extern crate text_diff;
extern crate getopts;
use std::env;
use getopts::Options;
fn main() {
let args: Vec<String> = env::args().collect();
let program = args[0].clone();
let mut opts = Options::new();
opts.optopt("s", "split", "", "char|word|line");
let matches = match opts.parse(&args[1..]) {
Ok(m) => { m }
Err(f) => { panic!(f.to_string()) }
};
let split = match matches.opt_str("s") {
Some(ref x) if x == "char" => "",
Some(ref x) if x == "word" => " ",
Some(ref x) if x == "line" => "\n",
_ => " "
};
if matches.free.len() > 1 {
text_diff::print_diff(&matches.free[0], &matches.free[1], split);
} else {
print!("{}", opts.usage(&format!("Usage: {} [options]", program)));
return;
};
}