#define _CRT_SECURE_NO_WARNINGS
#include "stdafx.h"
#include "stdafx.h"
#include <math.h>
#include <iostream>
#include <windows.h>
#include <fstream>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <cstdlib>
#include <ctime>
#include <crtdbg.h>
#include <conio.h>
#include <string.h>
#define _CRTBG_MAP_ALLOC
#pragma warning(disable : 4996)
using namespace std;

int printMenu(int n);
int delStr(char *&str);
int getStr(char *&str);
void processStr(char *&str);




int main()
{

	setlocale(LC_ALL, "Russian");
	setlocale(LC_ALL, "rus");

	int menu = 0;
	int check1 = 0;
	int check2 = 0;
	char *str = new char[1];
	str[0] = '\0';
	do
	{

		menu = printMenu(1);
		switch (menu)
		{
		case 1:
		{
			check2 = delStr(str);
			check1 = getStr(str);

			break;
		}
		case 2:
		{
			if (check1 == 1)
			{
				cout << str << endl;

			}

			break;
		}
		case 3:
		{   if (check1 == 1)
		{
			processStr(str);
		}
		break;
		}
		case 0:
		{
			menu = 0;
			break;
		}
		default:
		{
			cout << "неверный пункт меню!!\a" << endl;
			break;
		}

		}


	} while (menu != 0);




	_CrtDumpMemoryLeaks();
	return 0;

}
int printMenu(int n)
{
	if (n == 1)
	{
		cout << " +----------------------------------+ \n";
		cout << " | Выберите команду:                | \n";
		cout << " |----------------------------------| \n";
		cout << " | 1-ввести строку                  | \n";
		cout << " |----------------------------------| \n";
		cout << " | 2-вывести строку                 | \n";
		cout << " |----------------------------------| \n";
		cout << " | 3-обработать строку              | \n";
		cout << " |----------------------------------| \n";
		cout << " | 0-выход:                         | \n";
		cout << " +----------------------------------+ \n";
	}
	int menuMain = 0;
	cin >> menuMain;
	return menuMain;
}
int delStr(char *&str)
{
	if ((strlen(str)>0) && (str != NULL))
	{
		delete[] str;
	}
	str = new char[1];
	str[0] = '\0';
	return 0;
}
int getStr(char *&str)
{
	char ch = 0;
	char *tmp = NULL;
	while (true)
	{
		int len = 0;
		ch = getch();
		printf("%c", ch);
		if (ch == 13)
		{
			break;
		}
		len = strlen(str);
		tmp = new char[len + 2];
		strcpy(tmp, str);
		tmp[len] = ch;
		tmp[len + 1] = '\0';

		delete[] str;
		str = tmp;
	}
	return 1;


}
void processStr(char *&str)
{
	int count = 0;
	int posmin = 0;
	int countmin = strlen(str);
	for (int i = 0; i < strlen(str);)
	{
		while (str[i] && !isalpha(str[i])) ++i;
		if (str[i] == 0) break;
		int pos = i;
		while (str[i] && isalpha(str[i])) ++i;
		count = i - pos;
		if (count < countmin)
		{
			countmin = count;
			posmin = pos;
		}
	}

	for (int i = posmin; i < posmin + countmin; ++i)
		putchar(str[i]);
	putchar('\n');
	printf("Len = %d, pos = %d\n", countmin, posmin);
}