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/
31 module TA = GrafiteAst
34 let debug_print = if debug then prerr_endline else ignore
36 (** raised when one of the script margins (top or bottom) is reached *)
38 exception NoUnfinishedProof
40 let safe_substring s i j =
41 try String.sub s i j with Invalid_argument _ -> assert false
43 let heading_nl_RE = Pcre.regexp "^\\s*\n\\s*"
44 let heading_nl_RE' = Pcre.regexp "^(\\s*\n\\s*)((.|\n)*)"
45 let only_dust_RE = Pcre.regexp "^(\\s|\n|%%[^\n]*\n)*$"
46 let multiline_RE = Pcre.regexp "^\n[^\n]+$"
47 let newline_RE = Pcre.regexp "\n"
50 if Pcre.pmatch ~rex:multiline_RE str then
51 "\n(** " ^ (Pcre.replace ~rex:newline_RE str) ^ " *)"
53 "\n(**\n" ^ str ^ "\n*)"
56 let s = Pcre.replace ~rex:heading_nl_RE s in
58 let nl_pos = String.index s '\n' in
62 (** creates a statement AST for the Goal tactic, e.g. "goal 7" *)
64 let module A = GrafiteAst in
65 let loc = HExtlib.dummy_floc in
66 A.Executable (loc, A.Tactical (loc,
67 A.Tactic (loc, A.Goal (loc, n)),
71 mathviewer:MatitaTypes.mathViewer;
72 urichooser: UriManager.uri list -> UriManager.uri list;
73 ask_confirmation: title:string -> message:string -> [`YES | `NO | `CANCEL];
74 develcreator: containing:string option -> unit;
75 mutable filenamedata: string option * MatitamakeLib.development option
78 let eval_with_engine guistuff lexicon_status grafite_status user_goal
81 let module TAPp = GrafiteAstPp in
83 match guistuff.filenamedata with
85 | None,Some devel -> [MatitamakeLib.root_for_development devel ]
87 match MatitamakeLib.development_for_dir (Filename.dirname f) with
89 | Some devel -> [MatitamakeLib.root_for_development devel ]
92 include_ @ (Helm_registry.get_list Helm_registry.string "matita.includes")
94 let parsed_text_length = String.length parsed_text in
96 match st with TA.Executable (loc,ex) -> loc, ex | _ -> assert false in
97 let initial_space,parsed_text =
99 let pieces = Pcre.extract ~rex:heading_nl_RE' parsed_text in
100 pieces.(1), pieces.(2)
102 Not_found -> "", parsed_text in
103 let inital_space,new_grafite_status,new_lexicon_status,new_status_and_text_list' =
104 (* the code commented out adds the "select" command if needed *)
105 initial_space,grafite_status,lexicon_status,[] in
106 (* match grafite_status.proof_status with
107 | Incomplete_proof { stack = stack }
108 when not (List.mem user_goal (Continuationals.head_goals stack)) ->
110 MatitaEngine.eval_ast
111 ~do_heavy_checks:true grafite_status (goal_ast user_goal)
113 let initial_space = if initial_space = "" then "\n" else initial_space
115 "\n", grafite_status,
117 initial_space ^ TAPp.pp_tactical (TA.Select (loc, [user_goal])) ]
118 | _ -> initial_space,grafite_status,[] in *)
119 let enriched_history_fragment =
120 MatitaEngine.eval_ast ~do_heavy_checks:true
121 new_lexicon_status new_grafite_status st
123 let _,new_text_list_rev =
124 let module DTE = DisambiguateTypes.Environment in
125 let module UM = UriManager in
127 fun (_,alias) (initial_space,acc) ->
