trpl-zh-cn/listings/ch12-an-io-project/listing-12-06/src/main.rs

use std::env;
use std::fs;

// ANCHOR: here
fn main() {
    let args: Vec<String> = env::args().collect();

    let config = parse_config(&args);

    println!("Searching for {}", config.query);
    println!("In file {}", config.file_path);

    let contents = fs::read_to_string(config.file_path)
        .expect("Should have been able to read the file");

    // --snip--
    // ANCHOR_END: here

    println!("With text:\n{contents}");
    // ANCHOR: here
}

struct Config {
    query: String,
    file_path: String,
}

fn parse_config(args: &[String]) -> Config {
    let query = args[1].clone();
    let file_path = args[2].clone();

    Config { query, file_path }
}
// ANCHOR_END: here