public Alphabet(String alphabet)
{
this._alphabet = alphabet.ToCharArray();
(Int32 minValue, Int32 maxValue) = this.CalculateBounds(this._alphabet);
{
(Boolean containsDuplicate, Char duplicatedChar) = this.ContainsDuplicate(this._alphabet, minValue, maxValue);
if (containsDuplicate)
{
throw new InvalidOperationException("Illegal alphabet: repeated character = '" + duplicatedChar + "'");
}
}
this._index = new AlphabetCompactIndex(minValue, maxValue);
for (int i = 0; i < this._index.Length; i++)
{
this._index[i] = -1;
}
for (int i = 0; i < this._alphabet.Length; i++)
{
this._index[this._alphabet[i]] = i;
}
this.Radix = alphabet.Length;
this.BinaryLogRadix = this.CalculateBinaryLogRadix(alphabet.Length);
this.MinChar = (Char)minValue;
this.MaxChar = (Char)maxValue;
}
public Alphabet(Int32 radix)
{
this._alphabet = new Char[radix];
this._index = new AlphabetCompactIndex(0, radix - 1);
for (int i = 0; i < radix; i++)
{
this._alphabet[i] = (Char)i;
this._index[i] = i;
}
this.Radix = radix;
this.BinaryLogRadix = this.CalculateBinaryLogRadix(radix);
this.MinChar = (Char)0;
this.MaxChar = (Char)(radix - 1);
}
