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-rw-r--r--prolog/problems/family_relations/brother_2/common.py77
-rw-r--r--prolog/problems/family_relations/brother_2/sl.py51
-rw-r--r--prolog/problems/family_relations/father_2/common.py97
-rw-r--r--prolog/problems/family_relations/father_2/en.py17
-rw-r--r--prolog/problems/family_relations/father_2/sl.py53
-rw-r--r--prolog/problems/family_relations/mother_2/common.py84
-rw-r--r--prolog/problems/family_relations/mother_2/sl.py53
-rw-r--r--prolog/problems/family_relations/sister_2/common.py92
-rw-r--r--prolog/problems/family_relations/sister_2/sl.py11
9 files changed, 530 insertions, 5 deletions
diff --git a/prolog/problems/family_relations/brother_2/common.py b/prolog/problems/family_relations/brother_2/common.py
index 6038a13..41512e6 100644
--- a/prolog/problems/family_relations/brother_2/common.py
+++ b/prolog/problems/family_relations/brother_2/common.py
@@ -13,3 +13,80 @@ brother(X, Y) :-
male(X),
X \== Y.
'''
+
+import prolog.engine
+import prolog.util
+import server.problems
+import socket
+
+def test(session, program):
+ # TODO: change queries and answers (these are for sister/2)
+ # Test queries and expected answers (values of X).
+ queries = [
+ ('sister(melanie, X)', set(['andrew'])),
+ ('sister(X, andrew)', set(['melanie'])),
+ ('sister(X, _)', set(['michelle', 'daniela', 'patricia', 'luana', 'sally', 'melanie', 'nevia', 'vanessa', 'anna'])),
+ ]
+
+ code = program + '\n' + server.problems.load_facts('prolog', facts).facts
+
+ engine_id = None
+ try:
+ engine_id, output = prolog.engine.create(code=code, timeout=1.0)
+ if not engine_id:
+ return 0, len(queries)
+
+ n_correct = 0
+ for query, solution in queries:
+ answers, error = prolog.engine.ask_all(engine_id, query=query, timeout=1.0)
+ if answers and answers[-1] != 'timed out':
+ values_x = set([ans.get('X') for ans, constraints in answers])
+ if values_x == solution:
+ n_correct += 1
+ finally:
+ if engine_id:
+ prolog.engine.destroy(engine_id)
+
+ return n_correct, len(queries)
+
+def general_hint():
+ pass
+
+def hint(session, program):
+ # tokens = prolog.util.tokenize(program)
+
+ code = program + '\n' + server.problems.load_facts('prolog', facts).facts
+ engine_id = None
+ try:
+ engine_id, output = prolog.engine.create(code=code, timeout=1.0)
+ if not engine_id:
+ raise Exception('Prolog engine failed to create.')
+
+ # X must be male
+ if prolog.engine.ask_truth(engine_id, 'female(X), brother(X, _)'):
+ return [{'id': 'x_must_be_male'}]
+
+ # X and Y must have a common parent
+ if prolog.engine.ask_truth(engine_id,
+ 'brother(X, Y), \+ (parent(P, X), parent(P, Y))'):
+ return [{'id': 'common_parent_needed'}]
+
+ # Y can be of any gender, incl. female
+ if prolog.engine.ask_one(engine_id,
+ 'brother(_, Y), female(Y)') == 'false':
+ return [{'id': 'Y_can_be_of_any_gender'}]
+
+ # X and Y must be different
+ ans = prolog.engine.ask_one(engine_id,
+ 'setof(X, (member(X, [william, alessandro, andrew]), brother(X, X)), L), length(L, N).')
+ if ans.get('N') == '3':
+ return [{'id': 'x_y_must_be_different'}]
+
+ except socket.timeout as ex:
+ pass
+
+ finally:
+ if engine_id:
+ prolog.engine.destroy(engine_id)
+
+ return None
diff --git a/prolog/problems/family_relations/brother_2/sl.py b/prolog/problems/family_relations/brother_2/sl.py
new file mode 100644
index 0000000..f9db389
--- /dev/null
+++ b/prolog/problems/family_relations/brother_2/sl.py
@@ -0,0 +1,51 @@
+# coding=utf-8
+
+id = 97
+name = 'brother/2'
+slug = 'X je brat od Y'
+
+description = '''\
+<p><code>brother(X, Y)</code>: <code>X</code> je brat od <code>Y</code>.</p>
+<pre>
+ ?- brother(jeffrey, X).
+ X = william ;
+ X = sally.
