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
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 GrafiteEngine.eval_ast
112 ~baseuri_of_script:(GrafiteParserMisc.baseuri_of_script ~include_paths:include_)
113 ~disambiguate_tactic:GrafiteDisambiguate.disambiguate_tactic
114 ~disambiguate_command:GrafiteDisambiguate.disambiguate_command
115 ~do_heavy_checks:true new_status st
119 | TA.Command (_, TA.Alias _)
120 | TA.Command (_, TA.Include _)
121 | TA.Command (_, TA.Interpretation _) -> []
122 | _ -> MatitaSync.alias_diff ~from:status new_status
124 (* we remove the defined object since we consider them "automatic aliases" *)
126 TA.Comment (DisambiguateTypes.dummy_floc,
127 TA.Note (DisambiguateTypes.dummy_floc, ""))
129 let initial_space,status,new_status_and_text_list_rev =
130 let module DTE = DisambiguateTypes.Environment in
131 let module UM = UriManager in
132 let baseuri = GrafiteTypes.get_string_option new_status "baseuri" in
134 fun (initial_space,status,acc) (k,((v,_) as value)) ->
137 UM.buri_of_uri (UM.uri_of_string v) = baseuri
139 UriManager.IllFormedUri _ -> false (* v is a description, not a URI *)
142 initial_space,status,acc
146 if initial_space = "" then "\n" else initial_space in
148 DisambiguatePp.pp_environment
149 (DisambiguateTypes.Environment.add k value
150 DisambiguateTypes.Environment.empty) in
152 MatitaSync.set_proof_aliases status [k,value]
154 "\n",new_status,((new_status, (new_text, dummy_st))::acc)
155 ) (initial_space,status,[]) new_aliases in
156 let parsed_text = initial_space ^ parsed_text in
158 List.rev new_status_and_text_list_rev @ new_status_and_text_list' @
159 [new_status, (parsed_text, st)]
161 res,parsed_text_length
163 let eval_with_engine guistuff status user_goal parsed_text st =
165 eval_with_engine guistuff status user_goal parsed_text st
167 | GrafiteParserMisc.UnableToInclude what
168 | GrafiteEngine.IncludedFileNotCompiled what as exc ->
169 let compile_needed_and_go_on d =
172 while Glib.Main.pending () do ignore(Glib.Main.iteration false); done
174 if not(MatitamakeLib.build_development_in_bg ~target refresh_cb d) then
177 eval_with_engine guistuff status user_goal parsed_text st
179 let do_nothing () = [], 0 in
180 let handle_with_devel d =
181 let name = MatitamakeLib.name_for_development d in
182 let title = "Unable to include " ^ what in
184 what ^ " is handled by development <b>" ^ name ^ "</b>.\n\n" ^
185 "<i>Should I compile it and Its dependencies?</i>"
187 (match guistuff.ask_confirmation ~title ~message with
188 | `YES -> compile_needed_and_go_on d
190 | `CANCEL -> do_nothing ())
192 let handle_without_devel filename =
193 let title = "Unable to include " ^ what in
195 what ^ " is <b>not</b> handled by a development.\n" ^
196 "All dependencies are automatically solved for a development.\n\n" ^
197 "<i>Do you want to set up a development?</i>"
199 (match guistuff.ask_confirmation ~title ~message with
203 guistuff.develcreator ~containing:(Some (Filename.dirname f))
204 | None -> guistuff.develcreator ~containing:None);
207 | `CANCEL -> do_nothing())
209 match guistuff.filenamedata with
210 | None,None -> handle_without_devel None
211 | None,Some d -> handle_with_devel d
213 match MatitamakeLib.development_for_dir (Filename.dirname f) with
214 | None -> handle_without_devel (Some f)
215 | Some d -> handle_with_devel d
218 let disambiguate_macro_term term status user_goal =
219 let module MD = MatitaDisambiguator in
220 let dbd = LibraryDb.instance () in
221 let metasenv = GrafiteTypes.get_proof_metasenv status in
222 let context = GrafiteTypes.get_proof_context status user_goal in
224 MD.disambiguate_term ~dbd ~context ~metasenv ~aliases:status.aliases
225 ~universe:(Some status.multi_aliases) term in
230 let eval_macro guistuff status user_goal unparsed_text parsed_text script mac =
231 let module TAPp = GrafiteAstPp in
232 let module MQ = MetadataQuery in
233 let module MDB = LibraryDb in
234 let module CTC = CicTypeChecker in
235 let module CU = CicUniv in
236 (* no idea why ocaml wants this *)
