coreutils/yes/yes.rs
2014-07-06 12:34:50 +02:00

65 lines
1.5 KiB
Rust

#![crate_name = "yes"]
/*
* This file is part of the uutils coreutils package.
*
* (c) Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/* last synced with: yes (GNU coreutils) 8.13 */
#![feature(macro_rules)]
extern crate getopts;
extern crate libc;
use std::io::{print, println};
#[path = "../common/util.rs"]
mod util;
static NAME: &'static str = "yes";
pub fn uumain(args: Vec<String>) -> int {
let program = args.get(0).clone();
let opts = [
getopts::optflag("h", "help", "display this help and exit"),
getopts::optflag("V", "version", "output version information and exit"),
];
let matches = match getopts::getopts(args.tail(), opts) {
Ok(m) => m,
Err(f) => {
crash!(1, "invalid options\n{}", f)
}
};
if matches.opt_present("help") {
println!("yes 1.0.0");
println!("");
println!("Usage:");
println!(" {0:s} [STRING]... [OPTION]...", program);
println!("");
print(getopts::usage("Repeatedly output a line with all specified STRING(s), or 'y'.", opts).as_slice());
return 0;
}
if matches.opt_present("version") {
println!("yes 1.0.0");
return 0;
}
let mut string = "y".to_string();
if !matches.free.is_empty() {
string = matches.free.connect(" ");
}
exec(string.as_slice());
0
}
pub fn exec(string: &str) {
loop {
println(string);
}
}