Example #1
0
def validar(sets, tipo):
    if tipo == False:
        aux = list(sets[2].values())
        for i in range(len(sets[0])):
            if '' in aux[i].values() or not sets[4]:
                return False
        automata = DFA(states=sets[0],
                       input_symbols=sets[1],
                       transitions=sets[2],
                       initial_state=sets[3],
                       final_states=sets[4])
    else:
        if sets[4]:
            automata = NFA(states=sets[0],
                           input_symbols=sets[1],
                           transitions=sets[2],
                           initial_state=sets[3],
                           final_states=sets[4])
        else:
            return False
    if automata.validate():
        del automata
        return True
    else:
        del automata
        return False
from automata.fa.dfa import DFA
# DFA which matches all binary strings ending in an odd number of '1's
dfa = DFA(
    states={'q1', 'q2', 'q4', 'q5', 'q6'},
    input_symbols={'0', '1'},
    transitions={
        'q1': {'0': 'q0', '1': 'q1'}
    },
    initial_state='q0',
    final_states={'q0'}
)

#print(dfa.read_input('01'))

dfa.validate()
Example #3
0
    if (start in Q) and (set(accept).issubset(Q)):
        initial = start
        final = accept
        break
    else:
        print(
            "Please enter STATE_STATE and ACCEPT_STATES that are in Q : {}.\nAccept states should be a valid subset of Q\n"
            .format(Q))

CURRENT_STATE = None
dfa = DFA(states=Q,
          input_symbols=SIGMA,
          transitions=transition_dict,
          initial_state=initial,
          final_states=set(final))
if dfa.validate():
    print("\nThe DFA is accepted.")
    s = input("Enter the Input String: ")
    if dfa.accepts_input(s):
        print('Accepted!')
        print("The final state that the DFA stopped on:", dfa.read_input(s))
    else:
        print('Rejected!')
else:
    print("\nThe DFA is rejected.")
""" Non-Deterministic Finite Automata (NFA) """

nfa = NFA(
    states={'q0', 'q1', 'q2'},
    input_symbols={'a', 'b'},
    transitions={