Answer to Exercise 69

| ANSWER TO EXERCISE 69
| The general parsing routine needed is:
    [ FrenchNumber n;
        switch(NextWord())
        {   'un', 'une': n=1;
            'deux': n=2;
            'trois': n=3;
            'quatre': n=4;
            'cinq': n=5;
            default: return -1;
        }
        parsed_number = n; return 1;
    ];

Back to the exercise in section 27

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