some serialisation functions
Project description
I use these functions to serialise and de-serialise non-negative integers of arbitrary size and run length encoded block data.
The integers are encoded as octets in big-endian order, with the high bit indicating that more octets follow.
get_bs(bs, offset=0): collect an integer from the bytes bs at the specified offset
get_bsdata(bs, offset=0): collect a run length encoded data block from the bytes bs at the specified offset
get_bsfp(fp): collect an integer from the binary file fp
put_bs(n): return the bytes encoding of the supplied integer n
put_bsdata(data): return the bytes run length encoding of the supplied data block
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