129 None -> initial_space,initial_space::acc
130 | Some (k,((v,_) as value)) ->
133 if initial_space = "" then "\n" else initial_space
136 DisambiguatePp.pp_environment
137 (DisambiguateTypes.Environment.add k value
138 DisambiguateTypes.Environment.empty)
141 ) enriched_history_fragment (initial_space,[]) in
142 let new_text_list_rev =
143 match enriched_history_fragment,new_text_list_rev with
144 (_,None)::_, initial_space::tl -> (initial_space ^ parsed_text)::tl
145 | _,_ -> assert false
149 List.combine (fst (List.split enriched_history_fragment)) new_text_list_rev
151 Invalid_argument _ -> assert false
153 res,parsed_text_length
156 guistuff lexicon_status grafite_status user_goal parsed_text st
159 eval_with_engine guistuff lexicon_status grafite_status user_goal parsed_text
162 | DependenciesParser.UnableToInclude what
163 | GrafiteEngine.IncludedFileNotCompiled what as exc ->
164 let compile_needed_and_go_on d =
167 while Glib.Main.pending () do ignore(Glib.Main.iteration false); done
169 if not(MatitamakeLib.build_development_in_bg ~target refresh_cb d) then
172 eval_with_engine guistuff lexicon_status grafite_status user_goal
175 let do_nothing () = [], 0 in
176 let handle_with_devel d =
177 let name = MatitamakeLib.name_for_development d in
178 let title = "Unable to include " ^ what in
180 what ^ " is handled by development <b>" ^ name ^ "</b>.\n\n" ^
181 "<i>Should I compile it and Its dependencies?</i>"
183 (match guistuff.ask_confirmation ~title ~message with
184 | `YES -> compile_needed_and_go_on d
186 | `CANCEL -> do_nothing ())
188 let handle_without_devel filename =
189 let title = "Unable to include " ^ what in
191 what ^ " is <b>not</b> handled by a development.\n" ^
192 "All dependencies are automatically solved for a development.\n\n" ^
193 "<i>Do you want to set up a development?</i>"
195 (match guistuff.ask_confirmation ~title ~message with
199 guistuff.develcreator ~containing:(Some (Filename.dirname f))
200 | None -> guistuff.develcreator ~containing:None);
203 | `CANCEL -> do_nothing())
205 match guistuff.filenamedata with
206 | None,None -> handle_without_devel None
207 | None,Some d -> handle_with_devel d
209 match MatitamakeLib.development_for_dir (Filename.dirname f) with
210 | None -> handle_without_devel (Some f)
211 | Some d -> handle_with_devel d
214 let pp_eager_statement_ast =
215 GrafiteAstPp.pp_statement ~term_pp:CicNotationPp.pp_term
216 ~lazy_term_pp:(fun _ -> assert false) ~obj_pp:(fun _ -> assert false)
218 let rec eval_macro (buffer : GText.buffer) guistuff lexicon_status grafite_status user_goal unparsed_text parsed_text script mac =
219 let module TAPp = GrafiteAstPp in
220 let module MQ = MetadataQuery in
221 let module MDB = LibraryDb in
222 let module CTC = CicTypeChecker in
223 let module CU = CicUniv in
224 (* no idea why ocaml wants this *)
225 let parsed_text_length = String.length parsed_text in
226 let dbd = LibraryDb.instance () in
227 (* XXX use a real CIC -> string pretty printer *)
