private static string ConstructCurrentDeciphering(string[] selections,
int[] selectionShifts)
{
string[] currentSelections = new string[selections.Length];
for (int i = 0; i < currentSelections.Length; i++)
{
currentSelections[i] = FrequencyAnalysis.DecipherTextByMapping(selections[i],
ProgramMath.GetCharacterMappingByCaesarCipherOffset(selectionShifts[i]));
}
return(FrequencyAnalysis.ReconstructTextFromOffsetSelections(currentSelections));
}
static void DebugTextSplitAndReconstruct()
{
Console.Write("Text> ");
string text = Console.ReadLine().ToUpper();
Console.Write("Offset> ");
int offset = int.Parse(Console.ReadLine());
string[] newTexts = FrequencyAnalysis.SplitTextByOffset(text, offset);
foreach (string newText in newTexts)
{
Console.WriteLine(newText);
}
string reconstruction = FrequencyAnalysis.ReconstructTextFromOffsetSelections(newTexts);
Console.WriteLine(reconstruction);
}
static void ReleaseMain(string[] args)
{
Console.Write("Text> ");
string text;
string input = Console.ReadLine().ToUpper().Replace(" ", "").ToUpper();
if (input[0] == '\\')
{
text = GetTextFromFile(input.Substring(1)).ToUpper();
}
else
{
text = input;
}
foreach (char c in text)
{
if (!validCharacters.Contains(c))
{
Console.WriteLine($"Error: Invalid character in text ({c})");
return;
}
}
int keyLengthSelection = KeyLengthSelection(text);
Console.Write("Automatically decipher text (0/1)?> ");
bool autoDecipher = int.Parse(Console.ReadLine()) != 0;
if (autoDecipher)
{
string[] offsetTextSelections = FrequencyAnalysis.SplitTextByOffset(text, keyLengthSelection);
string[] decipheredStrings = new string[offsetTextSelections.Length];
int[] shiftAmounts = new int[offsetTextSelections.Length];
for (int i = 0; i < decipheredStrings.Length; i++)
{
string selection = offsetTextSelections[i];
double _;
Dictionary <char, double> selectionProportions = FrequencyAnalysis.CharFrequencyToCharProportion(FrequencyAnalysis.GetTextCharFrequency(selection));
Dictionary <char, char> optimalMapping = FrequencyAnalysis.GetOptimalCharacterMapping(selectionProportions,
EnglishLetterFrequency.GetLetterProportions(),
out _,
out shiftAmounts[i]);
decipheredStrings[i] = FrequencyAnalysis.DecipherTextByMapping(selection, optimalMapping);
}
string fullDeciphering = FrequencyAnalysis.ReconstructTextFromOffsetSelections(decipheredStrings);
Console.WriteLine("Keyword: " + ProgramMath.GetKeywordFromOffsets(shiftAmounts));
Console.WriteLine("Deciphered Text:");
Console.WriteLine(fullDeciphering);
}
else
{
string keyword;
string fullDeciphering = ManualMappingDeciphering.RunDeciphering(text,
keyLengthSelection,
out keyword);
Console.WriteLine("Keyword: " + keyword);
Console.WriteLine("Deciphered Text:");
Console.WriteLine(fullDeciphering);
}
}