Class: Array
Instance Method Summary collapse
Instance Method Details
#to_ranges ⇒ Object
20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 |
# File 'lib/joffice/kernel/array.rb', line 20 def to_ranges array = self.compact.uniq.sort ranges = [] if !array.empty? # Initialize the left and right endpoints of the range left, right = array.first, nil array.each do |obj| # If the right endpoint is set and obj is not equal to right's successor # then we need to create a range. if right && obj != right.succ ranges << Range.new(left,right) left = obj end right = obj end ranges << Range.new(left,right) end ranges end |