228 let pp_macro = TAPp.pp_macro ~term_pp:CicPp.ppterm in
231 | TA.WMatch (loc, term) ->
232 let l = Whelp.match_term ~dbd term in
234 MatitaMisc.strip_suffix ~suffix:"."
235 (HExtlib.trim_blanks unparsed_text)
237 let entry = `Whelp (query_url, l) in
238 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
239 [], parsed_text_length
240 | TA.WInstance (loc, term) ->
241 let l = Whelp.instance ~dbd term in
242 let entry = `Whelp (pp_macro (TA.WInstance (loc, term)), l) in
243 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
244 [], parsed_text_length
245 | TA.WLocate (loc, s) ->
246 let l = Whelp.locate ~dbd s in
247 let entry = `Whelp (pp_macro (TA.WLocate (loc, s)), l) in
248 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
249 [], parsed_text_length
250 | TA.WElim (loc, term) ->
253 | Cic.MutInd (uri,n,_) -> UriManager.uri_of_uriref uri n None
254 | _ -> failwith "Not a MutInd"
256 let l = Whelp.elim ~dbd uri in
257 let entry = `Whelp (pp_macro (TA.WElim (loc, term)), l) in
258 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
259 [], parsed_text_length
260 | TA.WHint (loc, term) ->
261 let s = ((None,[0,[],term], Cic.Meta (0,[]) ,term),0) in
262 let l = List.map fst (MQ.experimental_hint ~dbd s) in
263 let entry = `Whelp (pp_macro (TA.WHint (loc, term)), l) in
264 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
265 [], parsed_text_length
271 | None -> raise NoUnfinishedProof
273 let proof = GrafiteTypes.get_current_proof grafite_status in
274 let proof_status = proof,user_goal' in
275 let l = List.map fst (MQ.experimental_hint ~dbd proof_status) in
276 let selected = guistuff.urichooser l in
278 | [] -> [], parsed_text_length
280 let suri = UriManager.string_of_uri uri in
282 TA.Executable (loc, (TA.Tactical (loc,
284 TA.Apply (loc, CicNotationPt.Uri (suri, None))),
285 Some (TA.Dot loc)))) in
287 comment parsed_text ^ "\n" ^
288 pp_eager_statement_ast (ast HExtlib.dummy_floc) in
289 let text_len = String.length text in
290 let loc = HExtlib.floc_of_loc (0,text_len) in
291 let statement = `Ast (GrafiteParser.LSome (ast loc),text) in
292 let res,_parsed_text_len =
293 eval_statement buffer guistuff lexicon_status grafite_status
294 user_goal script statement
296 (* we need to replace all the parsed_text *)
297 res,String.length parsed_text
300 "The result of the urichooser should be only 1 uri, not:\n";
302 fun u -> HLog.error (UriManager.string_of_uri u ^ "\n")
305 | TA.Check (_,term) ->
306 let metasenv = GrafiteTypes.get_proof_metasenv grafite_status in
310 | Some n -> GrafiteTypes.get_proof_context grafite_status n in
311 let ty,_ = CTC.type_of_aux' metasenv context term CicUniv.empty_ugraph in
312 let t_and_ty = Cic.Cast (term,ty) in
313 guistuff.mathviewer#show_entry (`Cic (t_and_ty,metasenv));
314 [], parsed_text_length
316 | TA.Quit _ -> failwith "not implemented"
317 | TA.Print (_,kind) -> failwith "not implemented"
318 | TA.Search_pat (_, search_kind, str) -> failwith "not implemented"
319 | TA.Search_term (_, search_kind, term) -> failwith "not implemented"
321 and eval_executable (buffer : GText.buffer) guistuff lexicon_status grafite_status user_goal unparsed_text parsed_text script loc ex
323 let module TAPp = GrafiteAstPp in
324 let module MD = GrafiteDisambiguator in
325 let module ML = MatitaMisc in
329 | TA.Command (_,TA.Set (_,"baseuri",u)) ->
330 if not (GrafiteMisc.is_empty u) then
332 guistuff.ask_confirmation
333 ~title:"Baseuri redefinition"
335 "Baseuri " ^ u ^ " already exists.\n" ^
336 "Do you want to redefine the corresponding "^
337 "part of the library?")