+</pre>'''
+
+hint = {
+ 'general_hint_1': '''\
+<p><img src="Sister-1.png" /></p>
+''',
+
+ 'general_hint_2': '''\
+<p><img src="Sister-2.png" /></p>
+''',
+
+ 'general_hint_3': '''\
+<p><img src="Sister-2.png" /></p>
+<pre>
+parent(P, X)
+parent(P, Y)
+male(X)
+</pre>
+''',
+
+ 'x_y_must_be_different': '''\
+<p>Si pomislil, da sta <code>X</code> in <code>Y</code> lahko ista oseba? Poskusi naslednjo poizvedbo:</p>
+<pre>
+?- brother(william, Y).
+</pre>
+''',
+
+ 'x_must_be_male': '''\
+<p>Brat je navadno moškega spola.</p>
+''',
+
+ 'Y_can_be_of_any_gender': '''\
+<p><code>Y</code> je pravzaprav lahko poljubnega spola.</p>
+''',
+
+ 'common_parent_needed': '''\
+<p>Dobro bi bilo, da imata <code>X</code> in <code>Y</code> vsaj enega skupnega starša.</p>
+''',
+}
diff --git a/prolog/problems/family_relations/father_2/common.py b/prolog/problems/family_relations/father_2/common.py
new file mode 100644
index 0000000..e1b46fd
--- /dev/null
+++ b/prolog/problems/family_relations/father_2/common.py
@@ -0,0 +1,97 @@
+# coding=utf-8
+
+id = 999 # TODO: new id has to be defined for this problem
+group = 'family_relations'
+number = 999 # TODO: this should be problem #2
+visible = True
+facts = 'family_relations'
+
+solution = '''\
+father(X, Y) :-
+ parent(X, Y),
+ male(X).
+'''
+
+import prolog.engine
+import prolog.util
+import server.problems
+
+def test(session, program):
+ # TODO: change queries and answers (these are for sister/2)
+ # Test queries and expected answers (values of X).
+ queries = [
+ ('sister(melanie, X)', set(['andrew'])),
+ ('sister(X, andrew)', set(['melanie'])),
+ ('sister(X, _)', set(['michelle', 'daniela', 'patricia', 'luana', 'sally', 'melanie', 'nevia', 'vanessa', 'anna'])),
+ ]
+
+ code = program + '\n' + server.problems.load_facts('prolog', facts).facts
+
+ engine_id = None
+ try:
+ engine_id, output = prolog.engine.create(code=code, timeout=1.0)
+ if not engine_id:
+ return 0, len(queries)
+
+ n_correct = 0
+ for query, solution in queries:
+ answers, error = prolog.engine.ask_all(engine_id, query=query, timeout=1.0)
+ if answers and answers[-1] != 'timed out':
+ values_x = set([ans.get('X') for ans, constraints in answers])
+ if values_x == solution:
+ n_correct += 1
+ finally:
+ if engine_id:
+ prolog.engine.destroy(engine_id)
+
+ return n_correct, len(queries)
+
+def general_hint():
+ pass
+
+def hint(session, program):
+ tokens = prolog.util.tokenize(program)
+
+ code = program + '\n' + server.problems.load_facts('prolog', facts).facts
+ engine_id = None
+ try:
+ engine_id, output = prolog.engine.create(code=code, timeout=1.0)
+ if not engine_id:
+ raise Exception('Prolog engine failed to create.')
+
+ # OR (;) instead of AND (,)
+ # this hint has to be before the next two
+ # as otherwise those two would always override it
+ # and not convey the same (amount of) help/information
+ if prolog.util.Token('SEMI', ';') in tokens and prolog.engine.ask_truth(engine_id,
+ 'findall(_, father(X, Y), L1), length(L1, N), \
+ findall(_, (parent(X, Y) ; male(X)), L2), length(L2, N)'):
+ return [{'id': 'or_instead_of_and'}]
+
+ # X must be male
+ if prolog.engine.ask_truth(engine_id, 'female(X), father(X, _)'):
+ return [{'id': 'x_must_be_male'}]
+
+ # X must be a parent
+ if prolog.engine.ask_truth(engine_id,
+ 'father(X, _), \+ parent(X, _)'):
+ return [{'id': 'x_must_be_parent'}]
+
+ # Y can be of any gender, incl. female
+ if prolog.engine.ask_one(engine_id,
+ 'father(_, Y), female(Y)') == 'false':
+ return [{'id': 'y_can_be_of_any_gender'}]
+
+ # Y does not necessarily need to be a parent
+ if prolog.engine.ask_one(engine_id,
+ 'father(_, Y), \+ parent(Y, _)') == 'false':
+ return [{'id': 'y_need_not_be_parent'}]
+
+ except socket.timeout as ex:
+ pass
+
+ finally:
+ if engine_id:
+ prolog.engine.destroy(engine_id)
+
+ return None
diff --git a/prolog/problems/family_relations/father_2/en.py b/prolog/problems/family_relations/father_2/en.py
new file mode 100644
index 0000000..108bb9b
--- /dev/null
+++ b/prolog/problems/family_relations/father_2/en.py
@@ -0,0 +1,17 @@
+# coding=utf-8
+
+id = 94
+name = 'mother/2'
+slug = 'the mother-child relation'
+
+description = '''\
+<p><code>mother(M, C)</code>: <code>M</code> is the mother of <code>C</code>.</p>
+<pre>
+ ?- mother(tina, william).
