recursive_message.cpp

#include <iostream>
#include <string>
using namespace std;

void recursive(string s, int count, int limit)
{
    if (count < limit)
    {
        for (int i = 0; i < count; i++)
        {
            cout << ' ';
        }
        cout << s[count];
        for (int i = count + 1; i < limit; i++)
        {
            cout << '|';
        }
        cout << endl;
        recursive(s, ++count, limit);
    }
}

int main()
{
    bool quit = false;

    string input = "Ah yes, recursion...";
    cout << input << endl;

    do {
        recursive(input, 0, input.length());
        cout << "Enter another message (or type 'Quit' to quit:" << endl;
        getline(cin, input);
        if (input == "Quit")
        {
            quit = true;
        }
    } while(!quit);

    system("pause");
    return 0;
}