difference-rs 3.2.0

A Rust text diffing and assertion library.
Documentation 
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#![deny(warnings)]
#![cfg(not(tarpaulin_include))]
#![expect(missing_docs)]

#[cfg(feature = "bin")]
use getopts::Options;
#[cfg(feature = "bin")]
use std::env;

#[cfg(not(feature = "bin"))]
fn main() {
    panic!("Needs to be compiled with --features=bin");
}

#[cfg(feature = "bin")]
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 {
        let ch = difference_rs::Changeset::new(&matches.free[0], &matches.free[1], split);
        println!("{ch}");
    } else {
        print!("{}", opts.usage(&format!("Usage: {program} [options]")));
    }
}