Convert temperatures between Fahrenheit and Celsius.

ls__001

pub mod temps {
    use std::io;

    pub fn calc_temp() -> () {
        println!("Please enter a temperature you widh to convert");
        println!("Expected format: 32C ==> to convert 32C to F");
        println!("Expected format: 68F ==> to convert 32F to C");

        let mut value_to_convert = String::new();

        io::stdin()
            .read_line(&mut value_to_convert)
            .expect("Please enter a valid value to convert");

        let value_to_convert = value_to_convert.trim();
        let (temp, current_unit) = value_to_convert.split_at(&value_to_convert.len() - 1);

        let val: u32 = temp.parse().expect("Please use this format 21C or 17F");

        let result: f64 = match current_unit.to_lowercase().as_str() {
            "c" => ((val * 9 / 5) + 32) as f64,
            "f" => ((val - 32) * 5 / 9) as f64,
            _ => val as f64,
        };
        println!("{}", result);
    }
}