chrono-node
Version:
A natural language date parser in Javascript
63 lines • 2.92 kB
JavaScript
import { AbstractParserWithWordBoundaryChecking } from "../../../common/parsers/AbstractParserWithWordBoundary.js";
import { assignSimilarDate, implySimilarTime } from "../../../utils/dates.js";
import FICasualTimeParser from "./FICasualTimeParser.js";
import * as references from "../../../common/casualReferences.js";
import { addDuration } from "../../../calculation/duration.js";
const PATTERN = new RegExp(`(nyt|tänään|huomenna|ylihuomenna|eilen|toissapäivänä|viime\\s*yönä)` +
`(?:\\s*(aamulla|aamuna|aamupäivällä|päivällä|iltapäivällä|illalla|yöllä|keskiyöllä))?` +
`(?=\\W|$)`, "i");
const DATE_GROUP = 1;
const TIME_GROUP = 2;
export default class FICasualDateParser extends AbstractParserWithWordBoundaryChecking {
innerPattern(context) {
return PATTERN;
}
innerExtract(context, match) {
let targetDate = context.reference.getDateWithAdjustedTimezone();
const dateKeyword = (match[DATE_GROUP] || "").toLowerCase();
const timeKeyword = (match[TIME_GROUP] || "").toLowerCase();
let component = context.createParsingComponents();
switch (dateKeyword) {
case "nyt":
component = references.now(context.reference);
break;
case "tänään":
component = references.today(context.reference);
break;
case "huomenna":
targetDate = addDuration(targetDate, { day: 1 });
assignSimilarDate(component, targetDate);
implySimilarTime(component, targetDate);
break;
case "ylihuomenna":
targetDate = addDuration(targetDate, { day: 2 });
assignSimilarDate(component, targetDate);
implySimilarTime(component, targetDate);
break;
case "eilen":
targetDate = addDuration(targetDate, { day: -1 });
assignSimilarDate(component, targetDate);
implySimilarTime(component, targetDate);
break;
case "toissapäivänä":
targetDate = addDuration(targetDate, { day: -2 });
assignSimilarDate(component, targetDate);
implySimilarTime(component, targetDate);
break;
default:
if (dateKeyword.match(/viime\s*yönä/)) {
if (targetDate.getHours() > 6) {
targetDate = addDuration(targetDate, { day: -1 });
}
assignSimilarDate(component, targetDate);
component.imply("hour", 0);
}
break;
}
if (timeKeyword) {
component = FICasualTimeParser.extractTimeComponents(component, timeKeyword);
}
return component;
}
}
//# sourceMappingURL=FICasualDateParser.js.map