def test_some(self):
X, Y = Var('X'), Var('Y')
eq_(eval(begin(parse_text(some(char(X), X, Y), '222'), Y)),
['2', '2', '2'])
eq_(eval(begin(parse_text(some(char(X), X, Y), '234'), Y)), ['2'])
assert_raises(NoSolutionFound, eval,
begin(parse_text(some(char(X), X, Y), ''), Y))
def test_some2(self):
X = Var('X')
eq_(eval(parse_text(and_p(some(char(X)), char('4')), '224')), '4')
eq_(eval(parse_text(and_p(some(char(X)), cut, char('4')), '224')), '4')
assert_raises(
NoSolutionFound, eval,
parse_text(and_p(some(char(X)), char('3'), char('5')), '2234'))
def fun_macro_grammar(klass1, klass2):
return (
# fun. a(x)[...], fun. a(x) <= at[...][...]
(getattr(vv.name)+
any(~call(__.args) +assign(__.args, getvalue_default(__.args, ()))
+ some(getitem_to_list(__.body), __.body, __.bodies),
(__.args, __.bodies), vv.rules)
+eoi+make_fun1(vv.name, vv.rules, klass2))
# fun. a(x) >= [...], fun. a(x) <= at[...][...]
| (getattr(vv.name)+call(vv.args)+ge(vv.body)+eoi
+make_fun2(vv.name,vv.args, vv.body, klass2))
# fun. a(x) <= [...], fun. a(x) <= at[...][...]
| (getattr(vv.name)+call(vv.args)+le(vv.body)+eoi
+make_fun3(vv.name,vv.args, vv.body, klass2))
# fun. a== at(..)[...]
| (getattr(vv.name)+eq(vv.rules)+eoi
+make_fun4(vv.name, vv.rules, klass1))
# fun. a>= at(..)[...]
| (getattr(vv.name)+ge(vv.rules)+eoi+make_fun5(vv.name,vv.rules, klass2))
# fun. a<= at(..)[...]
| (getattr(vv.name)+le(vv.rules)+eoi+make_fun6(vv.name,vv.rules, klass2))
# fun(args) [...](args)[...][...]
| (some(may(call(__.args)) +assign(__.args, getvalue_default(__.args, ()))
+ some(getitem_to_list(__.body), __.body, __.bodies),
(__.args, __.bodies), vv.rules)
+eoi+make_fun7(vv.rules, klass1))
# - fun.a/3,
| (getattr(vv.name)+neg+div(vv.arity)+eoi
+pycall(abolish, getvar(vv.name), vv.arity))
#- fun.a(x),
| (getattr(vv.name)+call(vv.args)+neg+eoi
+make_fun8(vv.name, vv.args, klass2)) #retractall
#- fun.a(x)[1],
## | (getattr(vv.name)+call(vv.args)+getitem(vv.index)+neg+assign(result, retract(vv.name, vv.args)))
)
def test_dumy_some(self):
_, Y = DummyVar('_'), Var('Y')
eq_(eval(begin(parse_text(some(char(_), _, Y), '222'), Y)),
['2', '2', '2'])
eq_(eval(begin(parse_text(some(char(_), _, Y), '234'), Y)),
['2', '3', '4'])
assert_raises(NoSolutionFound, eval,
begin(parse_text(some(char(_), _, Y), ''), Y))
def testIndentUndent(self):
_, n, s, line = DummyVar('_'), Var('n'), Var('s'), Var('line')
space = char(' ')
ruleList = [(s,function( ((n,), some(line(n)),s(add(n,1))),
((n,), some(line(n))))),
(line,function( ((n,), times(space, n),some(letter(_)),any(space),char('\n'))))
]
eq_(eval(letr(ruleList, parse_text(s(0), 'a\n b\n c\n'))), True)
eq_(eval(letr(ruleList, parse_text(s(0), 'asd\n bdf\n cdfh\n'))), True)
def testIndentUndent(self):
_, n, s, line = DummyVar('_'), Var('n'), Var('s'), Var('line')
space = char(' ')
ruleList = [(s,
function(((n, ), some(line(n)), s(add(n, 1))),
((n, ), some(line(n))))),
(line,
function(((n, ), times(space, n), some(letter(_)),
any(space), char('\n'))))]
eq_(eval(letr(ruleList, parse_text(s(0), 'a\n b\n c\n'))), True)
eq_(eval(letr(ruleList, parse_text(s(0), 'asd\n bdf\n cdfh\n'))), True)
def test_any_some(self):
X, Y = Var('X'), Var('Y')
eq_(
eval(
begin(
parse_text(
char(X) + any(~char('b') + some(char(X))) + eoi,
'abaaaa'), X)), 'a')
def fun_macro_grammar(klass1, klass2):
