val append_phrase_sep: string -> string
val strip_trailing_blanks: string -> string
+val strip_trailing_slash: string -> string
+
+val list_uniq: 'a list -> 'a list (* uniq unix filter on lists *)
(** @raise Failure *)
val unopt: 'a option -> 'a
method previous : 'a (** @raise History_failure *)
method load: 'a memento -> unit
method save: 'a memento
+ method is_begin: bool
+ method is_end: bool
end
(** shell like history: new items added at the end of the history
val get_proof_context: MatitaTypes.status -> Cic.context
val get_proof_aliases: MatitaTypes.status -> DisambiguateTypes.environment
+ (** given the base name of an image, returns its full path *)
+val image_path: string -> string
+val obj_file_of_script: string -> string
+
+ (** invoke a given function and return its value; in addition il will print
+ * the given string before invoking it and "/" ^ the given string afterwards.
+ * This permit tracing of functions which does not return a value *)
+val debug_wrap: string -> (unit -> 'a) -> 'a
+