340 let basedir = Helm_registry.get "matita.basedir" in
341 LibraryClean.clean_baseuris ~basedir [u]
343 | `CANCEL -> raise MatitaTypes.Cancel)
347 guistuff lexicon_status grafite_status user_goal parsed_text
348 (TA.Executable (loc, ex))
350 MatitaTypes.Cancel -> [], 0
351 | GrafiteEngine.Macro (_loc,lazy_macro) ->
355 | Some n -> GrafiteTypes.get_proof_context grafite_status n in
356 let grafite_status,macro = lazy_macro context in
357 eval_macro buffer guistuff lexicon_status grafite_status user_goal
358 unparsed_text parsed_text script macro
360 and eval_statement (buffer : GText.buffer) guistuff lexicon_status
361 grafite_status user_goal script statement
363 let (lexicon_status,st), unparsed_text =
366 if Pcre.pmatch ~rex:only_dust_RE text then raise Margin;
367 GrafiteParser.parse_statement (Ulexing.from_utf8_string text)
368 ~include_paths:(Helm_registry.get_list
369 Helm_registry.string "matita.includes")
371 | `Ast (st, text) -> (lexicon_status, st), text
373 let text_of_loc loc =
374 let parsed_text_length = snd (HExtlib.loc_of_floc loc) in
375 let parsed_text = safe_substring unparsed_text 0 parsed_text_length in
376 parsed_text, parsed_text_length
379 | GrafiteParser.LNone loc ->
380 let parsed_text, parsed_text_length = text_of_loc loc in
381 [(grafite_status,lexicon_status),parsed_text],
383 | GrafiteParser.LSome (GrafiteAst.Comment (loc, _)) ->
384 let parsed_text, parsed_text_length = text_of_loc loc in
385 let remain_len = String.length unparsed_text - parsed_text_length in
386 let s = String.sub unparsed_text parsed_text_length remain_len in
389 eval_statement buffer guistuff lexicon_status grafite_status user_goal
392 HExtlib.Localized (floc, exn) ->
393 HExtlib.raise_localized_exception ~offset:parsed_text_length floc exn
394 | GrafiteDisambiguator.DisambiguationError (offset,errorll) ->
396 (GrafiteDisambiguator.DisambiguationError
397 (offset+parsed_text_length, errorll))
400 | (statuses,text)::tl ->
401 (statuses,parsed_text ^ text)::tl,parsed_text_length + len
403 | GrafiteParser.LSome (GrafiteAst.Executable (loc, ex)) ->
404 let parsed_text, parsed_text_length = text_of_loc loc in
405 eval_executable buffer guistuff lexicon_status grafite_status user_goal
406 unparsed_text parsed_text script loc ex
408 let fresh_script_id =
412 class script ~(source_view: GSourceView.source_view)
413 ~(mathviewer: MatitaTypes.mathViewer)
419 let buffer = source_view#buffer in
420 let source_buffer = source_view#source_buffer in
421 let initial_statuses =
423 Helm_registry.get_list Helm_registry.string "matita.includes" in
425 CicNotation2.load_notation ~include_paths
426 BuildTimeConf.core_notation_script in
427 let grafite_status = GrafiteSync.init () in
428 grafite_status,lexicon_status
431 val scriptId = fresh_script_id ()
434 mathviewer = mathviewer;
435 urichooser = urichooser;
436 ask_confirmation = ask_confirmation;
437 develcreator = develcreator;
438 filenamedata = (None, None)}
440 method private getFilename =
441 match guistuff.filenamedata with Some f,_ -> f | _ -> assert false
443 method filename = self#getFilename
445 method private ppFilename =
446 match guistuff.filenamedata with
448 | None,_ -> sprintf ".unnamed%d.ma" scriptId
451 ignore (GMain.Timeout.add ~ms:300000
452 ~callback:(fun _ -> self#_saveToBackupFile ();true));
453 ignore (buffer#connect#modified_changed
454 (fun _ -> set_star (Filename.basename self#ppFilename) buffer#modified))
456 val mutable statements = [] (** executed statements *)
458 val mutable history = [ initial_statuses ]
459 (** list of states before having executed statements. Head element of this
