Type Definition inquire::parser::BoolParser

pub type BoolParser<'a> = &'a dyn Fn(&str) -> Result<bool, ()>;

Type alias for parsers used in Confirm prompts.

BoolParsers receive the user input to a given prompt and return either a successful result (Ok) containing the parsed bool or an empty Err if a value could not be parsed.

Examples

use inquire::parser::BoolParser;

let parser: BoolParser = &|ans| match ans {
    "si" => Ok(true),
    "no" => Ok(false),
    _ => Err(()),
};
assert_eq!(Ok(true), parser("si"));
assert_eq!(Ok(false), parser("no"));
assert_eq!(Err(()), parser("yes"));
assert_eq!(Err(()), parser("não"));