diff options
Diffstat (limited to 'prolog/problems/lists/memb_2/common.py')
| -rw-r--r-- | prolog/problems/lists/memb_2/common.py | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/prolog/problems/lists/memb_2/common.py b/prolog/problems/lists/memb_2/common.py index c3f4dde..9ac56f6 100644 --- a/prolog/problems/lists/memb_2/common.py +++ b/prolog/problems/lists/memb_2/common.py @@ -2,6 +2,9 @@ from operator import itemgetter import prolog.engine +import prolog.util +import socket +from server.hints import Hint, HintPopup import server.problems id = 103 @@ -15,6 +18,13 @@ memb(X, [_|T]) :- memb(X, T). ''' +hint_type = { + 'eq_instead_of_equ_markup': HintPopup('eq_instead_of_equ_markup'), + 'eq_instead_of_equ': Hint('eq_instead_of_equ'), + 'predicate_always_false': Hint('predicate_always_false'), + 'final_hint': Hint('final_hint'), +} + test_cases = [ ('memb(c, [X])', [{'X': 'c'}]), @@ -39,8 +49,35 @@ def test(code, aux_code): prolog.engine.destroy(engine_id) hints = [{'id': 'test_results', 'args': {'passed': n_correct, 'total': len(test_cases)}}] + if n_correct == len(test_cases): + hints += [{'id': 'final_hint'}] return n_correct, len(test_cases), hints def hint(code, aux_code): - # TODO + tokens = prolog.util.tokenize(code) + + try: + engine_id, output = prolog.engine.create(code=code+aux_code, timeout=1.0) + + # gender testing is redundant + # this is not necessarily wrong, but worth mentioning anyway + targets = [prolog.util.Token('EQ', '==')] + marks = [(t.pos, t.pos + len(t.val)) for t in tokens if t in targets] + if marks: + return [{'id': 'eq_instead_of_equ_markup', 'start': m[0], 'end': m[1]} for m in marks] + \ + [{'id': 'eq_instead_of_equ'}] + + # target predicate seems to always be false + if not prolog.engine.ask_truth(engine_id, 'grandparent(_, _)'): + return [{'id': 'predicate_always_false'}] + + + except socket.timeout as ex: + pass + + finally: + if engine_id: + prolog.engine.destroy(engine_id) + return [] + |