private void InitData(string fileName)
{
var lettersCount = new Dictionary <char, double>();
_trgetBigrams = new double[_alphabet.Length, _alphabet.Length];
for (int i = 0; i < _alphabet.Length; i++)
{
for (int j = 0; j < _alphabet.Length; j++)
{
_trgetBigrams[i, j] = 0;
}
}
var text = ReadText(fileName);
var textMaker = new TextMaker();
text = textMaker.ProcessText(text, _alphabet);
for (int i = 0; i < _alphabet.Length; i++)
{
lettersCount.Add(_alphabet[i], 0);
}
for (int i = 0; i < text.Length; i++)
{
lettersCount[text[i]]++;
if (i != text.Length - 1)
{
_trgetBigrams[GetIndex(text[i]), GetIndex(text[i + 1])]++;
}
}
for (int i = 0; i < _alphabet.Length; i++)
{
for (int j = 0; j < _alphabet.Length; j++)
{
_trgetBigrams[i, j] /= text.Length - 1;
}
}
_lettersOrderByCount = lettersCount.OrderBy(x => x.Value).ToDictionary(x => x.Key, x => x.Value).Keys.ToList();
}
public string EncodeByKey(string text, string key)
{
var textMaker = new TextMaker();
text = textMaker.ProcessText(text, _alphabet);
for (int i = 0; i < _alphabet.Length; i++)
{
if (key.IndexOf(_alphabet[i]) < 0)
{
key = key + _alphabet[i];
}
}
var sb = new StringBuilder();
for (int i = 0; i < text.Length; i++)
{
sb.Append(_alphabet[key.IndexOf(text[i])]);
}
return(sb.ToString());
}