237 let parsed_text_length = String.length parsed_text in
238 let dbd = LibraryDb.instance () in
241 | TA.WMatch (loc, term) ->
242 let term = disambiguate_macro_term term status user_goal in
243 let l = Whelp.match_term ~dbd term in
245 MatitaMisc.strip_suffix ~suffix:"."
246 (HExtlib.trim_blanks unparsed_text)
248 let entry = `Whelp (query_url, l) in
249 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
250 [], parsed_text_length
251 | TA.WInstance (loc, term) ->
252 let term = disambiguate_macro_term term status user_goal in
253 let l = Whelp.instance ~dbd term in
254 let entry = `Whelp (TAPp.pp_macro_cic (TA.WInstance (loc, term)), l) in
255 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
256 [], parsed_text_length
257 | TA.WLocate (loc, s) ->
258 let l = Whelp.locate ~dbd s in
259 let entry = `Whelp (TAPp.pp_macro_cic (TA.WLocate (loc, s)), l) in
260 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
261 [], parsed_text_length
262 | TA.WElim (loc, term) ->
263 let term = disambiguate_macro_term term status user_goal in
266 | Cic.MutInd (uri,n,_) -> UriManager.uri_of_uriref uri n None
267 | _ -> failwith "Not a MutInd"
269 let l = Whelp.elim ~dbd uri in
270 let entry = `Whelp (TAPp.pp_macro_cic (TA.WElim (loc, term)), l) in
271 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
272 [], parsed_text_length
273 | TA.WHint (loc, term) ->
274 let term = disambiguate_macro_term term status user_goal in
275 let s = ((None,[0,[],term], Cic.Meta (0,[]) ,term),0) in
276 let l = List.map fst (MQ.experimental_hint ~dbd s) in
277 let entry = `Whelp (TAPp.pp_macro_cic (TA.WHint (loc, term)), l) in
278 guistuff.mathviewer#show_uri_list ~reuse:true ~entry l;
279 [], parsed_text_length
282 let proof = GrafiteTypes.get_current_proof status in
283 let proof_status = proof, user_goal in
284 let l = List.map fst (MQ.experimental_hint ~dbd proof_status) in
285 let selected = guistuff.urichooser l in
287 | [] -> [], parsed_text_length
289 let suri = UriManager.string_of_uri uri in
291 TA.Executable (loc, (TA.Tactical (loc,
293 TA.Apply (loc, CicNotationPt.Uri (suri, None))),
297 GrafiteEngine.eval_ast
298 ~baseuri_of_script:(fun _ -> assert false)
299 ~disambiguate_tactic:GrafiteDisambiguate.disambiguate_tactic
300 ~disambiguate_command:GrafiteDisambiguate.disambiguate_command
303 comment parsed_text ^
304 "\n" ^ TAPp.pp_statement ast
306 [ new_status , (extra_text, ast) ], parsed_text_length
309 "The result of the urichooser should be only 1 uri, not:\n";
311 fun u -> HLog.error (UriManager.string_of_uri u ^ "\n")
314 | TA.Check (_,term) ->
315 let metasenv = GrafiteTypes.get_proof_metasenv status in
316 let context = GrafiteTypes.get_proof_context status user_goal in
318 MatitaDisambiguator.disambiguate_term ~dbd ~context ~metasenv
319 ~aliases:status.aliases ~universe:(Some status.multi_aliases) term
321 let _, metasenv , term, ugraph =
326 let ty,_ = CTC.type_of_aux' metasenv context term ugraph in
327 let t_and_ty = Cic.Cast (term,ty) in
328 guistuff.mathviewer#show_entry (`Cic (t_and_ty,metasenv));
329 [], parsed_text_length
332 let status = script#status.proof_status in
335 | _ -> script#retract ();go_back()
337 [], parsed_text_length, Some go_back
338 | TA.Redo (_, Some i) -> [], parsed_text_length,
339 Some (fun () -> for j = 1 to i do advance () done)
340 | TA.Redo (_, None) -> [], parsed_text_length,
341 Some (fun () -> advance ())
342 | TA.Undo (_, Some i) -> [], parsed_text_length,
343 Some (fun () -> for j = 1 to i do script#retract () done)
