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 module TA = GrafiteAst
32 let debug_print = if debug then prerr_endline else ignore
34 (** raised when one of the script margins (top or bottom) is reached *)
37 let safe_substring s i j =
38 try String.sub s i j with Invalid_argument _ -> assert false
40 let heading_nl_RE = Pcre.regexp "^\\s*\n\\s*"
41 let heading_nl_RE' = Pcre.regexp "^(\\s*\n\\s*)((.|\n)*)"
42 let only_dust_RE = Pcre.regexp "^(\\s|\n|%%[^\n]*\n)*$"
43 let multiline_RE = Pcre.regexp "^\n[^\n]+$"
44 let newline_RE = Pcre.regexp "\n"
47 if Pcre.pmatch ~rex:multiline_RE str then
48 "\n(** " ^ (Pcre.replace ~rex:newline_RE str) ^ " *)"
50 "\n(**\n" ^ str ^ "\n*)"
53 let s = Pcre.replace ~rex:heading_nl_RE s in
55 let nl_pos = String.index s '\n' in
59 (** creates a statement AST for the Goal tactic, e.g. "goal 7" *)
61 let module A = GrafiteAst in
62 let loc = DisambiguateTypes.dummy_floc in
63 A.Executable (loc, A.Tactical (loc,
64 A.Tactic (loc, A.Goal (loc, n)),
68 mathviewer:MatitaTypes.mathViewer;
69 urichooser: UriManager.uri list -> UriManager.uri list;
70 ask_confirmation: title:string -> message:string -> [`YES | `NO | `CANCEL];
71 develcreator: containing:string option -> unit;
72 mutable filenamedata: string option * MatitamakeLib.development option
75 let eval_with_engine guistuff status user_goal parsed_text st =
76 let module TAPp = GrafiteAstPp in
78 match guistuff.filenamedata with
80 | None,Some devel -> [MatitamakeLib.root_for_development devel ]
82 match MatitamakeLib.development_for_dir (Filename.dirname f) with
84 | Some devel -> [MatitamakeLib.root_for_development devel ]
86 let parsed_text_length = String.length parsed_text in
88 match st with TA.Executable (loc,ex) -> loc, ex | _ -> assert false in
89 let initial_space,parsed_text =
91 let pieces = Pcre.extract ~rex:heading_nl_RE' parsed_text in
92 pieces.(1), pieces.(2)
94 Not_found -> "", parsed_text in
95 (* we add the goal command if needed *)
96 let inital_space,new_status,new_status_and_text_list' =
97 match status.proof_status with
98 (* | Incomplete_proof { stack = stack }
99 when not (List.mem user_goal (Continuationals.head_goals stack)) ->
101 MatitaEngine.eval_ast ~include_paths:include_
102 ~do_heavy_checks:true status (goal_ast user_goal)
104 let initial_space = if initial_space = "" then "\n" else initial_space
108 initial_space ^ TAPp.pp_tactical (TA.Select (loc, [user_goal])) ] *)
109 | _ -> initial_space,status,[] in
111 MatitaEngine.eval_ast
112 ~include_paths:include_ ~do_heavy_checks:true new_status st
116 | TA.Command (_, TA.Alias _)
117 | TA.Command (_, TA.Include _)
118 | TA.Command (_, TA.Interpretation _) -> []
119 | _ -> MatitaSync.alias_diff ~from:status new_status
121 (* we remove the defined object since we consider them "automatic aliases" *)
123 TA.Comment (DisambiguateTypes.dummy_floc,
124 TA.Note (DisambiguateTypes.dummy_floc, ""))
126 let initial_space,status,new_status_and_text_list_rev =
127 let module DTE = DisambiguateTypes.Environment in
128 let module UM = UriManager in
129 let baseuri = MatitaTypes.get_string_option new_status "baseuri" in
