code: def get_filetypes_info(editor_quote="`", flag_leaf=True):
      
      NONE_REPL = ""
      import f311
      data = []  # [FileTypeInfo, ...]
  
      for attr in f311.classes_file(flag_leaf):
          description = a99.get_obj_doc0(attr)
  
          def_ = NONE_REPL if attr.default_filename is None else attr.default_filename
          ee = attr.editors
          if ee is None:
              ee = NONE_REPL
          else:
              # Example: "``mained.py``, ``x.py``"
              ee = ", ".join(["{0}{1}{0}".format(editor_quote, x, editor_quote) for x in ee])
  
          data.append({"description": description, "default_filename": def_, "classname": attr.__name__,
                       "editors": ee, "class": attr, "txtbin": "text" if attr.flag_txt else "binary"})
  
      data.sort(key=lambda x: x["description"])
  
      return data
docs: Reports available data types
  
      Args:
          editor_quote: character to enclose the name of the editor script between.
          flag_leaf: see tabulate_filetypes_rest()
  
      Returns:
          list: list of FileTypeInfo