/// <summary>Proceed input sequence through FSM</summary>
/// <param name="inputSequence">Input sequence of '0' and '1' symbols</param>
/// <returns>Sequence of the FSM execution</returns>
public string Process(string inputSequence)
{
char currentState = '$';
var statesSequence = new List <char>();
statesSequence.Add(currentState);
foreach (var symbol in inputSequence.ToArray())
{
currentState = TransitionsTable.Single(t => t.State == currentState).GetNewState(symbol);
statesSequence.Add(currentState);
}
return(new string(statesSequence.ToArray()));
}
/// <summary>
/// Initializes a new instance of the <see cref="Context"/> class.
/// </summary>
/// <param name="transitionsTable">The transitions table, which holds the structure of the inner states</param>
/// <exception cref="ArgumentNullException">transitionsTable</exception>
/// <exception cref="InvalidConfigException"></exception>
public Context(TransitionsTable transitionsTable)
{
if (transitionsTable == null)
throw new ArgumentNullException(nameof(transitionsTable));
//Find inital state
foreach (var transitionEntry in transitionsTable)
{
this.transitionsDict.Add(transitionEntry.Transition, stateFactory.CreateState(transitionEntry.StateType, transitionEntry.StateName));
#if NET35
if (transitionEntry.Transition.ToString().Contains("Initial"))
this.InitialState = this.transitionsDict[transitionEntry.Transition];
#else
if (transitionEntry.Transition.ToString().Contains("Initial", StringComparison.Ordinal))
this.InitialState = this.transitionsDict[transitionEntry.Transition];
#endif
}
if (this.InitialState == null)
throw new InvalidConfigException(EM.EMSm.Properties.Resources.NoInitialStateDefinedMessage);
this.CurrentState = this.InitialState;
}