344 | TA.Undo (_, None) -> [], parsed_text_length,
345 Some (fun () -> script#retract ()) *)
347 | TA.Quit _ -> failwith "not implemented"
348 | TA.Print (_,kind) -> failwith "not implemented"
349 | TA.Search_pat (_, search_kind, str) -> failwith "not implemented"
350 | TA.Search_term (_, search_kind, term) -> failwith "not implemented"
352 let eval_executable guistuff status user_goal unparsed_text parsed_text script
355 let module TAPp = GrafiteAstPp in
356 let module MD = MatitaDisambiguator in
357 let module ML = MatitaMisc in
359 | TA.Command (loc, _) | TA.Tactical (loc, _, _) ->
361 (match GrafiteParserMisc.baseuri_of_baseuri_decl (TA.Executable (loc,ex)) with
364 if not (GrafiteMisc.is_empty u) then
366 guistuff.ask_confirmation
367 ~title:"Baseuri redefinition"
369 "Baseuri " ^ u ^ " already exists.\n" ^
370 "Do you want to redefine the corresponding "^
371 "part of the library?")
374 let basedir = Helm_registry.get "matita.basedir" in
375 LibraryClean.clean_baseuris ~basedir [u]
377 | `CANCEL -> raise MatitaTypes.Cancel);
379 guistuff status user_goal parsed_text (TA.Executable (loc, ex))
380 with MatitaTypes.Cancel -> [], 0)
381 | TA.Macro (_,mac) ->
382 eval_macro guistuff status user_goal unparsed_text parsed_text script mac
384 let rec eval_statement (buffer : GText.buffer) guistuff status user_goal
387 let st, unparsed_text =
390 if Pcre.pmatch ~rex:only_dust_RE text then raise Margin;
391 GrafiteParser.parse_statement (Ulexing.from_utf8_string text), text
392 | `Ast (st, text) -> st, text
394 let text_of_loc loc =
395 let parsed_text_length = snd (HExtlib.loc_of_floc loc) in
396 let parsed_text = safe_substring unparsed_text 0 parsed_text_length in
397 parsed_text, parsed_text_length
400 | GrafiteAst.Comment (loc, _) ->
401 let parsed_text, parsed_text_length = text_of_loc loc in
402 let remain_len = String.length unparsed_text - parsed_text_length in
403 let s = String.sub unparsed_text parsed_text_length remain_len in
406 eval_statement buffer guistuff status user_goal script
409 HExtlib.Localized (floc, exn) ->
410 HExtlib.raise_localized_exception ~offset:parsed_text_length floc exn
411 | MatitaDisambiguator.DisambiguationError (offset,errorll) ->
413 (MatitaDisambiguator.DisambiguationError
414 (offset+parsed_text_length, errorll))
417 | (status, (text, ast)) :: tl ->
418 ((status, (parsed_text ^ text, ast))::tl), (parsed_text_length + len)
420 | GrafiteAst.Executable (loc, ex) ->
421 let parsed_text, parsed_text_length = text_of_loc loc in
422 eval_executable guistuff status user_goal unparsed_text parsed_text
425 let fresh_script_id =
429 class script ~(source_view: GSourceView.source_view)
430 ~(mathviewer: MatitaTypes.mathViewer)
436 let buffer = source_view#buffer in
437 let source_buffer = source_view#source_buffer in
439 val scriptId = fresh_script_id ()
442 mathviewer = mathviewer;
443 urichooser = urichooser;
444 ask_confirmation = ask_confirmation;
445 develcreator = develcreator;
446 filenamedata = (None, None)}
448 method private getFilename =
449 match guistuff.filenamedata with Some f,_ -> f | _ -> assert false
451 method filename = self#getFilename
453 method private ppFilename =
454 match guistuff.filenamedata with
456 | None,_ -> sprintf ".unnamed%d.ma" scriptId
459 ignore (GMain.Timeout.add ~ms:300000
460 ~callback:(fun _ -> self#_saveToBackupFile ();true));
461 ignore (buffer#connect#modified_changed
462 (fun _ -> set_star (Filename.basename self#ppFilename) buffer#modified))
464 val mutable statements = []; (** executed statements *)
