A block is an operation removing, adding, or changing a group of items. Basically, this is just a list of changes, where each change adds or deletes a single item. Used by bin/ldiff.
# File lib/diff/lcs/block.rb, line 23 def initialize(chunk) @changes = [] @insert = [] @remove = [] chunk.each do |item| @changes << item @remove << item if item.deleting? @insert << item if item.adding? end end
# File lib/diff/lcs/block.rb, line 35 def diff_size @insert.size - @remove.size end
# File lib/diff/lcs/block.rb, line 39 def op case [@remove.empty?, @insert.empty?] when [false, false] '!' when [false, true] '-' when [true, false] '+' else # [true, true] '^' end end