# File lib/diff/lcs/block.rb, line 23
23:   def initialize(chunk)
24:     @changes = []
25:     @insert = []
26:     @remove = []
27: 
28:     chunk.each do |item|
29:       @changes << item
30:       @remove << item if item.deleting?
31:       @insert << item if item.adding?
32:     end
33:   end