private IList <String> GenerateCodes(FrequencyTable table)
{
var codes = new List <String>();
var number = 1;
while (true)
{
for (var i = 0; i < Math.Pow(2, number); i++)
{
var code = this.GetBinary(i, number);
if (IsValid(code))
{
codes.Add(code);
}
if (codes.Count >= table.SybmolsFrequency.Count)
{
break;
}
}
if (codes.Count >= table.SybmolsFrequency.Count)
{
break;
}
number++;
}
return(codes);
}
private FrequencyTable CreateFrequencyTable(String fileString)
{
var table = new FrequencyTable();
table.CreateFrequencyTable(fileString);
return(table);
}
private void ShowFrequencyTable(FrequencyTable table)
{
foreach (var symbol in table.SortedSymbols)
{
textBoxFrequency.Text += String.Concat("'", symbol, "' - ",
table.SybmolsFrequency[symbol]);
textBoxFrequency.Text += String.Concat(" - ", coders[0].CodesTable[symbol],
Environment.NewLine);
}
}
public String Encode(String text, FrequencyTable table)
{
var codes = GenerateCodes(table);
var symbolsFrequency = table.SortedSymbols;
FillTables(symbolsFrequency, codes);
var stringBuiler = new StringBuilder();
foreach (var symbol in text)
{
stringBuiler.Append(CodesTable[symbol]);
stringBuiler.Append(Separator);
}
stringBuiler.Remove(stringBuiler.Length - Separator.Length, Separator.Length);
return(stringBuiler.ToString());
}
private String Encode(Coder coder, String text, FrequencyTable table)
{
return(coder.Encode(text, table));
}