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#![allow(dead_code)]
use std::{error::Error, io, process};
// This lets us write `#[derive(Deserialize)]`.
use serde::Deserialize;
// We don't need to derive `Debug` (which doesn't require Serde), but it's a
// good habit to do it for all your types.
//
// Notice that the field names in this struct are NOT in the same order as
// the fields in the CSV data!
#[derive(Debug, Deserialize)]
#[serde(rename_all = "PascalCase")]
struct Record {
latitude: f64,
longitude: f64,
population: Option<u64>,
city: String,
state: String,
}
fn run() -> Result<(), Box<dyn Error>> {
let mut rdr = csv::Reader::from_reader(io::stdin());
for result in rdr.deserialize() {
let record: Record = result?;
println!("{:?}", record);
// Try this if you don't like each record smushed on one line:
// println!("{:#?}", record);
}
Ok(())
}
fn main() {
if let Err(err) = run() {
println!("{}", err);
process::exit(1);
}
}
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