+ true.
+ ?- mother(nevia, X).
+ X = luana ;
+ X = daniela.
+</pre>'''
+
+hint = {}
diff --git a/prolog/problems/family_relations/father_2/sl.py b/prolog/problems/family_relations/father_2/sl.py
new file mode 100644
index 0000000..c9c38b7
--- /dev/null
+++ b/prolog/problems/family_relations/father_2/sl.py
@@ -0,0 +1,53 @@
+# coding=utf-8
+
+id = 94
+name = 'mother/2'
+slug = 'X je mama od Y'
+
+description = '''\
+<p><code>mother(X, Y)</code>: <code>X</code> je mama od <code>Y</code>.</p>
+<pre>
+ ?- mother(tina, william).
+ true.
+ ?- mother(nevia, X).
+ X = luana ;
+ X = daniela.
+</pre>'''
+
+hint = {
+ 'general_hint_1': '''\
+<p><img src="Father-1.png" /></p>
+<p>Loni naj zbriše imena relacij (parent, mother) s te slike!</p>
+''',
+
+ 'general_hint_2': '''\
+<p><img src="Father-1.png" /></p>
+''',
+
+ 'general_hint_3': '''\
+<p>Če je <code>X</code> ženska in je hkrati <code>X</code> starš od <code>Y</code>,
+potem je <code>X</code> mama od <code>Y</code>.</p>
+''',
+
+ 'or_instead_of_and': '''\
+<p>Si morda uporabil podpičje (ki pomeni ALI) namesto vejice (ki pomeni IN)?</p>
+''',
+
+ 'x_must_be_male': '''\
+<p>Oče je navadno moškega spola.</p>
+<p><img src="Father-2.png" /></p>
+''',
+
+ 'x_must_be_parent': '''\
+<p>Oče naj bi imel vsaj enega otroka... torej je starš od nekoga.</p>
+<p><img src="Father-3.png" /></p>
+''',
+
+ 'y_can_be_of_any_gender': '''\
+<p><code>Y</code> je pravzaprav lahko poljubnega spola.</p>
+''',
+
+ 'y_need_not_be_parent': '''\
+<p><code>Y</code> pravzaprav ne rabi imeti otrok, da ima očeta...</p>
+''',
+}
diff --git a/prolog/problems/family_relations/mother_2/common.py b/prolog/problems/family_relations/mother_2/common.py
index 65087b4..613b721 100644
--- a/prolog/problems/family_relations/mother_2/common.py
+++ b/prolog/problems/family_relations/mother_2/common.py
@@ -11,3 +11,87 @@ mother(X, Y) :-
parent(X, Y),
female(X).
'''
+
+import prolog.engine
+import prolog.util
+import server.problems
+
+def test(session, program):
+ # TODO: change queries and answers (these are for sister/2)
+ # Test queries and expected answers (values of X).
+ queries = [
+ ('sister(melanie, X)', set(['andrew'])),
+ ('sister(X, andrew)', set(['melanie'])),
+ ('sister(X, _)', set(['michelle', 'daniela', 'patricia', 'luana', 'sally', 'melanie', 'nevia', 'vanessa', 'anna'])),
+ ]
+
+ code = program + '\n' + server.problems.load_facts('prolog', facts).facts
+
+ engine_id = None
+ try:
+ engine_id, output = prolog.engine.create(code=code, timeout=1.0)
+ if not engine_id:
+ return 0, len(queries)
+
+ n_correct = 0
+ for query, solution in queries:
+ answers, error = prolog.engine.ask_all(engine_id, query=query, timeout=1.0)
+ if answers and answers[-1] != 'timed out':
+ values_x = set([ans.get('X') for ans, constraints in answers])
+ if values_x == solution:
+ n_correct += 1
+ finally:
+ if engine_id:
+ prolog.engine.destroy(engine_id)
+
+ return n_correct, len(queries)
+
+def general_hint():
+ pass
+
+def hint(session, program):
+ tokens = prolog.util.tokenize(program)
+
+ code = program + '\n' + server.problems.load_facts('prolog', facts).facts
+ engine_id = None
+ try:
+ engine_id, output = prolog.engine.create(code=code, timeout=1.0)
+ if not engine_id:
+ raise Exception('Prolog engine failed to create.')
