third_party/rust-csv/examples/tutorial-write-01.rs

extern crate csv;

use std::error::Error;
use std::io;
use std::process;

fn run() -> Result<(), Box<Error>> {
    let mut wtr = csv::Writer::from_writer(io::stdout());
    // Since we're writing records manually, we must explicitly write our
    // header record. A header record is written the same way that other
    // records are written.
    wtr.write_record(&["City", "State", "Population", "Latitude", "Longitude"])?;
    wtr.write_record(&["Davidsons Landing", "AK", "", "65.2419444", "-165.2716667"])?;
    wtr.write_record(&["Kenai", "AK", "7610", "60.5544444", "-151.2583333"])?;
    wtr.write_record(&["Oakman", "AL", "", "33.7133333", "-87.3886111"])?;

    // A CSV writer maintains an internal buffer, so it's important
    // to flush the buffer when you're done.
    wtr.flush()?;
    Ok(())
}

fn main() {
    if let Err(err) = run() {
        println!("{}", err);
        process::exit(1);
    }
}