chrono-node
Version:
A natural language date parser in Javascript
35 lines • 1.37 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const constants_1 = require("../constants");
const pattern_1 = require("../../../utils/pattern");
const AbstractParserWithWordBoundary_1 = require("../../../common/parsers/AbstractParserWithWordBoundary");
const PATTERN = new RegExp(`([0-9]{4})[\\.\\/\\s]` +
`(?:(${pattern_1.matchAnyPattern(constants_1.MONTH_DICTIONARY)})|([0-9]{1,2}))[\\.\\/\\s]` +
`([0-9]{1,2})` +
"(?=\\W|$)", "i");
const YEAR_NUMBER_GROUP = 1;
const MONTH_NAME_GROUP = 2;
const MONTH_NUMBER_GROUP = 3;
const DATE_NUMBER_GROUP = 4;
class NLCasualYearMonthDayParser extends AbstractParserWithWordBoundary_1.AbstractParserWithWordBoundaryChecking {
innerPattern() {
return PATTERN;
}
innerExtract(context, match) {
const month = match[MONTH_NUMBER_GROUP]
? parseInt(match[MONTH_NUMBER_GROUP])
: constants_1.MONTH_DICTIONARY[match[MONTH_NAME_GROUP].toLowerCase()];
if (month < 1 || month > 12) {
return null;
}
const year = parseInt(match[YEAR_NUMBER_GROUP]);
const day = parseInt(match[DATE_NUMBER_GROUP]);
return {
day: day,
month: month,
year: year,
};
}
}
exports.default = NLCasualYearMonthDayParser;
//# sourceMappingURL=NLCasualYearMonthDayParser.js.map