return (
# fun. a(x)[...], fun. a(x) <= at[...][...]
(getattr(vv.name) + any(
~call(__.args) + assign(__.args, getvalue_default(__.args, ())) +
some(getitem_to_list(__.body), __.body, __.bodies),
(__.args, __.bodies), vv.rules) + eoi +
make_fun1(vv.name, vv.rules, klass2))
# fun. a(x) >= [...], fun. a(x) <= at[...][...]
| (getattr(vv.name) + call(vv.args) + ge(vv.body) + eoi +
make_fun2(vv.name, vv.args, vv.body, klass2))
# fun. a(x) <= [...], fun. a(x) <= at[...][...]
| (getattr(vv.name) + call(vv.args) + le(vv.body) + eoi +
make_fun3(vv.name, vv.args, vv.body, klass2))
# fun. a== at(..)[...]
| (getattr(vv.name) + eq(vv.rules) + eoi +
make_fun4(vv.name, vv.rules, klass1))
# fun. a>= at(..)[...]
| (getattr(vv.name) + ge(vv.rules) + eoi +
make_fun5(vv.name, vv.rules, klass2))
# fun. a<= at(..)[...]
| (getattr(vv.name) + le(vv.rules) + eoi +
make_fun6(vv.name, vv.rules, klass2))
# fun(args) [...](args)[...][...]
| (some(
may(call(__.args)) + assign(__.args, getvalue_default(__.args,
())) +
some(getitem_to_list(__.body), __.body, __.bodies),
(__.args, __.bodies), vv.rules) + eoi +
make_fun7(vv.rules, klass1))
# - fun.a/3,
| (getattr(vv.name) + neg + div(vv.arity) + eoi +
pycall(abolish, getvar(vv.name), vv.arity))
#- fun.a(x),
| (getattr(vv.name) + call(vv.args) + neg + eoi +
make_fun8(vv.name, vv.args, klass2)) #retractall
#- fun.a(x)[1],
## | (getattr(vv.name)+call(vv.args)+getitem(vv.index)+neg+assign(result, retract(vv.name, vv.args)))
)
def test_dumy_some(self):
_, Y = DummyVar('_'), Var('Y')
eq_(eval(begin(parse_text(some(char(_), _, Y), '222'), Y)), ['2','2','2'])
eq_(eval(begin(parse_text(some(char(_), _, Y), '234'), Y)),['2', '3', '4'])
assert_raises(NoSolutionFound, eval, begin(parse_text(some(char(_), _, Y), ''), Y))
def test_some3(self):
eq_(eval(parse_text(some(or_p(char('1'),char('2'))), '2')), True)
def test_some2(self):
X = Var('X')
eq_(eval(parse_text(and_p(some( char(X)),char('4')), '224')), '4')
eq_(eval(parse_text(and_p(some(char(X)), cut, char('4')), '224')), '4')
assert_raises(NoSolutionFound, eval, parse_text(and_p(some(char(X)), char('3'), char('5')), '2234'))
def test_some(self):
X, Y = Var('X'), Var('Y')
eq_(eval(begin(parse_text(some(char(X), X, Y), '222'), Y)), ['2','2','2'])
eq_(eval(begin(parse_text(some(char(X), X, Y), '234'), Y)), ['2'])
assert_raises(NoSolutionFound, eval, begin(parse_text(some(char(X), X, Y), ''), Y))
def test_any_some(self):
X, Y = Var('X'), Var('Y')
eq_(eval(begin(parse_text(char(X)+any(~char('b')+some(char(X)))+eoi, 'abaaaa'), X)), 'a')
def test_some3(self):
eq_(eval(parse_text(some(or_p(char('1'), char('2'))), '2')), True)
else:
clause = preparse(clause)
for x in case:
case_dict[x] = clause
return special.CaseForm(preparse(test[0]), case_dict, els_clause)
of_fun = attr_call('of')
# case(x).of(1)[write(1)].of(2,3)[write(4)].els[write(5)]
case = element(
'case',
call(vv.test) + (
#.of(1)[write(1)].of(2,3)[write(4)].els[write(5)]
(some(
of_fun(__.values) + getitem_to_list(__.clause),
(__.values, __.clause), vv.clauses) +
may(_els + getitem_to_list(vv.els)) + eoi + make_case(
vv.test,
list_tail(vv.clauses, pytuple(CASE_ELS, getvalue_default(
vv.els)))))
#/{1:[write(1)],2:[write(4)],3:[write(4)], els:[write(5)]}
## | div(vv.clauses)+eoi+make_case(vv.test, items(vv.clauses))
))
els = CASE_ELS
@builtin.function('make_loop')
def make_loop(body):
return special.LoopForm(preparse(body))
for case, clause in cases:
case = preparse(case)
if case is CASE_ELS:
els_clause = preparse(clause) if clause is not None else None
else:
clause = preparse(clause)
for x in case: case_dict[x] = clause
return special.CaseForm(preparse(test[0]), case_dict, els_clause)
of_fun = attr_call('of')
# case(x).of(1)[write(1)].of(2,3)[write(4)].els[write(5)]
case = element('case',
call(vv.test)+(
#.of(1)[write(1)].of(2,3)[write(4)].els[write(5)]
(some(of_fun(__.values)+getitem_to_list(__.clause),(__.values,__.clause), vv.clauses)
+may(_els+getitem_to_list(vv.els))+eoi
+make_case(vv.test, list_tail(vv.clauses, pytuple(CASE_ELS, getvalue_default(vv.els)))))
#/{1:[write(1)],2:[write(4)],3:[write(4)], els:[write(5)]}
## | div(vv.clauses)+eoi+make_case(vv.test, items(vv.clauses))
))
els = CASE_ELS
@builtin.function('make_loop')
def make_loop(body):
return special.LoopForm(preparse(body))
@builtin.function('make_loop_times')
def make_loop_times(body, times):
return special.LoopTimesForm(preparse(times[0]), preparse(body))