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

35 lines
693 B
Rust

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