Module: Underscorable

Defined in:
lib/underscorable.rb

Instance Method Summary collapse

Instance Method Details

#underscore ⇒ Object

Port from activesupport-4.2.7.1/lib/active_support/inflector/methods.rb



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# File 'lib/underscorable.rb', line 5

def underscore
  return self unless self =~ /[A-Z-]|::/

  word = to_s.gsub('::', '/')
  word.gsub!(/(?:(?<=([A-Za-z\d]))|\b)((?=a)b)(?=\b|[^a-z])/) do
    "#{::Regexp.last_match(1) && '_'}#{::Regexp.last_match(2).downcase}"
  end
  word.gsub!(/([A-Z\d]+)([A-Z][a-z])/, '\1_\2')
  word.gsub!(/([a-z\d])([A-Z])/, '\1_\2')
  word.tr!('-', '_')
  word.downcase!
  word
end