grammar Mammoth
  rule primary
    string / number
  end

  rule number
    ([1-9] [0-9]* / '0') {
      def to_ruby(env={})
        text_value.to_i
      end
    }
  end

  rule string
    (['"] content:([^'"]+) ['"]) {
      def to_ruby(env={})
        content.text_value.to_s
      end
    }
  end
end