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defp/snake_case.rb

Created December 6, 2013 08:05
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snake_case.rb
class String
def snake_case
return downcase if match(/\A[A-Z]+\z/)
gsub(/([A-Z]+)([A-Z][a-z])/, '\1_\2').
gsub(/([a-z])([A-Z])/, '\1_\2').
downcase
end
end
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