1 (* Copyright (C) 2004-2005, HELM Team.
3 * This file is part of HELM, an Hypertextual, Electronic
4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
7 * HELM is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * HELM is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with HELM; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 * For details, see the HELM World-Wide-Web page,
23 * http://helm.cs.unibo.it/
26 val baseuri_of_baseuri_decl:
27 ('a, 'b, 'c, 'd, 'e) GrafiteAst.statement -> string option
29 (** check whether no objects are defined below a given baseuri *)
30 val is_empty: string -> bool
32 val absolute_path: string -> string
34 (** @return true if file is a (textual) proof script *)
35 val is_proof_script: string -> bool
37 (** @return true if file is a (binary) proof object *)
38 val is_proof_object: string -> bool
40 (** given a phrase, if it doesn't end with BuildTimeConf.phrase_sep, append
42 val append_phrase_sep: string -> string
44 val strip_trailing_slash: string -> string
45 val normalize_dir: string -> string (** add trailing "/" if missing *)
46 val strip_suffix: suffix:string -> string -> string
48 (** @return tl tail of a list starting at a given element
49 * @param eq equality to be used, defaults to physical equality (==)
51 val list_tl_at: ?equality:('a -> 'a -> bool) -> 'a -> 'a list -> 'a list
53 exception History_failure
57 class type ['a] history =
59 method add : 'a -> unit
60 method next : 'a (** @raise History_failure *)
61 method previous : 'a (** @raise History_failure *)
62 method load: 'a memento -> unit
63 method save: 'a memento
68 (** shell like history: new items added at the end of the history
69 * @param size maximum history size *)
70 class shell_history : int -> [string] history
72 (** browser like history: new items added at the current point of the history
73 * @param size maximum history size
74 * @param first element in history (this history is never empty) *)
75 class ['a] browser_history: ?memento:'a memento -> int -> 'a -> ['a] history
77 (** create a singleton from a given function. Given function is invoked the
78 * first time it gets called. Next invocation will return first value *)
79 val singleton: (unit -> 'a) -> (unit -> 'a)
81 (** given the base name of an image, returns its full path *)
82 val image_path: string -> string
84 val baseuri_of_file: string -> string
85 val obj_file_of_script : basedir:string -> string -> string