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/* -*- mode::rust;indent-tabs-mode::nil -*-
* Implementation of 99 Bottles of Beer
* http://99-bottles-of-beer.net/
*/
use std;
import int;
import str;
fn main() {
fn multiple(n: int) {
#debug("%d bottles of beer on the wall, %d bottles of beer,", n, n);
#debug("Take one down and pass it around, %d \
bottles of beer on the wall.", n-1);
#debug("");
if n > 3 { be multiple(n - 1); } else { be dual(); }
}
fn dual() {
#debug("2 bottles of beer on the wall, 2 bottles of beer,");
#debug("Take one down and pass it around, \
1 bottle of beer on the wall.");
#debug("");
be single();
}
fn single() {
#debug("1 bottle of beer on the wall, 1 bottle of beer,");
#debug("Take one down and pass it around, \
no more bottles of beer on the wall.");
#debug("");
be none();
}
fn none() {
#debug("No more bottles of beer on the wall, \
no more bottles of beer,");
#debug("Go to the store and buy some more, \
99 bottles of beer on the wall.");
#debug("");
}
multiple(99);
}
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