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Unsigned variable-length integers

Project description

uvarint

Unsigned variable-length integers. A type of variable-length quantity.

Usage

import uvarint

buffer = uvarint.encode(16384)                  # b'\x80\x80\x01'
integer, bytes_read = uvarint.decode(buffer)    # 16384

big = uvarint.encode(2 ** 63)
uvarint.decode(big)              # Raises OverflowError; decoder limited to 9 bytes by default
uvarint.decode(big, limit=16)    # Success; use math.inf for unlimited decoding

multiple  = uvarint.encode(100)
multiple += uvarint.encode(200)
multiple += uvarint.encode(300)
uvarint.expect(3, multiple).integers    # [100, 200, 300]
uvarint.cut(0, multiple)                # Slice(integers=[], rest=b'd\xc8\x01\xac\x02')
uvarint.cut(1, multiple)                # Slice(integers=[100], rest=b'\xc8\x01\xac\x02')
uvarint.cut(2, multiple)                # Slice(integers=[100, 200], rest=b'\xac\x02')
uvarint.cut(3, multiple)                # Slice(integers=[100, 200, 300], rest=b'')

References

License

This module is licensed under the MIT license.

Project details


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