public State(State[] states, string regexPattern, bool isAcceptedState, Automaton automaton)
{
this.automaton = automaton;
this.states = states == null ? null : new List<State>(states);
this.pattern = regexPattern;
this.isAcceptedState = isAcceptedState;
}
public OnlyAcceptsSingle1()
{
//must always have an accepted state
//1 means that this state can be transitioned to if its a 1
var acceptedState = new State(null, "1", true, this);
//must always have a start state
//null means that this state cannot be transitioned to
var startState = new State(new State[]{
acceptedState
}, null, false, this);
//is there a better way to set the starting state, probably not, what else would you do
this.startState = this.currentState = startState;
}
void Init(char input)
{
//must always have an accepted state
//0 means that this state can be transitioned to if its a 0
var acceptedState = new State(null,input.ToString(), true, this);
//must always have a start state
//this state can transition to itself, is there a better way to code this
State startState = null;
startState = new State(new State[]{
acceptedState
}, null, false, this);
//is there a better way to set the starting state, probably not, what else would you do
this.startState = this.currentState = startState;
}
public AcceptsAnyNumberof1sFollowedBySingleZero()
{
//must always have an accepted state
//0 means that this state can be transitioned to if its a 0
var acceptedState = new State(null, "0", true, this);
//must always have a start state
//this state can transition to itself, is there a better way to code this
State startState = null;
startState = new State(new State[]{
acceptedState
}, "1", false, this);
startState.AddState(startState);
//is there a better way to set the starting state, probably not, what else would you do
this.startState = this.currentState = startState;
}
public void AddState(State state)
{
this.states.Add(state);
}