460 * list is the current state, last element is the state at the beginning of
462 * Invariant: this list length is 1 + length of statements *)
464 (** goal as seen by the user (i.e. metano corresponding to current tab) *)
465 val mutable userGoal = None
467 (** text mark and tag representing locked part of a script *)
469 buffer#create_mark ~name:"locked" ~left_gravity:true buffer#start_iter
470 val locked_tag = buffer#create_tag [`BACKGROUND "lightblue"; `EDITABLE false]
471 val error_tag = buffer#create_tag [`UNDERLINE `SINGLE; `FOREGROUND "red"]
473 method locked_mark = locked_mark
474 method locked_tag = locked_tag
475 method error_tag = error_tag
477 (* history can't be empty, the invariant above grant that it contains at
478 * least the init grafite_status *)
479 method grafite_status = match history with (s,_)::_ -> s | _ -> assert false
480 method lexicon_status = match history with (_,ss)::_ -> ss | _ -> assert false
482 method private _advance ?statement () =
483 let s = match statement with Some s -> s | None -> self#getFuture in
484 HLog.debug ("evaluating: " ^ first_line s ^ " ...");
485 let (entries, parsed_len) =
487 eval_statement buffer guistuff self#lexicon_status self#grafite_status
488 userGoal self (`Raw s)
489 with End_of_file -> raise Margin
491 let new_statuses, new_statements =
492 let statuses, texts = List.split entries in
495 history <- new_statuses @ history;
496 statements <- new_statements @ statements;
497 let start = buffer#get_iter_at_mark (`MARK locked_mark) in
498 let new_text = String.concat "" (List.rev new_statements) in
499 if statement <> None then
500 buffer#insert ~iter:start new_text
502 if new_text <> String.sub s 0 parsed_len then begin
503 buffer#delete ~start ~stop:(start#copy#forward_chars parsed_len);
504 buffer#insert ~iter:start new_text;
507 self#moveMark (String.length new_text);
508 (* here we need to set the Goal in case we are going to cursor (or to
509 bottom) and we will face a macro *)
510 match self#grafite_status.proof_status with
511 Incomplete_proof p ->
512 userGoal <- Some (Continuationals.Stack.find_goal p.stack)
513 | _ -> userGoal <- None
515 method private _retract offset lexicon_status grafite_status new_statements
518 let cur_grafite_status,cur_lexicon_status =
519 match history with s::_ -> s | [] -> assert false
521 LexiconSync.time_travel ~present:cur_lexicon_status ~past:lexicon_status;
522 GrafiteSync.time_travel ~present:cur_grafite_status ~past:grafite_status;
523 statements <- new_statements;
524 history <- new_history;
525 self#moveMark (- offset)
527 method advance ?statement () =
529 self#_advance ?statement ();
532 | Margin -> self#notify
533 | exc -> self#notify; raise exc
537 let cmp,new_statements,new_history,(grafite_status,lexicon_status) =
538 match statements,history with
539 stat::statements, _::(status::_ as history) ->
540 String.length stat, statements, history, status
541 | [],[_] -> raise Margin
542 | _,_ -> assert false
544 self#_retract cmp lexicon_status grafite_status new_statements
548 | Margin -> self#notify
549 | exc -> self#notify; raise exc
551 method private getFuture =
552 buffer#get_text ~start:(buffer#get_iter_at_mark (`MARK locked_mark))
553 ~stop:buffer#end_iter ()
556 (** @param rel_offset relative offset from current position of locked_mark *)
557 method private moveMark rel_offset =
558 let mark = `MARK locked_mark in
559 let old_insert = buffer#get_iter_at_mark `INSERT in
560 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
561 let current_mark_pos = buffer#get_iter_at_mark mark in
563 match rel_offset with
564 | 0 -> current_mark_pos
