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 of string
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*)"
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
80 skipped_txt nonskipped_txt st
82 let module TAPp = GrafiteAstPp in
83 let module DTE = DisambiguateTypes.Environment in
84 let module DP = DisambiguatePp in
85 let parsed_text_length =
86 String.length skipped_txt + String.length nonskipped_txt
88 let text = skipped_txt ^ nonskipped_txt in
89 let prefix_len = MatitaGtkMisc.utf8_string_length skipped_txt in
90 let enriched_history_fragment =
91 MatitaEngine.eval_ast ~do_heavy_checks:true
92 lexicon_status grafite_status (text,prefix_len,st)
94 let enriched_history_fragment = List.rev enriched_history_fragment in
98 (fun (acc, to_prepend) (status,alias) ->
100 | None -> (status,to_prepend ^ nonskipped_txt)::acc,""
101 | Some (k,((v,_) as value)) ->
102 let newtxt = DP.pp_environment (DTE.add k value DTE.empty) in
103 (status,to_prepend ^ newtxt ^ "\n")::acc, "")
104 ([],skipped_txt) enriched_history_fragment
106 res,parsed_text_length
108 let wrap_with_developments guistuff f arg =
112 | DependenciesParser.UnableToInclude what
113 | LexiconEngine.IncludedFileNotCompiled what
114 | GrafiteEngine.IncludedFileNotCompiled what as exc ->
115 let compile_needed_and_go_on d =
116 let target = Pcre.replace ~pat:"lexicon$" ~templ:"moo" what in
118 while Glib.Main.pending () do ignore(Glib.Main.iteration false); done
120 if not(MatitamakeLib.build_development_in_bg ~target refresh_cb d) then
125 let do_nothing () = raise (ActionCancelled "Inclusion not performed") in
126 let handle_with_devel d =
127 let name = MatitamakeLib.name_for_development d in
128 let title = "Unable to include " ^ what in
130 what ^ " is handled by development <b>" ^ name ^ "</b>.\n\n" ^
131 "<i>Should I compile it and Its dependencies?</i>"
133 (match guistuff.ask_confirmation ~title ~message with
134 | `YES -> compile_needed_and_go_on d
136 | `CANCEL -> do_nothing ())
138 let handle_without_devel filename =
139 let title = "Unable to include " ^ what in
141 what ^ " is <b>not</b> handled by a development.\n" ^
142 "All dependencies are automatically solved for a development.\n\n" ^
143 "<i>Do you want to set up a development?</i>"
145 (match guistuff.ask_confirmation ~title ~message with
149 guistuff.develcreator ~containing:(Some (Filename.dirname f))
150 | None -> guistuff.develcreator ~containing:None);
153 | `CANCEL -> do_nothing())
155 match guistuff.filenamedata with
156 | None,None -> handle_without_devel None
157 | None,Some d -> handle_with_devel d
159 match MatitamakeLib.development_for_dir (Filename.dirname f) with
160 | None -> handle_without_devel (Some f)
161 | Some d -> handle_with_devel d
165 guistuff lexicon_status grafite_status user_goal
166 skipped_txt nonskipped_txt st
168 wrap_with_developments guistuff
170 guistuff lexicon_status grafite_status user_goal
171 skipped_txt nonskipped_txt) st
174 let pp_eager_statement_ast =
175 GrafiteAstPp.pp_statement ~term_pp:CicNotationPp.pp_term
176 ~lazy_term_pp:(fun _ -> assert false) ~obj_pp:(fun _ -> assert false)
178 let rec eval_macro include_paths (buffer : GText.buffer) guistuff lexicon_status grafite_status user_goal unparsed_text parsed_text script mac =
179 let module TAPp = GrafiteAstPp in
180 let module MQ = MetadataQuery in
181 let module MDB = LibraryDb in
182 let module CTC = CicTypeChecker in
183 let module CU = CicUniv in
184 (* no idea why ocaml wants this *)
185 let parsed_text_length = String.length parsed_text in
186 let dbd = LibraryDb.instance () in
188 let f t = ProofEngineReduction.replace
189 ~equality:(fun _ t -> match t with Cic.Meta _ -> true | _ -> false)
