on_start_element

# File activesupport/lib/active_support/xml_mini/libxmlsax.rb, line 35
      def on_start_element(name, attrs = {})
        new_hash = { CONTENT_KEY => '' }.merge(attrs)
        new_hash[HASH_SIZE_KEY] = new_hash.size + 1

        case current_hash[name]
          when Array then current_hash[name] << new_hash
          when Hash  then current_hash[name] = [current_hash[name], new_hash]
          when nil   then current_hash[name] = new_hash
        end

        @hash_stack.push(new_hash)
      end