toml.zh.md

反序列化，toml 配置文件

[![toml-badge]][toml] [![cat-encoding-badge]][cat-encoding]

把一些 toml 解析成，一个通用的toml::Value类型，它能够表示任何有效的 TOML 数据。

extern crate toml;

use toml::{Value, de::Error};

fn main() -> Result<(), Error> {
    let toml_content = r#"
          [package]
          name = "your_package"
          version = "0.1.0"
          authors = ["You! <[email protected]>"]

          [dependencies]
          serde = "1.0"
          "#;

    let package_info: Value = toml::from_str(toml_content)?;

    assert_eq!(package_info["dependencies"]["serde"].as_str(), Some("1.0"));
    assert_eq!(package_info["package"]["name"].as_str(),
               Some("your_package"));

    Ok(())
}

使用[serde]，将 toml 解析为您自己的结构。

# #[macro_use]
# extern crate error_chain;
#[macro_use]
extern crate serde_derive;
extern crate toml;

use std::collections::HashMap;

#[derive(Deserialize)]
struct Config {
    package: Package,
    dependencies: HashMap<String, String>,
}

#[derive(Deserialize)]
struct Package {
    name: String,
    version: String,
    authors: Vec<String>,
}
#
# error_chain! {
#     foreign_links {
#         Toml(toml::de::Error);
#     }
# }

fn run() -> Result<()> {
    let toml_content = r#"
          [package]
          name = "your_package"
          version = "0.1.0"
          authors = ["You! <[email protected]>"]

          [dependencies]
          serde = "1.0"
          "#;

    let package_info: Config = toml::from_str(toml_content)?;

    assert_eq!(package_info.package.name, "your_package");
    assert_eq!(package_info.package.version, "0.1.0");
    assert_eq!(package_info.package.authors, vec!["You! <[email protected]>"]);
    assert_eq!(package_info.dependencies["serde"], "1.0");

    Ok(())
}
#
# quick_main!(run);