chrono-node
Version:
A natural language date parser in Javascript
47 lines • 2.1 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const dayjs_1 = __importDefault(require("dayjs"));
const AbstractParserWithWordBoundary_1 = require("../../../../common/parsers/AbstractParserWithWordBoundary");
const constants_1 = require("../constants");
const PATTERN = new RegExp("(?:星期|禮拜|週)(?<weekday>" + Object.keys(constants_1.WEEKDAY_OFFSET).join("|") + ")");
class ZHHantWeekdayParser extends AbstractParserWithWordBoundary_1.AbstractParserWithWordBoundaryChecking {
innerPattern() {
return PATTERN;
}
innerExtract(context, match) {
const result = context.createParsingResult(match.index, match[0]);
const dayOfWeek = match.groups.weekday;
const offset = constants_1.WEEKDAY_OFFSET[dayOfWeek];
if (offset === undefined)
return null;
let startMoment = dayjs_1.default(context.refDate);
const startMomentFixed = false;
const refOffset = startMoment.day();
if (Math.abs(offset - 7 - refOffset) < Math.abs(offset - refOffset)) {
startMoment = startMoment.day(offset - 7);
}
else if (Math.abs(offset + 7 - refOffset) < Math.abs(offset - refOffset)) {
startMoment = startMoment.day(offset + 7);
}
else {
startMoment = startMoment.day(offset);
}
result.start.assign("weekday", offset);
if (startMomentFixed) {
result.start.assign("day", startMoment.date());
result.start.assign("month", startMoment.month() + 1);
result.start.assign("year", startMoment.year());
}
else {
result.start.imply("day", startMoment.date());
result.start.imply("month", startMoment.month() + 1);
result.start.imply("year", startMoment.year());
}
return result;
}
}
exports.default = ZHHantWeekdayParser;
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