_id
stringlengths 2
7
| title
stringlengths 1
88
| partition
stringclasses 3
values | text
stringlengths 75
19.8k
| language
stringclasses 1
value | meta_information
dict |
|---|---|---|---|---|---|
q3200
|
JsonMarshaler.emit_map
|
train
|
def emit_map(self, m, _, cache):
"""Emits array as per default JSON spec."""
self.emit_array_start(None)
self.marshal(MAP_AS_ARR, False, cache)
for k, v in m.items():
self.marshal(k, True, cache)
self.marshal(v, False, cache)
self.emit_array_end()
|
python
|
{
"resource": ""
}
|
q3201
|
Decoder.decode_list
|
train
|
def decode_list(self, node, cache, as_map_key):
"""Special case decodes map-as-array.
Otherwise lists are treated as Python lists.
Arguments follow the same convention as the top-level 'decode'
function.
"""
if node:
if node[0] == MAP_AS_ARR:
# key must be decoded before value for caching to work.
returned_dict = {}
for k, v in pairs(node[1:]):
key = self._decode(k, cache, True)
val = self._decode(v, cache, as_map_key)
returned_dict[key] = val
return transit_types.frozendict(returned_dict)
decoded = self._decode(node[0], cache, as_map_key)
if isinstance(decoded, Tag):
return self.decode_tag(decoded.tag,
self._decode(node[1], cache, as_map_key))
return tuple(self._decode(x, cache, as_map_key) for x in node)
|
python
|
{
"resource": ""
}
|
q3202
|
Decoder.decode_string
|
train
|
def decode_string(self, string, cache, as_map_key):
"""Decode a string - arguments follow the same convention as the
top-level 'decode' function.
"""
if is_cache_key(string):
return self.parse_string(cache.decode(string, as_map_key),
cache, as_map_key)
if is_cacheable(string, as_map_key):
cache.encode(string, as_map_key)
return self.parse_string(string, cache, as_map_key)
|
python
|
{
"resource": ""
}
|
q3203
|
UuidHandler.from_rep
|
train
|
def from_rep(u):
"""Given a string, return a UUID object."""
if isinstance(u, pyversion.string_types):
return uuid.UUID(u)
# hack to remove signs
a = ctypes.c_ulong(u[0])
b = ctypes.c_ulong(u[1])
combined = a.value << 64 | b.value
return uuid.UUID(int=combined)
|
python
|
{
"resource": ""
}
|
q3204
|
PacketIn.in_port
|
train
|
def in_port(self):
"""Retrieve the 'in_port' that generated the PacketIn.
This method will look for the OXM_TLV with type OFPXMT_OFB_IN_PORT on
the `oxm_match_fields` field from `match` field and return its value,
if the OXM exists.
Returns:
The integer number of the 'in_port' that generated the PacketIn if
it exists. Otherwise return None.
"""
in_port = self.match.get_field(OxmOfbMatchField.OFPXMT_OFB_IN_PORT)
return int.from_bytes(in_port, 'big')
|
python
|
{
"resource": ""
}
|
q3205
|
PacketOut._update_actions_len
|
train
|
def _update_actions_len(self):
"""Update the actions_len field based on actions value."""
if isinstance(self.actions, ListOfActions):
self.actions_len = self.actions.get_size()
else:
self.actions_len = ListOfActions(self.actions).get_size()
|
python
|
{
"resource": ""
}
|
q3206
|
PacketOut._validate_in_port
|
train
|
def _validate_in_port(self):
"""Validate in_port attribute.
A valid port is either:
* Greater than 0 and less than or equals to Port.OFPP_MAX
* One of the valid virtual ports: Port.OFPP_LOCAL,
Port.OFPP_CONTROLLER or Port.OFPP_NONE
Raises:
ValidationError: If in_port is an invalid port.
"""
is_valid_range = self.in_port > 0 and self.in_port <= Port.OFPP_MAX
is_valid_virtual_in_ports = self.in_port in _VIRT_IN_PORTS
if (is_valid_range or is_valid_virtual_in_ports) is False:
raise ValidationError(f'{self.in_port} is not a valid input port.')
|
python
|
{
"resource": ""
}
|
q3207
|
new_message_from_message_type
|
train
|
def new_message_from_message_type(message_type):
"""Given an OpenFlow Message Type, return an empty message of that type.
Args:
messageType (:class:`~pyof.v0x01.common.header.Type`):
Python-openflow message.
Returns:
Empty OpenFlow message of the requested message type.
Raises:
KytosUndefinedMessageType: Unkown Message_Type.
"""
message_type = str(message_type)
if message_type not in MESSAGE_TYPES:
raise ValueError('"{}" is not known.'.format(message_type))
message_class = MESSAGE_TYPES.get(message_type)
message_instance = message_class()
return message_instance
|
python
|
{
"resource": ""
}
|
q3208
|
new_message_from_header
|
train
|
def new_message_from_header(header):
"""Given an OF Header, return an empty message of header's message_type.
Args:
header (~pyof.v0x01.common.header.Header): Unpacked OpenFlow Header.
Returns:
Empty OpenFlow message of the same type of message_type attribute from
the given header.
The header attribute of the message will be populated.
Raises:
KytosUndefinedMessageType: Unkown Message_Type.
"""
message_type = header.message_type
if not isinstance(message_type, Type):
try:
if isinstance(message_type, str):
message_type = Type[message_type]
elif isinstance(message_type, int):
message_type = Type(message_type)
except ValueError:
raise ValueError
message = new_message_from_message_type(message_type)
message.header.xid = header.xid
message.header.length = header.length
return message
|
python
|
{
"resource": ""
}
|
q3209
|
unpack_message
|
train
|
def unpack_message(buffer):
"""Unpack the whole buffer, including header pack.
Args:
buffer (bytes): Bytes representation of a openflow message.
Returns:
object: Instance of openflow message.
"""
hdr_size = Header().get_size()
hdr_buff, msg_buff = buffer[:hdr_size], buffer[hdr_size:]
header = Header()
header.unpack(hdr_buff)
message = new_message_from_header(header)
message.unpack(msg_buff)
return message
|
python
|
{
"resource": ""
}
|
q3210
|
MultipartReply._unpack_body
|
train
|
def _unpack_body(self):
"""Unpack `body` replace it by the result."""
obj = self._get_body_instance()
obj.unpack(self.body.value)
self.body = obj
|
python
|
{
"resource": ""
}
|
q3211
|
OxmTLV.unpack
|
train
|
def unpack(self, buff, offset=0):
"""Unpack the buffer into a OxmTLV.
Args:
buff (bytes): The binary data to be unpacked.
offset (int): If we need to shift the beginning of the data.
"""
super().unpack(buff, offset)
# Recover field from field_and_hasmask.
try:
self.oxm_field = self._unpack_oxm_field()
except ValueError as exception:
raise UnpackException(exception)
# The last bit of field_and_mask is oxm_hasmask
self.oxm_hasmask = (self.oxm_field_and_mask & 1) == 1 # as boolean
# Unpack oxm_value that has oxm_length bytes
start = offset + 4 # 4 bytes: class, field_and_mask and length
end = start + self.oxm_length
self.oxm_value = buff[start:end]
|
python
|
{
"resource": ""
}
|
q3212
|
OxmTLV._unpack_oxm_field
|
train
|
def _unpack_oxm_field(self):
"""Unpack oxm_field from oxm_field_and_mask.
Returns:
:class:`OxmOfbMatchField`, int: oxm_field from oxm_field_and_mask.
Raises:
ValueError: If oxm_class is OFPXMC_OPENFLOW_BASIC but
:class:`OxmOfbMatchField` has no such integer value.
