sample_grrs/
lib.rs

1use std::io::{self, BufReader, Write};
2use std::fs::File;
3use std::io::prelude::*;
4
5pub fn read_lines(filename: std::path::PathBuf) -> io::Result<io::Lines<BufReader<File>>> {
6    let file = File::open(filename).expect("No file found");
7    Ok(io::BufReader::new(file).lines())
8}
9
10pub fn find_matches(content: io::Lines<BufReader<File>>, pattern: String, mut writer: impl Write) {
11    for line in content {
12        if let Ok(line) = line {
13            if line.contains(&pattern) {
14                writeln!(writer, "{}", line).expect("Writer failed");
15            }
16        }
17    }
18}
sample_grrs/lib.rs

sample_grrs/
lib.rs