190 ~what:[()] ~with_what:[Cic.Implicit None] ~where:t
192 let metasenv = GrafiteTypes.get_proof_metasenv grafite_status in
195 ApplyTransformation.txt_of_cic_term max_int metasenv [] (f x))
199 | TA.WMatch (loc, term) ->
200 let l = Whelp.match_term ~dbd term in
201 let entry = `Whelp (pp_macro mac, l) in
202 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
203 [], parsed_text_length
204 | TA.WInstance (loc, term) ->
205 let l = Whelp.instance ~dbd term in
206 let entry = `Whelp (pp_macro mac, l) in
207 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
208 [], parsed_text_length
209 | TA.WLocate (loc, s) ->
210 let l = Whelp.locate ~dbd s in
211 let entry = `Whelp (pp_macro mac, l) in
212 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
213 [], parsed_text_length
214 | TA.WElim (loc, term) ->
217 | Cic.MutInd (uri,n,_) -> UriManager.uri_of_uriref uri n None
218 | _ -> failwith "Not a MutInd"
220 let l = Whelp.elim ~dbd uri in
221 let entry = `Whelp (pp_macro mac, l) in
222 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
223 [], parsed_text_length
224 | TA.WHint (loc, term) ->
225 let s = ((None,[0,[],term], Cic.Meta (0,[]) ,term),0) in
226 let l = List.map fst (MQ.experimental_hint ~dbd s) in
227 let entry = `Whelp (pp_macro mac, l) in
228 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
229 [], parsed_text_length
235 | None -> raise NoUnfinishedProof
237 let proof = GrafiteTypes.get_current_proof grafite_status in
238 let proof_status = proof,user_goal' in
239 let l = List.map fst (MQ.experimental_hint ~dbd proof_status) in
240 let selected = guistuff.urichooser l in
242 | [] -> [], parsed_text_length
244 let suri = UriManager.string_of_uri uri in
246 TA.Executable (loc, (TA.Tactical (loc,
248 TA.Apply (loc, CicNotationPt.Uri (suri, None))),
249 Some (TA.Dot loc)))) in
251 comment parsed_text ^ "\n" ^
252 pp_eager_statement_ast (ast HExtlib.dummy_floc) in
253 let text_len = MatitaGtkMisc.utf8_string_length text in
254 let loc = HExtlib.floc_of_loc (0,text_len) in
255 let statement = `Ast (GrafiteParser.LSome (ast loc),text) in
256 let res,_parsed_text_len =
257 eval_statement include_paths buffer guistuff lexicon_status
258 grafite_status user_goal script statement
260 (* we need to replace all the parsed_text *)
261 res,String.length parsed_text
264 "The result of the urichooser should be only 1 uri, not:\n";
266 fun u -> HLog.error (UriManager.string_of_uri u ^ "\n")
269 | TA.Check (_,term) ->
270 let metasenv = GrafiteTypes.get_proof_metasenv grafite_status in
274 | Some n -> GrafiteTypes.get_proof_context grafite_status n in
275 let ty,_ = CTC.type_of_aux' metasenv context term CicUniv.empty_ugraph in
276 let t_and_ty = Cic.Cast (term,ty) in
277 guistuff.mathviewer#show_entry (`Cic (t_and_ty,metasenv));
278 [], parsed_text_length
280 | TA.Quit _ -> failwith "not implemented"
281 | TA.Print (_,kind) -> failwith "not implemented"
282 | TA.Search_pat (_, search_kind, str) -> failwith "not implemented"
283 | TA.Search_term (_, search_kind, term) -> failwith "not implemented"
285 and eval_executable include_paths (buffer : GText.buffer) guistuff
286 lexicon_status grafite_status user_goal unparsed_text skipped_txt nonskipped_txt
289 let module TAPp = GrafiteAstPp in
290 let module MD = GrafiteDisambiguator in
291 let module ML = MatitaMisc in
295 | TA.Command (_,TA.Set (_,"baseuri",u)) ->
296 if Http_getter_storage.is_read_only u then
297 raise (ActionCancelled ("baseuri " ^ u ^ " is readonly"));
298 if not (Http_getter_storage.is_empty u) then
300 guistuff.ask_confirmation
301 ~title:"Baseuri redefinition"
303 "Baseuri " ^ u ^ " already exists.\n" ^
304 "Do you want to redefine the corresponding "^
305 "part of the library?")