"""
field_int = self.oxm_field_and_mask >> 1
# We know that the class below requires a subset of the ofb enum
if self.oxm_class == OxmClass.OFPXMC_OPENFLOW_BASIC:
return OxmOfbMatchField(field_int)
return field_int
|
python
|
{
"resource": ""
}
|
q3213
|
OxmTLV._update_length
|
train
|
def _update_length(self):
"""Update length field.
Update the oxm_length field with the packed payload length.
"""
payload = type(self).oxm_value.pack(self.oxm_value)
self.oxm_length = len(payload)
|
python
|
{
"resource": ""
}
|
q3214
|
OxmTLV.pack
|
train
|
def pack(self, value=None):
"""Join oxm_hasmask bit and 7-bit oxm_field."""
if value is not None:
return value.pack()
# Set oxm_field_and_mask instance attribute
# 1. Move field integer one bit to the left
try:
field_int = self._get_oxm_field_int()
except ValueError as exception:
raise PackException(exception)
field_bits = field_int << 1
# 2. hasmask bit
hasmask_bit = self.oxm_hasmask & 1
# 3. Add hasmask bit to field value
self.oxm_field_and_mask = field_bits + hasmask_bit
self._update_length()
return super().pack(value)
|
python
|
{
"resource": ""
}
|
q3215
|
OxmTLV._get_oxm_field_int
|
train
|
def _get_oxm_field_int(self):
"""Return a valid integer value for oxm_field.
Used while packing.
Returns:
int: valid oxm_field value.
Raises:
ValueError: If :attribute:`oxm_field` is bigger than 7 bits or
should be :class:`OxmOfbMatchField` and the enum has no such
value.
"""
if self.oxm_class == OxmClass.OFPXMC_OPENFLOW_BASIC:
return OxmOfbMatchField(self.oxm_field).value
elif not isinstance(self.oxm_field, int) or self.oxm_field > 127:
raise ValueError('oxm_field above 127: "{self.oxm_field}".')
return self.oxm_field
|
python
|
{
"resource": ""
}
|
q3216
|
Match.pack
|
train
|
def pack(self, value=None):
"""Pack and complete the last byte by padding."""
if isinstance(value, Match):
return value.pack()
elif value is None:
self._update_match_length()
packet = super().pack()
return self._complete_last_byte(packet)
raise PackException(f'Match can\'t unpack "{value}".')
|
python
|
{
"resource": ""
}
|
q3217
|
Match.unpack
|
train
|
def unpack(self, buff, offset=0):
"""Discard padding bytes using the unpacked length attribute."""
begin = offset
for name, value in list(self.get_class_attributes())[:-1]:
size = self._unpack_attribute(name, value, buff, begin)
begin += size
self._unpack_attribute('oxm_match_fields', type(self).oxm_match_fields,
buff[:offset+self.length], begin)
|
python
|
{
"resource": ""
}
|
q3218
|
Match.get_field
|
train
|
def get_field(self, field_type):
"""Return the value for the 'field_type' field in oxm_match_fields.
Args:
field_type (~pyof.v0x04.common.flow_match.OxmOfbMatchField,
~pyof.v0x04.common.flow_match.OxmMatchFields):
The type of the OXM field you want the value.
Returns:
The integer number of the 'field_type' if it exists. Otherwise
return None.
"""
for field in self.oxm_match_fields:
if field.oxm_field == field_type:
return field.oxm_value
return None
|
python
|
{
"resource": ""
}
|
q3219
|
GenericType.value
|
train
|
def value(self):
"""Return this type's value.
Returns:
object: The value of an enum, bitmask, etc.
"""
if self.isenum():
if isinstance(self._value, self.enum_ref):
return self._value.value
return self._value
elif self.is_bitmask():
return self._value.bitmask
else:
return self._value
|
python
|
{
"resource": ""
}
|
q3220
|
GenericType.pack
|
train
|
def pack(self, value=None):
r"""Pack the value as a binary representation.
Considering an example with UBInt8 class, that inherits from
GenericType:
>>> from pyof.foundation.basic_types import UBInt8
>>> objectA = UBInt8(1)
>>> objectB = 5
>>> objectA.pack()
b'\x01'
>>> objectA.pack(objectB)
b'\x05'
Args:
value: If the value is None, then we will pack the value of the
current instance. Otherwise, if value is an instance of the
same type as the current instance, then we call the pack of the
value object. Otherwise, we will use the current instance pack
method on the passed value.
Returns:
bytes: The binary representation.
Raises:
:exc:`~.exceptions.BadValueException`: If the value does not
fit the binary format.
"""
if isinstance(value, type(self)):
return value.pack()
if value is None:
value = self.value
elif 'value' in dir(value):
# if it is enum or bitmask gets only the 'int' value
value = value.value
try:
return struct.pack(self._fmt, value)
except struct.error:
expected_type = type(self).__name__
actual_type = type(value).__name__
msg_args = expected_type, value, actual_type
msg = 'Expected {}, found value "{}" of type {}'.format(*msg_args)
raise PackException(msg)
|
python
|
{
"resource": ""
}
|
q3221
|
MetaStruct._header_message_type_update
|
train
|
def _header_message_type_update(obj, attr):
"""Update the message type on the header.
Set the message_type of the header according to the message_type of
the parent class.
"""
old_enum = obj.message_type
new_header = attr[1]
new_enum = new_header.__class__.message_type.enum_ref
#: This 'if' will be removed on the future with an
#: improved version of __init_subclass__ method of the
#: GenericMessage class
if old_enum:
msg_type_name = old_enum.name
new_type = new_enum[msg_type_name]
new_header.message_type = new_type
return (attr[0], new_header)
|
python
|
{
"resource": ""
}
|
q3222
|
MetaStruct.get_pyof_version
|
train
|
def get_pyof_version(module_fullname):
"""Get the module pyof version based on the module fullname.
Args:
module_fullname (str): The fullname of the module
(e.g.: pyof.v0x01.common.header)
Returns:
str: openflow version.
The openflow version, on the format 'v0x0?' if any. Or None
if there isn't a version on the fullname.
"""
ver_module_re = re.compile(r'(pyof\.)(v0x\d+)(\..*)')
matched = ver_module_re.match(module_fullname)
if matched:
version = matched.group(2)
return version
return None
|
python
|
{
"resource": ""
}
|
q3223
|
MetaStruct.replace_pyof_version
|
train
|
def replace_pyof_version(module_fullname, version):
"""Replace the OF Version of a module fullname.
Get's a module name (eg. 'pyof.v0x01.common.header') and returns it on
a new 'version' (eg. 'pyof.v0x02.common.header').
Args:
module_fullname (str): The fullname of the module
(e.g.: pyof.v0x01.common.header)
version (str): The version to be 'inserted' on the module fullname.
Returns:
str: module fullname
The new module fullname, with the replaced version,
on the format "pyof.v0x01.common.header". If the requested
version is the same as the one of the module_fullname or if
the module_fullname is not a 'OF version' specific module,
returns None.
"""
module_version = MetaStruct.get_pyof_version(module_fullname)
if not module_version or module_version == version:
return None
return module_fullname.replace(module_version, version)
|
python
|
{
"resource": ""
}
|
q3224
|
MetaStruct.get_pyof_obj_new_version
|
train
|
def get_pyof_obj_new_version(name, obj, new_version):
r"""Return a class attribute on a different pyof version.
This method receives the name of a class attribute, the class attribute
itself (object) and an openflow version.
The attribute will be evaluated and from it we will recover its class
and the module where the class was defined.
If the module is a "python-openflow version specific module" (starts
with "pyof.v0"), then we will get it's version and if it is different
from the 'new_version', then we will get the module on the
'new_version', look for the 'obj' class on the new module and return
an instance of the new version of the 'obj'.
