/* Pencil and Paper Exercise 3. 
*/
#include "tools.h"
void main( void )
{ 
    char message[] = "Murphy Brown had a baby and the President had a cow.";
    string p1, p2, p3; 

    p1 = strstr( message, "ow" );
    p2 = strstr( p1, "ow" );
    p3 = strstr( p1+1, "ow"  );  /* a.  Diagram array, p1, p2, and p3. */ 
    printf( "p1:%s\np2:%s\np3:%s \n\n", p1, p2, p3 );

    p1 = strchr( message, ' ' );
    p2 = strchr( p1, 'r' );
    p3 = strrchr(p1, 'r' );  /* b.  Diagram array, p1, p2, and p3. */ 
    printf( "p1:%s\np2:%s\np3:%s \n\n", p1, p2, p3 );

    p1 = strstr( message, " and" ) ;
    *p1 = '\0'; 
    p2 = strrchr( message, ' ' );  
    strcpy( p2, " zoo" );  /* c.  Diagram array, p1 and p2. */ 
    printf( "message:%s\n\n", message);
}