307 | `YES -> LibraryClean.clean_baseuris [u]
309 | `CANCEL -> raise MatitaTypes.Cancel)
313 guistuff lexicon_status grafite_status user_goal skipped_txt nonskipped_txt
314 (TA.Executable (loc, ex))
316 MatitaTypes.Cancel -> [], 0
317 | GrafiteEngine.Macro (_loc,lazy_macro) ->
321 | Some n -> GrafiteTypes.get_proof_context grafite_status n in
322 let grafite_status,macro = lazy_macro context in
323 eval_macro include_paths buffer guistuff lexicon_status grafite_status
324 user_goal unparsed_text (skipped_txt ^ nonskipped_txt) script macro
326 and eval_statement include_paths (buffer : GText.buffer) guistuff lexicon_status
327 grafite_status user_goal script statement
329 let (lexicon_status,st), unparsed_text =
332 if Pcre.pmatch ~rex:only_dust_RE text then raise Margin;
334 wrap_with_developments guistuff
335 (GrafiteParser.parse_statement
336 (Ulexing.from_utf8_string text) ~include_paths) lexicon_status
339 | `Ast (st, text) -> (lexicon_status, st), text
341 let text_of_loc floc =
342 let nonskipped_txt,_ = MatitaGtkMisc.utf8_parsed_text unparsed_text floc in
343 let start, stop = HExtlib.loc_of_floc floc in
344 let floc = HExtlib.floc_of_loc (0, start) in
345 let skipped_txt,_ = MatitaGtkMisc.utf8_parsed_text unparsed_text floc in
346 let floc = HExtlib.floc_of_loc (0, stop) in
347 let txt,len = MatitaGtkMisc.utf8_parsed_text unparsed_text floc in
348 txt,nonskipped_txt,skipped_txt,len
351 | GrafiteParser.LNone loc ->
352 let parsed_text, _, _, parsed_text_length = text_of_loc loc in
353 [(grafite_status,lexicon_status),parsed_text],
355 | GrafiteParser.LSome (GrafiteAst.Comment (loc, _)) ->
356 let parsed_text, _, _, parsed_text_length = text_of_loc loc in
357 let remain_len = String.length unparsed_text - parsed_text_length in
358 let s = String.sub unparsed_text parsed_text_length remain_len in
361 eval_statement include_paths buffer guistuff lexicon_status
362 grafite_status user_goal script (`Raw s)
364 HExtlib.Localized (floc, exn) ->
365 HExtlib.raise_localized_exception
366 ~offset:(MatitaGtkMisc.utf8_string_length parsed_text) floc exn
367 | GrafiteDisambiguator.DisambiguationError (offset,errorll) ->
369 (GrafiteDisambiguator.DisambiguationError
370 (offset+parsed_text_length, errorll))
373 | (statuses,text)::tl ->
374 (statuses,parsed_text ^ text)::tl,parsed_text_length + len
376 | GrafiteParser.LSome (GrafiteAst.Executable (loc, ex)) ->
377 let _, nonskipped, skipped, parsed_text_length =
380 eval_executable include_paths buffer guistuff lexicon_status
381 grafite_status user_goal unparsed_text skipped nonskipped script ex loc
383 let fresh_script_id =
387 class script ~(source_view: GSourceView.source_view)
388 ~(mathviewer: MatitaTypes.mathViewer)
394 let buffer = source_view#buffer in
395 let source_buffer = source_view#source_buffer in
396 let initial_statuses () =
397 (* these include_paths are used only to load the initial notation *)
399 Helm_registry.get_list Helm_registry.string "matita.includes" in
401 CicNotation2.load_notation ~include_paths
402 BuildTimeConf.core_notation_script in
403 let grafite_status = GrafiteSync.init () in
404 grafite_status,lexicon_status
407 val mutable include_paths =
408 Helm_registry.get_list Helm_registry.string "matita.includes"
410 val scriptId = fresh_script_id ()
413 mathviewer = mathviewer;
414 urichooser = urichooser;
415 ask_confirmation = ask_confirmation;
416 develcreator = develcreator;
417 filenamedata = (None, None)}
419 method private getFilename =
420 match guistuff.filenamedata with Some f,_ -> f | _ -> assert false
422 method filename = self#getFilename
424 method private ppFilename =
425 match guistuff.filenamedata with
427 | None,_ -> sprintf ".unnamed%d.ma" scriptId
430 ignore (GMain.Timeout.add ~ms:300000
431 ~callback:(fun _ -> self#_saveToBackupFile ();true));
432 ignore (buffer#connect#modified_changed
433 (fun _ -> set_star (Filename.basename self#ppFilename) buffer#modified))
435 val mutable statements = [] (** executed statements *)
