private static Dictionary <CustomString, int> CalculateStringsFrequencies(CustomString text, bool dependOnRegister, params char[] separators)
{
if (!dependOnRegister)
{
text = text.ReplaceByDelegate(c => char.ToLower(c));
}
Dictionary <CustomString, int> result = new Dictionary <CustomString, int>();
List <char> currentStringSymbols = new List <char>();
for (int i = 0; i < text.Length; i++)
{
if (separators.Contains(text[i]))
{
CustomString str = CustomString.CreateInstance(currentStringSymbols.ToArray());
currentStringSymbols.Clear();
AddStringToFrequencies(result, str);
continue;
}
currentStringSymbols.Add(text[i]);
}
AddStringToFrequencies(result, CustomString.CreateInstance(currentStringSymbols.ToArray()));
return(result);
}
private static void WriteCustomMethodsExamples()
{
Console.WriteLine("Examples of custom methods.");
CustomString str = CustomString.CreateInstance("HeLLo wOrld".ToCharArray());
Console.WriteLine($"{nameof(str)} = CreateInstance(\"{str}\")");
Console.WriteLine($"str.RemoveByPredicate(c => char.IsUpper(c)) => {str.RemoveByPredicate(c => char.IsUpper(c))}");
Console.WriteLine($"str.RemoveByPredicate(c => c == 'L') => {str.RemoveByPredicate(c => c == 'L')}");
Console.WriteLine($"str.ReplaceByDelegate(c => char.ToLower(c)) => {str.ReplaceByDelegate(c => char.ToLower(c))}");
Console.WriteLine($"str.ReplaceByDelegate(c => char.ToLower(c) == 'l' ? '1' : c)) => {str.ReplaceByDelegate(c => char.ToLower(c) == 'l' ? '1' : c)}");
WriteSeparatorStringsAndAwaitMessage();
}