Example:
>>> from pyof.foundation.base import MetaStruct as ms
>>> from pyof.v0x01.common.header import Header
>>> name = 'header'
>>> obj = Header()
>>> new_version = 'v0x04'
>>> header, obj2 = ms.get_pyof_obj_new_version(name, obj, new_version)
>>> header
'header'
>>> obj.version
UBInt8(1)
>>> obj2.version
UBInt8(4)
Args:
name (str): the name of the class attribute being handled.
obj (object): the class attribute itself
new_version (string): the pyof version in which you want the object
'obj'.
Return:
(str, obj): Tuple with class name and object instance.
A tuple in which the first item is the name of the class
attribute (the same that was passed), and the second item is a
instance of the passed class attribute. If the class attribute
is not a pyof versioned attribute, then the same passed object
is returned without any changes. Also, if the obj is a pyof
versioned attribute, but it is already on the right version
(same as new_version), then the passed obj is return.
"""
if new_version is None:
return (name, obj)
cls = obj.__class__
cls_name = cls.__name__
cls_mod = cls.__module__
#: If the module name does not starts with pyof.v0 then it is not a
#: 'pyof versioned' module (OpenFlow specification defined), so we do
#: not have anything to do with it.
new_mod = MetaStruct.replace_pyof_version(cls_mod, new_version)
if new_mod is not None:
# Loads the module
new_mod = importlib.import_module(new_mod)
#: Get the class from the loaded module
new_cls = getattr(new_mod, cls_name)
#: return the tuple with the attribute name and the instance
return (name, new_cls())
return (name, obj)
|
python
|
{
"resource": ""
}
|
q3225
|
GenericStruct._validate_attributes_type
|
train
|
def _validate_attributes_type(self):
"""Validate the type of each attribute."""
for _attr, _class in self._get_attributes():
if isinstance(_attr, _class):
return True
elif issubclass(_class, GenericType):
if GenericStruct._attr_fits_into_class(_attr, _class):
return True
elif not isinstance(_attr, _class):
return False
return True
|
python
|
{
"resource": ""
}
|
q3226
|
GenericStruct.get_class_attributes
|
train
|
def get_class_attributes(cls):
"""Return a generator for class attributes' names and value.
This method strict relies on the PEP 520 (Preserving Class Attribute
Definition Order), implemented on Python 3.6. So, if this behaviour
changes this whole lib can loose its functionality (since the
attributes order are a strong requirement.) For the same reason, this
lib will not work on python versions earlier than 3.6.
.. code-block:: python3
for name, value in self.get_class_attributes():
print("attribute name: {}".format(name))
print("attribute type: {}".format(value))
Returns:
generator: tuples with attribute name and value.
"""
#: see this method docstring for a important notice about the use of
#: cls.__dict__
for name, value in cls.__dict__.items():
# gets only our (kytos) attributes. this ignores methods, dunder
# methods and attributes, and common python type attributes.
if GenericStruct._is_pyof_attribute(value):
yield (name, value)
|
python
|
{
"resource": ""
}
|
q3227
|
GenericStruct._get_instance_attributes
|
train
|
def _get_instance_attributes(self):
"""Return a generator for instance attributes' name and value.
.. code-block:: python3
for _name, _value in self._get_instance_attributes():
print("attribute name: {}".format(_name))
print("attribute value: {}".format(_value))
Returns:
generator: tuples with attribute name and value.
"""
for name, value in self.__dict__.items():
if name in map((lambda x: x[0]), self.get_class_attributes()):
yield (name, value)
|
python
|
{
"resource": ""
}
|
q3228
|
GenericStruct._get_attributes
|
train
|
def _get_attributes(self):
"""Return a generator for instance and class attribute.
.. code-block:: python3
for instance_attribute, class_attribute in self._get_attributes():
print("Instance Attribute: {}".format(instance_attribute))
print("Class Attribute: {}".format(class_attribute))
Returns:
generator: Tuples with instance attribute and class attribute
"""
return map((lambda i, c: (i[1], c[1])),
self._get_instance_attributes(),
self.get_class_attributes())
|
python
|
{
"resource": ""
}
|
q3229
|
GenericStruct._get_named_attributes
|
train
|
def _get_named_attributes(self):
"""Return generator for attribute's name, instance and class values.
Add attribute name to meth:`_get_attributes` for a better debugging
message, so user can find the error easier.
Returns:
generator: Tuple with attribute's name, instance and class values.
"""
for cls, instance in zip(self.get_class_attributes(),
self._get_instance_attributes()):
attr_name, cls_value = cls
instance_value = instance[1]
yield attr_name, instance_value, cls_value
|
python
|
{
"resource": ""
}
|
q3230
|
GenericStruct.get_size
|
train
|
def get_size(self, value=None):
"""Calculate the total struct size in bytes.
For each struct attribute, sum the result of each one's ``get_size()``
method.
Args:
value: In structs, the user can assign other value instead of a
class' instance.
Returns:
int: Total number of bytes used by the struct.
Raises:
Exception: If the struct is not valid.
"""
if value is None:
return sum(cls_val.get_size(obj_val) for obj_val, cls_val in
self._get_attributes())
elif isinstance(value, type(self)):
return value.get_size()
else:
msg = "{} is not an instance of {}".format(value,
type(self).__name__)
raise PackException(msg)
|
python
|
{
"resource": ""
}
|
q3231
|
GenericMessage.pack
|
train
|
def pack(self, value=None):
"""Pack the message into a binary data.
One of the basic operations on a Message is the pack operation. During
the packing process, we convert all message attributes to binary
format.
Since that this is usually used before sending the message to a switch,
here we also call :meth:`update_header_length`.
.. seealso:: This method call its parent's :meth:`GenericStruct.pack`
after :meth:`update_header_length`.
Returns:
bytes: A binary data thats represents the Message.
Raises:
Exception: If there are validation errors.
"""
if value is None:
self.update_header_length()
return super().pack()
elif isinstance(value, type(self)):
return value.pack()
else:
msg = "{} is not an instance of {}".format(value,
type(self).__name__)
raise PackException(msg)
|
python
|
{
"resource": ""
}
|
q3232
|
GenericBitMask.names
|
train
|
def names(self):
"""List of selected enum names.
Returns:
list: Enum names.
"""
result = []
for key, value in self.iteritems():
if value & self.bitmask:
result.append(key)
return result
|
python
|
{
"resource": ""
}
|
q3233
|
Match.fill_wildcards
|
train
|
def fill_wildcards(self, field=None, value=0):
"""Update wildcards attribute.
This method update a wildcards considering the attributes of the
current instance.
Args:
field (str): Name of the updated field.
value (GenericType): New value used in the field.
"""
if field in [None, 'wildcards'] or isinstance(value, Pad):
return
default_value = getattr(Match, field)
if isinstance(default_value, IPAddress):
if field == 'nw_dst':
shift = FlowWildCards.OFPFW_NW_DST_SHIFT
base_mask = FlowWildCards.OFPFW_NW_DST_MASK
else:
shift = FlowWildCards.OFPFW_NW_SRC_SHIFT
base_mask = FlowWildCards.OFPFW_NW_SRC_MASK
# First we clear the nw_dst/nw_src mask related bits on the current
# wildcard by setting 0 on all of them while we keep all other bits
# as they are.
self.wildcards &= FlowWildCards.OFPFW_ALL ^ base_mask
# nw_dst and nw_src wildcard fields have 6 bits each.
# "base_mask" is the 'all ones' for those 6 bits.
# Once we know the netmask, we can calculate the these 6 bits
# wildcard value and reverse them in order to insert them at the
# correct position in self.wildcards
wildcard = (value.max_prefix - value.netmask) << shift
self.wildcards |= wildcard
else:
wildcard_field = "OFPFW_{}".format(field.upper())
wildcard = getattr(FlowWildCards, wildcard_field)
if value == default_value and not (self.wildcards & wildcard) or \
value != default_value and (self.wildcards & wildcard):
self.wildcards ^= wildcard
|
python
|
{
"resource": ""
}
|
q3234
|
ActionSetField.pack
|
train
|
def pack(self, value=None):
"""Pack this structure updating the length and padding it."""
