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
85 (Unix.stat fname).Unix.st_kind = Unix.S_DIR
86 with Unix.Unix_error _ -> false
88 let is_regular fname =
90 (Unix.stat fname).Unix.st_kind = Unix.S_REG
91 with Unix.Unix_error _ -> false
93 let input_file fname =
94 let size = (Unix.stat fname).Unix.st_size in
95 let buf = Buffer.create size in
96 let ic = open_in fname in
97 Buffer.add_channel buf ic size;
101 let output_file data file =
102 let oc = open_out file in
103 output_string oc data;
107 let absolute_path file =
108 if file.[0] = '/' then file else Unix.getcwd () ^ "/" ^ file
110 let is_proof_script fname = true (** TODO Zack *)
111 let is_proof_object fname = true (** TODO Zack *)
113 let append_phrase_sep s =
114 if not (Pcre.pmatch ~pat:(sprintf "%s$" BuildTimeConf.phrase_sep) s) then
115 s ^ BuildTimeConf.phrase_sep
120 let components = Str.split (Str.regexp "/") path in
121 let rec aux where = function
124 let path = where ^ "/" ^ piece in
126 Unix.mkdir path 0o755
128 | Unix.Unix_error (Unix.EEXIST,_,_) -> ()
129 | Unix.Unix_error (e,_,_) ->
132 ("Unix.mkdir " ^ path ^ " 0o755 :" ^ (Unix.error_message e))));
138 let rex = Pcre.regexp "^\\s*(.*?)\\s*$" in
139 fun s -> (Pcre.extract ~rex s).(1)
141 let split ?(char = ' ') s =
142 let pieces = ref [] in
144 match (try Some (String.index_from s idx char) with Not_found -> None) with
146 pieces := String.sub s idx (pos - idx) :: !pieces;
148 | None -> pieces := String.sub s idx (String.length s - idx) :: !pieces
153 let empty_mathml () =
154 DomMisc.domImpl#createDocument ~namespaceURI:(Some DomMisc.mathml_ns)
155 ~qualifiedName:(Gdome.domString "math") ~doctype:None
158 DomMisc.domImpl#createDocument ~namespaceURI:(Some DomMisc.boxml_ns)
159 ~qualifiedName:(Gdome.domString "box") ~doctype:None
161 exception History_failure
163 type 'a memento = 'a array * int * int * int (* data, hd, tl, cur *)
165 class type ['a] history =
167 method add : 'a -> unit
170 method load: 'a memento -> unit
171 method save: 'a memento
172 method is_begin: bool
176 class basic_history (head, tail, cur) =
178 val mutable hd = head (* insertion point *)
179 val mutable tl = tail (* oldest inserted item *)
180 val mutable cur = cur (* current item for the history *)
182 method is_begin = cur <= tl
183 method is_end = cur >= hd
187 class shell_history size =
188 let size = size + 1 in
189 let decr x = let x' = x - 1 in if x' < 0 then size + x' else x' in
190 let incr x = (x + 1) mod size in
192 val data = Array.create size ""
194 inherit basic_history (0, -1 , -1)
198 if tl = -1 then tl <- hd;
200 if hd = tl then tl <- incr tl;
203 if cur = tl then raise History_failure;
207 if cur = hd then raise History_failure;
209 if cur = hd then "" else data.(cur)
210 method load (data', hd', tl', cur') =
211 assert (Array.length data = Array.length data');
212 hd <- hd'; tl <- tl'; cur <- cur';
213 Array.blit data' 0 data 0 (Array.length data')
214 method save = (Array.copy data, hd, tl, cur)
217 class ['a] browser_history ?memento size init =
219 initializer match memento with Some m -> self#load m | _ -> ()
220 val data = Array.create size init
222 inherit basic_history (0, 0, 0)
225 if cur = tl then raise History_failure;
227 if cur = ~-1 then cur <- size - 1;
230 if cur = hd then raise History_failure;
232 if cur = size then cur <- 0;
235 if e <> data.(cur) then
238 if cur = size then cur <- 0;
239 if cur = tl then tl <- tl + 1;
240 if tl = size then tl <- 0;
244 method load (data', hd', tl', cur') =
245 assert (Array.length data = Array.length data');
246 hd <- hd'; tl <- tl'; cur <- cur';
247 Array.blit data' 0 data 0 (Array.length data')
248 method save = (Array.copy data, hd, tl, cur)
252 let instance = lazy (f ()) in
253 fun () -> Lazy.force instance
255 let get_proof_status status =
256 match status.proof_status with
257 | Incomplete_proof s -> s
258 | _ -> statement_error "no ongoing proof"
260 let get_proof_metasenv status =
261 match status.proof_status with
263 | Incomplete_proof ((_, metasenv, _, _), _) -> metasenv
264 | Proof (_, metasenv, _, _) -> metasenv
265 | Intermediate m -> m
267 let get_proof_context status =
268 match status.proof_status with
269 | Incomplete_proof ((_, metasenv, _, _), goal) ->
270 let (_, context, _) = CicUtil.lookup_meta goal metasenv in
274 let get_proof_conclusion status =
275 match status.proof_status with
276 | Incomplete_proof ((_, metasenv, _, _), goal) ->
277 let (_, _, conclusion) = CicUtil.lookup_meta goal metasenv in
279 | _ -> statement_error "no ongoing proof"
281 let qualify status name = get_string_option status "baseuri" ^ "/" ^ name
283 let unopt = function None -> failwith "unopt: None" | Some v -> v
285 let image_path n = sprintf "%s/%s" BuildTimeConf.images_dir n
287 let end_ma_RE = Pcre.regexp "\\.ma$"
289 let obj_file_of_baseuri baseuri =
291 Helm_registry.get "matita.basedir" ^ "/xml" ^
292 Pcre.replace ~pat:"^cic:" ~templ:"" baseuri
296 let obj_file_of_script f =
297 if f = "coq.ma" then BuildTimeConf.coq_notation_script else
298 let baseuri = baseuri_of_file f in
299 obj_file_of_baseuri baseuri
301 let rec list_uniq = function
304 | h1::h2::tl when h1 = h2 -> list_uniq (h2 :: tl)
305 | h1::tl (* when h1 <> h2 *) -> h1 :: list_uniq tl
307 let list_tl_at ?(equality=(==)) e l =
310 | [] -> raise Not_found
311 | hd :: tl as l when equality hd e -> l
316 let debug_wrap name f =
317 prerr_endline (sprintf "debug_wrap: ==>> %s" name);
319 prerr_endline (sprintf "debug_wrap: <<== %s" name);