chrono-node
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A natural language date parser in Javascript
41 lines • 1.77 kB
JavaScript
import { AbstractParserWithWordBoundaryChecking } from "../../../common/parsers/AbstractParserWithWordBoundary.js";
import { assignSimilarDate } from "../../../utils/dates.js";
import * as references from "../../../common/casualReferences.js";
const PATTERN = /(ora|oggi|stasera|questa sera|domani|dmn|ieri\s*sera)(?=\W|$)/i;
export default class ITCasualDateParser extends AbstractParserWithWordBoundaryChecking {
innerPattern(context) {
return PATTERN;
}
innerExtract(context, match) {
let targetDate = context.refDate;
const lowerText = match[0].toLowerCase();
const component = context.createParsingComponents();
switch (lowerText) {
case "ora":
return references.now(context.reference);
case "oggi":
return references.today(context.reference);
case "ieri":
return references.yesterday(context.reference);
case "domani":
case "dmn":
return references.tomorrow(context.reference);
case "stasera":
case "questa sera":
return references.tonight(context.reference);
default:
if (lowerText.match(/ieri\s*sera/)) {
if (targetDate.getHours() > 6) {
const previousDay = new Date(targetDate.getTime());
previousDay.setDate(previousDay.getDate() - 1);
targetDate = previousDay;
}
assignSimilarDate(component, targetDate);
component.imply("hour", 0);
}
break;
}
return component;
}
}
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