+
+ # OR (;) instead of AND (,)
+ # this hint has to be before the next two
+ # as otherwise those two would always override it
+ # and not convey the same (amount of) help/information
+ if prolog.util.Token('SEMI', ';') in tokens and prolog.engine.ask_truth(engine_id,
+ 'findall(_, mother(X, Y), L1), length(L1, N), \
+ findall(_, (parent(X, Y) ; female(X)), L2), length(L2, N)'):
+ return [{'id': 'or_instead_of_and'}]
+
+ # X must be female
+ if prolog.engine.ask_truth(engine_id, 'male(X), mother(X, _)'):
+ return [{'id': 'x_must_be_female'}]
+
+ # X must be a parent
+ if prolog.engine.ask_truth(engine_id,
+ 'mother(X, _), \+ parent(X, _)'):
+ return [{'id': 'x_must_be_parent'}]
+
+ # Y can be of any gender, incl. male
+ if prolog.engine.ask_one(engine_id,
+ 'mother(_, Y), male(Y)') == 'false':
+ return [{'id': 'y_can_be_of_any_gender'}]
+
+ # Y does not necessarily need to be a parent
+ if prolog.engine.ask_one(engine_id,
+ 'mother(_, Y), \+ parent(Y, _)') == 'false':
+ return [{'id': 'y_need_not_be_parent'}]
+
+ except socket.timeout as ex:
+ pass
+
+ finally:
+ if engine_id:
+ prolog.engine.destroy(engine_id)
+
+ return None
diff --git a/prolog/problems/family_relations/mother_2/sl.py b/prolog/problems/family_relations/mother_2/sl.py
new file mode 100644
index 0000000..8923eb5
--- /dev/null
+++ b/prolog/problems/family_relations/mother_2/sl.py
@@ -0,0 +1,53 @@
+# coding=utf-8
+
+id = 94
+name = 'mother/2'
+slug = 'X je mama od Y'
+
+description = '''\
+<p><code>mother(X, Y)</code>: <code>X</code> je mama od <code>Y</code>.</p>
+<pre>
+ ?- mother(tina, william).
+ true.
+ ?- mother(nevia, X).
+ X = luana ;
+ X = daniela.
+</pre>'''
+
+hint = {
+ 'general_hint_1': '''\
+<p><img src="Mother-1.png" /></p>
+<p>Loni naj zbriše imena relacij (parent, mother) s te slike!</p>
+''',
+
+ 'general_hint_2': '''\
+<p><img src="Mother-1.png" /></p>
+''',
+
+ 'general_hint_3': '''\
+<p>Če je <code>X</code> ženska in je hkrati <code>X</code> starš od <code>Y</code>,
+potem je <code>X</code> mama od <code>Y</code>.</p>
+''',
+
+ 'or_instead_of_and': '''\
+<p>Si morda uporabil podpičje (ki pomeni ALI) namesto vejice (ki pomeni IN)?</p>
+''',
+
+ 'x_must_be_female': '''\
+<p>Mama je navadno ženskega spola.</p>
+<p><img src="Mother-2.png" /></p>
+''',
+
+ 'x_must_be_parent': '''\
+<p>Mama naj bi imela vsaj enega otroka... torej je starš od nekoga.</p>
+<p><img src="Mother-3.png" /></p>
+''',
+
+ 'y_can_be_of_any_gender': '''\
+<p><code>Y</code> je pravzaprav lahko poljubnega spola.</p>
+''',
+
+ 'y_need_not_be_parent': '''\
+<p><code>Y</code> pravzaprav ne rabi imeti otrok, da ima mamo...</p>
+''',
+}
diff --git a/prolog/problems/family_relations/sister_2/common.py b/prolog/problems/family_relations/sister_2/common.py
index 96ff47d..e18a092 100644
--- a/prolog/problems/family_relations/sister_2/common.py
+++ b/prolog/problems/family_relations/sister_2/common.py
@@ -15,6 +15,7 @@ sister(X, Y) :-
'''
import prolog.engine
+import prolog.util
import server.problems
def test(session, program):
@@ -46,7 +47,94 @@ def test(session, program):
return n_correct, len(queries)
+def general_hint():
+ pass
+
def hint(session, program):
- if '\=' not in program and '\==' not in program:
- return [{'id': 'x_y_must_be_different'}]
+ # how do I know which general hints were already shown?
