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/
29 (** Functions "imported" from Http_getter_misc *)
31 let strip_trailing_slash = Http_getter_misc.strip_trailing_slash
32 let normalize_dir = Http_getter_misc.normalize_dir
33 let strip_suffix = Http_getter_misc.strip_suffix
35 let baseuri_of_baseuri_decl st =
37 | GrafiteAst.Executable (_, GrafiteAst.Command (_, GrafiteAst.Set (_, "baseuri", buri))) ->
41 let baseuri_of_file file =
43 let ic = open_in file in
44 let istream = Ulexing.from_utf8_channel ic in
48 let stm = GrafiteParser.parse_statement istream in
49 match baseuri_of_baseuri_decl stm with
51 let u = strip_trailing_slash buri in
52 if String.length u < 5 || String.sub u 0 5 <> "cic:/" then
53 MatitaLog.error (file ^ " sets an incorrect baseuri: " ^ buri);
55 ignore(Http_getter.resolve u)
57 | Http_getter_types.Unresolvable_URI _ ->
58 MatitaLog.error (file ^ " sets an unresolvable baseuri: "^buri)
59 | Http_getter_types.Key_not_found _ -> ());
64 CicNotationParser.Parse_error _ as exn ->
65 prerr_endline ("Unable to parse: " ^ file);
66 prerr_endline (MatitaExcPp.to_string exn);
69 with End_of_file -> close_in ic);
72 | None -> failwith ("No baseuri defined in " ^ file)
77 Http_getter_types.Ls_section _ -> true
78 | Http_getter_types.Ls_object _ -> false)
79 (Http_getter.ls (Http_getter_misc.strip_trailing_slash buri ^ "/"))
81 let safe_remove fname = if Sys.file_exists fname then Sys.remove fname
84 let absolute_path file =
85 if file.[0] = '/' then file else Unix.getcwd () ^ "/" ^ file
87 let is_proof_script fname = true (** TODO Zack *)
88 let is_proof_object fname = true (** TODO Zack *)
90 let append_phrase_sep s =
91 if not (Pcre.pmatch ~pat:(sprintf "%s$" BuildTimeConf.phrase_sep) s) then
92 s ^ BuildTimeConf.phrase_sep
97 DomMisc.domImpl#createDocument ~namespaceURI:(Some DomMisc.mathml_ns)
98 ~qualifiedName:(Gdome.domString "math") ~doctype:None
101 DomMisc.domImpl#createDocument ~namespaceURI:(Some DomMisc.boxml_ns)
102 ~qualifiedName:(Gdome.domString "box") ~doctype:None
104 exception History_failure
106 type 'a memento = 'a array * int * int * int (* data, hd, tl, cur *)
108 class type ['a] history =
110 method add : 'a -> unit
113 method load: 'a memento -> unit
114 method save: 'a memento
115 method is_begin: bool
119 class basic_history (head, tail, cur) =
121 val mutable hd = head (* insertion point *)
122 val mutable tl = tail (* oldest inserted item *)
123 val mutable cur = cur (* current item for the history *)
125 method is_begin = cur <= tl
126 method is_end = cur >= hd
130 class shell_history size =
131 let size = size + 1 in
132 let decr x = let x' = x - 1 in if x' < 0 then size + x' else x' in
133 let incr x = (x + 1) mod size in
135 val data = Array.create size ""
137 inherit basic_history (0, -1 , -1)
141 if tl = -1 then tl <- hd;
143 if hd = tl then tl <- incr tl;
146 if cur = tl then raise History_failure;
150 if cur = hd then raise History_failure;
152 if cur = hd then "" else data.(cur)
153 method load (data', hd', tl', cur') =
154 assert (Array.length data = Array.length data');
155 hd <- hd'; tl <- tl'; cur <- cur';
156 Array.blit data' 0 data 0 (Array.length data')
157 method save = (Array.copy data, hd, tl, cur)
160 class ['a] browser_history ?memento size init =
162 initializer match memento with Some m -> self#load m | _ -> ()
163 val data = Array.create size init
165 inherit basic_history (0, 0, 0)
168 if cur = tl then raise History_failure;
170 if cur = ~-1 then cur <- size - 1;
173 if cur = hd then raise History_failure;
175 if cur = size then cur <- 0;
178 if e <> data.(cur) then
181 if cur = size then cur <- 0;
182 if cur = tl then tl <- tl + 1;
183 if tl = size then tl <- 0;
187 method load (data', hd', tl', cur') =
188 assert (Array.length data = Array.length data');
189 hd <- hd'; tl <- tl'; cur <- cur';
190 Array.blit data' 0 data 0 (Array.length data')
191 method save = (Array.copy data, hd, tl, cur)
195 let instance = lazy (f ()) in
196 fun () -> Lazy.force instance
198 let get_proof_status status =
199 match status.proof_status with
200 | Incomplete_proof s -> s
201 | _ -> statement_error "no ongoing proof"
203 let get_proof_metasenv status =
204 match status.proof_status with
206 | Incomplete_proof ((_, metasenv, _, _), _) -> metasenv
207 | Proof (_, metasenv, _, _) -> metasenv
208 | Intermediate m -> m
210 let get_proof_context status =
211 match status.proof_status with
212 | Incomplete_proof ((_, metasenv, _, _), goal) ->
213 let (_, context, _) = CicUtil.lookup_meta goal metasenv in
217 let get_proof_conclusion status =
218 match status.proof_status with
219 | Incomplete_proof ((_, metasenv, _, _), goal) ->
220 let (_, _, conclusion) = CicUtil.lookup_meta goal metasenv in
222 | _ -> statement_error "no ongoing proof"
224 let qualify status name = get_string_option status "baseuri" ^ "/" ^ name
226 let image_path n = sprintf "%s/%s" BuildTimeConf.images_dir n
228 let end_ma_RE = Pcre.regexp "\\.ma$"
230 let obj_file_of_baseuri baseuri =
232 Helm_registry.get "matita.basedir" ^ "/xml" ^
233 Pcre.replace ~pat:"^cic:" ~templ:"" baseuri
237 let obj_file_of_script f =
238 if f = "coq.ma" then BuildTimeConf.coq_notation_script else
239 let baseuri = baseuri_of_file f in
240 obj_file_of_baseuri baseuri
242 let rec list_uniq = function
245 | h1::h2::tl when h1 = h2 -> list_uniq (h2 :: tl)
246 | h1::tl (* when h1 <> h2 *) -> h1 :: list_uniq tl
248 let list_tl_at ?(equality=(==)) e l =
251 | [] -> raise Not_found
252 | hd :: tl as l when equality hd e -> l