def check_dfa_language_from_answer(student_answer, other, length):
try:
A = parse_dfa(student_answer)
except RuntimeError as e:
return {'correct': False, 'feedback': str(e)}
A_words = generate_language(A, length)
B = parse_dfa(other)
B_words = generate_language(B, length)
feedback = compare_languages(A_words, B_words)
if len(feedback) == 0:
return {'correct': True}
else:
return {'correct': False, 'feedback': " / ".join(feedback)}
def language_equivalence_automaton(student_answer, other, length):
try:
A = parse_pda(student_answer)
except RuntimeError as e:
return {'correct': False, 'feedback': str(e)}
A_words = generate_language(A, length)
B = parse_pda(other)
B_words = generate_language(B, length)
feedback = compare_languages(A_words, B_words)
if len(feedback) == 0:
return {'correct': True}
else:
return {'correct': False, 'feedback': " / ".join(feedback)}
def check_dfa_language_from_words(student_answer, word_list, length):
word_list = " ".join(word_list)
try:
A = parse_dfa(student_answer)
except RuntimeError as e:
return {'correct': False, 'feedback': str(e)}
A_words = generate_language(A, length)
words = parse_word_list(word_list)
feedback = compare_languages(A_words, words)
if len(feedback) == 0:
return {'correct': True}
else:
return {'correct': False, 'feedback': " / ".join(feedback)}
