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
39 exception ActionCancelled
41 let safe_substring s i j =
42 try String.sub s i j with Invalid_argument _ -> assert false
44 let heading_nl_RE = Pcre.regexp "^\\s*\n\\s*"
45 let heading_nl_RE' = Pcre.regexp "^(\\s*\n\\s*)((.|\n)*)"
46 let only_dust_RE = Pcre.regexp "^(\\s|\n|%%[^\n]*\n)*$"
47 let multiline_RE = Pcre.regexp "^\n[^\n]+$"
48 let newline_RE = Pcre.regexp "\n"
51 if Pcre.pmatch ~rex:multiline_RE str then
52 "\n(** " ^ (Pcre.replace ~rex:newline_RE str) ^ " *)"
54 "\n(**\n" ^ str ^ "\n*)"
57 let s = Pcre.replace ~rex:heading_nl_RE s in
59 let nl_pos = String.index s '\n' in
63 (** creates a statement AST for the Goal tactic, e.g. "goal 7" *)
65 let module A = GrafiteAst in
66 let loc = HExtlib.dummy_floc in
67 A.Executable (loc, A.Tactical (loc,
68 A.Tactic (loc, A.Goal (loc, n)),
72 mathviewer:MatitaTypes.mathViewer;
73 urichooser: UriManager.uri list -> UriManager.uri list;
74 ask_confirmation: title:string -> message:string -> [`YES | `NO | `CANCEL];
75 develcreator: containing:string option -> unit;
76 mutable filenamedata: string option * MatitamakeLib.development option
79 let eval_with_engine guistuff lexicon_status grafite_status user_goal
82 let module TAPp = GrafiteAstPp in
83 let parsed_text_length = String.length parsed_text in
84 let initial_space,parsed_text =
86 let pieces = Pcre.extract ~rex:heading_nl_RE' parsed_text in
87 pieces.(1), pieces.(2)
89 Not_found -> "", parsed_text in
90 let inital_space,new_grafite_status,new_lexicon_status,new_status_and_text_list' =
91 (* the code commented out adds the "select" command if needed *)
92 initial_space,grafite_status,lexicon_status,[] in
94 match st with TA.Executable (loc,ex) -> loc, ex | _ -> assert false in
95 match grafite_status.proof_status with
96 | Incomplete_proof { stack = stack }
97 when not (List.mem user_goal (Continuationals.head_goals stack)) ->
100 ~do_heavy_checks:true grafite_status (goal_ast user_goal)
102 let initial_space = if initial_space = "" then "\n" else initial_space
104 "\n", grafite_status,
106 initial_space ^ TAPp.pp_tactical (TA.Select (loc, [user_goal])) ]
107 | _ -> initial_space,grafite_status,[] in *)
108 let enriched_history_fragment =
109 MatitaEngine.eval_ast ~do_heavy_checks:true
110 new_lexicon_status new_grafite_status st
112 let _,new_text_list_rev =
113 let module DTE = DisambiguateTypes.Environment in
114 let module UM = UriManager in
116 fun (_,alias) (initial_space,acc) ->
118 None -> initial_space,initial_space::acc
119 | Some (k,((v,_) as value)) ->
122 if initial_space = "" then "\n" else initial_space
125 DisambiguatePp.pp_environment
126 (DisambiguateTypes.Environment.add k value
127 DisambiguateTypes.Environment.empty)
130 ) enriched_history_fragment (initial_space,[]) in
131 let new_text_list_rev =
132 match enriched_history_fragment,new_text_list_rev with
133 (_,None)::_, initial_space::tl -> (initial_space ^ parsed_text)::tl
134 | _,_ -> assert false
138 List.combine (fst (List.split enriched_history_fragment)) new_text_list_rev
140 Invalid_argument _ -> assert false
142 res,parsed_text_length
144 let wrap_with_developments guistuff f arg =
148 | DependenciesParser.UnableToInclude what
149 | LexiconEngine.IncludedFileNotCompiled what
150 | GrafiteEngine.IncludedFileNotCompiled what as exc ->
151 let compile_needed_and_go_on d =
152 let target = Pcre.replace ~pat:"lexicon$" ~templ:"moo" what in
154 while Glib.Main.pending () do ignore(Glib.Main.iteration false); done
156 if not(MatitamakeLib.build_development_in_bg ~target refresh_cb d) then
161 let do_nothing () = raise ActionCancelled in
162 let handle_with_devel d =
163 let name = MatitamakeLib.name_for_development d in
