public BitDecoder(char[] alphabet)
{
var valid = EncodedString.TestValidAlphabet(alphabet);
if (AlphabetValidity.Valid != valid)
{
throw new ArgumentException(paramName: nameof(alphabet), message: valid.ToString());
}
CharacterBitWidth = (byte)Math.Log(alphabet.Length, 2);
Alphabet = new Dictionary <char, ulong>();
for (var i = 0L; i < alphabet.LongLength; i += 1)
{
Alphabet[alphabet[i]] = (ulong)i;
}
HasPadding = false;
PaddingCharacter = '\0';
}
public BitEncoder(char[] alphabet)
{
var valid = EncodedString.TestValidAlphabet(alphabet);
if (AlphabetValidity.Valid != valid)
{
throw new ArgumentException(paramName: nameof(alphabet), message: valid.ToString());
}
Alphabet = alphabet;
CharacterBitWidth = (byte)Math.Log(alphabet.Length, 2);
Mask = unchecked ((1ul << CharacterBitWidth) - 1);
int a = 0;
CharactersToMatchByteLength = 0;
do
{
a += CharacterBitWidth;
CharactersToMatchByteLength += 1;
} while(a % 8 != 0);
HasPadding = false;
PaddingCharacter = '\0';
}