/* --------------------------------------------------------------------- **
  Self Test Exercise 6. A hidden message. 
** --------------------------------------------------------------------- */

#include "tools.h"

void main( void )
{ 
    char message[] = "Yes, I would truly love to see you on Friday.";
    string p1, p2, p3, p4, p5;  

    p1 = strstr( message, "to" );   *p1 = 'd';
    p2 = strchr( p1, 'y' ); 
    p3 = strchr( p2, ' ' );         *p3 = p1[2] = '\0'; 

    p3 = strrchr( message, 'l' );   *(p1-1) = *(p3-1) = '\0';
    p4 = strchr( message, ' ' );    *p4 = '\0';  p4 ++;
    p5 = strchr( p4, 't' );

    printf( "%c %s %s\n", *p4, p3, p2 );
    printf( "%s %c %s\n", message, *p4, p1 );

    strcpy( message, "Drew" );  
    printf( "%c %s %s %s %s!\n", *p4, p3, p2, p5, message );    
}