465 val mutable history = [ MatitaSync.init () ];
466 (** list of states before having executed statements. Head element of this
467 * list is the current state, last element is the state at the beginning of
469 * Invariant: this list length is 1 + length of statements *)
471 (** goal as seen by the user (i.e. metano corresponding to current tab) *)
472 val mutable userGoal = ~-1
474 (** text mark and tag representing locked part of a script *)
476 buffer#create_mark ~name:"locked" ~left_gravity:true buffer#start_iter
477 val locked_tag = buffer#create_tag [`BACKGROUND "lightblue"; `EDITABLE false]
478 val error_tag = buffer#create_tag [`UNDERLINE `SINGLE; `FOREGROUND "red"]
480 method locked_mark = locked_mark
481 method locked_tag = locked_tag
482 method error_tag = error_tag
484 (* history can't be empty, the invariant above grant that it contains at
485 * least the init status *)
486 method status = match history with hd :: _ -> hd | _ -> assert false
488 method private _advance ?statement () =
490 let (entries, parsed_len) =
491 eval_statement buffer guistuff self#status userGoal self st
493 let (new_statuses, new_statements, new_asts) =
494 let statuses, statements = List.split entries in
495 let texts, asts = List.split statements in
496 statuses, texts, asts
498 history <- List.rev new_statuses @ history;
499 statements <- List.rev new_statements @ statements;
500 let start = buffer#get_iter_at_mark (`MARK locked_mark) in
501 let new_text = String.concat "" new_statements in
502 if statement <> None then
503 buffer#insert ~iter:start new_text
505 let s = match st with `Raw s | `Ast (_, s) -> s in
506 if new_text <> String.sub s 0 parsed_len then
508 let stop = start#copy#forward_chars parsed_len in
509 buffer#delete ~start ~stop;
510 buffer#insert ~iter:start new_text;
512 self#moveMark (String.length new_text);
514 (match List.rev new_asts with (* advance again on punctuation *)
515 | TA.Executable (_, TA.Tactical (_, tac, _)) :: _ ->
517 (buffer#get_iter_at_mark (`MARK locked_mark))#offset
519 let text = self#getFuture in
521 (match parse_statement baseoffset 0 buffer text with
522 | TA.Executable (loc, TA.Tactical (_, tac, None)) as st
523 when GrafiteAst.is_punctuation tac ->
524 let len = snd (CicNotationPt.loc_of_floc loc) in
525 aux (`Ast (st, String.sub text 0 len))
527 with CicNotationParser.Parse_error _ | End_of_file -> ())
531 let s = match statement with Some s -> s | None -> self#getFuture in
532 HLog.debug ("evaluating: " ^ first_line s ^ " ...");
533 (try aux (`Raw s) with End_of_file -> raise Margin)
535 method private _retract offset status new_statements new_history =
536 let cur_status = match history with s::_ -> s | [] -> assert false in
537 MatitaSync.time_travel ~present:cur_status ~past:status;
538 statements <- new_statements;
539 history <- new_history;
540 self#moveMark (- offset)
542 method advance ?statement () =
544 self#_advance ?statement ();
547 | Margin -> self#notify
548 | exc -> self#notify; raise exc
552 let cmp,new_statements,new_history,status =
553 match statements,history with
554 stat::statements, _::(status::_ as history) ->
555 String.length stat, statements, history, status
556 | [],[_] -> raise Margin
557 | _,_ -> assert false
559 self#_retract cmp status new_statements new_history;
562 | Margin -> self#notify
563 | exc -> self#notify; raise exc
565 method private getFuture =
566 buffer#get_text ~start:(buffer#get_iter_at_mark (`MARK locked_mark))
567 ~stop:buffer#end_iter ()
