48 lines
1.0 KiB
Rust
48 lines
1.0 KiB
Rust
|
|
|
|
/* -*- mode::rust;indent-tabs-mode::nil -*-
|
|
* Implementation of 99 Bottles of Beer
|
|
* http://99-bottles-of-beer.net/
|
|
*/
|
|
use std;
|
|
import std::int;
|
|
import std::str;
|
|
|
|
fn b1() -> str { ret "# of beer on the wall, # of beer."; }
|
|
|
|
fn b2() -> str {
|
|
ret "Take one down and pass it around, # of beer on the wall.";
|
|
}
|
|
|
|
fn b7() -> str {
|
|
ret "No more bottles of beer on the wall, no more bottles of beer.";
|
|
}
|
|
|
|
fn b8() -> str {
|
|
ret "Go to the store and buy some more, # of beer on the wall.";
|
|
}
|
|
|
|
fn sub(t: str, n: int) -> str {
|
|
let b: str = "";
|
|
let i: uint = 0u;
|
|
let ns: str;
|
|
alt n {
|
|
0 { ns = "no more bottles"; }
|
|
1 { ns = "1 bottle"; }
|
|
_ { ns = int::to_str(n, 10u) + " bottles"; }
|
|
}
|
|
while i < str::byte_len(t) {
|
|
if t.(i) == '#' as u8 { b += ns; } else { str::push_byte(b, t.(i)); }
|
|
i += 1u;
|
|
}
|
|
ret b;
|
|
}
|
|
|
|
|
|
/* Straightforward counter */
|
|
fn main() {
|
|
let n: int = 99;
|
|
while n > 0 { log sub(b1(), n); log sub(b2(), n - 1); log ""; n -= 1; }
|
|
log b7();
|
|
log sub(b8(), 99);
|
|
} |