Answer to Exercise 47

| ANSWER TO EXERCISE 47
| Put the following definition between inclusion of "Parser'' and "Verblib'':
    Object LibraryMessages
      with before
           [;  Prompt: if (turns==1)
                       print "What should you, the detective, do now?^>";
                   else
                       print "What next?^>";
                   rtrue;
           ];

Back to the exercise in section 21

Mechanically translated to HTML from third edition as revised 16 May 1997. Copyright © Graham Nelson 1993, 1994, 1995, 1996, 1997: all rights reserved.