chrono-node
Version:
A natural language date parser in Javascript
38 lines • 1.54 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const constants_1 = require("../constants");
const years_1 = require("../../../calculation/years");
const pattern_1 = require("../../../utils/pattern");
const constants_2 = require("../constants");
const AbstractParserWithWordBoundary_1 = require("../../../common/parsers/AbstractParserWithWordBoundary");
const PATTERN = new RegExp(`(${pattern_1.matchAnyPattern(constants_1.MONTH_DICTIONARY)})` +
`\\s*` +
`(?:` +
`[,-]?\\s*(${constants_2.YEAR_PATTERN})?` +
")?" +
"(?=[^\\s\\w]|\\s+[^0-9]|\\s+$|$)", "i");
const MONTH_NAME_GROUP = 1;
const YEAR_GROUP = 2;
class NLMonthNameParser extends AbstractParserWithWordBoundary_1.AbstractParserWithWordBoundaryChecking {
innerPattern() {
return PATTERN;
}
innerExtract(context, match) {
const components = context.createParsingComponents();
components.imply("day", 1);
const monthName = match[MONTH_NAME_GROUP];
const month = constants_1.MONTH_DICTIONARY[monthName.toLowerCase()];
components.assign("month", month);
if (match[YEAR_GROUP]) {
const year = constants_2.parseYear(match[YEAR_GROUP]);
components.assign("year", year);
}
else {
const year = years_1.findYearClosestToRef(context.refDate, 1, month);
components.imply("year", year);
}
return components;
}
}
exports.default = NLMonthNameParser;
//# sourceMappingURL=NLMonthNameParser.js.map