565 | n when n > 0 -> current_mark_pos#forward_chars n
566 | n (* when n < 0 *) -> current_mark_pos#backward_chars (abs n)
568 buffer#move_mark mark ~where:new_mark_pos;
569 buffer#apply_tag locked_tag ~start:buffer#start_iter ~stop:new_mark_pos;
570 buffer#move_mark `INSERT old_insert;
571 let mark_position = buffer#get_iter_at_mark mark in
572 if source_view#move_mark_onscreen mark then
574 buffer#move_mark mark mark_position;
575 source_view#scroll_to_mark ~use_align:true ~xalign:1.0 ~yalign:0.1 mark;
577 while Glib.Main.pending () do ignore(Glib.Main.iteration false); done
579 method clean_dirty_lock =
580 let lock_mark_iter = buffer#get_iter_at_mark (`MARK locked_mark) in
581 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
582 buffer#apply_tag locked_tag ~start:buffer#start_iter ~stop:lock_mark_iter
584 val mutable observers = []
586 method addObserver (o: LexiconEngine.status -> GrafiteTypes.status -> unit) =
587 observers <- o :: observers
589 method private notify =
590 let lexicon_status = self#lexicon_status in
591 let grafite_status = self#grafite_status in
592 List.iter (fun o -> o lexicon_status grafite_status) observers
594 method loadFromFile f =
595 buffer#set_text (HExtlib.input_file f);
597 buffer#set_modified false
599 method assignFileName file =
600 let abspath = MatitaMisc.absolute_path file in
601 let devel = MatitamakeLib.development_for_dir (Filename.dirname abspath) in
602 guistuff.filenamedata <- Some abspath, devel
604 method saveToFile () =
605 let oc = open_out self#getFilename in
606 output_string oc (buffer#get_text ~start:buffer#start_iter
607 ~stop:buffer#end_iter ());
609 buffer#set_modified false
611 method private _saveToBackupFile () =
612 if buffer#modified then
614 let f = self#ppFilename ^ "~" in
615 let oc = open_out f in
616 output_string oc (buffer#get_text ~start:buffer#start_iter
617 ~stop:buffer#end_iter ());
619 HLog.debug ("backup " ^ f ^ " saved")
622 method private goto_top =
623 let grafite_status,lexicon_status =
624 let rec last x = function
626 | hd::tl -> last hd tl
628 last (self#grafite_status,self#lexicon_status) history
630 (* FIXME: this is not correct since there is no undo for
631 * library_objects.set_default... *)
632 GrafiteSync.time_travel ~present:self#grafite_status ~past:grafite_status;
633 LexiconSync.time_travel ~present:self#lexicon_status ~past:lexicon_status
635 method private reset_buffer =
637 history <- [ initial_statuses ];
640 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
641 buffer#move_mark (`MARK locked_mark) ~where:buffer#start_iter
645 source_buffer#begin_not_undoable_action ();
646 buffer#delete ~start:buffer#start_iter ~stop:buffer#end_iter;
647 source_buffer#end_not_undoable_action ();
648 buffer#set_modified false;
651 let template = HExtlib.input_file BuildTimeConf.script_template in
652 buffer#insert ~iter:(buffer#get_iter `START) template;
653 guistuff.filenamedata <-
654 (None,MatitamakeLib.development_for_dir (Unix.getcwd ()));
655 buffer#set_modified false;
656 set_star (Filename.basename self#ppFilename) false
658 method goto (pos: [`Top | `Bottom | `Cursor]) () =
659 let old_locked_mark =
661 (buffer#create_mark ~name:"old_locked_mark"
662 ~left_gravity:true (buffer#get_iter_at_mark (`MARK locked_mark))) in
663 let getpos _ = buffer#get_iter_at_mark (`MARK locked_mark) in
664 let getoldpos _ = buffer#get_iter_at_mark old_locked_mark in
665 let dispose_old_locked_mark () = buffer#delete_mark old_locked_mark in
668 dispose_old_locked_mark ();
676 let newpos = getpos () in
677 if (getoldpos ())#compare newpos < 0 then
679 buffer#move_mark old_locked_mark newpos;
