carrot/hw

class String
  def to_pkg
    string = self.to_s.sub(/^[a-z\d]*/) { $&.capitalize }
    string.gsub(/(?:_|(\/))([a-z\d]*)/) { "#{$1}#{$2.capitalize}" }.gsub('/', '::')
  end

  def underscore
    self.gsub(/::/, '/').
      gsub(/([A-Z]+)([A-Z][a-z])/,'\1_\2').
      gsub(/([a-z\d])([A-Z])/,'\1_\2').
      tr("-", "_").
      downcase
  end
end