static void Main(string[] args)
{
try
{
LZWCompress lZW = new LZWCompress();
Console.WriteLine("Escribe el string a comprimir");
string text = Console.ReadLine();
Console.WriteLine("Se ha guardado el string con éxito para comprimir");
string CompressedText = lZW.CompressText(text);
Console.WriteLine("El resultado de la compresión es el siguiente:");
Console.WriteLine(CompressedText);
Console.WriteLine("¿Desea descomprimirlo? | Presione 'Y'. De lo contrario, presione cualquier otra tecla.");
if (Console.ReadKey().Key == ConsoleKey.Y)
{
Console.Clear();
Console.WriteLine("El resultado de la descompresión es el siguiente:");
Console.WriteLine(lZW.DecompressText(CompressedText));
Console.ReadLine();
}
Console.WriteLine("Feliz día!");
Console.ReadLine();
}
catch
{
Console.WriteLine("Inserte un string válido");
Console.ReadLine();
Console.Clear();
}
}
public void EmptyAlphabetNonEmptyStringEncryptionTest()
{
string empty = string.Empty;
var zipper = new LZWCompress(empty);
zipper.Encrypt("a");
}
public byte[] Encode(byte[] content)
{
var lzw = new LZWCompress();
var input = Encoding.ASCII.GetString(content);
var output = lzw.Compress(input);
var joined = string.Join(" ", output.Select(n => n));
return(Encoding.ASCII.GetBytes(joined));
}
public void EmptyStringTest()
{
string empty = string.Empty;
var zipper = new LZWCompress(empty);
var zipperPT = new LZWCompressPT(empty);
var unzipper = new LZWDecompress(empty);
Assert.AreEqual(empty, zipper.Encrypt(empty));
Assert.AreEqual(empty, zipperPT.Encrypt(empty));
Assert.AreEqual(empty, unzipper.Decrypt(empty));
}
private void LZWCompressButton_Click_1(object sender, EventArgs e)
{
LZWCompress _lzwCompress = new LZWCompress(this);
IReadFileController _readTextFileController = new ReadFileController();
IFileOperationsController _fileOperationController = new FileOperationsController();
string compressedFilePath = null;
compressedFilePathRichTextBox.Text = filePathRichBox.Text.Remove(filePathRichBox.Text.Length - 4) + "Compressed.txt";
_lzwCompress.LZWCompressFile(filePathRichBox.Text, compressedFilePathRichTextBox.Text, Convert.ToInt16(selectedMaxBitSizeTextbox.Text));
compressedFilePath = filePathRichBox.Text.Remove(filePathRichBox.Text.Length - 4) + "Compressed.txt";
compressedByteSizeTextBox.Text = _fileOperationController.getFileByteSize(compressedFilePath);
}
public void AllStringsTest()
{
string fullAlphabet = "abcdefghijklmnopqrstuvwxyz";
int maxAlphabetLength = 12;
int maxLength = 6;
StringBuilder builder = new StringBuilder();
// For alphabets of different sizes
for (int alphabetSize = 1; alphabetSize <= maxAlphabetLength; ++alphabetSize)
{
string alphabet = fullAlphabet.Substring(0, alphabetSize);
var zipper = new LZWCompress(alphabet);
var zipperPT = new LZWCompressPT(alphabet);
var unzipper = new LZWDecompress(alphabet);
// For strings in current alphabet of different size
for (int strlen = 0; strlen <= maxLength; ++strlen)
{
// Number of all possible strings in current alphabet of current size
int strings = (int)Math.Pow(alphabet.Length, strlen);
for (int i = 0; i < strings; ++i)
{
builder.Clear();
int mask = i;
for (int shift = 0; shift < strlen; ++shift)
{
builder.Append(alphabet[mask % alphabet.Length]);
mask >>= 1;
}
string message = builder.ToString();
string encrypted = zipper.Encrypt(message);
string encryptedPT = zipperPT.Encrypt(message);
Assert.AreEqual(encrypted, encryptedPT);
Assert.AreEqual(message, unzipper.Decrypt(encrypted));
}
}
}
}