131 fun (initial_space,status,acc) (k,((v,_) as value)) ->
134 UM.buri_of_uri (UM.uri_of_string v) = baseuri
136 UriManager.IllFormedUri _ -> false (* v is a description, not a URI *)
139 initial_space,status,acc
143 if initial_space = "" then "\n" else initial_space in
145 DisambiguatePp.pp_environment
146 (DisambiguateTypes.Environment.add k value
147 DisambiguateTypes.Environment.empty) in
149 MatitaSync.set_proof_aliases status [k,value]
151 "\n",new_status,((new_status, (new_text, dummy_st))::acc)
152 ) (initial_space,status,[]) new_aliases in
153 let parsed_text = initial_space ^ parsed_text in
155 List.rev new_status_and_text_list_rev @ new_status_and_text_list' @
156 [new_status, (parsed_text, st)]
158 res,parsed_text_length
160 let eval_with_engine guistuff status user_goal parsed_text st =
162 eval_with_engine guistuff status user_goal parsed_text st
164 | MatitaEngine.UnableToInclude what
165 | MatitaEngine.IncludedFileNotCompiled what as exc ->
166 let compile_needed_and_go_on d =
169 while Glib.Main.pending () do ignore(Glib.Main.iteration false); done
171 if not(MatitamakeLib.build_development_in_bg ~target refresh_cb d) then
174 eval_with_engine guistuff status user_goal parsed_text st
176 let do_nothing () = [], 0 in
177 let handle_with_devel d =
178 let name = MatitamakeLib.name_for_development d in
179 let title = "Unable to include " ^ what in
181 what ^ " is handled by development <b>" ^ name ^ "</b>.\n\n" ^
182 "<i>Should I compile it and Its dependencies?</i>"
184 (match guistuff.ask_confirmation ~title ~message with
185 | `YES -> compile_needed_and_go_on d
187 | `CANCEL -> do_nothing ())
189 let handle_without_devel filename =
190 let title = "Unable to include " ^ what in
192 what ^ " is <b>not</b> handled by a development.\n" ^
193 "All dependencies are automatically solved for a development.\n\n" ^
194 "<i>Do you want to set up a development?</i>"
196 (match guistuff.ask_confirmation ~title ~message with
200 guistuff.develcreator ~containing:(Some (Filename.dirname f))
201 | None -> guistuff.develcreator ~containing:None);
204 | `CANCEL -> do_nothing())
206 match guistuff.filenamedata with
207 | None,None -> handle_without_devel None
208 | None,Some d -> handle_with_devel d
210 match MatitamakeLib.development_for_dir (Filename.dirname f) with
211 | None -> handle_without_devel (Some f)
212 | Some d -> handle_with_devel d
215 let disambiguate_macro_term term status user_goal =
216 let module MD = MatitaDisambiguator in
217 let dbd = LibraryDb.instance () in
218 let metasenv = MatitaTypes.get_proof_metasenv status in
219 let context = MatitaTypes.get_proof_context status user_goal in
221 MD.disambiguate_term ~dbd ~context ~metasenv ~aliases:status.aliases
222 ~universe:(Some status.multi_aliases) term in
227 let eval_macro guistuff status user_goal unparsed_text parsed_text script mac =
228 let module TAPp = GrafiteAstPp in
229 let module MQ = MetadataQuery in
230 let module MDB = LibraryDb in
231 let module CTC = CicTypeChecker in
232 let module CU = CicUniv in
233 (* no idea why ocaml wants this *)
