private Exp newExpression(String content)
{
String[] expressionsStrings = { "Arithmetic Expression", "Constant Expression",
"Variable Expression", "Binary Logical Expression","Not Expression","Relational Expression",
"Read value", "Read Heap" };
MyDialogBox expressionsBox = new MyDialogBox();
expressionsBox.MainLabel = content;
expressionsBox.MyDelegate = this;
expressionsBox.Elements = expressionsStrings;
expressionsBox.Run();
int selected = position;
switch (selected)
{
case 0:
String aoperator = newString("Enter operator (+, -, *): ");
Exp left = newExpression("Left Expression: ");
Exp right = newExpression("Right Expression: ");
return(new ArithExp(left, aoperator, right));
case 1:
int value = Convert.ToInt32(newString("Enter constant value: "));
return(new ConstExp(value));
case 2:
String name = newString("Name: ");
return(new VarExp(name));
case 3:
String loperator = newString("Enter operator (&&, ||): ");
Exp lleft = newExpression("Left Expression: ");
Exp lright = newExpression("Right Expression: ");
return(new LogicalExp(lleft, loperator, lright));
case 4:
Exp eright = newExpression("Expression: ");
return(new NotExp(eright));
case 5:
String roperator = newString("Enter operator (<, <=, !=, ==, >=, >): ");
Exp rleft = newExpression("Left Expression: ");
Exp rright = newExpression("Right Expression: ");
return(new RelationalExp(rleft, roperator, rright));
case 6:
return(new ReadExp());
case 7:
String rhname = newString("Name: ");
return(new ReadHeapExp(rhname));
default:
break;
}
return(null);
}
private Exp newExpression(String content)
{
String[] expressionsStrings = {"Arithmetic Expression", "Constant Expression",
"Variable Expression", "Binary Logical Expression", "Not Expression", "Relational Expression",
"Read value", "Read Heap"};
MyDialogBox expressionsBox = new MyDialogBox ();
expressionsBox.MainLabel = content;
expressionsBox.MyDelegate = this;
expressionsBox.Elements = expressionsStrings;
expressionsBox.Run ();
int selected = position;
switch (selected) {
case 0:
String aoperator = newString("Enter operator (+, -, *): ");
Exp left = newExpression("Left Expression: ");
Exp right = newExpression("Right Expression: ");
return new ArithExp(left, aoperator, right);
case 1:
int value = Convert.ToInt32 (newString ("Enter constant value: "));
return new ConstExp(value);
case 2:
String name = newString("Name: ");
return new VarExp(name);
case 3:
String loperator = newString ("Enter operator (&&, ||): ");
Exp lleft = newExpression ("Left Expression: ");
Exp lright = newExpression("Right Expression: ");
return new LogicalExp(lleft, loperator,lright);
case 4:
Exp eright = newExpression("Expression: ");
return new NotExp(eright);
case 5:
String roperator = newString("Enter operator (<, <=, !=, ==, >=, >): ");
Exp rleft = newExpression("Left Expression: ");
Exp rright = newExpression("Right Expression: ");
return new RelationalExp(rleft, roperator, rright);
case 6:
return new ReadExp();
case 7:
String rhname = newString("Name: ");
return new ReadHeapExp(rhname);
default:
break;
}
return null;
}
private IStmt newStatement(String content)
{
String[] statementsStrings = {"Compound Statement", "Assign Statement", "Print Statement",
"If Statement", "While Statement", "IfThen Statement", "Switch Statement", "Skip Statement",
"New Statement", "Write Heap", "Fork", "Repeat"};
MyDialogBox statementsBox = new MyDialogBox ();
statementsBox.MyDelegate = this;
statementsBox.MainLabel = content;
statementsBox.Elements = statementsStrings;
statementsBox.Run ();
int selected = position;
switch (selected) {
case 0:
IStmt first = newStatement("First Statement:");
IStmt second = newStatement("Second Statement:");
return new CompStmt(first, second);
case 1:
String name = newString("Name: ");
Exp value = newExpression("Assigned value: ");
return new AssignStmt(name, value);
case 2:
Exp expression = newExpression("Expression: ");
