Cote

A simple option manager manage the AOpt, support auto generate help message.

Example

```ignore use cote::prelude::; use aopt::prelude::; use aopt::Error;

fn main() -> Result<(), Error> { let mut cote = Cote::::default();

cote.add_meta::<String>(
    serde_json::from_str(
        r#"
{
    "option": "-s=s",
    "hint": "-s <str>",
    "help": "This is a help for option [-s]",
    "value": [
      "cote manager"
    ]
}
"#,
    )
    .unwrap(),
)?;
cote.add_opt("--from=i")?
    .add_alias("-f")
    .set_help("The sub string start index");
cote.add_opt("--to=i")?
    .add_alias("-t")
    .set_help("The sub string end index");
cote.run(
    ["-f", "5", "-t", "9"].into_iter(),
    |ret, cote: &Cote<AFwdPolicy>| {
        if ret.is_some() {
            let start: i64 = *cote.find_val("--from")?;
            let end: i64 = *cote.find_val("--to")?;

            println!(
                "cote running okay: {:?}",
                cote.find_val::<String>("-s")?
                    .get(start as usize..end as usize)
            );
        }
        Ok(())
    },
)?;

Ok(())

} ```

LICENSE

MPL-2.0