private void LandingSiteCollection_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
LandingSite editedLandingSite = new LandingSite();
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
{
int newIndex = e.NewStartingIndex;
editedLandingSite = LandingSiteCollection[newIndex];
LandingSites.Add(editedLandingSite);
}
break;
case NotifyCollectionChangedAction.Remove:
{
List <LandingSite> tempListOfRemovedItems = e.OldItems.OfType <LandingSite>().ToList();
editedLandingSite = tempListOfRemovedItems[0];
LandingSites.Delete(editedLandingSite.LandingSiteID);
}
break;
case NotifyCollectionChangedAction.Replace:
{
List <LandingSite> tempListOfLandingSites = e.NewItems.OfType <LandingSite>().ToList();
editedLandingSite = tempListOfLandingSites[0];
LandingSites.Update(editedLandingSite); // As the IDs are unique, only one row will be effected hence first index only
}
break;
}
EntityChangedEventArgs args = new EntityChangedEventArgs(editedLandingSite.GetType().Name, editedLandingSite);
EntityChanged?.Invoke(this, args);
}
public void AddNonTerminalToLandingSites(string nonTerminal)
{
if (!LandingSites.Contains(nonTerminal))
{
LandingSites.Add(nonTerminal);
}
}
public void RemoveNonTerminalFromLandingSites(string nonTerminal)
{
if (!LandingSites.Contains(nonTerminal))
{
return;
}
LandingSites.Remove(nonTerminal);
}
public int NextRecordNumber()
{
int rv;
if (LandingSiteCollection.Count == 0)
{
rv = 1;
}
else
{
rv = LandingSites.MaxRecordNumber() + 1;;
}
return(rv);
}
public void GenerateInitialRulesFromDerivedRules()
{
if (!LandingSites.Any() || !Moveables.Any())
{
return;
}
var initialRules = ruleNumberDictionary.Values.ToList();
var derivedRules = initialRules.Where(x => !x.IsInitialRule()).ToList();
var toRemove = derivedRules.ToList();
foreach (var item in toRemove)
{
DeleteRule(item);
}
}
private void LandingSiteCollection_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
_editSuccess = false;
switch (e.Action)
{
case NotifyCollectionChangedAction.Add:
{
int newIndex = e.NewStartingIndex;
LandingSite newLandingSite = LandingSiteCollection[newIndex];
if (LandingSites.Add(newLandingSite))
{
CurrentEntity = newLandingSite;
_editSuccess = true;
}
}
break;
case NotifyCollectionChangedAction.Remove:
{
List <LandingSite> tempListOfRemovedItems = e.OldItems.OfType <LandingSite>().ToList();
if (LandingSites.Delete(tempListOfRemovedItems[0].ID))
{
_editSuccess = true;
CurrentEntity = null;
}
}
break;
case NotifyCollectionChangedAction.Replace:
{
List <LandingSite> tempList = e.NewItems.OfType <LandingSite>().ToList();
if (LandingSites.Update(tempList[0]))
{
_editSuccess = true;
CurrentEntity = tempList[0];
}
}
break;
}
}
public void GenerateDerivedRulesFromSchema()
{
if (!LandingSites.Any() || !Moveables.Any())
{
return;
}
var toAdd = new List <Rule>();
foreach (var moveable in Moveables)
{
var pop1 = new Rule(1, moveable, new[] { Epsilon }, 0, 0);
pop1.Name.Stack = new NonTerminalStack(moveable);
toAdd.Add(pop1);
foreach (var landingSiteNonTerminal in LandingSites)
{
var push = new Rule(1, landingSiteNonTerminal, new[] { moveable, landingSiteNonTerminal }, 1, 1);
push.Name.Stack = new NonTerminalStack(".");
push.Production[1].Stack = new NonTerminalStack(".");
push.Production[1].Stack = push.Production[1].Stack.Push(moveable);
toAdd.Add(push);
}
var pop2 = new Rule(1, "IP", new[] { moveable, "VP" }, 1, 1);
pop2.Name.Stack = new NonTerminalStack(".");
pop2.Name.Stack = pop2.Name.Stack.Push(moveable);
pop2.Production[0].Stack = new NonTerminalStack(moveable);
pop2.Production[1].Stack = new NonTerminalStack(".");
toAdd.Add(pop2);
}
foreach (var item in toAdd)
{
AddRule(item);
}
}
