# -*- coding: UTF-8 -*-

"""Octal Codec - octal content encoding.

This codec:

- en/decodes strings from str to str

- en/decodes strings from bytes to bytes

- decodes file content to str (read)

- encodes file content from str to bytes (write)

"""

from ..__common__ import *

__examples1__ = {

'enc(octal-spaced|octals_spaced)': {'this is a test': "164 150 151 163 40 151 163 40 141 40 164 145 163 164"},

}

__examples2__ = {

'enc(octal|octals)': {'this is a test': "164150151163040151163040141040164145163164"},

}

oct2 = lambda i: oct(i).lstrip("0").replace("o", "")

ENCMAP1 = {chr(i): oct2(i) for i in range(256)}

ENCMAP2 = {chr(i): oct2(i).zfill(3) for i in range(256)}

add_map("octal-spaced", ENCMAP1, sep=" ", pattern=r"^octals?[-_]spaced$", examples=__examples1__,

entropy=lambda e: .07258*e+2.3739, printables_rate=1.)

add_map("octal", ENCMAP2, pattern=r"^octals?$", examples=__examples2__, entropy=lambda e: .08803*e+2.19498,

printables_rate=1.)