本文整理汇总了Python中hachoir.field.FieldSet类的典型用法代码示例。如果您正苦于以下问题：Python FieldSet类的具体用法？Python FieldSet怎么用？Python FieldSet使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了FieldSet类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: __init__
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
value = 0
for field in self:
value <<= 15
value += (field.value & 0x7fff)
self.createValue = lambda: value示例2: __init__
def __init__(self, parent, name, toc, description, size=None):
FieldSet.__init__(self, parent, name, description, size=size)
self.toc = toc
if self["format/byte_big_endian"].value:
self.endian = BIG_ENDIAN
else:
self.endian = LITTLE_ENDIAN示例3: __init__
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
if not self._size:
frame_size = self.getFrameSize()
if not frame_size:
raise ParserError("MPEG audio: Invalid frame %s" % self.path)
self._size = min(frame_size * 8, self.parent.size - self.address)示例4: __init__
def __init__(self, parent, ids):
FieldSet.__init__(self, parent, "?[]")
# Set name
id = self['id'].value
self.val = ids.get(id)
if not self.val:
if id == 0xBF:
self.val = 'CRC-32[]', Binary
elif id == 0xEC:
self.val = 'Void[]', Binary
elif id == 0x1B538667:
self.val = 'SignatureSlot[]', signature
else:
self.val = 'Unknown[]', Binary
self._name = self.val[0]
# Compute size
size = self['size']
if size.value is not None:
self._size = size.address + size.size + size.value * 8
elif self._parent._parent:
raise ParserError("Unknown length (only allowed for the last Level 0 element)")
elif self._parent._size is not None:
self._size = self._parent._size - self.address示例5: __init__
def __init__(self, parent, name, num_digests, digest_desc=None, desc=None):
FieldSet.__init__(self, parent, name, desc)
self.num_digests = num_digests
if digest_desc is None:
self.digest_desc = ['stream %d' % i for i in xrange(num_digests)]
else:
self.digest_desc = digest_desc示例6: __init__
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
key = self["type"].value & 31
if self['class'].value == 0:
# universal object
if key in self.TYPE_INFO:
self._name, self._handler, self._description, create_desc = self.TYPE_INFO[key]
if create_desc:
self.createDescription = lambda: "%s: %s" % (self.TYPE_INFO[key][2], create_desc(self))
self._description = None
elif key == 31:
raise ParserError("ASN.1 Object: tag bigger than 30 are not supported")
else:
self._handler = None
elif self['form'].value:
# constructed: treat as sequence
self._name = 'seq[]'
self._handler = readSequence
self._description = 'constructed object type %i' % key
else:
# primitive, context/private
self._name = 'raw[]'
self._handler = readASCIIString
self._description = '%s object type %i' % (self['class'].display, key)
field = self["size"]
self._size = field.address + field.size + field.value * 8示例7: __init__
def __init__(self, parent, name, desc=None):
FieldSet.__init__(self, parent, name, desc)
pos = self.stream.searchBytesLength(CrossReferenceTable.MAGIC, False)
if pos is None:
raise ParserError("Can't find xref starting at %u" %
(self.absolute_address // 8))
self._size = 8 * pos - self.absolute_address示例8: __init__
def __init__(self, *args):
FieldSet.__init__(self, *args)
code = self["code"].value
if code in self.ext_code:
self._name, self.parser, self._description = self.ext_code[code]
else:
self.parser = defaultExtensionParser示例9: __init__
def __init__(self, parent, name, **kw):
FieldSet.__init__(self, parent, name, **kw)
code = self["bytecode"].value
if code not in self.bytecode_info:
raise ParserError('Unknown bytecode %r at position %s'
% (code, self.absolute_address // 8))
self.code_info = self.bytecode_info[code]
if not name:
self._name = self.code_info[0]
if code == "l":
self.createValue = self.createValueLong
elif code in ("i", "I", "f", "g"):
self.createValue = lambda: self["value"].value
elif code == "T":
self.createValue = lambda: True
elif code == "F":
self.createValue = lambda: False
elif code in ("x", "y"):
self.createValue = self.createValueComplex
elif code in ("s", "t", "u"):
self.createValue = self.createValueString
self.createDisplay = self.createDisplayString
if code == 't':
if not hasattr(self.root, 'string_table'):
self.root.string_table = []
self.root.string_table.append(self)
elif code == 'R':
if hasattr(self.root, 'string_table'):
self.createValue = self.createValueStringRef示例10: __init__
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
self._size = (11 + self["size"].value) * 8
tag = self["tag"].value
if tag in self.tag_info:
self._name, self.parser, self._description = self.tag_info[tag]
else:
self.parser = None示例11: __init__
def __init__(self, *args):
FieldSet.__init__(self, *args)
self._size = (8 + alignValue(self["size"].value, 2)) * 8
tag = self["type"].value
if tag in self.TAG_INFO:
self._name, self._description, self._parser = self.TAG_INFO[tag]
else:
self._parser = None示例12: __init__
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
try:
self._name, self.handler, self._description = self.TAG_INFO[self["tag"].value]
except KeyError:
self.handler = None
size = self["size"]
self._size = size.address + size.size + alignValue(size.value, 2) * 8示例13: __init__
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
self._size = 32 + self["metadata_length"].value * 8
try:
key = self["block_type"].value
self._name, self._description, self.handler = self.BLOCK_TYPES[key]
except KeyError:
self.handler = None示例14: __init__
def __init__(self, *args, **kwargs):
if 'prev_command' in kwargs:
self.prev_command = kwargs['prev_command']
del kwargs['prev_command']
else:
self.prev_command = None
self.command = None
FieldSet.__init__(self, *args, **kwargs)示例15: __init__
def __init__(self, parent, name, entry, size=None):
FieldSet.__init__(self, parent, name, size=entry["size"].value * 8)
self.entry = entry
res_type = self.getResType()
if res_type in RESOURCE_TYPE:
self._name, description, self._parser = RESOURCE_TYPE[res_type]
else:
self._parser = None