Using the nickel gem to naturally parse date related strings

A single occurrence

n = Nickel.parse "use the force on july 1st at 9am"
n.message                       #=> "use the force"
n.occurrences.first.start_date  #=> "20110701"

A daily occurrence

n = Nickel.parse "wake up everyday at 11am"
n.message                       # => wake up
n.occurrences[0].type           # => daily
n.occurrences[0].start_time     # => 11:00:00

A weekly occurrence

n = Nickel.parse "guitar lessons every tuesday at 5pm"
n.message                       # => guitar lessons
n.occurrences[0].type           # => weekly
n.occurrences[0].day_of_week    # => 1
n.occurrences[0].interval       # => 1
n.occurrences[0].start_time     # => 17:00:00

A day monthly occurrence

n = Nickel.parse "drink specials on the second thursday of every month"
n.message                       # => drink specials
n.occurrences[0].type           # => daymonthly
n.occurrences[0].day_of_week    # => 4
n.occurrences[0].week_of_month  # => 2
n.occurrences[0].interval       # => 1

A date monthly occurrence

n = Nickel.parse "pay credit card every month on the 22nd"
n.message                       # => pay credit card
n.occurrences[0].type           # => datemonthly
n.occurrences[0].date_of_month  # => 22
n.occurrences[0].interval       # => 1

Multiple occurrences

n = Nickel.parse "band meeting every monday and wednesday at 2pm"
n.message                       # => band meeting
n.occurrences[0].type           # => weekly
n.occurrences[0].day_of_week    # => 0
n.occurrences[0].start_time     # => 14:00:00
n.occurrences[1].type           # => weekly
n.occurrences[1].day_of_week    # => 2
n.occurrences[1].start_time     # => 14:00:00

Occurrences without any message

n = Nickel.parse "a week from tomorrow"
n.occurrences[0].start_date     # => 20140320

Setting current time

n = Nickel.parse "lunch 3 days from now", DateTime.new(2010,3,31)
n.message                       # => lunch
n.occurrences[0].start_date     # => 20100403

Extracting ruby date and time objects

n = Nickel.parse "dinner with friends at 8:00pm tonight"
n.message                               # => dinner with friends
n.occurrences[0].start_date.to_date     # => 2014-02-23
n.occurrences[0].start_time.to_time     # => 2014-02-23 20:00:00 +0000

Resources

Tags:
Source:
2359hrs.txt
Published:
02-05-2014 23:59