234 let parsed_text_length = String.length parsed_text in
235 let dbd = LibraryDb.instance () in
238 | TA.WMatch (loc, term) ->
239 let term = disambiguate_macro_term term status user_goal in
240 let l = Whelp.match_term ~dbd term in
242 MatitaMisc.strip_suffix ~suffix:"."
243 (HExtlib.trim_blanks unparsed_text)
245 let entry = `Whelp (query_url, l) in
246 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
247 [], parsed_text_length
248 | TA.WInstance (loc, term) ->
249 let term = disambiguate_macro_term term status user_goal in
250 let l = Whelp.instance ~dbd term in
251 let entry = `Whelp (TAPp.pp_macro_cic (TA.WInstance (loc, term)), l) in
252 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
253 [], parsed_text_length
254 | TA.WLocate (loc, s) ->
255 let l = Whelp.locate ~dbd s in
256 let entry = `Whelp (TAPp.pp_macro_cic (TA.WLocate (loc, s)), l) in
257 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
258 [], parsed_text_length
259 | TA.WElim (loc, term) ->
260 let term = disambiguate_macro_term term status user_goal in
263 | Cic.MutInd (uri,n,_) -> UriManager.uri_of_uriref uri n None
264 | _ -> failwith "Not a MutInd"
266 let l = Whelp.elim ~dbd uri in
267 let entry = `Whelp (TAPp.pp_macro_cic (TA.WElim (loc, term)), l) in
268 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
269 [], parsed_text_length
270 | TA.WHint (loc, term) ->
271 let term = disambiguate_macro_term term status user_goal in
272 let s = ((None,[0,[],term], Cic.Meta (0,[]) ,term),0) in
273 let l = List.map fst (MQ.experimental_hint ~dbd s) in
274 let entry = `Whelp (TAPp.pp_macro_cic (TA.WHint (loc, term)), l) in
275 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
276 [], parsed_text_length
279 let proof = MatitaTypes.get_current_proof status in
280 let proof_status = proof, user_goal in
281 let l = List.map fst (MQ.experimental_hint ~dbd proof_status) in
282 let selected = guistuff.urichooser l in
284 | [] -> [], parsed_text_length
286 let suri = UriManager.string_of_uri uri in
288 TA.Executable (loc, (TA.Tactical (loc,
290 TA.Apply (loc, CicNotationPt.Uri (suri, None))),
293 let new_status = MatitaEngine.eval_ast status ast in
295 comment parsed_text ^
296 "\n" ^ TAPp.pp_statement ast
298 [ new_status , (extra_text, ast) ], parsed_text_length
301 "The result of the urichooser should be only 1 uri, not:\n";
303 fun u -> HLog.error (UriManager.string_of_uri u ^ "\n")
306 | TA.Check (_,term) ->
307 let metasenv = MatitaTypes.get_proof_metasenv status in
308 let context = MatitaTypes.get_proof_context status user_goal in
310 MatitaDisambiguator.disambiguate_term ~dbd ~context ~metasenv
311 ~aliases:status.aliases ~universe:(Some status.multi_aliases) term
313 let _, metasenv , term, ugraph =
318 let ty,_ = CTC.type_of_aux' metasenv context term ugraph in
319 let t_and_ty = Cic.Cast (term,ty) in
320 guistuff.mathviewer#show_entry (`Cic (t_and_ty,metasenv));
321 [], parsed_text_length
324 let status = script#status.proof_status in
327 | _ -> script#retract ();go_back()
329 [], parsed_text_length, Some go_back
330 | TA.Redo (_, Some i) -> [], parsed_text_length,
331 Some (fun () -> for j = 1 to i do advance () done)
332 | TA.Redo (_, None) -> [], parsed_text_length,
333 Some (fun () -> advance ())
334 | TA.Undo (_, Some i) -> [], parsed_text_length,
335 Some (fun () -> for j = 1 to i do script#retract () done)
336 | TA.Undo (_, None) -> [], parsed_text_length,
337 Some (fun () -> script#retract ()) *)
339 | TA.Quit _ -> failwith "not implemented"
340 | TA.Print (_,kind) -> failwith "not implemented"
341 | TA.Search_pat (_, search_kind, str) -> failwith "not implemented"
342 | TA.Search_term (_, search_kind, term) -> failwith "not implemented"
344 let eval_executable guistuff status user_goal unparsed_text parsed_text script
347 let module TAPp = GrafiteAstPp in
348 let module MD = MatitaDisambiguator in
349 let module ML = MatitaMisc in
351 | TA.Command (loc, _) | TA.Tactical (loc, _, _) ->
353 (match MatitaMisc.baseuri_of_baseuri_decl (TA.Executable (loc,ex)) with
356 if not (MatitaMisc.is_empty u) then
358 guistuff.ask_confirmation
359 ~title:"Baseuri redefinition"
361 "Baseuri " ^ u ^ " already exists.\n" ^
362 "Do you want to redefine the corresponding "^
363 "part of the library?")
