What is this?
A crontab(5) parser.
Usage
crontab = Crontab.parse(src)
from_date = Date.parse('2009-10-10')
to_date = Date.parse('2009-10-20')
crontab.entries.each do |e|
puts e.command
e.schedule.from(from_date).until(to_date) do |timing|
puts timing
end
end