// WHAT THE MAINTAINER IS THINKING: The boss wants me to do this
// trivial maintenance activity on Names_1_C++.cpp: Modify the program so
// that it also prints out the names in reverse order.  This should be
// easy.  Let's make life even simpler and use this off-the-shelf
// Stack component that is lying around from our last project.
// [Unfortunately, the component also has been poorly designed, like
// most C++ classes.]  After outputting each name, let's add it to a
// stack.  Then we can output the values as they are popped from it.
// [Try it!  Actually you can't, because it won't compile.  First,
// figure out why it might not compile; then figure out what would
// happen if it did compile OK and actually ran; then move on to the
// next version.]

#include <iostream.h>
#include <ctype.h>

#include "Stack.h"

class Stack_Of_Names :
    public Stack <char*>
{};

main ()
{
    char one_name[30];
    Stack_Of_Names all_names;

    // Read people's first names (assuming one word per line) from
    // stdin, until end of file, outputting both the original and an
    // uncapitalized version and putting them in a stack to be
    // reversed

    while (! cin.eof ())
    {
	cin >> one_name;
	if (strlen (one_name) > 0)
	{
	    cout << one_name << '\n';
	    all_names.Push (one_name);
	    one_name[0] = tolower (one_name[0]);
	    cout << one_name << '\n';
	    all_names.Push (one_name);
	}
    }

    // Output all the names again, from the stack, in reverse order

    cout << "Names in reverse order:\n";
    while (all_names.Length () > 0)
    {
	all_names.Pop (one_name);
	cout << one_name << '\n';
    }
}