rust-sandbox-read-csv

rust-sandbox-read-csv.rs

use std::env;
use std::fs::File;
use std::io::prelude::*;

#[derive(Debug)]
struct Organization<'a> {
    id: &'a str,
    name: &'a str,
}
fn main() {
    let args: Vec<String> = env::args().collect();
    let filename = &args[1];

    // 現在の団体シートから読み込む
    let mut f = File::open(filename).expect("file not found.");
    let mut contents = String::new();
    f.read_to_string(&mut contents).expect("read error.");

    let mut _organizations: Vec<Organization> = Vec::new();
    for line in contents.split("\n") {
        let cols: Vec<&str> = line.split(",").collect();
        if cols.len() < 5 {
            continue;
        }
        if cols[2] == "" {
            continue;
        }
        _organizations.push(Organization{ id: cols[0], name: cols[2]});
    }
    println!("line: {:?}", _organizations);
}