684 dispose_old_locked_mark ();
687 | Margin -> dispose_old_locked_mark (); self#notify
688 | exc -> dispose_old_locked_mark (); self#notify; raise exc)
690 let locked_iter () = buffer#get_iter_at_mark (`NAME "locked") in
691 let cursor_iter () = buffer#get_iter_at_mark `INSERT in
694 (buffer#create_mark ~name:"initial_insert"
695 ~left_gravity:true (cursor_iter ())) in
696 let dispose_remember () = buffer#delete_mark remember in
697 let remember_iter () =
698 buffer#get_iter_at_mark (`NAME "initial_insert") in
699 let cmp () = (locked_iter ())#offset - (remember_iter ())#offset in
701 let forward_until_cursor () = (* go forward until locked > cursor *)
704 if cmp () < 0 && (getoldpos ())#compare (getpos ()) < 0
707 buffer#move_mark old_locked_mark (getpos ());
713 let rec back_until_cursor len = (* go backward until locked < cursor *)
715 statements, ((grafite_status,lexicon_status)::_ as history)
717 self#_retract (icmp - len) lexicon_status grafite_status statements
719 | statement::tl1, _::tl2 ->
720 back_until_cursor (len - String.length statement) (tl1,tl2)
721 | _,_ -> assert false
725 if icmp < 0 then (* locked < cursor *)
726 (forward_until_cursor (); self#notify)
727 else if icmp > 0 then (* locked > cursor *)
728 (back_until_cursor icmp (statements,history); self#notify)
729 else (* cursor = locked *)
733 dispose_old_locked_mark ();
735 | Margin -> dispose_remember (); dispose_old_locked_mark (); self#notify
736 | exc -> dispose_remember (); dispose_old_locked_mark ();
737 self#notify; raise exc)
739 method onGoingProof () =
740 match self#grafite_status.proof_status with
741 | No_proof | Proof _ -> false
742 | Incomplete_proof _ -> true
743 | Intermediate _ -> assert false
745 (* method proofStatus = MatitaTypes.get_proof_status self#status *)
746 method proofMetasenv = GrafiteTypes.get_proof_metasenv self#grafite_status
748 method proofContext =
752 GrafiteTypes.get_proof_context self#grafite_status n
754 method proofConclusion =
758 GrafiteTypes.get_proof_conclusion self#grafite_status n
760 method stack = GrafiteTypes.get_stack self#grafite_status
761 method setGoal n = userGoal <- Some n
762 method goal = userGoal
765 let s = self#getFuture in
766 let rec is_there_and_executable lexicon_status s =
767 if Pcre.pmatch ~rex:only_dust_RE s then raise Margin;
768 let lexicon_status,st =
769 GrafiteParser.parse_statement (Ulexing.from_utf8_string s)
770 ~include_paths:(Helm_registry.get_list
771 Helm_registry.string "matita.includes")
775 GrafiteParser.LNone loc
776 | GrafiteParser.LSome (GrafiteAst.Comment (loc,_)) ->
777 let parsed_text_length = snd (HExtlib.loc_of_floc loc) in
778 let remain_len = String.length s - parsed_text_length in
779 let next = String.sub s parsed_text_length remain_len in
780 is_there_and_executable lexicon_status next
781 | GrafiteParser.LSome (GrafiteAst.Executable (loc, ex)) -> false
784 is_there_and_executable self#lexicon_status s
786 | CicNotationParser.Parse_error _ -> false
787 | Margin | End_of_file -> true
791 HLog.debug "script status:";
792 HLog.debug ("history size: " ^ string_of_int (List.length history));
793 HLog.debug (sprintf "%d statements:" (List.length statements));
794 List.iter HLog.debug statements;
795 HLog.debug ("Current file name: " ^
796 (match guistuff.filenamedata with
797 |None,_ -> "[ no name ]"
802 let _script = ref None
804 let script ~source_view ~mathviewer ~urichooser ~develcreator ~ask_confirmation ~set_star ()
807 ~source_view ~mathviewer ~ask_confirmation ~urichooser ~develcreator ~set_star ()
812 let current () = match !_script with None -> assert false | Some s -> s