private static HuffmanCoder CreateFromText(string text)
{
var leafNodes = text.ToCharArray()
.GroupBy(c => c)
.Select(g => new TreeNode(g.Key, ((double)g.Count()) / text.Length));
return(HuffmanCoder.Create(leafNodes));
}
private static HuffmanCoder CreateFromSignature(string signature)
{
var leafNodes = signature.Split("|^").Select(s =>
{
var ss = s.Split(",^");
var c = Utilities.StrToChar(ss[0]);
var probValue = double.Parse(ss[1]);
return(new TreeNode(c, probValue));
});
return(HuffmanCoder.Create(leafNodes));
}