# File lib/treetop/compiler/metagrammar.rb, line 3794
      def _nt_inline_module
        start_index = index
        if node_cache[:inline_module].has_key?(index)
          cached = node_cache[:inline_module][index]
          if cached
            node_cache[:inline_module][index] = cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
            @index = cached.interval.end
          end
          return cached
        end

        i0, s0 = index, []
        if (match_len = has_terminal?('{', false, index))
          r1 = true
          @index += match_len
        else
          terminal_parse_failure('\'{\'')
          r1 = nil
        end
        s0 << r1
        if r1
          s2, i2 = [], index
          loop do
            i3 = index
            r4 = _nt_inline_module
            if r4
              r4 = SyntaxNode.new(input, (index-1)...index) if r4 == true
              r3 = r4
            else
              i5, s5 = index, []
              i6 = index
              if has_terminal?(@regexps[gr = '\A[{}]'] ||= Regexp.new(gr), :regexp, index)
                r7 = true
                @index += 1
              else
                terminal_parse_failure('[{}]')
                r7 = nil
              end
              if r7
                @index = i6
                r6 = nil
                terminal_parse_failure('[{}]', true)
              else
                @terminal_failures.pop
                @index = i6
                r6 = instantiate_node(SyntaxNode,input, index...index)
              end
              s5 << r6
              if r6
                if index < input_length
                  r8 = true
                  @index += 1
                else
                  terminal_parse_failure("any character")
                  r8 = nil
                end
                s5 << r8
              end
              if s5.last
                r5 = instantiate_node(SyntaxNode,input, i5...index, s5)
                r5.extend(InlineModule0)
              else
                @index = i5
                r5 = nil
              end
              if r5
                r5 = SyntaxNode.new(input, (index-1)...index) if r5 == true
                r3 = r5
              else
                @index = i3
                r3 = nil
              end
            end
            if r3
              s2 << r3
            else
              break
            end
          end
          r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
          s0 << r2
          if r2
            if (match_len = has_terminal?('}', false, index))
              r9 = true
              @index += match_len
            else
              terminal_parse_failure('\'}\'')
              r9 = nil
            end
            s0 << r9
          end
        end
        if s0.last
          r0 = instantiate_node(InlineModule,input, i0...index, s0)
          r0.extend(InlineModule1)
        else
          @index = i0
          r0 = nil
        end

        node_cache[:inline_module][start_index] = r0

        r0
      end