+ # how do I know enough time has elapsed for general hints to be shown?
+ # how do I know whether the hint button was pressed?
+ # should we have another hint button which appears in hint window (like more...)
+ # when a hint is available after testing the current version of the program
+ # and this button triggers code-specific hints (i.e. non-general ones)
+
+ # one way to do hints is to use a hierarchy of hints...
+ # similar to how some rule-based systems work
+ # the trigger-testing could be easier that way as well
+ # what I have in mind is:
+ # e.g. when I test if X is sister to itself, I've already done other trigger-tests
+ # and I don't need to do them again
+
+ # first general hints (triggered by the hint button)
+ # do we do it like this? this button triggers general hints only?
+ # not sure this is ok.. discuss with others (include Janez)
+
+ # if hbutton.pressed:
+ # trigger generalhint(#buttonpress)
+
+ # code-specific hints next
+
+ # tokenize (and similar) only if *needed* for a given exercise
+ # to reduce server processor load
+ tokens = prolog.util.tokenize(program)
+
+ # start the engine to unit-test triggers for hints
+ code = program + '\n' + server.problems.load_facts('prolog', facts).facts
+ engine_id = None
+ try:
+ engine_id, output = prolog.engine.create(code=code, timeout=1.0)
+ if not engine_id:
+ raise Exception('Prolog engine failed to create.')
+
+ # X must be female
+ if prolog.engine.ask_truth(engine_id, 'male(X), sister(X, _)'):
+ return [{'id': 'x_must_be_female'}]
+
+ # X and Y must have a common parent
+ if prolog.engine.ask_truth(engine_id,
+ 'sister(X, Y), \+ (parent(P, X), parent(P, Y))'):
+ return [{'id': 'common_parent_needed'}]
+
+ # Y can be of any gender, incl. male
+ # as this is after previous hints, by this stage the code probably
+ # does return some sensible results already
+ # this is an example of using the ordering of hints for easier trigger checks
+ if prolog.engine.ask_one(engine_id,
+ 'sister(_, Y), male(Y)') == 'false':
+ return [{'id': 'Y_can_be_of_any_gender'}]
+
+ # X and Y must be different
+ # this is the last code-specific hint (when everything else doesn't trigger anymore)
+ ans = prolog.engine.ask_one(engine_id,
+ 'setof(X, (member(X, [sally, nevia, vanessa]), sister(X, X)), L), length(L, N).')
+ if ans.get('N') == '3':
+ return [{'id': 'x_y_must_be_different'}]
+
+ # last hints are connected with programming style
+ # here, this means detecting such code:
+ # parent(P1, X), parent(P2, Y), P1 == P2 (or P1 = P2)
+ # I guess program tokens can be used for this
+ # do we require that the program is correct for this?
+ # or is it enough that this is after ALL code-specific hints AND it has to trigger?
+
+ # regular expressions, anyone?
+
+ # QUESTION to discuss:
+ # where do AI hints come into play?
+ # only after all code-specific and non stylistic hints are exhausted?
+ # or randomly before? or?
+
+ # QUESTION to discuss:
+ # I suggest hint triggers (if code-based or also token-based?)
+ # are used as CLASSES of unit tests
+ # although.. this makes random counterexamples harder to implement
+ # (does it?)
+
+ except socket.timeout as ex:
+ pass
+
+ finally:
+ if engine_id:
+ prolog.engine.destroy(engine_id)
+
return None
diff --git a/prolog/problems/family_relations/sister_2/sl.py b/prolog/problems/family_relations/sister_2/sl.py
index c867567..5965bda 100644
--- a/prolog/problems/family_relations/sister_2/sl.py
+++ b/prolog/problems/family_relations/sister_2/sl.py
@@ -13,15 +13,20 @@ description = '''\
hint = {
'general_hint_1': '''\
-<p>Show Fig. #1 here.</p>
+<p><img src="Sister-1.png" /></p>
''',
'general_hint_2': '''\
-<p>Show Fig. #2 here.</p>
+<p><img src="Sister-2.png" /></p>
''',
'general_hint_3': '''\
-<p>Show Fig. #3 here.</p>
+<p><img src="Sister-2.png" /></p>
+<pre>
+parent(P, X)
+parent(P, Y)
+female(X)
+</pre>
''',
'x_y_must_be_different': '''\