def evaluate(self, subj, obj):
if not subj.startswith('http://'):
subj = pathname2url(subj)
p = N3Loader()
p.parse(subj, format='n3')
f = Formula(p)
return f
def evaluate(self, subj, obj):
# need an N3 loader to get rules and facts first
f = Formula()
for conjunct in subj:
f.patterns.extend(conjunct.patterns)
f.rules = list(f.getRules())
f.facts = list(f.getFacts())
return f
def evaluate(self, subj, obj):
#this is trickier:
#create a rete, run it until no more new facts are found
#return back the formula
print "here!"
rules = subj.rules
#there may be facts in the rules file
facts = subj.facts
interp = Interpreter(rules)
#print "patterns:"
# for i in subj.patterns:
# print i
for i in rules:
print "rule:", i
#print "Ground fact(s): ", len(facts)
#print facts
interp.addFacts(Set(facts), initialSet=True)
interp.run()
print "interpreter sucessfully ran"
print len(interp.inferredFacts)
#create a new formula with the new facts + the stuff in subj and return it
f = Formula()
# copy all of the patterns
f.patterns.extend(subj.patterns)
#add the new ones
for i in interp.inferredFacts:
f.patterns.append(Pattern(i.s, i.p, i.o))
f.rules = f.getRules()
f.facts = f.getFacts()
return f