Treetop grammar to find array of C enum elements

spike.treetop

grammar Spike

  rule typedef
    'typedef enum { ' typedef_items ' }'
    {
      def items
        typedef_items.items
      end
    }
  end

  rule typedef_items
    first_item:item other:(',' s item)*
    {
      def items
        [first_item.name] + other_item_names
      end

      def other_item_names
        other.elements.map do |comma_and_item|
          comma_and_item.item.name
        end
      end
    }
  end

  rule item
    [\w]+
    {
      def name
        text_value
      end
    }
  end

  rule s # Optional space
    S?
  end
   
  rule S # Mandatory space
    (white / comment_to_eol / comment_c_style)+
  end
   
  rule white
    [ \t\n\r]+
  end
   
  rule comment_to_eol
    '//' (!"\n" .)+
  end
   
  rule comment_c_style
    '/*' (!'*/' . )* '*/'
  end

end