//=========================================================================================
public StateScannerState GetNextState(Literal literal)
{
foreach (var oEntry in this.Entries)
{
if (string.Compare(oEntry.Key.Name, literal.Name, true) == 0)
return oEntry.Value;
}
return this.ElseState;
}
//=========================================================================================
internal void AddLink(Literal literal, StateScannerState state)
{
this.Entries.Add(literal, state);
}
//=========================================================================================
Literal[] GetLiteralsFromString(string definition)
{
string[] textLiterals = definition.Split();
Literal[] literals = new Literal[textLiterals.Length];
for (int i = 0; i < textLiterals.Length; i++)
{
var oLiteral = this.GetLiteralByName(textLiterals[i]);
if (oLiteral == null)
throw new NullReferenceException(textLiterals[i]);
literals[i] = oLiteral;
}
return literals;
}
//=========================================================================================
/// <summary>Создать новое состояние или взять уже существующее, в которое мы переходим из указанного при получении на входе указанного символа.</summary>
StateScannerState CreateOrGetState(StateScannerState from, Literal incoming, string stateName, string tokenName)
{
StateScannerState oState;
if (from.Entries.TryGetValue(incoming, out oState))
{
if (oState == this.EndState)
{
string sMsg = string.Format("Ambiguous link {0}->{1}: {2} or {3}.",
from.Name, incoming.Name, from.ResultTokenName, tokenName);
throw new ArgumentException(sMsg);
}
return oState;
}
StateScannerState oNewState = new StateScannerState(stateName);
from.AddLink(incoming, oNewState);
this.States.Add(oNewState);
oNewState.ResultTokenName = tokenName;
return oNewState;
}
