SMOOSH is a string
if (new Regex(Syntax.stringSyntax).Match(identifier1).Success)
{
tempString = new Regex(Syntax.stringSyntax).Match(identifier1).Groups["stringValue"].Value;
}
// if first argument of SMOOSH is int, float, or boolean
else if (new Regex(value + ")").Match(identifier1).Success)
{
tempString = identifier1;
}
// if first argument of SMOOSH is a variable
else
{
counter = 0;
// traverse the linked list of variables to find the first argument in the SMOOSH operator
foreach (Variable v in variableList)
{
// if a match is found, print its value in the console
if (identifier1.Equals(v.getIdent()))
{
tempString = v.getvalue();
break;
}
counter++;
}
// if the end of linked list is reached yet none matched the variable name, then it isn't declared, hence produce an error
if (counter >= variableList.Count)
{
Program.main.console_output.AppendText("Error at line " + (line_number + 1) + ": Variable used as first operand is undeclared.\n");
}
}
// do the same for the second argument of the SMOOSH operator
if (new Regex(Syntax.stringSyntax).Match(identifier2).Success)
{
tempString = tempString + new Regex(Syntax.stringSyntax).Match(identifier2).Groups["stringValue"].Value;
}
else if (new Regex(value + ")").Match(identifier2).Success)
{
tempString = tempString + identifier2;
}
else
{
counter = 0;
foreach (Variable v in variableList)
{
if (identifier2.Equals(v.getIdent()))
{
tempString = tempString + v.getvalue();
break;
}
counter++;
}
if (counter >= variableList.Count)
{
Program.main.console_output.AppendText("Error at line " + (line_number + 1) + ": Variable used as second operand is undeclared.\n");
}
}
return(tempString);
}