164 let title = "Unable to include " ^ what in
166 what ^ " is handled by development <b>" ^ name ^ "</b>.\n\n" ^
167 "<i>Should I compile it and Its dependencies?</i>"
169 (match guistuff.ask_confirmation ~title ~message with
170 | `YES -> compile_needed_and_go_on d
172 | `CANCEL -> do_nothing ())
174 let handle_without_devel filename =
175 let title = "Unable to include " ^ what in
177 what ^ " is <b>not</b> handled by a development.\n" ^
178 "All dependencies are automatically solved for a development.\n\n" ^
179 "<i>Do you want to set up a development?</i>"
181 (match guistuff.ask_confirmation ~title ~message with
185 guistuff.develcreator ~containing:(Some (Filename.dirname f))
186 | None -> guistuff.develcreator ~containing:None);
189 | `CANCEL -> do_nothing())
191 match guistuff.filenamedata with
192 | None,None -> handle_without_devel None
193 | None,Some d -> handle_with_devel d
195 match MatitamakeLib.development_for_dir (Filename.dirname f) with
196 | None -> handle_without_devel (Some f)
197 | Some d -> handle_with_devel d
201 guistuff lexicon_status grafite_status user_goal parsed_text st
203 wrap_with_developments guistuff
205 guistuff lexicon_status grafite_status user_goal parsed_text) st
208 let pp_eager_statement_ast =
209 GrafiteAstPp.pp_statement ~term_pp:CicNotationPp.pp_term
210 ~lazy_term_pp:(fun _ -> assert false) ~obj_pp:(fun _ -> assert false)
212 let rec eval_macro include_paths (buffer : GText.buffer) guistuff lexicon_status grafite_status user_goal unparsed_text parsed_text script mac =
213 let module TAPp = GrafiteAstPp in
214 let module MQ = MetadataQuery in
215 let module MDB = LibraryDb in
216 let module CTC = CicTypeChecker in
217 let module CU = CicUniv in
218 (* no idea why ocaml wants this *)
219 let parsed_text_length = String.length parsed_text in
220 let dbd = LibraryDb.instance () in
221 (* XXX use a real CIC -> string pretty printer *)
222 let pp_macro = TAPp.pp_macro ~term_pp:CicPp.ppterm in
225 | TA.WMatch (loc, term) ->
226 let l = Whelp.match_term ~dbd term in
228 MatitaMisc.strip_suffix ~suffix:"."
229 (HExtlib.trim_blanks unparsed_text)
231 let entry = `Whelp (query_url, l) in
232 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
233 [], parsed_text_length
234 | TA.WInstance (loc, term) ->
235 let l = Whelp.instance ~dbd term in
236 let entry = `Whelp (pp_macro (TA.WInstance (loc, term)), l) in
237 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
238 [], parsed_text_length
239 | TA.WLocate (loc, s) ->
240 let l = Whelp.locate ~dbd s in
241 let entry = `Whelp (pp_macro (TA.WLocate (loc, s)), l) in
242 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
243 [], parsed_text_length
244 | TA.WElim (loc, term) ->
247 | Cic.MutInd (uri,n,_) -> UriManager.uri_of_uriref uri n None
248 | _ -> failwith "Not a MutInd"
250 let l = Whelp.elim ~dbd uri in
251 let entry = `Whelp (pp_macro (TA.WElim (loc, term)), l) in
252 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
253 [], parsed_text_length
254 | TA.WHint (loc, term) ->
255 let s = ((None,[0,[],term], Cic.Meta (0,[]) ,term),0) in
256 let l = List.map fst (MQ.experimental_hint ~dbd s) in
257 let entry = `Whelp (pp_macro (TA.WHint (loc, term)), l) in
258 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
259 [], parsed_text_length
265 | None -> raise NoUnfinishedProof
267 let proof = GrafiteTypes.get_current_proof grafite_status in
268 let proof_status = proof,user_goal' in
269 let l = List.map fst (MQ.experimental_hint ~dbd proof_status) in
270 let selected = guistuff.urichooser l in
272 | [] -> [], parsed_text_length
274 let suri = UriManager.string_of_uri uri in
276 TA.Executable (loc, (TA.Tactical (loc,
278 TA.Apply (loc, CicNotationPt.Uri (suri, None))),
279 Some (TA.Dot loc)))) in
