blob: fe86793b672e8c3b8dda35bd7462dbe35ba4772c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
# frozen_string_literal: true
# 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.
class Diff::LCS::Block
attr_reader :changes, :insert, :remove
def initialize(chunk)
@changes = []
@insert = []
@remove = []
chunk.each do |item|
@changes << item
@remove << item if item.deleting?
@insert << item if item.adding?
end
end
def diff_size
(@insert.size - @remove.size).abs
end
def op
case [@remove.empty?, @insert.empty?]
when [false, false]
'!'
when [false, true]
'-'
when [true, false]
'+'
else # [true, true]
'^'
end
end
end
|