437 val mutable history = [ initial_statuses () ]
438 (** list of states before having executed statements. Head element of this
439 * list is the current state, last element is the state at the beginning of
441 * Invariant: this list length is 1 + length of statements *)
443 (** goal as seen by the user (i.e. metano corresponding to current tab) *)
444 val mutable userGoal = None
446 (** text mark and tag representing locked part of a script *)
448 buffer#create_mark ~name:"locked" ~left_gravity:true buffer#start_iter
449 val locked_tag = buffer#create_tag [`BACKGROUND "lightblue"; `EDITABLE false]
450 val error_tag = buffer#create_tag [`UNDERLINE `SINGLE; `FOREGROUND "red"]
452 method locked_mark = locked_mark
453 method locked_tag = locked_tag
454 method error_tag = error_tag
456 (* history can't be empty, the invariant above grant that it contains at
457 * least the init grafite_status *)
458 method grafite_status = match history with (s,_)::_ -> s | _ -> assert false
459 method lexicon_status = match history with (_,ss)::_ -> ss | _ -> assert false
461 method private _advance ?statement () =
462 let s = match statement with Some s -> s | None -> self#getFuture in
463 HLog.debug ("evaluating: " ^ first_line s ^ " ...");
464 let (entries, parsed_len) =
466 eval_statement include_paths buffer guistuff self#lexicon_status
467 self#grafite_status userGoal self (`Raw s)
468 with End_of_file -> raise Margin
470 let new_statuses, new_statements =
471 let statuses, texts = List.split entries in
474 history <- new_statuses @ history;
475 statements <- new_statements @ statements;
476 let start = buffer#get_iter_at_mark (`MARK locked_mark) in
477 let new_text = String.concat "" (List.rev new_statements) in
478 if statement <> None then
479 buffer#insert ~iter:start new_text
481 let parsed_text = String.sub s 0 parsed_len in
482 if new_text <> parsed_text then begin
483 let stop = start#copy#forward_chars (Glib.Utf8.length parsed_text) in
484 buffer#delete ~start ~stop;
485 buffer#insert ~iter:start new_text;
488 self#moveMark (Glib.Utf8.length new_text);
489 (* here we need to set the Goal in case we are going to cursor (or to
490 bottom) and we will face a macro *)
491 match self#grafite_status.proof_status with
492 Incomplete_proof p ->
494 (try Some (Continuationals.Stack.find_goal p.stack)
495 with Failure _ -> None)
496 | _ -> userGoal <- None
498 method private _retract offset lexicon_status grafite_status new_statements
501 let cur_grafite_status,cur_lexicon_status =
502 match history with s::_ -> s | [] -> assert false
504 LexiconSync.time_travel ~present:cur_lexicon_status ~past:lexicon_status;
505 GrafiteSync.time_travel ~present:cur_grafite_status ~past:grafite_status;
506 statements <- new_statements;
507 history <- new_history;
508 self#moveMark (- offset)
510 method advance ?statement () =
512 self#_advance ?statement ();
515 | Margin -> self#notify
516 | Not_found -> assert false
517 | exc -> self#notify; raise exc
521 let cmp,new_statements,new_history,(grafite_status,lexicon_status) =
522 match statements,history with
523 stat::statements, _::(status::_ as history) ->
524 assert (Glib.Utf8.validate stat);
525 Glib.Utf8.length stat, statements, history, status
526 | [],[_] -> raise Margin
527 | _,_ -> assert false
529 self#_retract cmp lexicon_status grafite_status new_statements
533 | Margin -> self#notify
534 | exc -> self#notify; raise exc
536 method private getFuture =
537 buffer#get_text ~start:(buffer#get_iter_at_mark (`MARK locked_mark))
538 ~stop:buffer#end_iter ()
541 (** @param rel_offset relative offset from current position of locked_mark *)
542 method private moveMark rel_offset =
543 let mark = `MARK locked_mark in
544 let old_insert = buffer#get_iter_at_mark `INSERT in
545 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
546 let current_mark_pos = buffer#get_iter_at_mark mark in
548 match rel_offset with
549 | 0 -> current_mark_pos
