public ProgState execute(ProgState prog)
{
MyIDictionary <string, int> dict = prog.getDict();
try
{
if (dict.isDefined(this.id) == 1)
{
dict.update(id, exp.eval(dict));
}
else
{
dict.add(id, exp.eval(dict));
}
return(prog);
}
catch (StmtExceptions e)
{
throw new ControllerException(e);
}
catch (DivizionByZeroException e)
{
throw new ControllerException(e);
}
}
public ProgState execute(ProgState prog)
{
MyIDictionary <string, int> dict = prog.getDict();
MyIFileTable <Tuple> Tpl = prog.getFile();
try
{
if (Tpl.isEmpty() == 1)
{
for (int i = 1; i <= Tpl.getKey(); i++)
{
Tuple tpl = Tpl.get(i);
if (tpl != null && tpl.getName() == filename)
{
throw new ControllerException("The file does not exist!! \n");
}
}
}
StreamReader st = new StreamReader(filename);
Tuple tup = new Tuple(filename, st);
Tpl.add(tup);
dict.add(varName, Tpl.getKey());
return(prog);
}
catch (FileNotFoundException e)
{
Console.WriteLine(e.ToString());
}
catch (DictExceptions e)
{ throw new ControllerException(e.ToString()); }
return(null);
}
public ProgState execute(ProgState prog)
{
MyIDictionary <string, int> dict = prog.getDict();
MyIFileTable <Tuple> tpl = prog.getFile();
try
{
int val = exp.eval(dict);
Tuple tup = tpl.get(val);
if (tup != null)
{
string st = tup.getST().ReadLine();
if (st != null)
{
if (dict.isDefined(name) == 0)
{
dict.add(name, int.Parse(st));
}
else
{
dict.update(name, int.Parse(st));
}
}
}
else
{
throw new ControllerException("The file does not exist !!! \n");
}
}
catch (StmtExceptions e)
{
throw new ControllerException(e);
}
catch (IOException e)
{
Console.WriteLine(e.ToString());
}
return(prog);
}
public PrgState execute(PrgState state)
{
MyIDictionary <string, int> symTbl = state.getSymTable();
try {
int val = exp.eval(symTbl);
if (symTbl.isDefined(id))
{
symTbl.update(id, val);
}
else
{
symTbl.add(id, val);
}
}
catch (MyException ex) {
throw new MyException("" + ex);
}
return(state);
}
public PrgState execute(PrgState state)
{
MyIDictionary <string, int> symTbl = state.getSymTable();
MyIFileDictionary <int, KeyValuePair <string, StreamReader> > fileTable = state.getFileTable();
try
{
int val = exp_file_id.eval(symTbl);
fileTable.lookup(val);
StreamReader br = fileTable.get(val).Value;
String line = br.ReadLine();
int value, x;
if (line == null)
{
value = 0;
}
else
{
value = int.Parse(line);
}
if (symTbl.isDefined(var_name))
{
symTbl.update(var_name, value);
}
else
{
symTbl.add(var_name, value);
}
}
catch (MyException e)
{
throw new MyException("" + e);
}
return(state);
}
public PrgState execute(PrgState state)
{
MyIFileDictionary <int, KeyValuePair <string, StreamReader> > dict = state.getFileTable();
try
{
for (int i = 0; i < dict.size(); i++)
{
if (dict.lookup(i).Key == filename)
{
throw new MyException("Filename already exists!");
}
}
StreamReader br = null;
FileStream fr = null;
try
{
fr = new FileStream(filename, FileMode.Open);
br = new StreamReader(fr);
KeyValuePair <string, StreamReader> p = new KeyValuePair <string, StreamReader>(filename, br);
int uniqKey = this.key.getGeneratedKey();
dict.add(uniqKey, p);
//int lastKey = dict.getKey();
MyIDictionary <string, int> symTbl = state.getSymTable();
symTbl.add(var_file_id, uniqKey);
}
catch (IOException e)
{
throw new IOException(e.ToString());
}
}
catch (MyException ex)
{
throw new MyException("" + ex);
}
return(state);
}