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天文台pc/tianwentai-ui/node_modules/date-fns/parse/_lib/parsers/DateParser.js 1.37 KB
bc518174   王天杨   提交两个项目文件
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  "use strict";
  exports.DateParser = void 0;
  var _constants = require("../constants.js");
  var _Parser = require("../Parser.js");
  
  var _utils = require("../utils.js");
  
  const DAYS_IN_MONTH = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
  const DAYS_IN_MONTH_LEAP_YEAR = [
    31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31,
  ];
  
  // Day of the month
  class DateParser extends _Parser.Parser {
    priority = 90;
    subPriority = 1;
  
    parse(dateString, token, match) {
      switch (token) {
        case "d":
          return (0, _utils.parseNumericPattern)(
            _constants.numericPatterns.date,
            dateString,
          );
        case "do":
          return match.ordinalNumber(dateString, { unit: "date" });
        default:
          return (0, _utils.parseNDigits)(token.length, dateString);
      }
    }
  
    validate(date, value) {
      const year = date.getFullYear();
      const isLeapYear = (0, _utils.isLeapYearIndex)(year);
      const month = date.getMonth();
      if (isLeapYear) {
        return value >= 1 && value <= DAYS_IN_MONTH_LEAP_YEAR[month];
      } else {
        return value >= 1 && value <= DAYS_IN_MONTH[month];
      }
    }
  
    set(date, _flags, value) {
      date.setDate(value);
      date.setHours(0, 0, 0, 0);
      return date;
    }
  
    incompatibleTokens = [
      "Y",
      "R",
      "q",
      "Q",
      "w",
      "I",
      "D",
      "i",
      "e",
      "c",
      "t",
      "T",
    ];
  }
  exports.DateParser = DateParser;