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use std::{error::Error, io, process};
fn run() -> Result<(), Box<dyn Error>> {
let mut rdr = csv::Reader::from_reader(io::stdin());
{
// We nest this call in its own scope because of lifetimes.
let headers = rdr.headers()?;
println!("{:?}", headers);
}
for result in rdr.records() {
let record = result?;
println!("{:?}", record);
}
// We can ask for the headers at any time. There's no need to nest this
// call in its own scope because we never try to borrow the reader again.
let headers = rdr.headers()?;
println!("{:?}", headers);
Ok(())
}
fn main() {
if let Err(err) = run() {
println!("{}", err);
process::exit(1);
}
}
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