open

jabba_lib::jfs

Function open 

Source 
pub fn open(fname: &str) -> Result<BufReader<File>>
Expand description

Opens a file for reading.

With this, you can read a file line by line.

It is similar to Python’s f = open("text.txt").

§Examples

use std::io::BufRead;

let f = jabba_lib::jfs::open("Cargo.toml").unwrap();
for line in f.lines() {
    let line = line.unwrap();
    println!("{}", line);
}

In Python, it would look like this:

f = open("Cargo.toml")
for line in f:
    line = line.rstrip("\n")
    print(line)
Examples found in repository?
examples/fs_short.rs (line 5)
4fn main() {
5    let f = jfs::open("Cargo.toml").unwrap();
6    for line in f.lines() {
7        let line = line.unwrap();
8        println!("{}", line);
9    }
10}
More examples
Hide additional examples
examples/fs.rs (line 11)
4fn main() {
5    let lines = jfs::readlines("Cargo.toml").unwrap();
6    println!("Number of lines in Cargo.toml: {}", lines.len());
7    println!("---");
8    let content = jfs::read("Cargo.toml").unwrap();
9    println!("Number of characters in Cargo.toml: {}", content.len());
10    println!("---");
11    let f = jfs::open("Cargo.toml").unwrap();
12    for line in f.lines() {
13        let line = line.unwrap();
14        println!("{}", line);
15    }
16}