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(* $Id$ *)
(*s This module is the heart of the library. It provides low level functions to
load, open and save modules. Modules are saved onto the disk with checksums
(obtained with the [Digest] module), which are checked at loading time to
prevent inconsistencies between files written at various dates. It also
provides a high level function [require] which corresponds to the
vernacular command [Require]. *)
val load_module : string -> string option -> unit
val open_module : string -> unit
val module_is_loaded : string -> bool
val module_is_opened : string -> bool
val loaded_modules : unit -> string list
val opened_modules : unit -> string list
val fmt_modules_state : unit -> Pp.std_ppcmds
(*s Require. The command [require_module spec m file export] loads and opens
a module [m]. [file] specifies the filename, if not [None]. [spec]
specifies to look for a specification ([true]) or for an implementation
([false]), if not [None]. And [export] specifies if the module must be
exported. *)
val require_module : bool option -> string -> string option -> bool -> unit
(*s [save_module_to s f] saves the current environment as a module [s]
in the file [f]. *)
val save_module_to : string -> string -> unit
(*s [module_segment m] returns the segment of the loaded module
[m]; if not given, the segment of the current module is returned
(which is then the same as [Lib.contents_after None]).
[module_filename] returns the full filename of a loaded module. *)
val module_segment : string option -> Lib.library_segment
val module_filename : string -> System.load_path_entry * string
(*s Global load path *)
val get_load_path : unit -> System.load_path
val add_load_path_entry : System.load_path_entry -> unit
val add_path : string -> unit
val rec_add_path : string -> unit
val remove_path : string -> unit
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