expand_str

ExpandEnvironmentStrings emulation with more strict input checking and a way to substitute your own variable values.

Example

Add expand_str to your dependencies of your Cargo.toml: toml [dependencies] expand_str = "0.1"

And then, in your rust file: ```rust

fn main() { println!("{}", expandstr::expandstringwithenv("This is what's in your PATH: %PATH%").unwrap()); } ```

If you only want string formatting, environment variable access code can be dropped, e.g.: toml [dependencies.expand_str] version = "0.1" default-features = false (Exact feature name is env, but there are no other features at the moment).

Formatting-only example: ```rust fn main() { let values = { let mut values = HashMap::new(); values.insert("DRINK", "cup of tea"); values.insert("FOOD", "cookies"); values };

let src = "Here is a %DRINK% and some %FOOD%.";
let x = expand_string_with_values(src, |id| values.get(id)).unwrap();
println!("{}", x);

} ```