parse_constant

# File lib/rdoc/parsers/parse_rb.rb, line 1827
    def parse_constant(container, single, tk, comment)
      name = tk.name
      skip_tkspace(false)
      eq_tk = get_tk

      unless eq_tk.kind_of?(TkASSIGN)
        unget_tk(eq_tk)
        return
      end


      nest = 0
      get_tkread

      tk = get_tk
      if tk.kind_of? TkGT
        unget_tk(tk)
        unget_tk(eq_tk)
        return
      end

      loop do
        puts("Param: #{tk}, #{@scanner.continue} " +
          "#{@scanner.lex_state} #{nest}")  if $DEBUG

        case tk
        when TkSEMICOLON
          break
        when TkLPAREN, TkfLPAREN
          nest += 1
        when TkRPAREN
          nest -= 1
        when TkCOMMENT
          if nest <= 0 && @scanner.lex_state == EXPR_END
            unget_tk(tk)
            break
          end
        when TkNL
          if (@scanner.lex_state == EXPR_END and nest <= 0) || !@scanner.continue
            unget_tk(tk)
            break
          end
        end
        tk = get_tk
      end

      res = get_tkread.tr("\n", " ").strip
      res = "" if res == ";"
      con = Constant.new(name, res, comment)
      read_documentation_modifiers(con, CONSTANT_MODIFIERS)
      if con.document_self
        container.add_constant(con)
      end
    end