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pub mod disp {
    use std::fmt;

    pub fn print<T>(text: T) where T: fmt::Display {
        println!("{}", text);
        return;
    }

    pub fn newline() {
        println!("");
        return;
    }

    pub fn print_debug<T>(data: T) where T: fmt::Debug {
        println!("{:?}", data);
        return;
    }
}

pub mod range {
    pub fn range(x: u32, y: u32) -> Vec<u32> {
        let mut iterator = x;
        let mut list = Vec::new();
        list.push(iterator);
        while iterator != y {
            iterator += 1;
            list.push(iterator);
        }
        return list;
    }
}

pub mod arg {
    use std::env;

    pub fn get_args() -> Vec<String> {
        let args = env::args().collect();
        return args;
    }
}

pub mod conv {
    use std::string::String;

    pub fn b_str(str: &str) -> String {
        let no_borrow: String = str.to_string();
        return no_borrow;
    }
}

pub mod stringutil {
    pub fn get_char_pos(string: String, char_loc: usize) -> char {
        let char_vec: Vec<char> = string.chars().collect();
        return char_vec[char_loc];
    }
}

pub mod appinfo {
    pub struct AppInfo {
        pub name: &'static str,
        pub author: &'static str,
        pub repository: &'static str,
        pub crate_link: &'static str,
    }

    impl AppInfo {
        pub fn new() -> AppInfo {
            let appinfo: AppInfo = AppInfo {name: "", author: "", repository: "", crate_link: ""};
            return appinfo;
        }
    }
}

pub mod point {
    pub struct Point {
        pub x: i32,
        pub y: i32,
    }

    impl Point {
        pub fn new() -> Point {
            let point: Point = Point {x: 0, y: 0};
            return point;
        }
    }
}

pub mod coordinate {
    pub struct Coordinate {
        pub x: i32,
        pub y: i32,
        pub z: i32,
    }

    impl Coordinate {
        pub fn new() -> Coordinate {
            let coordinate: Coordinate = Coordinate {x: 0, y: 0, z: 0};
            return coordinate;
        }
    }
}

#[cfg(test)]
mod tests {
    use ::range;

    #[test]
    fn range() {
        let testvec = range::range(0, 4);
        println!("{:?}", testvec);
    }
}