/// <summary>
/// Ersetzt den Huffmanncode durch die ASCII zeichen
/// </summary>
/// <param name="huffmann"></param>
/// <returns></returns>
public string Huffmann_Ascii(string huffmann)
{
var keynotFound = false;
var valueString = "";
string buchstabe = "";
for (int i = 0; i < huffmann.Length; i++)
{
if (keynotFound)
{
buchstabe += huffmann.Substring(i, 1);
}
else
{
buchstabe = huffmann.Substring(i, 1);
}
if (HuffmannToAscii.ContainsKey(buchstabe))
{
valueString += HuffmannToAscii[buchstabe];
keynotFound = false;
}
else
{
keynotFound = true;
}
}
return(valueString);
}
/// <summary>
/// Liest die Codetabelle aus dem übergebenen Dateinamen aus und Speichert die Werte in den Dictionaries
/// </summary>
/// <param name="filename"></param>
public void ReadCodeTable(string filename)
{
HuffmannToAscii.Clear();
AsciiToHuffmann.Clear();
var file = new System.IO.StreamReader(filename);
while (!file.EndOfStream)
{
var line = file.ReadLine();
var parts = line.Split(';');
if (parts.Length == 2)
{
HuffmannToAscii.Add(parts[1], parts[0]);
AsciiToHuffmann.Add(parts[0], parts[1]);
}
}
}