enum_in_args/
enum_in_args.rs

1//! parsing argument value into enum. You can use crate `strum`'s `EnumString` for this purposes as well
2//!
3use std::str::FromStr;
4
5use bpaf::*;
6
7#[derive(Debug, Clone)]
8enum Baz {
9    Foo,
10    Bar,
11    FooBar,
12}
13
14impl FromStr for Baz {
15    type Err = String;
16    fn from_str(s: &str) -> Result<Self, String>
17    where
18        Self: Sized,
19    {
20        match s {
21            "foo" => Ok(Baz::Foo),
22            "bar" => Ok(Baz::Bar),
23            "foobar" => Ok(Baz::FooBar),
24            _ => Err("Expected foo|bar|foobar".to_string()),
25        }
26    }
27}
28fn main() {
29    let opt = long("baz")
30        .short('b')
31        .help("choose between foo, bar or foobar")
32        .argument::<Baz>("CMD")
33        .to_options()
34        .run();
35
36    println!("{:#?}", opt);
37}
enum_in_args/enum_in_args.rs

enum_in_args/
enum_in_args.rs
