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天文台pc/tianwentai-ui/node_modules/date-fns/parse/_lib/parsers/LocalWeekYearParser.js 1.9 KB
bc518174   王天杨   提交两个项目文件
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  "use strict";
  exports.LocalWeekYearParser = void 0;
  var _index = require("../../../getWeekYear.js");
  
  var _index2 = require("../../../startOfWeek.js");
  var _Parser = require("../Parser.js");
  
  var _utils = require("../utils.js");
  
  // Local week-numbering year
  class LocalWeekYearParser extends _Parser.Parser {
    priority = 130;
  
    parse(dateString, token, match) {
      const valueCallback = (year) => ({
        year,
        isTwoDigitYear: token === "YY",
      });
  
      switch (token) {
        case "Y":
          return (0, _utils.mapValue)(
            (0, _utils.parseNDigits)(4, dateString),
            valueCallback,
          );
        case "Yo":
          return (0, _utils.mapValue)(
            match.ordinalNumber(dateString, {
              unit: "year",
            }),
            valueCallback,
          );
        default:
          return (0, _utils.mapValue)(
            (0, _utils.parseNDigits)(token.length, dateString),
            valueCallback,
          );
      }
    }
  
    validate(_date, value) {
      return value.isTwoDigitYear || value.year > 0;
    }
  
    set(date, flags, value, options) {
      const currentYear = (0, _index.getWeekYear)(date, options);
  
      if (value.isTwoDigitYear) {
        const normalizedTwoDigitYear = (0, _utils.normalizeTwoDigitYear)(
          value.year,
          currentYear,
        );
        date.setFullYear(
          normalizedTwoDigitYear,
          0,
          options.firstWeekContainsDate,
        );
        date.setHours(0, 0, 0, 0);
        return (0, _index2.startOfWeek)(date, options);
      }
  
      const year =
        !("era" in flags) || flags.era === 1 ? value.year : 1 - value.year;
      date.setFullYear(year, 0, options.firstWeekContainsDate);
      date.setHours(0, 0, 0, 0);
      return (0, _index2.startOfWeek)(date, options);
    }
  
    incompatibleTokens = [
      "y",
      "R",
      "u",
      "Q",
      "q",
      "M",
      "L",
      "I",
      "d",
      "D",
      "i",
      "t",
      "T",
    ];
  }
  exports.LocalWeekYearParser = LocalWeekYearParser;