570 (** @param rel_offset relative offset from current position of locked_mark *)
571 method private moveMark rel_offset =
572 let mark = `MARK locked_mark in
573 let old_insert = buffer#get_iter_at_mark `INSERT in
574 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
575 let current_mark_pos = buffer#get_iter_at_mark mark in
577 match rel_offset with
578 | 0 -> current_mark_pos
579 | n when n > 0 -> current_mark_pos#forward_chars n
580 | n (* when n < 0 *) -> current_mark_pos#backward_chars (abs n)
582 buffer#move_mark mark ~where:new_mark_pos;
583 buffer#apply_tag locked_tag ~start:buffer#start_iter ~stop:new_mark_pos;
584 buffer#move_mark `INSERT old_insert;
585 let mark_position = buffer#get_iter_at_mark mark in
586 if source_view#move_mark_onscreen mark then
588 buffer#move_mark mark mark_position;
589 source_view#scroll_to_mark ~use_align:true ~xalign:1.0 ~yalign:0.1 mark;
591 while Glib.Main.pending () do ignore(Glib.Main.iteration false); done
593 method clean_dirty_lock =
594 let lock_mark_iter = buffer#get_iter_at_mark (`MARK locked_mark) in
595 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
596 buffer#apply_tag locked_tag ~start:buffer#start_iter ~stop:lock_mark_iter
598 val mutable observers = []
600 method addObserver (o: GrafiteTypes.status -> unit) =
601 observers <- o :: observers
603 method private notify =
604 let status = self#status in
605 List.iter (fun o -> o status) observers
607 method loadFromFile f =
608 buffer#set_text (HExtlib.input_file f);
610 buffer#set_modified false
612 method assignFileName file =
613 let abspath = MatitaMisc.absolute_path file in
614 let devel = MatitamakeLib.development_for_dir (Filename.dirname abspath) in
615 guistuff.filenamedata <- Some abspath, devel
617 method saveToFile () =
618 let oc = open_out self#getFilename in
619 output_string oc (buffer#get_text ~start:buffer#start_iter
620 ~stop:buffer#end_iter ());
622 buffer#set_modified false
624 method private _saveToBackupFile () =
625 if buffer#modified then
627 let f = self#ppFilename ^ "~" in
628 let oc = open_out f in
629 output_string oc (buffer#get_text ~start:buffer#start_iter
630 ~stop:buffer#end_iter ());
632 HLog.debug ("backup " ^ f ^ " saved")
635 method private goto_top =
637 let rec last x = function
639 | hd::tl -> last hd tl
641 last self#status history
643 (* FIXME: this is not correct since there is no undo for
644 * library_objects.set_default... *)
645 MatitaSync.time_travel ~present:self#status ~past:init
647 method private reset_buffer =
649 history <- [ MatitaSync.init () ];
652 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
653 buffer#move_mark (`MARK locked_mark) ~where:buffer#start_iter
657 source_buffer#begin_not_undoable_action ();
658 buffer#delete ~start:buffer#start_iter ~stop:buffer#end_iter;
659 source_buffer#end_not_undoable_action ();
660 buffer#set_modified false;
663 let template = HExtlib.input_file BuildTimeConf.script_template in
664 buffer#insert ~iter:(buffer#get_iter `START) template;
665 guistuff.filenamedata <-
666 (None,MatitamakeLib.development_for_dir (Unix.getcwd ()));
667 buffer#set_modified false;
668 set_star (Filename.basename self#ppFilename) false
670 method goto (pos: [`Top | `Bottom | `Cursor]) () =
671 let old_locked_mark =
673 (buffer#create_mark ~name:"old_locked_mark"
674 ~left_gravity:true (buffer#get_iter_at_mark (`MARK locked_mark))) in
675 let getpos _ = buffer#get_iter_at_mark (`MARK locked_mark) in
676 let getoldpos _ = buffer#get_iter_at_mark old_locked_mark in
