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
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
#!/usr/bin/env ruby
require 'algorithm/diff'
# TODO: parameters
def loadfile(filename)
lines = nil
File.open(filename, "r") { |f|
lines = f.readlines
}
return lines
end
def diffrange(a, b)
if (a == b)
"#{a}"
else
"#{a},#{b}"
end
end
class Diff
def to_diff(io = $defout)
offset = 0
return if @diffs.empty?
#@diffs.each { |b|
first = @diffs[0][1]
length = @diffs.length
action = @diffs[0][0]
addcount = 0
remcount = 0
@diffs.each { |l|
if l[0] == "+"
addcount += 1
elsif l[0] == "-"
remcount += 1
end
}
if addcount == 0
puts "#{diffrange(first+1, first+remcount)}d#{first+offset}"
elsif remcount == 0
puts "#{first-offset}a#{diffrange(first+1, first+addcount)}"
else
puts "#{diffrange(first+1, first+remcount)}c#{diffrange(first+offset+1, first+offset+addcount)}"
end
lastdel = (@diffs[0][0] == "-")
@diffs.each { |l|
if l[0] == "-"
offset -= 1
print "< "
elsif l[0] == "+"
offset += 1
if lastdel
lastdel = false
puts "---"
end
print "> "
end
print l[2]
}
#}
end
end
if $0 == __FILE__
file1 = ARGV.shift
file2 = ARGV.shift
ary1 = loadfile file1
ary2 = loadfile file2
diff = Diff.new(ary1, ary2)
diff.to_diff
end
|
