static void Main(string[] args)
{
ConsoleKeyInfo cki;
do
{
Console.Clear();
Console.WriteLine("Input string");
string s = Console.ReadLine();
Str s1;
if (s==null) s1=new Str(); else s1 = new Str(s);
var s2 = new Str(s1);
Console.Clear();
Console.WriteLine("String: " + s2);
Console.WriteLine("Length string: " + s2.Length);
s1.DeleteSpace();
Console.WriteLine("Same without extraspaces: " + s1);
Console.WriteLine("New length: " + s1.Length);
Console.WriteLine("Input position and symbol, which will add");
char x;
int z;
string[] tokens = Console.ReadLine().Split();
if (!(int.TryParse(tokens[0], out z)))
{
Console.WriteLine("Error. Incorrect value");
return;
}
else if (!(char.TryParse(tokens[1], out x)))
{
Console.WriteLine("Error. Incorrect value");
return;
}
s1.Add(z, x);
Console.WriteLine("String with extra symbol: " + s1);
Console.WriteLine("New length: " + s1.Length);
Console.WriteLine("Input number symbol, which will delete");
tokens = Console.ReadLine().Split();
int y;
if (!(int.TryParse(tokens[0], out y)))
{
Console.WriteLine("Error. Incorrect value");
return;
}
s1.Delete(y);
Console.WriteLine("String without extra symbol: " + s1);
Console.WriteLine("New length: " + s1.Length);
cki = Console.ReadKey();
}
while (cki.Key != ConsoleKey.Escape);
}
public Str(Str s)
{
value = new char[s.Length];
for (int i = 0; i < s.Length; ++i)
{
value[i] = s.value[i];
}
}
public static Str DeleteSpace(Str s)
{
while (s[0] == ' ')
{
s = s.Delete(0);
}
while (s[s.Length - 1] == ' ')
{
s = s.Delete(s.Length - 1);
}
for (int i = 0; i < s.Length - 1; i++)
{
if (s[i] == ' ' && s[i + 1] == ' ')
{
while (s[i + 1] == ' ')
{
s = s.Delete(i+1);
}
}
}
return s;
}