677 let dispose_old_locked_mark () = buffer#delete_mark old_locked_mark in
680 dispose_old_locked_mark ();
688 let newpos = getpos () in
689 if (getoldpos ())#compare newpos < 0 then
691 buffer#move_mark old_locked_mark newpos;
696 dispose_old_locked_mark ();
699 | Margin -> dispose_old_locked_mark (); self#notify
700 | exc -> dispose_old_locked_mark (); self#notify; raise exc)
702 let locked_iter () = buffer#get_iter_at_mark (`NAME "locked") in
703 let cursor_iter () = buffer#get_iter_at_mark `INSERT in
706 (buffer#create_mark ~name:"initial_insert"
707 ~left_gravity:true (cursor_iter ())) in
708 let dispose_remember () = buffer#delete_mark remember in
709 let remember_iter () =
710 buffer#get_iter_at_mark (`NAME "initial_insert") in
711 let cmp () = (locked_iter ())#offset - (remember_iter ())#offset in
713 let forward_until_cursor () = (* go forward until locked > cursor *)
716 if cmp () < 0 && (getoldpos ())#compare (getpos ()) < 0
719 buffer#move_mark old_locked_mark (getpos ());
725 let rec back_until_cursor len = (* go backward until locked < cursor *)
727 statements, (status::_ as history) when len <= 0 ->
728 self#_retract (icmp - len) status statements history
729 | statement::tl1, _::tl2 ->
730 back_until_cursor (len - String.length statement) (tl1,tl2)
731 | _,_ -> assert false
735 if icmp < 0 then (* locked < cursor *)
736 (forward_until_cursor (); self#notify)
737 else if icmp > 0 then (* locked > cursor *)
738 (back_until_cursor icmp (statements,history); self#notify)
739 else (* cursor = locked *)
743 dispose_old_locked_mark ();
745 | Margin -> dispose_remember (); dispose_old_locked_mark (); self#notify
746 | exc -> dispose_remember (); dispose_old_locked_mark ();
747 self#notify; raise exc)
749 method onGoingProof () =
750 match self#status.proof_status with
751 | No_proof | Proof _ -> false
752 | Incomplete_proof _ -> true
753 | Intermediate _ -> assert false
755 (* method proofStatus = MatitaTypes.get_proof_status self#status *)
756 method proofMetasenv = GrafiteTypes.get_proof_metasenv self#status
757 method proofContext = GrafiteTypes.get_proof_context self#status userGoal
758 method proofConclusion= GrafiteTypes.get_proof_conclusion self#status userGoal
759 method stack = GrafiteTypes.get_stack self#status
760 method setGoal n = userGoal <- n
761 method goal = userGoal
764 let s = self#getFuture in
765 let rec is_there_and_executable s =
766 if Pcre.pmatch ~rex:only_dust_RE s then raise Margin;
767 let st = GrafiteParser.parse_statement (Ulexing.from_utf8_string s) in
769 | GrafiteAst.Comment (loc,_)->
770 let parsed_text_length = snd (HExtlib.loc_of_floc loc) in
771 let remain_len = String.length s - parsed_text_length in
772 let next = String.sub s parsed_text_length remain_len in
773 is_there_and_executable next
774 | GrafiteAst.Executable (loc, ex) -> false
777 is_there_and_executable s
779 | CicNotationParser.Parse_error _ -> false
780 | Margin | End_of_file -> true
784 HLog.debug "script status:";
785 HLog.debug ("history size: " ^ string_of_int (List.length history));
786 HLog.debug (sprintf "%d statements:" (List.length statements));
787 List.iter HLog.debug statements;
788 HLog.debug ("Current file name: " ^
789 (match guistuff.filenamedata with
790 |None,_ -> "[ no name ]"
795 let _script = ref None
797 let script ~source_view ~mathviewer ~urichooser ~develcreator ~ask_confirmation ~set_star ()
800 ~source_view ~mathviewer ~ask_confirmation ~urichooser ~develcreator ~set_star ()
805 let current () = match !_script with None -> assert false | Some s -> s