366 let basedir = Helm_registry.get "matita.basedir" in
367 LibraryClean.clean_baseuris ~basedir [u]
369 | `CANCEL -> raise MatitaTypes.Cancel);
371 guistuff status user_goal parsed_text (TA.Executable (loc, ex))
372 with MatitaTypes.Cancel -> [], 0)
373 | TA.Macro (_,mac) ->
374 eval_macro guistuff status user_goal unparsed_text parsed_text script mac
376 let rec eval_statement (buffer : GText.buffer) guistuff status user_goal
379 let st, unparsed_text =
382 if Pcre.pmatch ~rex:only_dust_RE text then raise Margin;
383 GrafiteParser.parse_statement (Ulexing.from_utf8_string text), text
384 | `Ast (st, text) -> st, text
386 let text_of_loc loc =
387 let parsed_text_length = snd (HExtlib.loc_of_floc loc) in
388 let parsed_text = safe_substring unparsed_text 0 parsed_text_length in
389 parsed_text, parsed_text_length
392 | GrafiteAst.Comment (loc, _) ->
393 let parsed_text, parsed_text_length = text_of_loc loc in
394 let remain_len = String.length unparsed_text - parsed_text_length in
395 let s = String.sub unparsed_text parsed_text_length remain_len in
398 eval_statement buffer guistuff status user_goal script
401 HExtlib.Localized (floc, exn) ->
402 HExtlib.raise_localized_exception ~offset:parsed_text_length floc exn
403 | MatitaDisambiguator.DisambiguationError (offset,errorll) ->
405 (MatitaDisambiguator.DisambiguationError
406 (offset+parsed_text_length, errorll))
409 | (status, (text, ast)) :: tl ->
410 ((status, (parsed_text ^ text, ast))::tl), (parsed_text_length + len)
412 | GrafiteAst.Executable (loc, ex) ->
413 let parsed_text, parsed_text_length = text_of_loc loc in
414 eval_executable guistuff status user_goal unparsed_text parsed_text
417 let fresh_script_id =
421 class script ~(source_view: GSourceView.source_view)
422 ~(init: MatitaTypes.status)
423 ~(mathviewer: MatitaTypes.mathViewer)
429 let buffer = source_view#buffer in
430 let source_buffer = source_view#source_buffer in
432 val scriptId = fresh_script_id ()
435 mathviewer = mathviewer;
436 urichooser = urichooser;
437 ask_confirmation = ask_confirmation;
438 develcreator = develcreator;
439 filenamedata = (None, None)}
441 method private getFilename =
442 match guistuff.filenamedata with Some f,_ -> f | _ -> assert false
444 method filename = self#getFilename
446 method private ppFilename =
447 match guistuff.filenamedata with
449 | None,_ -> sprintf ".unnamed%d.ma" scriptId
452 ignore (GMain.Timeout.add ~ms:300000
453 ~callback:(fun _ -> self#_saveToBackupFile ();true));
454 ignore (buffer#connect#modified_changed
455 (fun _ -> set_star (Filename.basename self#ppFilename) buffer#modified))
457 val mutable statements = []; (** executed statements *)
458 val mutable history = [ init ];
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 = ~-1
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 status *)
479 method status = match history with hd :: _ -> hd | _ -> assert false
481 method private _advance ?statement () =
483 let (entries, parsed_len) =
484 eval_statement buffer guistuff self#status userGoal self st
486 let (new_statuses, new_statements, new_asts) =
487 let statuses, statements = List.split entries in
488 let texts, asts = List.split statements in
489 statuses, texts, asts
491 history <- List.rev new_statuses @ history;
492 statements <- List.rev new_statements @ statements;
493 let start = buffer#get_iter_at_mark (`MARK locked_mark) in
494 let new_text = String.concat "" new_statements in
495 if statement <> None then
496 buffer#insert ~iter:start new_text
498 let s = match st with `Raw s | `Ast (_, s) -> s in
499 if new_text <> String.sub s 0 parsed_len then
501 let stop = start#copy#forward_chars parsed_len in
502 buffer#delete ~start ~stop;
503 buffer#insert ~iter:start new_text;
505 self#moveMark (String.length new_text);
507 (match List.rev new_asts with (* advance again on punctuation *)
508 | TA.Executable (_, TA.Tactical (_, tac, _)) :: _ ->
510 (buffer#get_iter_at_mark (`MARK locked_mark))#offset
512 let text = self#getFuture in
514 (match parse_statement baseoffset 0 buffer text with
515 | TA.Executable (loc, TA.Tactical (_, tac, None)) as st
