Move-to-front transform: Difference between revisions

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# mtfwiki.py

# Instead of always transmitting an "original" dictionary, it is simpler to just agree on an initial set.

# Here we use the 256 possible values of a byte:

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>>> import mtfwiki

[87, 105, 107, 1, 112, 104, 104, 3, 102]

>>> mtfwiki.decode([119, 106, 108, 1, 113, 105, 105, 3, 103])

>>> # Sort the ASCII blocks: first lowercase, then uppercase, punctuation/number, and finally the control code and the non-ASCII stuff

>>> mtfwiki.common_dictionary = block32(0x60) + block32(0x40) + block32(0x20) + block32(0x00) + list(range(128, 256))

[55, 10, 12, 1, 17, 9, 9, 3, 7]

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