cron_schedule

区块链环境下的cron表达式解析器...

extern crate cron_schedule;
extern crate chrono;

use cron_schedule::Schedule;
use chrono::Utc;
use std::str::FromStr;

fn main() {
  //               sec  min   hour   day of month   month   day of week   year
  let expression = "0   30   9,12,15     1,15       May-Aug  Mon,Wed,Fri  2021/2";
  let schedule = Schedule::from_str(expression).unwrap();
  println!("Upcoming fire times:");
  for datetime in schedule.upcoming().take(10) {
    println!("-> {}", datetime);
  }
}

/*
Upcoming fire times:
-> 2021-06-01 09:30:00 UTC
-> 2021-06-01 12:30:00 UTC
-> 2021-06-01 15:30:00 UTC
-> 2021-06-15 09:30:00 UTC
-> 2021-06-15 12:30:00 UTC
-> 2021-06-15 15:30:00 UTC
-> 2021-08-01 09:30:00 UTC
-> 2021-08-01 12:30:00 UTC
-> 2021-08-01 15:30:00 UTC
-> 2021-08-15 09:30:00 UTC
*/

许可证

MIT许可证 (LICENSE 或 http://opensource.org/licenses/MIT)

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