281 comment parsed_text ^ "\n" ^
282 pp_eager_statement_ast (ast HExtlib.dummy_floc) in
283 let text_len = String.length text in
284 let loc = HExtlib.floc_of_loc (0,text_len) in
285 let statement = `Ast (GrafiteParser.LSome (ast loc),text) in
286 let res,_parsed_text_len =
287 eval_statement include_paths buffer guistuff lexicon_status
288 grafite_status user_goal script statement
290 (* we need to replace all the parsed_text *)
291 res,String.length parsed_text
294 "The result of the urichooser should be only 1 uri, not:\n";
296 fun u -> HLog.error (UriManager.string_of_uri u ^ "\n")
299 | TA.Check (_,term) ->
300 let metasenv = GrafiteTypes.get_proof_metasenv grafite_status in
304 | Some n -> GrafiteTypes.get_proof_context grafite_status n in
305 let ty,_ = CTC.type_of_aux' metasenv context term CicUniv.empty_ugraph in
306 let t_and_ty = Cic.Cast (term,ty) in
307 guistuff.mathviewer#show_entry (`Cic (t_and_ty,metasenv));
308 [], parsed_text_length
310 | TA.Quit _ -> failwith "not implemented"
311 | TA.Print (_,kind) -> failwith "not implemented"
312 | TA.Search_pat (_, search_kind, str) -> failwith "not implemented"
313 | TA.Search_term (_, search_kind, term) -> failwith "not implemented"
315 and eval_executable include_paths (buffer : GText.buffer) guistuff lexicon_status grafite_status user_goal unparsed_text parsed_text script loc ex
317 let module TAPp = GrafiteAstPp in
318 let module MD = GrafiteDisambiguator in
319 let module ML = MatitaMisc in
323 | TA.Command (_,TA.Set (_,"baseuri",u)) ->
324 if not (GrafiteMisc.is_empty u) then
326 guistuff.ask_confirmation
327 ~title:"Baseuri redefinition"
329 "Baseuri " ^ u ^ " already exists.\n" ^
330 "Do you want to redefine the corresponding "^
331 "part of the library?")
334 let basedir = Helm_registry.get "matita.basedir" in
335 LibraryClean.clean_baseuris ~basedir [u]
337 | `CANCEL -> raise MatitaTypes.Cancel)
341 guistuff lexicon_status grafite_status user_goal parsed_text
342 (TA.Executable (loc, ex))
344 MatitaTypes.Cancel -> [], 0
345 | GrafiteEngine.Macro (_loc,lazy_macro) ->
349 | Some n -> GrafiteTypes.get_proof_context grafite_status n in
350 let grafite_status,macro = lazy_macro context in
351 eval_macro include_paths buffer guistuff lexicon_status grafite_status
352 user_goal unparsed_text parsed_text script macro
354 and eval_statement include_paths (buffer : GText.buffer) guistuff lexicon_status
355 grafite_status user_goal script statement
357 let (lexicon_status,st), unparsed_text =
360 if Pcre.pmatch ~rex:only_dust_RE text then raise Margin;
362 wrap_with_developments guistuff
363 (GrafiteParser.parse_statement
364 (Ulexing.from_utf8_string text) ~include_paths) lexicon_status
367 | `Ast (st, text) -> (lexicon_status, st), text
369 let text_of_loc loc =
370 let parsed_text_length = snd (HExtlib.loc_of_floc loc) in
371 let parsed_text = safe_substring unparsed_text 0 parsed_text_length in
372 parsed_text, parsed_text_length
375 | GrafiteParser.LNone loc ->
376 let parsed_text, parsed_text_length = text_of_loc loc in
377 [(grafite_status,lexicon_status),parsed_text],
379 | GrafiteParser.LSome (GrafiteAst.Comment (loc, _)) ->
380 let parsed_text, parsed_text_length = text_of_loc loc in
381 let remain_len = String.length unparsed_text - parsed_text_length in
382 let s = String.sub unparsed_text parsed_text_length remain_len in
385 eval_statement include_paths buffer guistuff lexicon_status
386 grafite_status user_goal script (`Raw s)
388 HExtlib.Localized (floc, exn) ->
389 HExtlib.raise_localized_exception ~offset:parsed_text_length floc exn
390 | GrafiteDisambiguator.DisambiguationError (offset,errorll) ->
392 (GrafiteDisambiguator.DisambiguationError
393 (offset+parsed_text_length, errorll))
396 | (statuses,text)::tl ->
