Class: VersionString

Inherits:
String
  • Object
show all
Defined in:
lib/version_string.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.make_comparable(s1, s2) ⇒ Object 



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# File 'lib/version_string.rb', line 15

def self.make_comparable(s1, s2)
  a1 = s1.split(".").map(&:to_i)
  a2 = s2.split(".").map(&:to_i)
  len1, len2 = a1.length, a2.length
  if len1 < len2
    a1.concat([0] * (len2 - len1))
  elsif len1 > len2
    a2.concat([0] * (len1 - len2))
  end
  [a1, a2]
end

Instance Method Details

#<=>(other) ⇒ Object 



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# File 'lib/version_string.rb', line 3

def <=>(other)
  a1, a2 = self.class.make_comparable(self, other)
  a1.zip(a2).each do |pair|
    if pair[0] < pair[1]
      return -1
    elsif pair[0] > pair[1]
      return 1
    end
  end
  0
end