Set idx-th bit in var to 0
Set idx-th bit in var to 1
Get idx-th bit in var
Convert std.datetime.DayOfWeek enum to dow index
Fill all allowed indexes to var
Parse list of indexes to var (eg. "1,2,3,5,8")
Parse range of indexes to var (eg. "2-4" or "5-1")
Parse sequence of indexes to var (eg. "a/x" == "a, a+x, a+2x, ...")
This module contains some utils usefull for cron parser