self._update_length()
packet = super().pack()
return self._complete_last_byte(packet)
|
python
|
{
"resource": ""
}
|
q3235
|
ActionSetField._update_length
|
train
|
def _update_length(self):
"""Update the length field of the struct."""
action_length = 4 + len(self.field.pack())
overflow = action_length % 8
self.length = action_length
if overflow:
self.length = action_length + 8 - overflow
|
python
|
{
"resource": ""
}
|
q3236
|
VLAN._validate
|
train
|
def _validate(self):
"""Assure this is a valid VLAN header instance."""
if self.tpid.value not in (EtherType.VLAN, EtherType.VLAN_QINQ):
raise UnpackException
return
|
python
|
{
"resource": ""
}
|
q3237
|
Ethernet._get_vlan_length
|
train
|
def _get_vlan_length(buff):
"""Return the total length of VLAN tags in a given Ethernet buffer."""
length = 0
begin = 12
while(buff[begin:begin+2] in (EtherType.VLAN.to_bytes(2, 'big'),
EtherType.VLAN_QINQ.to_bytes(2, 'big'))):
length += 4
begin += 4
return length
|
python
|
{
"resource": ""
}
|
q3238
|
GenericTLV.pack
|
train
|
def pack(self, value=None):
"""Pack the TLV in a binary representation.
Returns:
bytes: Binary representation of the struct object.
Raises:
:exc:`~.exceptions.ValidationError`: If validation fails.
"""
if value is None:
output = self.header.pack()
output += self.value.pack()
return output
elif isinstance(value, type(self)):
return value.pack()
else:
msg = "{} is not an instance of {}".format(value,
type(self).__name__)
raise PackException(msg)
|
python
|
{
"resource": ""
}
|
q3239
|
GenericTLV.get_size
|
train
|
def get_size(self, value=None):
"""Return struct size.
Returns:
int: Returns the struct size based on inner attributes.
"""
if isinstance(value, type(self)):
return value.get_size()
return 2 + self.length
|
python
|
{
"resource": ""
}
|
q3240
|
IPv4._update_checksum
|
train
|
def _update_checksum(self):
"""Update the packet checksum to enable integrity check."""
source_list = [int(octet) for octet in self.source.split(".")]
destination_list = [int(octet) for octet in
self.destination.split(".")]
source_upper = (source_list[0] << 8) + source_list[1]
source_lower = (source_list[2] << 8) + source_list[3]
destination_upper = (destination_list[0] << 8) + destination_list[1]
destination_lower = (destination_list[2] << 8) + destination_list[3]
block_sum = ((self._version_ihl << 8 | self._dscp_ecn) + self.length +
self.identification + self._flags_offset +
(self.ttl << 8 | self.protocol) + source_upper +
source_lower + destination_upper + destination_lower)
while block_sum > 65535:
carry = block_sum >> 16
block_sum = (block_sum & 65535) + carry
self.checksum = ~block_sum & 65535
|
python
|
{
"resource": ""
}
|
q3241
|
TLVWithSubType.value
|
train
|
def value(self):
"""Return sub type and sub value as binary data.
Returns:
:class:`~pyof.foundation.basic_types.BinaryData`:
BinaryData calculated.
"""
binary = UBInt8(self.sub_type).pack() + self.sub_value.pack()
return BinaryData(binary)
|
python
|
{
"resource": ""
}
|
q3242
|
validate_packet
|
train
|
def validate_packet(packet):
"""Check if packet is valid OF packet.
Raises:
UnpackException: If the packet is invalid.
"""
if not isinstance(packet, bytes):
raise UnpackException('invalid packet')
packet_length = len(packet)
if packet_length < 8 or packet_length > 2**16:
raise UnpackException('invalid packet')
if packet_length != int.from_bytes(packet[2:4], byteorder='big'):
raise UnpackException('invalid packet')
version = packet[0]
if version == 0 or version >= 128:
raise UnpackException('invalid packet')
|
python
|
{
"resource": ""
}
|
q3243
|
unpack
|
train
|
def unpack(packet):
"""Unpack the OpenFlow Packet and returns a message.
Args:
packet: buffer with the openflow packet.
Returns:
GenericMessage: Message unpacked based on openflow packet.
Raises:
UnpackException: if the packet can't be unpacked.
"""
validate_packet(packet)
version = packet[0]
try:
pyof_lib = PYOF_VERSION_LIBS[version]
except KeyError:
raise UnpackException('Version not supported')
try:
message = pyof_lib.common.utils.unpack_message(packet)
return message
except (UnpackException, ValueError) as exception:
raise UnpackException(exception)
|
python
|
{
"resource": ""
}
|
q3244
|
ErrorMsg.unpack
|
train
|
def unpack(self, buff, offset=0):
"""Unpack binary data into python object."""
super().unpack(buff, offset)
code_class = ErrorType(self.error_type).get_class()
self.code = code_class(self.code)
|
python
|
{
"resource": ""
}
|
q3245
|
Bookmarks._createAction
|
train
|
def _createAction(self, widget, iconFileName, text, shortcut, slot):
"""Create QAction with given parameters and add to the widget
"""
icon = qutepart.getIcon(iconFileName)
action = QAction(icon, text, widget)
action.setShortcut(QKeySequence(shortcut))
action.setShortcutContext(Qt.WidgetShortcut)
action.triggered.connect(slot)
widget.addAction(action)
return action
|
python
|
{
"resource": ""
}
|
q3246
|
Bookmarks.clear
|
train
|
def clear(self, startBlock, endBlock):
"""Clear bookmarks on block range including start and end
"""
for block in qutepart.iterateBlocksFrom(startBlock):
self._setBlockMarked(block, False)
if block == endBlock:
break
|
python
|
{
"resource": ""
}
|
q3247
|
BracketHighlighter._makeMatchSelection
|
train
|
def _makeMatchSelection(self, block, columnIndex, matched):
"""Make matched or unmatched QTextEdit.ExtraSelection
"""
selection = QTextEdit.ExtraSelection()
if matched:
bgColor = Qt.green
else:
bgColor = Qt.red
selection.format.setBackground(bgColor)
selection.cursor = QTextCursor(block)
selection.cursor.setPosition(block.position() + columnIndex)
selection.cursor.movePosition(QTextCursor.Right, QTextCursor.KeepAnchor)
return selection
|
python
|
{
"resource": ""
}
|
q3248
|
BracketHighlighter._highlightBracket
|
train
|
def _highlightBracket(self, bracket, qpart, block, columnIndex):
"""Highlight bracket and matching bracket
Return tuple of QTextEdit.ExtraSelection's
"""
try:
matchedBlock, matchedColumnIndex = self._findMatchingBracket(bracket, qpart, block, columnIndex)
except _TimeoutException: # not found, time is over
return[] # highlight nothing
if matchedBlock is not None:
self.currentMatchedBrackets = ((block, columnIndex), (matchedBlock, matchedColumnIndex))
return [self._makeMatchSelection(block, columnIndex, True),
self._makeMatchSelection(matchedBlock, matchedColumnIndex, True)]
else:
self.currentMatchedBrackets = None
return [self._makeMatchSelection(block, columnIndex, False)]
|
python
|
{
"resource": ""
}
|
q3249
|
BracketHighlighter.extraSelections
|
train
|
def extraSelections(self, qpart, block, columnIndex):
"""List of QTextEdit.ExtraSelection's, which highlighte brackets
"""
blockText = block.text()
if columnIndex < len(blockText) and \
blockText[columnIndex] in self._ALL_BRACKETS and \
qpart.isCode(block, columnIndex):
return self._highlightBracket(blockText[columnIndex], qpart, block, columnIndex)
elif columnIndex > 0 and \
blockText[columnIndex - 1] in self._ALL_BRACKETS and \
qpart.isCode(block, columnIndex - 1):
return self._highlightBracket(blockText[columnIndex - 1], qpart, block, columnIndex - 1)
else:
self.currentMatchedBrackets = None
return []
|
python
|
{
"resource": ""
}
|
q3250
|
_cmpFormatRanges
|
train
|
def _cmpFormatRanges(a, b):
"""PyQt does not define proper comparison for QTextLayout.FormatRange
Define it to check correctly, if formats has changed.