550 | n when n > 0 -> current_mark_pos#forward_chars n
551 | n (* when n < 0 *) -> current_mark_pos#backward_chars (abs n)
553 buffer#move_mark mark ~where:new_mark_pos;
554 buffer#apply_tag locked_tag ~start:buffer#start_iter ~stop:new_mark_pos;
555 buffer#move_mark `INSERT old_insert;
556 let mark_position = buffer#get_iter_at_mark mark in
557 if source_view#move_mark_onscreen mark then
559 buffer#move_mark mark mark_position;
560 source_view#scroll_to_mark ~use_align:true ~xalign:1.0 ~yalign:0.1 mark;
562 while Glib.Main.pending () do ignore(Glib.Main.iteration false); done
564 method clean_dirty_lock =
565 let lock_mark_iter = buffer#get_iter_at_mark (`MARK locked_mark) in
566 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
567 buffer#apply_tag locked_tag ~start:buffer#start_iter ~stop:lock_mark_iter
569 val mutable observers = []
571 method addObserver (o: LexiconEngine.status -> GrafiteTypes.status -> unit) =
572 observers <- o :: observers
574 method private notify =
575 let lexicon_status = self#lexicon_status in
576 let grafite_status = self#grafite_status in
577 List.iter (fun o -> o lexicon_status grafite_status) observers
579 method loadFromFile f =
580 buffer#set_text (HExtlib.input_file f);
582 buffer#set_modified false
584 method assignFileName file =
585 let abspath = MatitaMisc.absolute_path file in
586 let dirname = Filename.dirname abspath in
587 let devel = MatitamakeLib.development_for_dir dirname in
588 guistuff.filenamedata <- Some abspath, devel;
590 match MatitamakeLib.development_for_dir dirname with
592 | Some devel -> [MatitamakeLib.root_for_development devel] in
594 include_ @ (Helm_registry.get_list Helm_registry.string "matita.includes")
596 include_paths <- include_
598 method saveToFile () =
599 let oc = open_out self#getFilename in
600 output_string oc (buffer#get_text ~start:buffer#start_iter
601 ~stop:buffer#end_iter ());
603 buffer#set_modified false
605 method private _saveToBackupFile () =
606 if buffer#modified then
608 let f = self#ppFilename ^ "~" in
609 let oc = open_out f in
610 output_string oc (buffer#get_text ~start:buffer#start_iter
611 ~stop:buffer#end_iter ());
613 HLog.debug ("backup " ^ f ^ " saved")
616 method private goto_top =
617 let grafite_status,lexicon_status =
618 let rec last x = function
620 | hd::tl -> last hd tl
622 last (self#grafite_status,self#lexicon_status) history
624 (* FIXME: this is not correct since there is no undo for
625 * library_objects.set_default... *)
626 GrafiteSync.time_travel ~present:self#grafite_status ~past:grafite_status;
627 LexiconSync.time_travel ~present:self#lexicon_status ~past:lexicon_status
629 method private reset_buffer =
631 history <- [ initial_statuses () ];
634 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
635 buffer#move_mark (`MARK locked_mark) ~where:buffer#start_iter
639 source_buffer#begin_not_undoable_action ();
640 buffer#delete ~start:buffer#start_iter ~stop:buffer#end_iter;
641 source_buffer#end_not_undoable_action ();
642 buffer#set_modified false;
645 let template = HExtlib.input_file BuildTimeConf.script_template in
646 buffer#insert ~iter:(buffer#get_iter `START) template;
647 let development = MatitamakeLib.development_for_dir (Unix.getcwd ()) in
648 guistuff.filenamedata <- (None,development);
650 match development with
652 | Some devel -> [MatitamakeLib.root_for_development devel ]
655 include_ @ (Helm_registry.get_list Helm_registry.string "matita.includes")
657 include_paths <- include_ ;
658 buffer#set_modified false;
659 set_star (Filename.basename self#ppFilename) false
661 method goto (pos: [`Top | `Bottom | `Cursor]) () =
662 let old_locked_mark =
664 (buffer#create_mark ~name:"old_locked_mark"
665 ~left_gravity:true (buffer#get_iter_at_mark (`MARK locked_mark))) in
666 let getpos _ = buffer#get_iter_at_mark (`MARK locked_mark) in
667 let getoldpos _ = buffer#get_iter_at_mark old_locked_mark in
668 let dispose_old_locked_mark () = buffer#delete_mark old_locked_mark in
