csv.rs

extern crate csv;

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


struct data {
    pub time: Vec<String>,
    pub name: Vec<String>,
    pub score: Vec<String>,
}

fn example(filepath: &str, struct: struct_instance:) {
    let mut rdr = csv::Reader::from_reader(filepath);
    for result in rdr.records() {
        // The iterator yields Result<StringRecord, Error>
        let number_of_columns = result.len;
        for i in (0..number_of_columns) {
            struct_instance[i].push(result[i]);  // for each column iterate and insert values into the struct
        }
    }
}

fn main() {
    let filepath = "sample.csv";  // A csv containing the columns: time, name, score
    let mut csv_data = struct {time: Vec::new(), name: Vec::new(), score: Vec::new()};
    example(filepath, csv_data);  //mutates csv_data
}