* http://helm.cs.unibo.it/
*)
+val baseuri_of_file : string -> string
+
+val baseuri_of_baseuri_decl : ('a, 'b, 'c) GrafiteAst.statement -> string option
+
+ (** check whether no objects are defined below a given baseuri *)
+val is_empty: string -> bool
+
+(** removes a file if it exists *)
+val safe_remove: string -> unit
+
val is_dir: string -> bool (** @return true if file is a directory *)
val is_regular: string -> bool (** @return true if file is a regular file *)
val input_file: string -> string (** read all the contents of file to string *)
+val output_file: string -> string -> unit (** write string to file *)
+
+val absolute_path: string -> string
(** @return true if file is a (textual) proof script *)
val is_proof_script: string -> bool
val strip_trailing_blanks: string -> string
val strip_trailing_slash: string -> string
+ (* split a string at character, char defaults to ' ' *)
+val split: ?char:char -> string -> string list
+
val list_uniq: 'a list -> 'a list (* uniq unix filter on lists *)
(** @raise Failure *)
(** given the base name of an image, returns its full path *)
val image_path: string -> string
+val obj_file_of_baseuri: string -> string
val obj_file_of_script: string -> string
(** invoke a given function and return its value; in addition il will print