extern crate xml;

use std::io;
use std::io::BufRead;
use std::io::BufReader;
use std::fs::File;

fn main() {
    println!("Hello, world!");
    let stdin = io::stdin();

    let b = false;

    // let mut handle :Box<io::BufRead>;
    // if b {
    //     handle = Box::new(stdin.lock());
    // } else {
    //     let file = File::open("in.txt").unwrap();
    //     handle = Box::new(BufReader::new(file));
    // };

    let mut stdioHandle;
    let mut fileHandle;

    let handle :&mut io::BufRead;
    if b {
        stdioHandle = stdin.lock();
        handle = &mut stdioHandle;
    } else {
        let file = File::open("in.txt").unwrap();
        fileHandle = BufReader::new(file);
        handle = &mut fileHandle;
    };

    let mut line = String::new();
    handle.read_line(&mut line).unwrap();
    println!("line: '{}'", line);
}