timewarp

NLP library for parsing English and German natural language into dates and times. Leverages pest for parsing human readable-dates and times. Tries to be as lenient as possible.

Examples:

Direct Input

To input a 2022-12-01 you can type: 12/1/22, 01.12.22, 22-12-01.

Week

2022-W52, 2022W52, week 22-52 or KW 22/52 are interpreted as an intervall 2022-12-26 <= x < 2023-01-02.

Relative Dates

yesterday, tomorrow, etc. are calculated based of a given base. +4 weeks, -5 months, next friday, last thu ...

lib.rs:

timewarp

NLP library for parsing English and German natural language into dates and times. Leverages pest for parsing human readable-dates and times.

Should parse

use timewarp::Direction::*;
use timewarp::{date_matcher, Doy, Tempus};

// Fri 2023-03-17
let today = Doy::from_ymd(2023, 3, 17);
// Date as used in German (d.m.y)
assert_eq!(
    date_matcher(today, From, "22.1.23").unwrap(),
    Tempus::Moment(Doy::from_ymd(2023, 1, 22))
);
assert_eq!(
    date_matcher(today, From, "22.1.").unwrap(),
    Tempus::Moment(Doy::from_ymd(2023, 1, 22))
);
// Date as common for english-speaker m/d/y
assert_eq!(
    date_matcher(today, From, "3/16/2023").unwrap(),
    Tempus::Moment(Doy::from_ymd(2023, 3, 16))
);
// Date written in ISO
assert_eq!(
    date_matcher(today, From, "2023-03-16").unwrap(),
    Tempus::Moment(Doy::from_ymd(2023, 3, 16))
);

assert_eq!(
    date_matcher(today, To, "last monday").unwrap(),
    Tempus::Moment(Doy::from_ymd(2023, 3, 13))
);
assert_eq!(
    date_matcher(today, From, "tuesday").unwrap(),
    Tempus::Moment(Doy::from_ymd(2023, 3, 14))
);
assert_eq!(
    date_matcher(today, To, "tuesday").unwrap(),
    Tempus::Moment(Doy::from_ymd(2023, 3, 21))
);
assert_eq!(
    date_matcher(today, From, "letzten donnerstag").unwrap(),
    Tempus::Moment(Doy::from_ymd(2023, 3, 16))
);
assert_eq!(
    date_matcher(today, To, "last friday").unwrap(),
    Tempus::Moment(Doy::from_ymd(2023, 3, 10))
);
assert_eq!(
    date_matcher(today, To, "nächsten Fr").unwrap(),
    Tempus::Moment(Doy::from_ymd(2023, 3, 24))
);
assert_eq!(
    date_matcher(today, To, "coming Thu").unwrap(),
    Tempus::Moment(Doy::from_ymd(2023, 3, 23))
);
assert_eq!(
    date_matcher(today, To, "übernächsten Donnerstag").unwrap(),
    Tempus::Moment(Doy::from_ymd(2023, 3, 30))
);
assert_eq!(
    date_matcher(today, To, "nächster Mo").unwrap(),
    Tempus::Moment(Doy::from_ymd(2023, 3, 20))
);
assert_eq!(
    date_matcher(today, To, "vorletzter mo").unwrap(),
    Tempus::Moment(Doy::from_ymd(2023, 3, 6))
);