def test_tokenize_list():
token = tokenize_yaml(YAML_LIST)
expected = ListToken(
[
ScalarToken(True, 3, 6),
ScalarToken(False, 10, 14),
ScalarToken(None, 18, 21),
],
1,
22,
)
assert token == expected
def test_tokenize_list():
token = tokenize_json("[true, false, null]")
expected = ListToken(
[ScalarToken(True, 1, 4), ScalarToken(False, 7, 11), ScalarToken(None, 14, 17)],
0,
18,
)
assert token == expected
assert token.value == [True, False, None]
assert token.lookup([0]).value is True
assert token.lookup([0]).string == "true"
assert token.lookup([0]).start.char_index == 1
assert token.lookup([0]).end.char_index == 4
def test_tokenize_floats():
token = tokenize_json("[100.0, 1.0E+2, 1E+2]")
expected = ListToken(
[
ScalarToken(100.0, 1, 5),
ScalarToken(100.0, 8, 13),
ScalarToken(100.0, 16, 19),
],
0,
20,
)
assert token == expected
assert token.value == [100.0, 1.0e2, 1e2]
assert token.lookup([0]).value == 100.0
assert token.lookup([0]).string == "100.0"
assert token.lookup([0]).start.char_index == 1
assert token.lookup([0]).end.char_index == 5
def test_tokenize_whitespace():
token = tokenize_json("{ }")
expected = DictToken({}, 0, 2)
assert token == expected
assert token.value == {}
assert token.string == "{ }"
token = tokenize_json('{ "a" : 1 }')
expected = DictToken({ScalarToken("a", 2, 4): ScalarToken(1, 9, 9)}, 0, 11)
assert token == expected
assert token.value == {"a": 1}
assert token.lookup(["a"]).value == 1
assert token.lookup(["a"]).string == "1"
assert token.lookup(["a"]).start.char_index == 9
assert token.lookup(["a"]).end.char_index == 9
assert token.lookup_key(["a"]).value == "a"
assert token.lookup_key(["a"]).string == '"a"'
assert token.lookup_key(["a"]).start.char_index == 2
assert token.lookup_key(["a"]).end.char_index == 4
def test_tokenize_object():
token = tokenize_json('{"a": [1, 2, 3], "b": "test"}')
expected = DictToken(
{
ScalarToken("a", 1, 3):
ListToken(
[
ScalarToken(1, 7, 7),
ScalarToken(2, 10, 10),
ScalarToken(3, 13, 13)
],
6,
14,
),
ScalarToken("b", 17, 19):
ScalarToken("test", 22, 27),
},
0,
28,
)
assert repr(token) == 'DictToken(\'{"a": [1, 2, 3], "b": "test"}\')'
assert token == expected
assert token.value == {"a": [1, 2, 3], "b": "test"}
assert token.lookup(["a"]).value == [1, 2, 3]
assert token.lookup(["a"]).string == "[1, 2, 3]"
assert token.lookup(["a"]).start.line_no == 1
assert token.lookup(["a"]).start.column_no == 7
assert token.lookup_key(["a"]).value == "a"
assert token.lookup_key(["a"]).string == '"a"'
assert token.lookup_key(["a"]).start.char_index == 1
assert token.lookup_key(["a"]).end.char_index == 3
def _scan_once(string: str, idx: int) -> typing.Tuple[Token, int]:
try:
nextchar = string[idx]
except IndexError:
raise StopIteration(idx) from None
if nextchar == '"':
value, end = parse_string(string, idx + 1, strict)
return ScalarToken(value, idx, end - 1, content), end
elif nextchar == "{":
value, end = parse_object((string, idx + 1), strict, _scan_once,
memo, content)
return DictToken(value, idx, end - 1, content), end
elif nextchar == "[":
value, end = parse_array((string, idx + 1), _scan_once)
return ListToken(value, idx, end - 1, content), end
elif nextchar == "n" and string[idx:idx + 4] == "null":
value, end = None, idx + 4
return ScalarToken(value, idx, end - 1, content), end
