15 Oct
2008
15 Oct
'08
3:30 p.m.
On Wed, Oct 15, 2008 at 2:22 PM, Andrew Coppin
So if "+" is not a valid token, but the user writes x = 1; y = 2; z = 3 + z; w = 4; then what my program receives back is "x = 1; y = 2; z = 3"
You said you expect one or more 'expression'. It looks as if your expression can optionally be terminated by semicolon? Can you demand semicolons at the ends of your expressions? Then, "z = 3" would not constitute a complete expression and an error would be raised.