Calculate times with chrono “plain text like” in Rust.
Kairos (καιρός) is an Ancient Greek word meaning the right, critical or opportune moment.
This library offers an abstraction over the awesome
chrono crate to
calculate dates almost like one would write plain text:
use kairos::timetype::TimeType as TT; // get the end of the month of the day 5 days ago let _ = (TT::today() - TT::weeks(1) + TT::days(2)).end_of_month(); // alternative to above let _ = (TT::today() - TT::days(5)).end_of_month(); // NOTE: The following features are not yet included // get a vector of dates for the next 4 weeks, starting today let _ = TT::today() .every(TT::week(1)) .take(4); // get an iterator of dates for the next year, in a weekly fashion, starting // today but skipping october let _ = TT::today() .every(TT::week(1)) .skip(Month::October) .until(Mark::END_OF_YEAR); // and finally, a complex one let _ = (TT::today() - TT::years(1)) // exactly one year ago .every(Day::Monday) // and then every Monday .skip(Month::October) // but not in october .skip(|date| date.is(Mark::MONTH_START)) // and not if the day is the 1st of a month .until(Mark::Moment(today())); // until today
kairos ships a user input parser, so you can include kairos in your commandline applications.