val parse_cmdline : unit -> unit
val index_empty_texts : bool ref
val sample_factor : int ref
val disable_text_collection : bool ref
val count_only : bool ref
val query : string ref
val input_file : string ref
val output_file : string option ref
val save_file : string ref
val time : bool ref
val tc_threshold : int ref
val bottom_up : bool ref
val no_jump : bool ref
val verbose : bool ref
val text_index_type : int ref
val do_perf : bool ref
val twopass : bool ref