code: def _group_paths_without_options(cls, line_parse_result):
          
          active_pathspecs = set()
          for group in line_parse_result:
              active_pathspecs.add(group['pathspec'])
  
              has_options = (
                  'norm_options' in group or
                  'plot_options' in group or
                  'style_options' in group
              )
              if has_options:
                  yield active_pathspecs, group
                  active_pathspecs = set()
  
          if active_pathspecs:
              yield active_pathspecs, {}
docs: Given a parsed options specification as a list of groups, combine
          groups without options with the first subsequent group which has
          options.
          A line of the form
              'A B C [opts] D E [opts_2]'
          results in
              [({A, B, C}, [opts]), ({D, E}, [opts_2])]