/// <summary>
/// Method used for testing that displays encoding to the console.
/// </summary>
/// <param name="root"></param>
private void DisplayEncodingTable(BinaryTreeNode <CharacterFrequency> root)
{
if (root != null)
{
Encoding.Append("0");
DisplayEncodingTable(root.Left);
if (root.IsLeaf())
{
var charEncoding = new CharacterEncoding((byte)root.Data.Character, Encoding.ToString());
Console.Write(charEncoding.Character.ToString());
Console.Write(" - ");
Console.WriteLine(charEncoding.Encoding);
}
Encoding.Append("1");
DisplayEncodingTable(root.Right);
if (Encoding.Length > 0)
{
Encoding.Remove(Encoding.Length - 1, 1);
}
}
else
{
// Remove a character from the encoding string// Check and reove multiple 0's too maybe?
Encoding.Remove(Encoding.Length - 1, 1);
//Console.WriteLine("remove!");
}
}
public static CharacterEncoding[] BuildEmptyArray(int size)
{
CharacterEncoding[] arr = new CharacterEncoding[size];
for (int i = 0; i < arr.Length; i++)
{
arr[i] = new CharacterEncoding((byte)i, string.Empty);
}
return(arr);
}
/// <summary>
/// Writes CharEncodings to file. For Decompression using RegEx.
/// </summary>
public void FileWriterEncoding()
{
StringBuilder path = new StringBuilder();
path.Append(Directory.GetCurrentDirectory());
path.Append(@"\" + FileWrite + ".txt");
try
{
using (StreamWriter writer = new StreamWriter(path.ToString()))
{
CharacterEncoding.WriteEncoding(writer, CharEncodings);
}
Console.WriteLine($"File {FileWrite}.txt has been written");
}
catch
{
Console.WriteLine("Could not write File");
}
}
static void Main(string[] args)
{
const byte INPUT = 0;
const byte OUTPUT = 1;
const byte MODE = 2;
CompressionInputValidation(args);
var compressionManager = new CompressionManager
{
FileRead = args[INPUT],
FileWrite = args[OUTPUT],
CharFrequencies = CharacterFrequency.BuildEmptyArray(256),
CharEncodings = CharacterEncoding.BuildEmptyArray(256)
};
if (args[MODE].ToUpper() == "COMPRESS")
{
compressionManager.Compress();
}
else if (args[MODE].ToUpper() == "COMPRESSTEST")
{
compressionManager.CompressTest();
}
else if (args[MODE].ToUpper() == "DECOMPRESS")
{
compressionManager.Decompress();
}
else
{
Console.WriteLine("Please enter COMPRESS or DECOMPRESS after both files");
Console.ReadKey();
Environment.Exit(0);
}
#endregion
}
