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# Copyright (c) Chad Fowler, Rich Kilmer, Jim Weirich and others.
# Portions copyright (c) Engine Yard and Andre Arko
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# 'Software'), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
module Hashie
module Extensions
class RubyVersion
include Comparable
attr_accessor :segments
def initialize(version)
@segments = split_to_segments(version)
end
def <=>(other)
lhsegments = segments
rhsegments = other.segments
lhsize = lhsegments.size
rhsize = rhsegments.size
limit = (lhsize > rhsize ? lhsize : rhsize) - 1
i = 0
while i <= limit
lhs = lhsegments[i] || 0
rhs = rhsegments[i] || 0
i += 1
next if lhs == rhs
return -1 if lhs.is_a?(String) && rhs.is_a?(Numeric)
return 1 if lhs.is_a?(Numeric) && rhs.is_a?(String)
return lhs <=> rhs
end
0
end
private
def split_to_segments(version)
version.scan(/[0-9]+|[a-z]+/i).map do |segment|
/^\d+$/ =~ segment ? segment.to_i : segment
end.freeze
end
end
end
end
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