3rdparty/modules/inifile/lib/puppet/util/external_iterator.rb

   1 module Puppet
   2 module Util
   3   class ExternalIterator
   4     def initialize(coll)
   5       @coll = coll
   6       @cur_index = -1
   7     end
   8
   9     def next
  10       @cur_index = @cur_index + 1
  11       item_at(@cur_index)
  12     end
  13
  14     def peek
  15       item_at(@cur_index + 1)
  16     end
  17
  18     private
  19     def item_at(index)
  20       if @coll.length > index
  21         [@coll[index], index]
  22       else
  23         [nil, nil]
  24       end
  25     end
  26   end
  27 end
  28 end