elif nextchar == "t" and string[idx:idx + 4] == "true":
value, end = True, idx + 4
return ScalarToken(value, idx, end - 1, content), end
elif nextchar == "f" and string[idx:idx + 5] == "false":
value, end = False, idx + 5
return ScalarToken(value, idx, end - 1, content), end
m = match_number(string, idx)
if m is not None:
integer, frac, exp = m.groups()
if frac or exp:
res = parse_float(integer + (frac or "") + (exp or ""))
else:
res = parse_int(integer)
value, end = res, m.end()
return ScalarToken(value, idx, end - 1, content), end
else: # pragma: no cover
raise StopIteration(idx)
def test_tokenize_object():
token = tokenize_yaml(YAML_OBJECT)
expected = DictToken(
{
ScalarToken("a", 1, 1):
ListToken(
[
ScalarToken(1, 8, 8),
ScalarToken(2, 14, 14),
ScalarToken(3, 20, 20)
],
6,
21,
),
ScalarToken("b", 22, 22):
ScalarToken("test", 25, 30),
},
1,
31,
)
assert token == expected
def test_tokenize_floats():
token = tokenize_yaml(YAML_FLOATS)
expected = ListToken(
[ScalarToken(100.0, 3, 7),
ScalarToken(100.0, 11, 16)], 1, 17)
assert token == expected
def construct_null(loader: "yaml.Loader", node: "yaml.Node") -> ScalarToken:
start = node.start_mark.index
end = node.end_mark.index
value = loader.construct_yaml_null(node)
return ScalarToken(value, start, end - 1, content=str_content)
def _TokenizingJSONObject(
s_and_end: typing.Tuple[str, int],
strict: bool,
scan_once: typing.Callable[[str, int], typing.Tuple[Token, int]],
memo: dict,
content: str,
_w: typing.Callable = WHITESPACE.match,
_ws: str = WHITESPACE_STR,
) -> typing.Tuple[dict, int]:
s, end = s_and_end
pairs = [] # type: typing.List[typing.Tuple[Token, Token]]
pairs_append = pairs.append
memo_get = memo.setdefault
# Use a slice to prevent IndexError from being raised, the following
# check will raise a more specific ValueError if the string is empty
nextchar = s[end:end + 1]
# Normally we expect nextchar == '"'
if nextchar != '"':
if nextchar in _ws:
end = _w(s, end).end()
nextchar = s[end:end + 1]
# Trivial empty object
if nextchar == "}":
return {}, end + 1
elif nextchar != '"':
raise JSONDecodeError(
"Expecting property name enclosed in double quotes", s, end)
end += 1
while True:
start = end - 1
key, end = scanstring(s, end, strict)
key = memo_get(key, key)
key = ScalarToken(memo_get(key, key), start, end - 1, content)
# To skip some function call overhead we optimize the fast paths where
# the JSON key separator is ": " or just ":".
if s[end:end + 1] != ":":
end = _w(s, end).end()
if s[end:end + 1] != ":":
raise JSONDecodeError("Expecting ':' delimiter", s, end)
end += 1
try:
if s[end] in _ws:
end += 1
if s[end] in _ws:
end = _w(s, end + 1).end()
except IndexError:
pass
try:
value, end = scan_once(s, end)
except StopIteration as err:
raise JSONDecodeError("Expecting value", s, err.value) from None
pairs_append((key, value))
try:
nextchar = s[end]
if nextchar in _ws:
end = _w(s, end + 1).end()
nextchar = s[end]
except IndexError:
nextchar = ""
end += 1
if nextchar == "}":
break
elif nextchar != ",":
raise JSONDecodeError("Expecting ',' delimiter", s, end - 1)
end = _w(s, end).end()
nextchar = s[end:end + 1]
end += 1
if nextchar != '"':
raise JSONDecodeError(
"Expecting property name enclosed in double quotes", s,
end - 1)
return dict(pairs), end