return new PrintStmt(expression);
case 3:
Exp condition = newExpression ("Condition: ");
IStmt thenStatement = newStatement ("Then branch: ");
IStmt elseStatement = newStatement ("Else branch: ");
return new IfStmt (condition, thenStatement, elseStatement);
case 4:
Exp wcondition = newExpression("Condition: ");
IStmt body = newStatement("Body: ");
return new WhileStmt(wcondition, body);
case 5:
Exp ifcondition = newExpression("Condition: ");
IStmt ifthenStatement = newStatement("Then branch: ");
return new IfThenStmt(ifcondition, ifthenStatement);
case 6:
Exp scondition = newExpression("Condition: ");
Exp case1Expression = newExpression("Case 1 Expression:");
IStmt case1Statement = newStatement("Case 1 Statement:");
Exp case2Expression = newExpression("Case 2 Expression:");
IStmt case2Statement = newStatement("Case 2 Statement:");
IStmt defaultStatement = newStatement("Default Statement:");
return new SwitchStmt(scondition, case1Expression, case1Statement, case2Expression, case2Statement, defaultStatement);
case 7:
return new SkipStmt();
case 8:
String ename = newString("Name: ");
Exp eexpression = newExpression("Expression: ");
return new NewStmt(ename, eexpression);
case 9:
String wname = newString("Name: ");
Exp eeexpression = newExpression("Expression: ");
return new WriteHeapStmt(wname, eeexpression);
case 10:
return new ForkStmt(newStatement("Statement: "));
case 11:
return new RepeatStmt(newStatement("Statement: "), newExpression("Expression: "));
default:
break;
}
throw new IOException();
}
private IStmt newStatement(String content)
{
String[] statementsStrings = { "Compound Statement", "Assign Statement", "Print Statement",
"If Statement", "While Statement", "IfThen Statement","Switch Statement","Skip Statement",
"New Statement", "Write Heap", "Fork", "Repeat" };
MyDialogBox statementsBox = new MyDialogBox();
statementsBox.MyDelegate = this;
statementsBox.MainLabel = content;
statementsBox.Elements = statementsStrings;
statementsBox.Run();
int selected = position;
switch (selected)
{
case 0:
IStmt first = newStatement("First Statement:");
IStmt second = newStatement("Second Statement:");
return(new CompStmt(first, second));
case 1:
String name = newString("Name: ");
Exp value = newExpression("Assigned value: ");
return(new AssignStmt(name, value));
case 2:
Exp expression = newExpression("Expression: ");
return(new PrintStmt(expression));
case 3:
Exp condition = newExpression("Condition: ");
IStmt thenStatement = newStatement("Then branch: ");
IStmt elseStatement = newStatement("Else branch: ");
return(new IfStmt(condition, thenStatement, elseStatement));
case 4:
Exp wcondition = newExpression("Condition: ");
IStmt body = newStatement("Body: ");
return(new WhileStmt(wcondition, body));
case 5:
Exp ifcondition = newExpression("Condition: ");
IStmt ifthenStatement = newStatement("Then branch: ");
return(new IfThenStmt(ifcondition, ifthenStatement));
case 6:
Exp scondition = newExpression("Condition: ");
Exp case1Expression = newExpression("Case 1 Expression:");
IStmt case1Statement = newStatement("Case 1 Statement:");
Exp case2Expression = newExpression("Case 2 Expression:");
IStmt case2Statement = newStatement("Case 2 Statement:");
IStmt defaultStatement = newStatement("Default Statement:");
return(new SwitchStmt(scondition, case1Expression, case1Statement, case2Expression, case2Statement, defaultStatement));
case 7:
return(new SkipStmt());
case 8:
String ename = newString("Name: ");
Exp eexpression = newExpression("Expression: ");
return(new NewStmt(ename, eexpression));
case 9:
String wname = newString("Name: ");
Exp eeexpression = newExpression("Expression: ");
return(new WriteHeapStmt(wname, eeexpression));
case 10:
return(new ForkStmt(newStatement("Statement: ")));
case 11:
return(new RepeatStmt(newStatement("Statement: "), newExpression("Expression: ")));
default:
break;
}
throw new IOException();
}