43 lines
887 B
Python
43 lines
887 B
Python
from modules.config import charset
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from ezzthread import threaded
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def encode(n):
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try:
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return charset[n]
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except IndexError:
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raise Exception(f"Cannot encode {n}")
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def decode(s):
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try:
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return charset.index(s)
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except ValueError:
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raise Exception(f"Cannot decode {s}")
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def dec_to_base(dec=0, base=16):
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if dec < base:
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return encode(dec)
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else:
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return dec_to_base(dec // base, base) + encode(dec % base)
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def base_to_dec(s, base=16, rec_pow=0):
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if s == str():
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return 0
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else:
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return decode(s[-1]) * (base ** rec_pow) + base_to_dec(s[0:-1], base, rec_pow + 1)
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class Page:
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@staticmethod
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def from_index(index: int) -> str:
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return dec_to_base(index, len(charset))
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class Index:
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@staticmethod
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def from_page(page: str) -> int:
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return base_to_dec(page, len(charset))
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