It is important for the performance
"""
if a.format == b.format and \
a.start == b.start and \
a.length == b.length:
return 0
else:
return cmp(id(a), id(b))
|
python
|
{
"resource": ""
}
|
q3251
|
SyntaxHighlighter.isCode
|
train
|
def isCode(self, block, column):
"""Check if character at column is a a code
"""
dataObject = block.userData()
data = dataObject.data if dataObject is not None else None
return self._syntax.isCode(data, column)
|
python
|
{
"resource": ""
}
|
q3252
|
SyntaxHighlighter.isComment
|
train
|
def isComment(self, block, column):
"""Check if character at column is a comment
"""
dataObject = block.userData()
data = dataObject.data if dataObject is not None else None
return self._syntax.isComment(data, column)
|
python
|
{
"resource": ""
}
|
q3253
|
SyntaxHighlighter.isBlockComment
|
train
|
def isBlockComment(self, block, column):
"""Check if character at column is a block comment
"""
dataObject = block.userData()
data = dataObject.data if dataObject is not None else None
return self._syntax.isBlockComment(data, column)
|
python
|
{
"resource": ""
}
|
q3254
|
SyntaxHighlighter.isHereDoc
|
train
|
def isHereDoc(self, block, column):
"""Check if character at column is a here document
"""
dataObject = block.userData()
data = dataObject.data if dataObject is not None else None
return self._syntax.isHereDoc(data, column)
|
python
|
{
"resource": ""
}
|
q3255
|
Lines._atomicModification
|
train
|
def _atomicModification(func):
"""Decorator
Make document modification atomic
"""
def wrapper(*args, **kwargs):
self = args[0]
with self._qpart:
func(*args, **kwargs)
return wrapper
|
python
|
{
"resource": ""
}
|
q3256
|
Lines._checkAndConvertIndex
|
train
|
def _checkAndConvertIndex(self, index):
"""Check integer index, convert from less than zero notation
"""
if index < 0:
index = len(self) + index
if index < 0 or index >= self._doc.blockCount():
raise IndexError('Invalid block index', index)
return index
|
python
|
{
"resource": ""
}
|
q3257
|
Lines.append
|
train
|
def append(self, text):
"""Append line to the end
"""
cursor = QTextCursor(self._doc)
cursor.movePosition(QTextCursor.End)
cursor.insertBlock()
cursor.insertText(text)
|
python
|
{
"resource": ""
}
|
q3258
|
Lines.insert
|
train
|
def insert(self, index, text):
"""Insert line to the document
"""
if index < 0 or index > self._doc.blockCount():
raise IndexError('Invalid block index', index)
if index == 0: # first
cursor = QTextCursor(self._doc.firstBlock())
cursor.insertText(text)
cursor.insertBlock()
elif index != self._doc.blockCount(): # not the last
cursor = QTextCursor(self._doc.findBlockByNumber(index).previous())
cursor.movePosition(QTextCursor.EndOfBlock)
cursor.insertBlock()
cursor.insertText(text)
else: # last append to the end
self.append(text)
|
python
|
{
"resource": ""
}
|
q3259
|
IndentAlgRuby._isLastCodeColumn
|
train
|
def _isLastCodeColumn(self, block, column):
"""Return true if the given column is at least equal to the column that
contains the last non-whitespace character at the given line, or if
the rest of the line is a comment.
"""
return column >= self._lastColumn(block) or \
self._isComment(block, self._nextNonSpaceColumn(block, column + 1))
|
python
|
{
"resource": ""
}
|
q3260
|
IndentAlgRuby.findStmtStart
|
train
|
def findStmtStart(self, block):
"""Return the first line that is not preceded by a "continuing" line.
Return currBlock if currBlock <= 0
"""
prevBlock = self._prevNonCommentBlock(block)
while prevBlock.isValid() and \
(((prevBlock == block.previous()) and self._isBlockContinuing(prevBlock)) or \
self.isStmtContinuing(prevBlock)):
block = prevBlock
prevBlock = self._prevNonCommentBlock(block)
return block
|
python
|
{
"resource": ""
}
|
q3261
|
IndentAlgRuby._isValidTrigger
|
train
|
def _isValidTrigger(block, ch):
"""check if the trigger characters are in the right context,
otherwise running the indenter might be annoying to the user
"""
if ch == "" or ch == "\n":
return True # Explicit align or new line
match = rxUnindent.match(block.text())
return match is not None and \
match.group(3) == ""
|
python
|
{
"resource": ""
}
|
q3262
|
IndentAlgRuby.findPrevStmt
|
train
|
def findPrevStmt(self, block):
"""Returns a tuple that contains the first and last line of the
previous statement before line.
"""
stmtEnd = self._prevNonCommentBlock(block)
stmtStart = self.findStmtStart(stmtEnd)
return Statement(self._qpart, stmtStart, stmtEnd)
|
python
|
{
"resource": ""
}
|
q3263
|
HTMLDelegate.paint
|
train
|
def paint(self, painter, option, index):
"""QStyledItemDelegate.paint implementation
"""
option.state &= ~QStyle.State_HasFocus # never draw focus rect
options = QStyleOptionViewItem(option)
self.initStyleOption(options,index)
style = QApplication.style() if options.widget is None else options.widget.style()
doc = QTextDocument()
doc.setDocumentMargin(1)
doc.setHtml(options.text)
if options.widget is not None:
doc.setDefaultFont(options.widget.font())
# bad long (multiline) strings processing doc.setTextWidth(options.rect.width())
options.text = ""
style.drawControl(QStyle.CE_ItemViewItem, options, painter);
ctx = QAbstractTextDocumentLayout.PaintContext()
# Highlighting text if item is selected
if option.state & QStyle.State_Selected:
ctx.palette.setColor(QPalette.Text, option.palette.color(QPalette.Active, QPalette.HighlightedText))
textRect = style.subElementRect(QStyle.SE_ItemViewItemText, options)
painter.save()
painter.translate(textRect.topLeft())
"""Original example contained line
painter.setClipRect(textRect.translated(-textRect.topLeft()))
but text is drawn clipped with it on kubuntu 12.04
"""
doc.documentLayout().draw(painter, ctx)
painter.restore()
|
python
|
{
"resource": ""
}
|
q3264
|
RectangularSelection.isDeleteKeyEvent
|
train
|
def isDeleteKeyEvent(self, keyEvent):
"""Check if key event should be handled as Delete command"""
return self._start is not None and \
(keyEvent.matches(QKeySequence.Delete) or \
(keyEvent.key() == Qt.Key_Backspace and keyEvent.modifiers() == Qt.NoModifier))
|
python
|
{
"resource": ""
}
|
q3265
|
RectangularSelection.delete
|
train
|
def delete(self):
"""Del or Backspace pressed. Delete selection"""
with self._qpart:
for cursor in self.cursors():
if cursor.hasSelection():
cursor.deleteChar()
|
python
|
{
"resource": ""
}
|
q3266
|
RectangularSelection.isExpandKeyEvent
|
train
|
def isExpandKeyEvent(self, keyEvent):
"""Check if key event should expand rectangular selection"""
return keyEvent.modifiers() & Qt.ShiftModifier and \
keyEvent.modifiers() & Qt.AltModifier and \
keyEvent.key() in (Qt.Key_Left, Qt.Key_Right, Qt.Key_Down, Qt.Key_Up,
Qt.Key_PageUp, Qt.Key_PageDown, Qt.Key_Home, Qt.Key_End)
|
python
|
{
"resource": ""
}
|
q3267
|
RectangularSelection.onExpandKeyEvent
|
train
|
def onExpandKeyEvent(self, keyEvent):
"""One of expand selection key events"""
if self._start is None:
currentBlockText = self._qpart.textCursor().block().text()
line = self._qpart.cursorPosition[0]
visibleColumn = self._realToVisibleColumn(currentBlockText, self._qpart.cursorPosition[1])
self._start = (line, visibleColumn)
modifiersWithoutAltShift = keyEvent.modifiers() & ( ~ (Qt.AltModifier | Qt.ShiftModifier))
newEvent = QKeyEvent(keyEvent.type(),
keyEvent.key(),
modifiersWithoutAltShift,
keyEvent.text(),
keyEvent.isAutoRepeat(),
keyEvent.count())
self._qpart.cursorPositionChanged.disconnect(self._reset)
self._qpart.selectionChanged.disconnect(self._reset)
super(self._qpart.__class__, self._qpart).keyPressEvent(newEvent)
self._qpart.cursorPositionChanged.connect(self._reset)
self._qpart.selectionChanged.connect(self._reset)
|
python
|
{
"resource": ""
}
|
q3268
|
RectangularSelection._realToVisibleColumn
|
train
|
def _realToVisibleColumn(self, text, realColumn):
"""If \t is used, real position of symbol in block and visible position differs
This function converts real to visible
"""
generator = self._visibleCharPositionGenerator(text)
for i in range(realColumn):
val = next(generator)
val = next(generator)
return val
|
python
|
{
"resource": ""
}
|
q3269
|
RectangularSelection._visibleToRealColumn
|
train
|
def _visibleToRealColumn(self, text, visiblePos):
"""If \t is used, real position of symbol in block and visible position differs
This function converts visible to real.
