public void execute(PrgState state)
{
ImyDict <int, Tuple <string, StreamReader> > fileTable = state.getFileTable();
ImyDict <string, int> symTable = state.getSymTable();
try {
if (fileTable.isInTuple(this.filename))
{
throw new StmtException("File allready opened");
}
} catch (Exception e1) {
throw new StmtException("Statement \"" + this.ToString() + "\" encountered a dictionary exception: " + e1.Message);
}
StreamReader buffReader;
try {
buffReader = new StreamReader(filename);
} catch (FileNotFoundException) {
throw new StmtException("File not found \"" + filename + "\"");
}
Tuple <string, StreamReader> entry = new Tuple <string, StreamReader>(filename, buffReader);
int id = fileTable.generateId();
fileTable.add(id, entry);
symTable.add(var_file_id, id);
}
public void execute(PrgState state)
{
ImyDict <string, int> symTable = state.getSymTable();
int val;
try {
val = e.eval(symTable);
symTable.add(id, val);
} catch (ExpException e) {
throw new StmtException("Statement \"" + this.ToString() + "\": " + e.Message);
}
}
public void execute(PrgState state)
{
ImyDict <string, int> symTable = state.getSymTable();
ImyDict <int, Tuple <string, StreamReader> > fileTable = state.getFileTable();
int v;
StreamReader buffReader;
try {
v = exp_file_id.eval(symTable);
} catch (ExpException e) {
throw new StmtException("Expression \"" + exp_file_id + "\" in statement + \"" + this.ToString() + "\" is invalid: " + e.Message);
}
try {
buffReader = fileTable.get(v).Item2;
} catch (Exception) {
throw new StmtException("File does not exist or hasn't been open \"" + exp_file_id.ToString() + "\"");
}
try {
string readValue = buffReader.ReadLine();
int value;
if (readValue == null)
{
value = 0;
}
else
{
Int32.TryParse(readValue, out value);
}
symTable.add(var_name, value);
} catch (IOException e2) {
throw new StmtException("Statement \"" + this.ToString() + "\" encountered an exception: " + e2.Message);
}
}
