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Chronic Between

A simple Ruby natural language parser for date and time ranges. (For example, Mon-Fri 09:00-16:30, etc.) Returns a boolean result.

Several date and time ranges can be supplied with matching patterns being separated by a comma.

Installation

$ sudo gem sources -a http://gemcutter.org
$ sudo gem install chronic_between

Usage

>> s = 'Mon-Fri 9:00-16:30, Saturday, Sunday'
>> c = ChronicBetween.new(s)

>> DateTime.now      
=> #<DateTime: 2011-03-26T16:54:40+00:00

>> c.within? DateTime.now
=> true

>> c.within? DateTime.parse("28-Mar-2011 14:33")
=> true

>> c.within? DateTime.parse("28-Mar-2011 08:33")
=> false

Examples of parse-able strings:

  • 'Mon-Fri 9:00-16:30'
  • 'saturday'
  • '12:00-13:00'
  • 'Sat,Sun'
  • 'Mon-Fri 9:00-16:30, Saturday, Sunday'
  • 'Mon-Fri 9:00-16:30, Saturday, 10:15-10:45'
  • 'Sat 18:15-21:40'
  • 'Mon-Wed'
  • 'Mon-Fri 9:00 to 16:30'
  • '9:00-16:30 Mon-Fri'
  • '9:00 to 16:30 Mon-Fri'
  • '3:45 to 5:15'
  • 'Mon 3:45 to 5:15'
  • '3:45-5:15 Mon'
  • '3:45 to 5:15 Mon'
  • 'after 6pm'
  • 'before 9pm'
  • 'April 2nd - April 5th 12:00-14:00'
  • 'April 5th - April 9th'
  • 'April 5th'
  • 'not before 6pm'
  • 'except after 6pm'
  • 'Sunday, after 6pm'
  • 'Saturday, not after 6pm'