Bigger value is returned, if visiblePos is in the middle of \t, None if text is too short
"""
if visiblePos == 0:
return 0
elif not '\t' in text:
return visiblePos
else:
currentIndex = 1
for currentVisiblePos in self._visibleCharPositionGenerator(text):
if currentVisiblePos >= visiblePos:
return currentIndex - 1
currentIndex += 1
return None
|
python
|
{
"resource": ""
}
|
q3270
|
RectangularSelection.cursors
|
train
|
def cursors(self):
"""Cursors for rectangular selection.
1 cursor for every line
"""
cursors = []
if self._start is not None:
startLine, startVisibleCol = self._start
currentLine, currentCol = self._qpart.cursorPosition
if abs(startLine - currentLine) > self._MAX_SIZE or \
abs(startVisibleCol - currentCol) > self._MAX_SIZE:
# Too big rectangular selection freezes the GUI
self._qpart.userWarning.emit('Rectangular selection area is too big')
self._start = None
return []
currentBlockText = self._qpart.textCursor().block().text()
currentVisibleCol = self._realToVisibleColumn(currentBlockText, currentCol)
for lineNumber in range(min(startLine, currentLine),
max(startLine, currentLine) + 1):
block = self._qpart.document().findBlockByNumber(lineNumber)
cursor = QTextCursor(block)
realStartCol = self._visibleToRealColumn(block.text(), startVisibleCol)
realCurrentCol = self._visibleToRealColumn(block.text(), currentVisibleCol)
if realStartCol is None:
realStartCol = block.length() # out of range value
if realCurrentCol is None:
realCurrentCol = block.length() # out of range value
cursor.setPosition(cursor.block().position() + min(realStartCol, block.length() - 1))
cursor.setPosition(cursor.block().position() + min(realCurrentCol, block.length() - 1),
QTextCursor.KeepAnchor)
cursors.append(cursor)
return cursors
|
python
|
{
"resource": ""
}
|
q3271
|
RectangularSelection.selections
|
train
|
def selections(self):
"""Build list of extra selections for rectangular selection"""
selections = []
cursors = self.cursors()
if cursors:
background = self._qpart.palette().color(QPalette.Highlight)
foreground = self._qpart.palette().color(QPalette.HighlightedText)
for cursor in cursors:
selection = QTextEdit.ExtraSelection()
selection.format.setBackground(background)
selection.format.setForeground(foreground)
selection.cursor = cursor
selections.append(selection)
return selections
|
python
|
{
"resource": ""
}
|
q3272
|
RectangularSelection.copy
|
train
|
def copy(self):
"""Copy to the clipboard"""
data = QMimeData()
text = '\n'.join([cursor.selectedText() \
for cursor in self.cursors()])
data.setText(text)
data.setData(self.MIME_TYPE, text.encode('utf8'))
QApplication.clipboard().setMimeData(data)
|
python
|
{
"resource": ""
}
|
q3273
|
RectangularSelection.cut
|
train
|
def cut(self):
"""Cut action. Copy and delete
"""
cursorPos = self._qpart.cursorPosition
topLeft = (min(self._start[0], cursorPos[0]),
min(self._start[1], cursorPos[1]))
self.copy()
self.delete()
"""Move cursor to top-left corner of the selection,
so that if text gets pasted again, original text will be restored"""
self._qpart.cursorPosition = topLeft
|
python
|
{
"resource": ""
}
|
q3274
|
RectangularSelection._indentUpTo
|
train
|
def _indentUpTo(self, text, width):
"""Add space to text, so text width will be at least width.
Return text, which must be added
"""
visibleTextWidth = self._realToVisibleColumn(text, len(text))
diff = width - visibleTextWidth
if diff <= 0:
return ''
elif self._qpart.indentUseTabs and \
all([char == '\t' for char in text]): # if using tabs and only tabs in text
return '\t' * (diff // self._qpart.indentWidth) + \
' ' * (diff % self._qpart.indentWidth)
else:
return ' ' * int(diff)
|
python
|
{
"resource": ""
}
|
q3275
|
RectangularSelection.paste
|
train
|
def paste(self, mimeData):
"""Paste recrangular selection.
