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Accepts binary data and makes it available as a stream of bits or one byte
at a time. Python does not provide a built-in way to read a stream of bits,
or a way to represent a single bit. Thus, this class uses character '0'
or '1' to represent the status of each bit.
Data is converted into the '0' and '1' characters one byte at a time, since
that operation multiplies the size of the data by a factor of 8, and it may
not be desirable to inflate all the data at once.
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:param data: binary data in a string
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converts one byte at a time into a bit representation, waiting until
those bits have been consumed before converting another byte
:return: next bit in the stream, either '0' or '1'
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:return: next entire byte in the stream, as an int
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Produces a string representation of a byte as a base-2 number.
Python versions < 2.6 lack the "bin()" builtin as well as the
below "format()" method of strings, so this method falls back
to using a home-brew implementation.
:param byte: positive int < 256
:return: binary representation of byte as 8-char string
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In python versions < 2.6, there is no built-in way to produce a string
representation of base-2 data. Thus, we have to do it manually.
:param byte: positive int < 256
:return: binary representation of byte as 8-char string
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combine unsigned ints read from a bit stream into one unsigned number,
reading data as big-endian
:param data: iterable of positive ints, each representing a byte of
uint binary data that should be combined
such that the right-most byte stays as-is, and then
each byte to the left gets left-shifted by 8 * n bits.
For example, [1, 2] would give you 258 ((1 << 8) + 2)
:type data: iterable of positive ints
:return: positive int, composed from input bytes combined as
one int
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