chrono-node
Version:
A natural language date parser in Javascript
35 lines • 1.77 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const constants_1 = require("../constants");
const results_1 = require("../../../results");
const AbstractParserWithWordBoundary_1 = require("../../../common/parsers/AbstractParserWithWordBoundary");
const pattern_1 = require("../../../utils/pattern");
const duration_1 = require("../../../calculation/duration");
class DETimeUnitAgoFormatParser extends AbstractParserWithWordBoundary_1.AbstractParserWithWordBoundaryChecking {
constructor() {
super();
}
innerPattern() {
return new RegExp(`(?:\\s*((?:nächste|kommende|folgende|letzte|vergangene|vorige|vor(?:her|an)gegangene)(?:s|n|m|r)?|vor|in)\\s*)?` +
`(${constants_1.NUMBER_PATTERN})?` +
`(?:\\s*(nächste|kommende|folgende|letzte|vergangene|vorige|vor(?:her|an)gegangene)(?:s|n|m|r)?)?` +
`\\s*(${(0, pattern_1.matchAnyPattern)(constants_1.TIME_UNIT_DICTIONARY)})(?=\\W|$)`, "i");
}
innerExtract(context, match) {
const num = match[2] ? (0, constants_1.parseNumberPattern)(match[2]) : 1;
const unit = constants_1.TIME_UNIT_DICTIONARY[match[4].toLowerCase()];
let timeUnits = {};
timeUnits[unit] = num;
let modifier = match[1] || match[3] || "";
modifier = modifier.toLowerCase();
if (!modifier) {
return;
}
if (/vor/.test(modifier) || /letzte/.test(modifier) || /vergangen/.test(modifier)) {
timeUnits = (0, duration_1.reverseDuration)(timeUnits);
}
return results_1.ParsingComponents.createRelativeFromReference(context.reference, timeUnits);
}
}
exports.default = DETimeUnitAgoFormatParser;
//# sourceMappingURL=DETimeUnitRelativeFormatParser.js.map