671 dispose_old_locked_mark ();
679 let newpos = getpos () in
680 if (getoldpos ())#compare newpos < 0 then
682 buffer#move_mark old_locked_mark newpos;
687 dispose_old_locked_mark ();
690 | Margin -> dispose_old_locked_mark (); self#notify
691 | exc -> dispose_old_locked_mark (); self#notify; raise exc)
693 let locked_iter () = buffer#get_iter_at_mark (`NAME "locked") in
694 let cursor_iter () = buffer#get_iter_at_mark `INSERT in
697 (buffer#create_mark ~name:"initial_insert"
698 ~left_gravity:true (cursor_iter ())) in
699 let dispose_remember () = buffer#delete_mark remember in
700 let remember_iter () =
701 buffer#get_iter_at_mark (`NAME "initial_insert") in
702 let cmp () = (locked_iter ())#offset - (remember_iter ())#offset in
704 let forward_until_cursor () = (* go forward until locked > cursor *)
707 if cmp () < 0 && (getoldpos ())#compare (getpos ()) < 0
710 buffer#move_mark old_locked_mark (getpos ());
716 let rec back_until_cursor len = (* go backward until locked < cursor *)
718 statements, ((grafite_status,lexicon_status)::_ as history)
720 self#_retract (icmp - len) lexicon_status grafite_status statements
722 | statement::tl1, _::tl2 ->
723 back_until_cursor (len - MatitaGtkMisc.utf8_string_length statement) (tl1,tl2)
724 | _,_ -> assert false
728 if icmp < 0 then (* locked < cursor *)
729 (forward_until_cursor (); self#notify)
730 else if icmp > 0 then (* locked > cursor *)
731 (back_until_cursor icmp (statements,history); self#notify)
732 else (* cursor = locked *)
736 dispose_old_locked_mark ();
738 | Margin -> dispose_remember (); dispose_old_locked_mark (); self#notify
739 | exc -> dispose_remember (); dispose_old_locked_mark ();
740 self#notify; raise exc)
742 method onGoingProof () =
743 match self#grafite_status.proof_status with
744 | No_proof | Proof _ -> false
745 | Incomplete_proof _ -> true
746 | Intermediate _ -> assert false
748 (* method proofStatus = MatitaTypes.get_proof_status self#status *)
749 method proofMetasenv = GrafiteTypes.get_proof_metasenv self#grafite_status
751 method proofContext =
754 | Some n -> GrafiteTypes.get_proof_context self#grafite_status n
756 method proofConclusion =
760 GrafiteTypes.get_proof_conclusion self#grafite_status n
762 method stack = GrafiteTypes.get_stack self#grafite_status
763 method setGoal n = userGoal <- n
764 method goal = userGoal
767 let rec is_there_only_comments lexicon_status s =
768 if Pcre.pmatch ~rex:only_dust_RE s then raise Margin;
769 let lexicon_status,st =
770 GrafiteParser.parse_statement (Ulexing.from_utf8_string s)
771 ~include_paths lexicon_status
774 | GrafiteParser.LSome (GrafiteAst.Comment (loc,_)) ->
775 let _,parsed_text_length = MatitaGtkMisc.utf8_parsed_text s loc in
776 (* CSC: why +1 in the following lines ???? *)
777 let parsed_text_length = parsed_text_length + 1 in
778 prerr_endline ("## " ^ string_of_int parsed_text_length);
779 let remain_len = String.length s - parsed_text_length in
780 let next = String.sub s parsed_text_length remain_len in
781 is_there_only_comments lexicon_status next
782 | GrafiteParser.LNone _
783 | GrafiteParser.LSome (GrafiteAst.Executable _) -> false
786 is_there_only_comments self#lexicon_status self#getFuture
788 | LexiconEngine.IncludedFileNotCompiled _
789 | HExtlib.Localized _
790 | CicNotationParser.Parse_error _ -> false
791 | Margin | End_of_file -> true
795 HLog.debug "script status:";
796 HLog.debug ("history size: " ^ string_of_int (List.length history));
797 HLog.debug (sprintf "%d statements:" (List.length statements));
798 List.iter HLog.debug statements;
799 HLog.debug ("Current file name: " ^
800 (match guistuff.filenamedata with
801 |None,_ -> "[ no name ]"
806 let _script = ref None
808 let script ~source_view ~mathviewer ~urichooser ~develcreator ~ask_confirmation ~set_star ()
811 ~source_view ~mathviewer ~ask_confirmation ~urichooser ~develcreator ~set_star ()
816 let current () = match !_script with None -> assert false | Some s -> s