Method is_set

option_parser/src/lib.rs:260–265

Returns `true` if the option was present in the parsed input. This works for both value-requiring and valueless options.

(&self, option: &str)

    ///
    /// This works for both value-requiring and valueless options.
    pub fn is_set(&self, option: &str) -> bool {
        self.options
            .get(option)
            .and_then(|v| v.value.as_ref())
            .is_some()
    }

    /// Retrieves and converts an option value to type `T`.
    ///