Function parseRrule

codebase/sources/dhtmlxscheduler.js:17073–17121

(line)

    }
  }
  function parseRrule(line) {
    var strippedLine = line.replace(/^RRULE:/i, "");
    var options = parseDtstart(strippedLine);
    var attrs = line.replace(/^(?:RRULE|EXRULE):/i, "").split(";");
    attrs.forEach(function(attr) {
      var _a = attr.split("="), key = _a[0], value = _a[1];
      switch (key.toUpperCase()) {
        case "FREQ":
          options.freq = Frequency[value.toUpperCase()];
          break;
        case "WKST":
          options.wkst = Days[value.toUpperCase()];
          break;
        case "COUNT":
        case "INTERVAL":
        case "BYSETPOS":
        case "BYMONTH":
        case "BYMONTHDAY":
        case "BYYEARDAY":
        case "BYWEEKNO":
        case "BYHOUR":
        case "BYMINUTE":
        case "BYSECOND":
          var num = parseNumber(value);
          var optionKey = key.toLowerCase();
          options[optionKey] = num;
          break;
        case "BYWEEKDAY":
        case "BYDAY":
          options.byweekday = parseWeekday(value);
          break;
        case "DTSTART":
        case "TZID":
          var dtstart = parseDtstart(line);
          options.tzid = dtstart.tzid;
          options.dtstart = dtstart.dtstart;
          break;
        case "UNTIL":
          options.until = untilStringToDate(value);
          break;
        case "BYEASTER":
          options.byeaster = Number(value);
          break;
        default:
          throw new Error("Unknown RRULE property '" + key + "'");
      }
    });
    return options;
  }
  function parseNumber(value) {
    if (value.indexOf(",") !== -1) {
      var values = value.split(",");