enum class RangeValueType{
    Int,
    Date,
    String
}

fun parseValue(value: String): Pair<RangeValueType, Any> {
    val rangeDate: LocalDateTime
    val rangeInt: Int
    //try date first
    try {
        //ISO_LOCAL_DATE_TIME e.g. 2011-12-03T10:15:30 for Dec. 3rd, 2011 & 10:15 30 sec.
        //can't use basic date b/c e.g. 20111203 is indistinguishable from an int.
        rangeDate = LocalDateTime.parse(value)
        //it parsed to a date, so return the date
        return Pair(RangeValueType.Date, rangeDate)
    }catch (dtpe: DateTimeParseException) {
        //not a date
    }
    //try number next
    try{
        rangeInt = value.toInt()
        //it parsed to an int, so return the int
        return Pair(RangeValueType.Int, rangeInt)
    }catch (nfe: NumberFormatException)
    {
        //not an int
    }
    //not date or int, must be a string
    return Pair(RangeValueType.String, value)
}