516 when GrafiteAst.is_punctuation tac ->
517 let len = snd (CicNotationPt.loc_of_floc loc) in
518 aux (`Ast (st, String.sub text 0 len))
520 with CicNotationParser.Parse_error _ | End_of_file -> ())
524 let s = match statement with Some s -> s | None -> self#getFuture in
525 HLog.debug ("evaluating: " ^ first_line s ^ " ...");
526 (try aux (`Raw s) with End_of_file -> raise Margin)
528 method private _retract offset status new_statements new_history =
529 let cur_status = match history with s::_ -> s | [] -> assert false in
530 MatitaSync.time_travel ~present:cur_status ~past:status;
531 statements <- new_statements;
532 history <- new_history;
533 self#moveMark (- offset)
535 method advance ?statement () =
537 self#_advance ?statement ();
540 | Margin -> self#notify
541 | exc -> self#notify; raise exc
545 let cmp,new_statements,new_history,status =
546 match statements,history with
547 stat::statements, _::(status::_ as history) ->
548 String.length stat, statements, history, status
549 | [],[_] -> raise Margin
550 | _,_ -> assert false
552 self#_retract cmp status new_statements new_history;
555 | Margin -> self#notify
556 | exc -> self#notify; raise exc
558 method private getFuture =
559 buffer#get_text ~start:(buffer#get_iter_at_mark (`MARK locked_mark))
560 ~stop:buffer#end_iter ()
563 (** @param rel_offset relative offset from current position of locked_mark *)
564 method private moveMark rel_offset =
565 let mark = `MARK locked_mark in
566 let old_insert = buffer#get_iter_at_mark `INSERT in
567 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
568 let current_mark_pos = buffer#get_iter_at_mark mark in
570 match rel_offset with
571 | 0 -> current_mark_pos
572 | n when n > 0 -> current_mark_pos#forward_chars n
573 | n (* when n < 0 *) -> current_mark_pos#backward_chars (abs n)
575 buffer#move_mark mark ~where:new_mark_pos;
576 buffer#apply_tag locked_tag ~start:buffer#start_iter ~stop:new_mark_pos;
577 buffer#move_mark `INSERT old_insert;
578 let mark_position = buffer#get_iter_at_mark mark in
579 if source_view#move_mark_onscreen mark then
581 buffer#move_mark mark mark_position;
582 source_view#scroll_to_mark ~use_align:true ~xalign:1.0 ~yalign:0.1 mark;
584 while Glib.Main.pending () do ignore(Glib.Main.iteration false); done
586 method clean_dirty_lock =
587 let lock_mark_iter = buffer#get_iter_at_mark (`MARK locked_mark) in
588 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
589 buffer#apply_tag locked_tag ~start:buffer#start_iter ~stop:lock_mark_iter
591 val mutable observers = []
593 method addObserver (o: MatitaTypes.status -> unit) =
594 observers <- o :: observers
596 method private notify =
597 let status = self#status in
598 List.iter (fun o -> o status) observers
600 method loadFromFile f =
601 buffer#set_text (HExtlib.input_file f);
603 buffer#set_modified false
605 method assignFileName file =
606 let abspath = MatitaMisc.absolute_path file in
607 let devel = MatitamakeLib.development_for_dir (Filename.dirname abspath) in
608 guistuff.filenamedata <- Some abspath, devel
610 method saveToFile () =
611 let oc = open_out self#getFilename in
612 output_string oc (buffer#get_text ~start:buffer#start_iter
613 ~stop:buffer#end_iter ());
615 buffer#set_modified false
617 method private _saveToBackupFile () =
618 if buffer#modified then
620 let f = self#ppFilename ^ "~" in
621 let oc = open_out f in
622 output_string oc (buffer#get_text ~start:buffer#start_iter
623 ~stop:buffer#end_iter ());
625 HLog.debug ("backup " ^ f ^ " saved")
628 method private goto_top =
629 MatitaSync.time_travel ~present:self#status ~past:init
631 method private reset_buffer =
636 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
637 buffer#move_mark (`MARK locked_mark) ~where:buffer#start_iter
641 source_buffer#begin_not_undoable_action ();
642 buffer#delete ~start:buffer#start_iter ~stop:buffer#end_iter;
643 source_buffer#end_not_undoable_action ();
644 buffer#set_modified false
647 let template = HExtlib.input_file BuildTimeConf.script_template in
648 buffer#insert ~iter:(buffer#get_iter `START) template;