397 (statuses,parsed_text ^ text)::tl,parsed_text_length + len
399 | GrafiteParser.LSome (GrafiteAst.Executable (loc, ex)) ->
400 let parsed_text, parsed_text_length = text_of_loc loc in
401 eval_executable include_paths buffer guistuff lexicon_status
402 grafite_status user_goal unparsed_text parsed_text script loc ex
404 let fresh_script_id =
408 class script ~(source_view: GSourceView.source_view)
409 ~(mathviewer: MatitaTypes.mathViewer)
415 let buffer = source_view#buffer in
416 let source_buffer = source_view#source_buffer in
417 let initial_statuses =
418 (* these include_paths are used only to load the initial notation *)
420 Helm_registry.get_list Helm_registry.string "matita.includes" in
422 CicNotation2.load_notation ~include_paths
423 BuildTimeConf.core_notation_script in
424 let grafite_status = GrafiteSync.init () in
425 grafite_status,lexicon_status
428 val mutable include_paths =
429 Helm_registry.get_list Helm_registry.string "matita.includes"
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 include_paths buffer guistuff self#lexicon_status
488 self#grafite_status 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 dirname = Filename.dirname abspath in
602 let devel = MatitamakeLib.development_for_dir dirname in
603 guistuff.filenamedata <- Some abspath, devel;
605 match MatitamakeLib.development_for_dir dirname with
607 | Some devel -> [MatitamakeLib.root_for_development devel] in
609 include_ @ (Helm_registry.get_list Helm_registry.string "matita.includes")
611 include_paths <- include_
613 method saveToFile () =
614 let oc = open_out self#getFilename in
615 output_string oc (buffer#get_text ~start:buffer#start_iter
616 ~stop:buffer#end_iter ());
618 buffer#set_modified false
620 method private _saveToBackupFile () =
621 if buffer#modified then
623 let f = self#ppFilename ^ "~" in
624 let oc = open_out f in
625 output_string oc (buffer#get_text ~start:buffer#start_iter
626 ~stop:buffer#end_iter ());
628 HLog.debug ("backup " ^ f ^ " saved")
631 method private goto_top =
632 let grafite_status,lexicon_status =
633 let rec last x = function
635 | hd::tl -> last hd tl
637 last (self#grafite_status,self#lexicon_status) history
639 (* FIXME: this is not correct since there is no undo for
640 * library_objects.set_default... *)
641 GrafiteSync.time_travel ~present:self#grafite_status ~past:grafite_status;
642 LexiconSync.time_travel ~present:self#lexicon_status ~past:lexicon_status
644 method private reset_buffer =
646 history <- [ initial_statuses ];
649 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
650 buffer#move_mark (`MARK locked_mark) ~where:buffer#start_iter
654 source_buffer#begin_not_undoable_action ();
655 buffer#delete ~start:buffer#start_iter ~stop:buffer#end_iter;
656 source_buffer#end_not_undoable_action ();
657 buffer#set_modified false;
660 let template = HExtlib.input_file BuildTimeConf.script_template in
661 buffer#insert ~iter:(buffer#get_iter `START) template;
662 let development = MatitamakeLib.development_for_dir (Unix.getcwd ()) in
663 guistuff.filenamedata <- (None,development);
665 match development with
667 | Some devel -> [MatitamakeLib.root_for_development devel ]
670 include_ @ (Helm_registry.get_list Helm_registry.string "matita.includes")
672 include_paths <- include_ ;
673 buffer#set_modified false;
674 set_star (Filename.basename self#ppFilename) false
676 method goto (pos: [`Top | `Bottom | `Cursor]) () =
677 let old_locked_mark =
679 (buffer#create_mark ~name:"old_locked_mark"
680 ~left_gravity:true (buffer#get_iter_at_mark (`MARK locked_mark))) in
681 let getpos _ = buffer#get_iter_at_mark (`MARK locked_mark) in
682 let getoldpos _ = buffer#get_iter_at_mark old_locked_mark in
