def _parse(self, stream, context, path):
b = byte2int(_read_stream(stream, 1))
if b & 0x80 == 0:
num = b
elif b & 0xc0 == 0x80:
num = ((b & 0x3f) << 8) + byte2int(_read_stream(stream, 1))
elif b & 0xe0 == 0xc0:
num = (b & 0x1f) << 24
num += byte2int(_read_stream(stream, 1)) << 16
num += byte2int(_read_stream(stream, 1)) << 8
num += byte2int(_read_stream(stream, 1))
else:
raise ConstructError('DotNetUInt encountered an invalid string')
return num
def _parse(self, stream, context):
value = 0
while True:
tmp = ord(_read_stream(stream, 1))
value = (value << 7) | (tmp & 0x7f)
if tmp & 0x80 == 0:
break
return value
def _parse(self, stream, context):
value = 0
while True:
tmp = ord(_read_stream(stream, 1))
value = (value << 7) | (tmp & 0x7f)
if tmp & 0x80 == 0:
break
return value
def _parse(self, stream, context):
length = self.lengthfield._parse(stream, context)
obj = _read_stream(stream, length)
if self.encoding:
if isinstance(self.encoding, str):
obj = obj.decode(self.encoding)
else:
obj = self.encoding.decode(obj)
return obj
def _parse(self, stream, context):
value = 0
while True:
tmp = ord(_read_stream(stream, 1))
value = (value << 7) | (tmp & 0x7f)
if tmp & 0x80 == 0:
break
if (value & 1) == 0x00:
return value >> 1
else:
return -((value >> 1) + 1)
def _parse(self, stream, context):
value = 0
while True:
tmp = ord(_read_stream(stream, 1))
value = (value << 7) | (tmp & 0x7f)
if tmp & 0x80 == 0:
break
if (value & 1) == 0x00:
return value >> 1
else:
return -((value >> 1) + 1)
def _parse(self, stream, context):
tag = ord(_read_stream(stream, 1))
# single byte or longer?
if tag & 0x08:
# 11 bits or longer?
if tag & 0x10:
# longer. 3-bit length or longer?
if tag & 0xe0 == 0xe0:
# long length!
length = self._parse(stream, context) + (tag >> 5) + 2
return self._decode_bigint(_read_stream(stream, length))
else:
# 3-bit length
return self._decode_bigint(
_read_stream(stream, 2 + (tag >> 5)))
else:
# 11 bits
w = ord(_read_stream(stream, 1))
return ((tag & 0xe0) << 3) | w
else:
# four bits
return tag >> 4
def _parse(self, stream, context):
l = VLQ("").parse_stream(stream)
return _read_stream(stream, l)
def _parse(self, stream, context, path):
if _read_stream(stream, 1) != '\xff':
raise ConstructError('DotNetNullString encounted an invalid byte.')
return None
def _parse(self, stream, context):
l = VLQ("").parse_stream(stream)
return _read_stream(stream, l)