Zemen - የ ኢትዮጵያ ቀን መቁጠሪያ

Introduction

A date conversion crate to convert between ethiopian and gregorian dates. We have a custom struct to represent ethiopian date, i.e. Zemen, and we are using an external crate time, and specifically time::Date, to represent gregorian dates.

The crate uses the Beyene-Kudlek algorithm to convert between jdn (Julian Day number) and ethiopic calender. And the time crate to convert between jdn (Julian Day number) and gregorian date.

Installation

cargo add zemen

Usage

use time::{Date, Month};
use zemen::{Zemen, Werh, error};

fn main() -> Result<(), error::Error> {
    // creating dates
    // Werh means month in Ge'ez
    let qen = Zemen::from_eth_cal(1992, Werh::Tahasass, 22)?;
    let date = Date::from_calendar_date(2000, Month::January, 1)?;

    // conversion
    let converted_day = Date::from(&qen);
    let converted_qen = Zemen::from(&date);

    println!("date: {}", converted_day);
    println!("qen: {}", converted_qen);

    // accessing individual element
    println!("year: {}", qen.year());
    println!("month: {}", qen.month());
    println!("month(number): {}", qen.month() as u8);
    println!("day: {}", qen.day());

    Ok(())
}

TODO

• Formatting
• Weekdays support
• Using an external crate to manage errors