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天文台pc/tianwentai-ui/node_modules/date-fns/parse/_lib/parsers/ISOTimezoneParser.mjs 1.27 KB
bc518174   王天杨   提交两个项目文件
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  import { constructFrom } from "../../../constructFrom.mjs";
  import { getTimezoneOffsetInMilliseconds } from "../../../_lib/getTimezoneOffsetInMilliseconds.mjs";
  import { timezonePatterns } from "../constants.mjs";
  import { Parser } from "../Parser.mjs";
  import { parseTimezonePattern } from "../utils.mjs";
  
  // Timezone (ISO-8601)
  export class ISOTimezoneParser extends Parser {
    priority = 10;
  
    parse(dateString, token) {
      switch (token) {
        case "x":
          return parseTimezonePattern(
            timezonePatterns.basicOptionalMinutes,
            dateString,
          );
        case "xx":
          return parseTimezonePattern(timezonePatterns.basic, dateString);
        case "xxxx":
          return parseTimezonePattern(
            timezonePatterns.basicOptionalSeconds,
            dateString,
          );
        case "xxxxx":
          return parseTimezonePattern(
            timezonePatterns.extendedOptionalSeconds,
            dateString,
          );
        case "xxx":
        default:
          return parseTimezonePattern(timezonePatterns.extended, dateString);
      }
    }
  
    set(date, flags, value) {
      if (flags.timestampIsSet) return date;
      return constructFrom(
        date,
        date.getTime() - getTimezoneOffsetInMilliseconds(date) - value,
      );
    }
  
    incompatibleTokens = ["t", "T", "X"];
  }