serde-csv-extra

Csv-related serde addons

use serde::{Deserialize, Serialize};

#[derive(Deserialize, Serialize)]
struct Foo {
   #[serde(with = "serde_csv_extra::vec_num")]
   list: Vec<i32>,
   #[serde(with = "serde_csv_extra::vec_vec_num")]
   matrix: Vec<Vec<i32>>,
   #[serde(with = "serde_csv_extra::maybe_image_size")]
   image_size: Option<(u8, u16)>,
   #[serde(with = "serde_csv_extra::maybe_lat_lon")]
   geo: Option<(f32, f32)>,
}

let mut wtr = csv::WriterBuilder::new().has_headers(false).from_writer(Vec::new());
wtr.serialize(
    Foo {
        list: vec![-1, 1],
        matrix: vec![vec![-1, 1], vec![1, -1]],
        image_size: Some((16, 1024)),
        geo: Some((84.99, -135.00)),
    }
).unwrap();
wtr.serialize(
    Foo {
        list: vec![],
        matrix: vec![],
        image_size: None,
        geo: None,
    }
).unwrap();
let s = String::from_utf8(wtr.into_inner().unwrap()).unwrap();
assert_eq!(s, "-1_1,-1_1|1_-1,16x1024,84.99;-135\n,,,\n");

Contributing

We appreciate all kinds of contributions, thank you!

Note on README

The README.md file isn't meant to be changed directly. It instead generated from the crate's docs by the cargo-readme command:

• Install the command if you don't have it: cargo install cargo-readme
• Change the crate-level docs in src/lib.rs, or wrapping text in README.tpl
• Apply the changes: cargo readme > README.md

If you have rusty-hook installed the changes will apply automatically on commit.

License

This project is licensed under the MIT license.