683 let dispose_old_locked_mark () = buffer#delete_mark old_locked_mark in
686 dispose_old_locked_mark ();
694 let newpos = getpos () in
695 if (getoldpos ())#compare newpos < 0 then
697 buffer#move_mark old_locked_mark newpos;
702 dispose_old_locked_mark ();
705 | Margin -> dispose_old_locked_mark (); self#notify
706 | exc -> dispose_old_locked_mark (); self#notify; raise exc)
708 let locked_iter () = buffer#get_iter_at_mark (`NAME "locked") in
709 let cursor_iter () = buffer#get_iter_at_mark `INSERT in
712 (buffer#create_mark ~name:"initial_insert"
713 ~left_gravity:true (cursor_iter ())) in
714 let dispose_remember () = buffer#delete_mark remember in
715 let remember_iter () =
716 buffer#get_iter_at_mark (`NAME "initial_insert") in
717 let cmp () = (locked_iter ())#offset - (remember_iter ())#offset in
719 let forward_until_cursor () = (* go forward until locked > cursor *)
722 if cmp () < 0 && (getoldpos ())#compare (getpos ()) < 0
725 buffer#move_mark old_locked_mark (getpos ());
731 let rec back_until_cursor len = (* go backward until locked < cursor *)
733 statements, ((grafite_status,lexicon_status)::_ as history)
735 self#_retract (icmp - len) lexicon_status grafite_status statements
737 | statement::tl1, _::tl2 ->
738 back_until_cursor (len - String.length statement) (tl1,tl2)
739 | _,_ -> assert false
743 if icmp < 0 then (* locked < cursor *)
744 (forward_until_cursor (); self#notify)
745 else if icmp > 0 then (* locked > cursor *)
746 (back_until_cursor icmp (statements,history); self#notify)
747 else (* cursor = locked *)
751 dispose_old_locked_mark ();
753 | Margin -> dispose_remember (); dispose_old_locked_mark (); self#notify
754 | exc -> dispose_remember (); dispose_old_locked_mark ();
755 self#notify; raise exc)
757 method onGoingProof () =
758 match self#grafite_status.proof_status with
759 | No_proof | Proof _ -> false
760 | Incomplete_proof _ -> true
761 | Intermediate _ -> assert false
763 (* method proofStatus = MatitaTypes.get_proof_status self#status *)
764 method proofMetasenv = GrafiteTypes.get_proof_metasenv self#grafite_status
766 method proofContext =
769 | Some n -> GrafiteTypes.get_proof_context self#grafite_status n
771 method proofConclusion =
775 GrafiteTypes.get_proof_conclusion self#grafite_status n
777 method stack = GrafiteTypes.get_stack self#grafite_status
778 method setGoal n = userGoal <- n
779 method goal = userGoal
782 let s = self#getFuture in
783 let rec is_there_only_comments lexicon_status s =
784 if Pcre.pmatch ~rex:only_dust_RE s then raise Margin;
785 let lexicon_status,st =
786 GrafiteParser.parse_statement (Ulexing.from_utf8_string s)
787 ~include_paths lexicon_status
790 | GrafiteParser.LSome (GrafiteAst.Comment (loc,_)) ->
791 let parsed_text_length = snd (HExtlib.loc_of_floc loc) in
792 let remain_len = String.length s - parsed_text_length in
793 let next = String.sub s parsed_text_length remain_len in
794 is_there_only_comments lexicon_status next
795 | GrafiteParser.LNone _
796 | GrafiteParser.LSome (GrafiteAst.Executable _) -> false
799 is_there_only_comments self#lexicon_status s
801 | CicNotationParser.Parse_error _ -> false
802 | Margin | End_of_file -> true
806 HLog.debug "script status:";
807 HLog.debug ("history size: " ^ string_of_int (List.length history));
808 HLog.debug (sprintf "%d statements:" (List.length statements));
809 List.iter HLog.debug statements;
810 HLog.debug ("Current file name: " ^
811 (match guistuff.filenamedata with
812 |None,_ -> "[ no name ]"
817 let _script = ref None
819 let script ~source_view ~mathviewer ~urichooser ~develcreator ~ask_confirmation ~set_star ()
822 ~source_view ~mathviewer ~ask_confirmation ~urichooser ~develcreator ~set_star ()
827 let current () = match !_script with None -> assert false | Some s -> s