chrono-node
Version:
A natural language date parser in Javascript
44 lines • 1.82 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 AbstractParserWithWordBoundaryChecking_1 = require("./AbstractParserWithWordBoundaryChecking");
const MONTH_NAME_GROUP = 1;
const YEAR_GROUP = 2;
class ARMonthNameParser extends AbstractParserWithWordBoundaryChecking_1.AbstractParserWithLeftRightBoundaryChecking {
innerPatternString(context) {
return (`(?:(?:في|خلال)\\s*)?` +
`(?:شهر\\s*)?` +
`(${(0, pattern_1.matchAnyPattern)(constants_1.MONTH_DICTIONARY)})` +
`(?:` +
`(?:\\s*(?:،|,)?\\s*(?:سنة|عام)?\\s*)` +
`(${constants_2.YEAR_PATTERN})` +
`)?`);
}
innerExtract(context, match) {
if (context.text.substring(0, match.index).match(/[0-9٠-٩]+\s*$/)) {
return null;
}
const monthName = match[MONTH_NAME_GROUP].toLowerCase();
const month = constants_1.MONTH_DICTIONARY[monthName];
if (!month) {
return null;
}
const result = context.createParsingResult(match.index, match[0]);
result.start.imply("day", 1);
result.start.assign("month", month);
if (match[YEAR_GROUP]) {
const year = (0, constants_2.parseYear)(match[YEAR_GROUP]);
result.start.assign("year", year);
}
else {
const year = (0, years_1.findYearClosestToRef)(context.refDate, 1, month);
result.start.imply("year", year);
}
return result;
}
}
exports.default = ARMonthNameParser;
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