Add space at the beginning of line, if necessary
"""
if self.isActive():
self.delete()
elif self._qpart.textCursor().hasSelection():
self._qpart.textCursor().deleteChar()
text = bytes(mimeData.data(self.MIME_TYPE)).decode('utf8')
lines = text.splitlines()
cursorLine, cursorCol = self._qpart.cursorPosition
if cursorLine + len(lines) > len(self._qpart.lines):
for i in range(cursorLine + len(lines) - len(self._qpart.lines)):
self._qpart.lines.append('')
with self._qpart:
for index, line in enumerate(lines):
currentLine = self._qpart.lines[cursorLine + index]
newLine = currentLine[:cursorCol] + \
self._indentUpTo(currentLine, cursorCol) + \
line + \
currentLine[cursorCol:]
self._qpart.lines[cursorLine + index] = newLine
self._qpart.cursorPosition = cursorLine, cursorCol
|
python
|
{
"resource": ""
}
|
q3276
|
MarginBase.__allocateBits
|
train
|
def __allocateBits(self):
"""Allocates the bit range depending on the required bit count
"""
if self._bit_count < 0:
raise Exception( "A margin cannot request negative number of bits" )
if self._bit_count == 0:
return
# Build a list of occupied ranges
margins = self._qpart.getMargins()
occupiedRanges = []
for margin in margins:
bitRange = margin.getBitRange()
if bitRange is not None:
# pick the right position
added = False
for index in range( len( occupiedRanges ) ):
r = occupiedRanges[ index ]
if bitRange[ 1 ] < r[ 0 ]:
occupiedRanges.insert(index, bitRange)
added = True
break
if not added:
occupiedRanges.append(bitRange)
vacant = 0
for r in occupiedRanges:
if r[ 0 ] - vacant >= self._bit_count:
self._bitRange = (vacant, vacant + self._bit_count - 1)
return
vacant = r[ 1 ] + 1
# Not allocated, i.e. grab the tail bits
self._bitRange = (vacant, vacant + self._bit_count - 1)
|
python
|
{
"resource": ""
}
|
q3277
|
MarginBase.__updateRequest
|
train
|
def __updateRequest(self, rect, dy):
"""Repaint line number area if necessary
"""
if dy:
self.scroll(0, dy)
elif self._countCache[0] != self._qpart.blockCount() or \
self._countCache[1] != self._qpart.textCursor().block().lineCount():
# if block height not added to rect, last line number sometimes is not drawn
blockHeight = self._qpart.blockBoundingRect(self._qpart.firstVisibleBlock()).height()
self.update(0, rect.y(), self.width(), rect.height() + blockHeight)
self._countCache = (self._qpart.blockCount(), self._qpart.textCursor().block().lineCount())
if rect.contains(self._qpart.viewport().rect()):
self._qpart.updateViewportMargins()
|
python
|
{
"resource": ""
}
|
q3278
|
MarginBase.setBlockValue
|
train
|
def setBlockValue(self, block, value):
"""Sets the required value to the block without damaging the other bits
"""
if self._bit_count == 0:
raise Exception( "The margin '" + self._name +
"' did not allocate any bits for the values")
if value < 0:
raise Exception( "The margin '" + self._name +
"' must be a positive integer" )
if value >= 2 ** self._bit_count:
raise Exception( "The margin '" + self._name +
"' value exceeds the allocated bit range" )
newMarginValue = value << self._bitRange[ 0 ]
currentUserState = block.userState()
if currentUserState in [ 0, -1 ]:
block.setUserState(newMarginValue)
else:
marginMask = 2 ** self._bit_count - 1
otherMarginsValue = currentUserState & ~marginMask
block.setUserState(newMarginValue | otherMarginsValue)
|
python
|
{
"resource": ""
}
|
q3279
|
MarginBase.getBlockValue
|
train
|
def getBlockValue(self, block):
"""Provides the previously set block value respecting the bits range.
0 value and not marked block are treated the same way and 0 is
provided.
"""
if self._bit_count == 0:
raise Exception( "The margin '" + self._name +
"' did not allocate any bits for the values")
val = block.userState()
if val in [ 0, -1 ]:
return 0
# Shift the value to the right
val >>= self._bitRange[ 0 ]
# Apply the mask to the value
mask = 2 ** self._bit_count - 1
val &= mask
return val
|
python
|
{
"resource": ""
}
|
q3280
|
MarginBase.clear
|
train
|
def clear(self):
"""Convenience method to reset all the block values to 0
"""
if self._bit_count == 0:
return
block = self._qpart.document().begin()
while block.isValid():
if self.getBlockValue(block):
self.setBlockValue(block, 0)
block = block.next()
|
python
|
{
"resource": ""
}
|
q3281
|
SyntaxManager._getSyntaxByXmlFileName
|
train
|
def _getSyntaxByXmlFileName(self, xmlFileName):
"""Get syntax by its xml file name
"""
import qutepart.syntax.loader # delayed import for avoid cross-imports problem
with self._loadedSyntaxesLock:
if not xmlFileName in self._loadedSyntaxes:
xmlFilePath = os.path.join(os.path.dirname(__file__), "data", "xml", xmlFileName)
syntax = Syntax(self)
self._loadedSyntaxes[xmlFileName] = syntax
qutepart.syntax.loader.loadSyntax(syntax, xmlFilePath)
return self._loadedSyntaxes[xmlFileName]
|
python
|
{
"resource": ""
}
|
q3282
|
SyntaxManager._getSyntaxByLanguageName
|
train
|
def _getSyntaxByLanguageName(self, syntaxName):
"""Get syntax by its name. Name is defined in the xml file
"""
xmlFileName = self._syntaxNameToXmlFileName[syntaxName]
return self._getSyntaxByXmlFileName(xmlFileName)
|
python
|
{
"resource": ""
}
|
q3283
|
SyntaxManager._getSyntaxBySourceFileName
|
train
|
def _getSyntaxBySourceFileName(self, name):
"""Get syntax by source name of file, which is going to be highlighted
"""
for regExp, xmlFileName in self._extensionToXmlFileName.items():
if regExp.match(name):
return self._getSyntaxByXmlFileName(xmlFileName)
else:
raise KeyError("No syntax for " + name)
|
python
|
{
"resource": ""
}
|
q3284
|
ContextStack.pop
|
train
|
def pop(self, count):
"""Returns new context stack, which doesn't contain few levels
"""
if len(self._contexts) - 1 < count:
_logger.error("#pop value is too big %d", len(self._contexts))
if len(self._contexts) > 1:
return ContextStack(self._contexts[:1], self._data[:1])
else:
return self
return ContextStack(self._contexts[:-count], self._data[:-count])
|
python
|
{
"resource": ""
}
|
q3285
|
ContextStack.append
|
train
|
def append(self, context, data):
"""Returns new context, which contains current stack and new frame
"""
return ContextStack(self._contexts + [context], self._data + [data])
|
python
|
{
"resource": ""
}
|
q3286
|
ContextSwitcher.getNextContextStack
|
train
|
def getNextContextStack(self, contextStack, data=None):
"""Apply modification to the contextStack.
This method never modifies input parameter list
"""
if self._popsCount:
contextStack = contextStack.pop(self._popsCount)
if self._contextToSwitch is not None:
if not self._contextToSwitch.dynamic:
data = None
contextStack = contextStack.append(self._contextToSwitch, data)
return contextStack
|
python
|
{
"resource": ""
}
|
q3287
|
StringDetect._makeDynamicSubsctitutions
|
train
|
def _makeDynamicSubsctitutions(string, contextData):
"""For dynamic rules, replace %d patterns with actual strings
Python function, which is used by C extension.
"""
def _replaceFunc(escapeMatchObject):
stringIndex = escapeMatchObject.group(0)[1]
index = int(stringIndex)
if index < len(contextData):
return contextData[index]
else:
return escapeMatchObject.group(0) # no any replacements, return original value
return _numSeqReplacer.sub(_replaceFunc, string)
|
python
|
{
"resource": ""
}
|
q3288
|
RegExpr._tryMatch
|
train
|
def _tryMatch(self, textToMatchObject):
"""Tries to parse text. If matched - saves data for dynamic context
"""
# Special case. if pattern starts with \b, we have to check it manually,
# because string is passed to .match(..) without beginning
if self.wordStart and \
(not textToMatchObject.isWordStart):
return None
#Special case. If pattern starts with ^ - check column number manually
if self.lineStart and \
textToMatchObject.currentColumnIndex > 0:
return None
if self.dynamic:
string = self._makeDynamicSubsctitutions(self.string, textToMatchObject.contextData)
regExp = self._compileRegExp(string, self.insensitive, self.minimal)
else:
regExp = self.regExp
if regExp is None:
return None
wholeMatch, groups = self._matchPattern(regExp, textToMatchObject.text)
if wholeMatch is not None:
count = len(wholeMatch)
return RuleTryMatchResult(self, count, groups)
else:
return None
|
python
|
{
"resource": ""
}
|
q3289
|
RegExpr._compileRegExp
|
train
|
def _compileRegExp(string, insensitive, minimal):
"""Compile regular expression.
