blob: 83eaaa35efa08ba0ae45a7da9de3c89313983831 (
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
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
|
class Array
def uniq!
ary = self.dup
result = []
while ary.size > 0
result << ary.shift
ary.delete(result.last)
end
self.replace(result)
end
def uniq
self.dup.uniq!
end
def -(elem)
raise TypeError, "can't convert to Array" unless elem.class == Array
hash = {}
array = []
elem.each { |x| hash[x] = true }
self.each { |x| array << x unless hash[x] }
array
end
def |(elem)
raise TypeError, "can't convert to Array" unless elem.class == Array
(self + elem).uniq!
end
def &(elem)
raise TypeError, "can't convert to Array" unless elem.class == Array
hash = {}
array = []
elem.each{|v| hash[v] = true }
self.each do |v|
if hash[v]
array << v
hash.delete v
end
end
array
end
def flatten(depth=nil)
ar = []
self.each do |e|
if e.is_a?(Array) && (depth.nil? || depth > 0)
ar += e.flatten(depth.nil? ? nil : depth - 1)
else
ar << e
end
end
ar
end
def flatten!
self.replace(self.flatten)
end
def compact
result = self.dup
result.compact!
result
end
def compact!
result = self.select { |e| e != nil }
self.replace(result)
end
end
|