649 guistuff.filenamedata <-
650 (None,MatitamakeLib.development_for_dir (Unix.getcwd ()));
651 buffer#set_modified false;
652 set_star (Filename.basename self#ppFilename) false
654 method goto (pos: [`Top | `Bottom | `Cursor]) () =
655 let old_locked_mark =
657 (buffer#create_mark ~name:"old_locked_mark"
658 ~left_gravity:true (buffer#get_iter_at_mark (`MARK locked_mark))) in
659 let getpos _ = buffer#get_iter_at_mark (`MARK locked_mark) in
660 let getoldpos _ = buffer#get_iter_at_mark old_locked_mark in
661 let dispose_old_locked_mark () = buffer#delete_mark old_locked_mark in
664 dispose_old_locked_mark ();
672 let newpos = getpos () in
673 if (getoldpos ())#compare newpos < 0 then
675 buffer#move_mark old_locked_mark newpos;
680 dispose_old_locked_mark ();
683 | Margin -> dispose_old_locked_mark (); self#notify
684 | exc -> dispose_old_locked_mark (); self#notify; raise exc)
686 let locked_iter () = buffer#get_iter_at_mark (`NAME "locked") in
687 let cursor_iter () = buffer#get_iter_at_mark `INSERT in
690 (buffer#create_mark ~name:"initial_insert"
691 ~left_gravity:true (cursor_iter ())) in
692 let dispose_remember () = buffer#delete_mark remember in
693 let remember_iter () =
694 buffer#get_iter_at_mark (`NAME "initial_insert") in
695 let cmp () = (locked_iter ())#offset - (remember_iter ())#offset in
697 let forward_until_cursor () = (* go forward until locked > cursor *)
700 if cmp () < 0 && (getoldpos ())#compare (getpos ()) < 0
703 buffer#move_mark old_locked_mark (getpos ());
709 let rec back_until_cursor len = (* go backward until locked < cursor *)
711 statements, (status::_ as history) when len <= 0 ->
712 self#_retract (icmp - len) status statements history
713 | statement::tl1, _::tl2 ->
714 back_until_cursor (len - String.length statement) (tl1,tl2)
715 | _,_ -> assert false
719 if icmp < 0 then (* locked < cursor *)
720 (forward_until_cursor (); self#notify)
721 else if icmp > 0 then (* locked > cursor *)
722 (back_until_cursor icmp (statements,history); self#notify)
723 else (* cursor = locked *)
727 dispose_old_locked_mark ();
729 | Margin -> dispose_remember (); dispose_old_locked_mark (); self#notify
730 | exc -> dispose_remember (); dispose_old_locked_mark ();
731 self#notify; raise exc)
733 method onGoingProof () =
734 match self#status.proof_status with
735 | No_proof | Proof _ -> false
736 | Incomplete_proof _ -> true
737 | Intermediate _ -> assert false
739 (* method proofStatus = MatitaTypes.get_proof_status self#status *)
740 method proofMetasenv = MatitaTypes.get_proof_metasenv self#status
741 method proofContext = MatitaTypes.get_proof_context self#status userGoal
742 method proofConclusion = MatitaTypes.get_proof_conclusion self#status userGoal
743 method stack = MatitaTypes.get_stack self#status
744 method setGoal n = userGoal <- n
745 method goal = userGoal
748 let s = self#getFuture in
749 let rec is_there_and_executable s =
750 if Pcre.pmatch ~rex:only_dust_RE s then raise Margin;
751 let st = GrafiteParser.parse_statement (Ulexing.from_utf8_string s) in
753 | GrafiteAst.Comment (loc,_)->
754 let parsed_text_length = snd (HExtlib.loc_of_floc loc) in
755 let remain_len = String.length s - parsed_text_length in
756 let next = String.sub s parsed_text_length remain_len in
757 is_there_and_executable next
758 | GrafiteAst.Executable (loc, ex) -> false
761 is_there_and_executable s
763 | CicNotationParser.Parse_error _ -> false
764 | Margin | End_of_file -> true
768 HLog.debug "script status:";
769 HLog.debug ("history size: " ^ string_of_int (List.length history));
770 HLog.debug (sprintf "%d statements:" (List.length statements));
771 List.iter HLog.debug statements;
772 HLog.debug ("Current file name: " ^
773 (match guistuff.filenamedata with
774 |None,_ -> "[ no name ]"
779 let _script = ref None
781 let script ~source_view ~init ~mathviewer ~urichooser ~develcreator ~ask_confirmation ~set_star ()
784 ~source_view ~init ~mathviewer ~ask_confirmation ~urichooser ~develcreator ~set_star ()
789 let current () = match !_script with None -> assert false | Some s -> s