Duckparse is binary parsers for humans. It is similar to Construct and Kaitai. But it's more easy to write.
Duckparse is using PEP 526 type annotations. Check our gallery for more examples!
Example:
>>> from io import BytesIO
>>> from duckparse import stream_parser
>>> from duckparse.btypes import U8, Bits
>>> @stream_parser
... class ExampleFormat:
... width: U8
... height: U8
... some_bitfield: Bits[1]
>>> result = ExampleFormat(BytesIO(b"\x03\x02\xFF"))
>>> print(result)
ExampleFormat(width=3, height=2, some_bitfield=1)Or you can define a new data type or an enum
from duckparse import datakind, enumkind
@datakind
class I64():
def __processor__(self, reader: Reader) -> bytearray:
return reader.primitive.i64.unpack(reader.read_bytes(8))[0]
@enumkind
class Color:
RED = 1
GREEN = 2
BLUE = 3