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use std::fmt;
use std::str::FromStr;
use std::num::ParseIntError;
use nom::rest_s;
#[derive(PartialEq, Eq, Hash)]
pub struct Address {
address_type: AddressType,
main_group: u8,
mid_group: u8,
address: u8,
}
#[derive(PartialEq, Eq, Hash)]
pub enum AddressType {
Individual,
Group,
}
impl Address {
pub fn new(address_type: AddressType, main_group: u8, mid_group: u8, address: u8) -> Address {
Address {
address_type: address_type,
main_group: main_group,
mid_group: mid_group,
address: address,
}
}
pub fn main(&self) -> u8 {
self.main_group
}
pub fn middle(&self) -> (u8, u8) {
(self.main_group, self.mid_group)
}
}
impl FromStr for Address {
type Err = ParseIntError;
fn from_str(s: &str) -> Result<Self, Self::Err> {
let ret = parse(s).unwrap();
let (main, middle, address) = ret.1;
println!("############# {} {} {}", main, middle, address);
Ok(Address::new(
AddressType::Group,
u8::from_str(main).unwrap(),
u8::from_str(middle).unwrap(),
u8::from_str(address).unwrap(),
))
}
}
named!(parse<&str, (&str, &str, &str)>,
do_parse!(
main: take_until_and_consume!("/") >>
middle: take_until_and_consume!("/") >>
address: rest_s >>
((&main, &middle, &address))
)
);
impl fmt::Display for Address {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self.address_type {
AddressType::Group => {
write!(f, "{}/{}/{}", self.main_group, self.mid_group, self.address)
}
AddressType::Individual => {
write!(f, "{}.{}.{}", self.main_group, self.mid_group, self.address)
}
}
}
}
impl fmt::Debug for Address {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{{ {} }}", self)
}
}
#[cfg(test)]
mod tests {
use crate::address::Address;
use crate::address::AddressType;
use std::str::FromStr;
#[test]
fn t_knx_address() {
assert_eq!(
Address::from_str("1/2/3").unwrap(),
Address::new(AddressType::Group, 1, 2, 3)
);
assert_eq!(
Address::from_str("15/15/255").unwrap(),
Address::new(AddressType::Group, 15, 15, 255)
);
}
}