public Transition(State srcState, State targetState, Condition condition,
bool returnCharAfterTransition = false)
{
m_sourceState = srcState;
m_targetState = targetState;
m_returnCharAfterTransition = returnCharAfterTransition;
m_condition = condition;
}
private void resetState()
{
m_curState = m_initState;
m_context.Reset();
}
private bool onChar(char ch)
{
bool bTransit = false;
for (int i = 0; i < m_curState.Transitions.Count; i++)
{
Transition t = m_curState.Transitions[i];
if (t.CanTransitOnChar(this.m_context, ch))
{
if (m_curState == t.TargetState)
{
m_context.StateToken.Append(ch);
// run actions of transition
if (t.TransitionAction != null) t.TransitionAction(m_context, ch);
}
else
{
// transit state
m_curState = t.TargetState;
// run actions of transition
if (t.TransitionAction != null) t.TransitionAction(m_context, ch);
if (t.ReturnCharAfterTransition) m_context.ReturnChar();
// clear token after state transition
m_context.StateToken.Clear();
}
bTransit = true;
break;
}
}
return bTransit;
}
protected State createState(string name, bool initState = false)
{
State state = new State(name, m_context);
if (initState) m_initState = state;
return state;
}
public StateTransitionHelper(State source, State target, StateContext context)
{
m_source = source;
m_target = target;
m_context = context;
}
public StateTransitionHelper To(State target)
{
return new StateTransitionHelper(this, target, m_context);
}