/// <summary>
/// Initializes a new instance of the ParseState class.
/// </summary>
/// <param name="concrete">The concrete used to parse.</param>
public ParseState(Concrete concrete)
{
this.concrete = concrete;
this.startCat = concrete.GetStartCat();
this.items = new Trie();
this.chart = new Chart(concrete);
ConcreteCategory tempcat = concrete.GetStartCat();
for (int fid = tempcat.FirstFID; fid <= tempcat.LastFID; fid++)
{
var prods = this.chart.ExpandForest(fid);
foreach (ProductionApply k in prods)
{
k.Function.FixSymbols();
int lbl = 0;
foreach (Symbol[] sym in k.Function.Sequences)
{
var activeItem = new ActiveItem(0, 0, k.Function, sym.ToList<Symbol>(), k.Domain().ToList<int>(), fid, lbl);
this.items.Value.Add(activeItem);
lbl++;
}
}
}
this.items.InsertChain(new List<string>(), this.items);
}
/// <summary>
/// Initializes a new instance of the Chart class.
/// </summary>
/// <param name="concrete">The concrete grammar we want to use.</param>
public Chart(Concrete concrete)
{
this.active = new Dictionary<int, Dictionary<int, List<ActiveItem>>>();
this.actives = new List<Dictionary<int, Dictionary<int, List<ActiveItem>>>>();
this.passive = new Dictionary<string, int>();
this.Forest = new Dictionary<int, List<Production>>();
this.NextId = concrete.FId; // TODO fix so that it uses totalFID instead
this.Offset = 0;
// TODO check if we need to copy or not (copy now to be safe)
foreach (KeyValuePair<int, List<Production>> entry in concrete.Productions)
{
var temp = new List<Production>();
foreach (Production p in entry.Value)
{
temp.Add(p);
}
this.Forest.Add(entry.Key, temp);
}
}
