#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
#include <process.h>
 
 
void clear(void);
void settext(void);
 
 
 
 
 
// BEGINNING OF PROGRAM
 
int main()                                  // starts the program
{
 
  char str[20];                             // declares char array 'str'
  int num = 0;                              // declares the integer 'num'
  int length = 0;                           // declares the integer 'length'
 
  clear();                                  // clears the screen
 
  printf("Enter a word: ");                 // instructs you to enter a word
 
  do                                        // starts loop for input
  {
 
    str[num] = getch();                     // puts a char into 'str'
 
    printf("%c", str[num]);                 // echoes char to screen
 
    if (str[num] >= 'A')                    // this whole 'IF' block
      {                                     // checks to see if the
        if (str[num] <= 'Z')                // entered character is
        {                                   // uppercase, and if so,
          str[num] = str[num] - 'A' + 'a';  // converts it to
        }                                   // lowercase
      }                                     //
 
    num++;                                  // increments 'num' by 1
 
  } while(str[num-1] != 0x0D);              // loops until ENTER is hit
 
  length = num - 1;                         // assigns the value of 'num'
                                            // minus 1 (the length of 'str')
                                            // to 'length'
 
  printf("\n\nYour word was %s \n\n", str); // outputs 'str' to screen
 
  printf("\nIt is %d characters long", length);
                                            // outputs 'str' and its
                                            // length to the screen
 
  settext();                                // holds output until
                                            // a key is pressed
 
  clear();                                  // clears the screen
 
  return 0;                                 // quits program with
                                            // condition zero
}
 
// END OF PROGRAM
 
 
 
 
 
// BEGINNING OF FUNCTIONS
 
void clear(void)
{
  system("cls");
}
 
///////////////////////////////////
 
void settext(void)
{
  char text;
  text = getch();
}

 char str[20]  = {0};

    if (str[num] == '\b')
      {
 
        str[num] = '\0';
        printf(" \b");
        str[num-1] = '\0';
        num = num - 1;
      }

if (str[num] == '\b')
{
    printf(" \b");
    str[--num] = '\0';    // sub 1 from num and set to \0
}

str[num] = str[num] - 'A' + 'a';  // converts it to lowercase