Python function, used by C code
NOTE minimal flag is not supported here, but supported on PCRE
"""
flags = 0
if insensitive:
flags = re.IGNORECASE
string = string.replace('[_[:alnum:]]', '[\\w\\d]') # ad-hoc fix for C++ parser
string = string.replace('[:digit:]', '\\d')
string = string.replace('[:blank:]', '\\s')
try:
return re.compile(string, flags)
except (re.error, AssertionError) as ex:
_logger.warning("Invalid pattern '%s': %s", string, str(ex))
return None
|
python
|
{
"resource": ""
}
|
q3290
|
AbstractNumberRule._countDigits
|
train
|
def _countDigits(self, text):
"""Count digits at start of text
"""
index = 0
while index < len(text):
if not text[index].isdigit():
break
index += 1
return index
|
python
|
{
"resource": ""
}
|
q3291
|
Parser.highlightBlock
|
train
|
def highlightBlock(self, text, prevContextStack):
"""Parse block and return ParseBlockFullResult
return (lineData, highlightedSegments)
where lineData is (contextStack, textTypeMap)
where textTypeMap is a string of textType characters
"""
if prevContextStack is not None:
contextStack = prevContextStack
else:
contextStack = self._defaultContextStack
highlightedSegments = []
lineContinue = False
currentColumnIndex = 0
textTypeMap = []
if len(text) > 0:
while currentColumnIndex < len(text):
_logger.debug('In context %s', contextStack.currentContext().name)
length, newContextStack, segments, textTypeMapPart, lineContinue = \
contextStack.currentContext().parseBlock(contextStack, currentColumnIndex, text)
highlightedSegments += segments
contextStack = newContextStack
textTypeMap += textTypeMapPart
currentColumnIndex += length
if not lineContinue:
while contextStack.currentContext().lineEndContext is not None:
oldStack = contextStack
contextStack = contextStack.currentContext().lineEndContext.getNextContextStack(contextStack)
if oldStack == contextStack: # avoid infinite while loop if nothing to switch
break
# this code is not tested, because lineBeginContext is not defined by any xml file
if contextStack.currentContext().lineBeginContext is not None:
contextStack = contextStack.currentContext().lineBeginContext.getNextContextStack(contextStack)
elif contextStack.currentContext().lineEmptyContext is not None:
contextStack = contextStack.currentContext().lineEmptyContext.getNextContextStack(contextStack)
lineData = (contextStack, textTypeMap)
return lineData, highlightedSegments
|
python
|
{
"resource": ""
}
|
q3292
|
IndentAlgCStyle.findLeftBrace
|
train
|
def findLeftBrace(self, block, column):
"""Search for a corresponding '{' and return its indentation
If not found return None
"""
block, column = self.findBracketBackward(block, column, '{') # raise ValueError if not found
try:
block, column = self.tryParenthesisBeforeBrace(block, column)
except ValueError:
pass # leave previous values
return self._blockIndent(block)
|
python
|
{
"resource": ""
}
|
q3293
|
IndentAlgCStyle.trySwitchStatement
|
train
|
def trySwitchStatement(self, block):
"""Check for default and case keywords and assume we are in a switch statement.
Try to find a previous default, case or switch and return its indentation or
None if not found.
"""
if not re.match(r'^\s*(default\s*|case\b.*):', block.text()):
return None
for block in self.iterateBlocksBackFrom(block.previous()):
text = block.text()
if re.match(r"^\s*(default\s*|case\b.*):", text):
dbg("trySwitchStatement: success in line %d" % block.blockNumber())
return self._lineIndent(text)
elif re.match(r"^\s*switch\b", text):
if CFG_INDENT_CASE:
return self._increaseIndent(self._lineIndent(text))
else:
return self._lineIndent(text)
return None
|
python
|
{
"resource": ""
}
|
q3294
|
IndentAlgCStyle.indentLine
|
train
|
def indentLine(self, block, autoIndent):
""" Indent line.
Return filler or null.
"""
indent = None
if indent is None:
indent = self.tryMatchedAnchor(block, autoIndent)
if indent is None:
indent = self.tryCComment(block)
if indent is None and not autoIndent:
indent = self.tryCppComment(block)
if indent is None:
indent = self.trySwitchStatement(block)
if indent is None:
indent = self.tryAccessModifiers(block)
if indent is None:
indent = self.tryBrace(block)
if indent is None:
indent = self.tryCKeywords(block, block.text().lstrip().startswith('{'))
if indent is None:
indent = self.tryCondition(block)
if indent is None:
indent = self.tryStatement(block)
if indent is not None:
return indent
else:
dbg("Nothing matched")
return self._prevNonEmptyBlockIndent(block)
|
python
|
{
"resource": ""
}
|
q3295
|
IndentAlgScheme._findExpressionEnd
|
train
|
def _findExpressionEnd(self, block):
"""Find end of the last expression
"""
while block.isValid():
column = self._lastColumn(block)
if column > 0:
return block, column
block = block.previous()
raise UserWarning()
|
python
|
{
"resource": ""
}
|
q3296
|
IndentAlgScheme._lastWord
|
train
|
def _lastWord(self, text):
"""Move backward to the start of the word at the end of a string.
Return the word
"""
for index, char in enumerate(text[::-1]):
if char.isspace() or \
char in ('(', ')'):
return text[len(text) - index :]
else:
return text
|
python
|
{
"resource": ""
}
|
q3297
|
IndentAlgScheme._findExpressionStart
|
train
|
def _findExpressionStart(self, block):
"""Find start of not finished expression
Raise UserWarning, if not found
"""
# raise expession on next level, if not found
expEndBlock, expEndColumn = self._findExpressionEnd(block)
text = expEndBlock.text()[:expEndColumn + 1]
if text.endswith(')'):
try:
return self.findBracketBackward(expEndBlock, expEndColumn, '(')
except ValueError:
raise UserWarning()
else:
return expEndBlock, len(text) - len(self._lastWord(text))
|
python
|
{
"resource": ""
}
|
q3298
|
_getSmartIndenter
|
train
|
def _getSmartIndenter(indenterName, qpart, indenter):
"""Get indenter by name.
Available indenters are none, normal, cstyle, haskell, lilypond, lisp, python, ruby, xml
Indenter name is not case sensitive
Raise KeyError if not found
indentText is indentation, which shall be used. i.e. '\t' for tabs, ' ' for 4 space symbols
"""
indenterName = indenterName.lower()
if indenterName in ('haskell', 'lilypond'): # not supported yet
logger.warning('Smart indentation for %s not supported yet. But you could be a hero who implemented it' % indenterName)
from qutepart.indenter.base import IndentAlgNormal as indenterClass
elif 'none' == indenterName:
from qutepart.indenter.base import IndentAlgBase as indenterClass
elif 'normal' == indenterName:
from qutepart.indenter.base import IndentAlgNormal as indenterClass
elif 'cstyle' == indenterName:
from qutepart.indenter.cstyle import IndentAlgCStyle as indenterClass
elif 'python' == indenterName:
from qutepart.indenter.python import IndentAlgPython as indenterClass
elif 'ruby' == indenterName:
from qutepart.indenter.ruby import IndentAlgRuby as indenterClass
elif 'xml' == indenterName:
from qutepart.indenter.xmlindent import IndentAlgXml as indenterClass
elif 'haskell' == indenterName:
from qutepart.indenter.haskell import IndenterHaskell as indenterClass
elif 'lilypond' == indenterName:
from qutepart.indenter.lilypond import IndenterLilypond as indenterClass
elif 'lisp' == indenterName:
from qutepart.indenter.lisp import IndentAlgLisp as indenterClass
elif 'scheme' == indenterName:
from qutepart.indenter.scheme import IndentAlgScheme as indenterClass
else:
raise KeyError("Indenter %s not found" % indenterName)
return indenterClass(qpart, indenter)
|
python
|
{
"resource": ""
}
|
q3299
|
Indenter.autoIndentBlock
|
train
|
def autoIndentBlock(self, block, char='\n'):
"""Indent block after Enter pressed or trigger character typed
"""
currentText = block.text()
spaceAtStartLen = len(currentText) - len(currentText.lstrip())
currentIndent = currentText[:spaceAtStartLen]
indent = self._smartIndenter.computeIndent(block, char)
if indent is not None and indent != currentIndent:
self._qpart.replaceText(block.position(), spaceAtStartLen, indent)
|
python
|
{
"resource": ""
}
|
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