wacko regex

gistfile1.rb

# cron schedule regex:
# 
# Needed a way to break this monster into nibblets. 
# It all gets combined in the end for the most horrific regex i've ever seen!
# 
# minute: 
#   list:   (([0-5]?[0-9]),)+([0-5]?[0-9])
#   mod:    (0|\*)\/[0-5]?[0-9]
#   expl:   [0-5]?[0-9]
#   final:  ((0|\*)\/[0-5]?[0-9]|[0-5]?[0-9]|(([0-5]?[0-9]),)+([0-5]?[0-9])|\*)
# hour: 
#   list:   ((2[0-3]|1[0-9]|[0-9]),)+(2[0-3]|1[0-9]|[0-9])
#   mod:    (0|\*)\/(2[0-3]|1[0-9]|[0-9])
#   expl:   (2[0-3]|1[0-9]|[0-9])
#   final:  ((0|\*)\/(2[0-3]|1[0-9]|[0-9])|(2[0-3]|1[0-9]|[0-9])|((2[0-3]|1[0-9]|[0-9]),)+(2[0-3]|1[0-9]|[0-9])|\*)
# day of month:
#   list:   ((3[0-1]|[1-2][0-9]|[0-9]),)+(3[0-1]|[1-2][0-9]|[0-9])
#   mod:    (0|\*)\/(3[0-1]|[1-2][0-9]|[0-9])
#   expl:   (3[0-1]|[1-2][0-9]|[0-9])
#   final:  ((0|\*)\/(3[0-1]|[1-2][0-9]|[0-9])|(3[0-1]|[1-2][0-9]|[0-9])|((3[0-1]|[1-2][0-9]|[0-9]),)+(3[0-1]|[1-2][0-9]|[0-9])|\*)
# month:
#   list:   ((1[0-2]|[1-9]),)+(1[0-2]|[1-9])
#   mod:    (0|\*)\/(1[0-2]|[1-9])
#   expl:   (1[0-2]|[1-9])
#   abbrv:  
#   final: