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"
49 let comment_RE = Pcre.regexp "\\(\\*(.|\n)*\\*\\)\n?" ~flags:[`UNGREEDY]
52 if Pcre.pmatch ~rex:multiline_RE str then
53 "\n(** " ^ (Pcre.replace ~rex:newline_RE str) ^ " *)"
55 "\n(**\n" ^ str ^ "\n*)"
57 let strip_comments str =
58 Pcre.qreplace ~templ:"\n" ~pat:"\n\n" (Pcre.qreplace ~rex:comment_RE str)
62 let s = Pcre.replace ~rex:heading_nl_RE s in
64 let nl_pos = String.index s '\n' in
69 mathviewer:MatitaTypes.mathViewer;
70 urichooser: NReference.reference list -> NReference.reference list;
71 ask_confirmation: title:string -> message:string -> [`YES | `NO | `CANCEL];
74 let eval_with_engine include_paths guistuff grafite_status user_goal
75 skipped_txt nonskipped_txt st
77 let parsed_text_length =
78 String.length skipped_txt + String.length nonskipped_txt
80 let text = skipped_txt ^ nonskipped_txt in
81 let prefix_len = MatitaGtkMisc.utf8_string_length skipped_txt in
82 let enriched_history_fragment =
83 MatitaEngine.eval_ast ~include_paths ~do_heavy_checks:(Helm_registry.get_bool
84 "matita.do_heavy_checks")
85 grafite_status (text,prefix_len,st)
87 let enriched_history_fragment = List.rev enriched_history_fragment in
91 (fun (acc, to_prepend) (status,alias) ->
93 | None -> (status,to_prepend ^ nonskipped_txt)::acc,""
95 let newtxt = GrafiteAstPp.pp_alias value in
96 (status,to_prepend ^ newtxt ^ "\n")::acc, "")
97 ([],skipped_txt) enriched_history_fragment
99 res,"",parsed_text_length
102 (* this function calls the parser in a way that it does not perform inclusions,
103 * so that we can ensure the inclusion is performed after the included file
104 * is compiled (if needed). matitac does not need that, since it compiles files
105 * in the good order, here files may be compiled on demand. *)
106 let wrap_with_make include_paths f x =
108 GrafiteParser.LSome (GrafiteAst.Executable (_,GrafiteAst.NCommand
109 (_,GrafiteAst.Include (_,_,mafilename)))) as cmd ->
110 let root, buri, _, tgt =
111 try Librarian.baseuri_of_script ~include_paths mafilename
112 with Librarian.NoRootFor _ ->
113 HLog.error ("The included file '"^mafilename^"' has no root file,");
114 HLog.error "please create it.";
115 raise (Failure ("No root file for "^mafilename))
117 if MatitacLib.Make.make root [tgt] then
119 else raise (Failure ("Compiling: " ^ tgt))
123 let pp_eager_statement_ast = GrafiteAstPp.pp_statement
125 let eval_nmacro include_paths (buffer : GText.buffer) guistuff grafite_status user_goal unparsed_text parsed_text script mac =
126 let parsed_text_length = String.length parsed_text in
128 | TA.Screenshot (_,name) ->
129 let status = script#grafite_status in
130 let _,_,menv,subst,_ = status#obj in
131 let name = Filename.dirname (script#filename) ^ "/" ^ name in
133 let selected = Continuationals.Stack.head_goals status#stack in
134 List.filter (fun x,_ -> List.mem x selected) menv
136 guistuff.mathviewer#screenshot status sequents menv subst name;
137 [status, parsed_text], "", parsed_text_length
139 let status = script#grafite_status in
140 let _,_,menv,subst,_ = status#obj in
142 try let _,(_,ctx,_) = List.hd menv in ctx
143 with Failure "hd" -> []
145 let m, s, status, t =
146 GrafiteDisambiguate.disambiguate_nterm
147 None status ctx menv subst (parsed_text,parsed_text_length,
148 NotationPt.Cast (t,NotationPt.Implicit `JustOne))
149 (* XXX use the metasenv, if possible *)
151 guistuff.mathviewer#show_entry (`NCic (t,ctx,m,s));
152 [status, parsed_text], "", parsed_text_length
153 | TA.NIntroGuess _loc ->
154 let names_ref = ref [] in
156 NTactics.intros_tac ~names_ref [] script#grafite_status
158 let rex = Pcre.regexp ~flags:[`MULTILINE] "\\A([\\n\\t\\r ]*).*\\Z" in
159 let nl = Pcre.replace ~rex ~templ:"$1" parsed_text in
160 [s, nl ^ "#" ^ String.concat " " !names_ref ^ ";"], "", parsed_text_length
161 | TA.NAutoInteractive (_loc, (None,a)) ->
162 let trace_ref = ref [] in
165 ~params:(None,a) ~trace_ref script#grafite_status
168 try List.assoc "depth" a
171 let trace = "/"^(if int_of_string depth > 1 then depth else "")^"/ by " in
173 match !trace_ref with
177 (HExtlib.filter_map (function
178 | NotationPt.NRef r -> Some (NCicPp.r2s true r)
182 let rex = Pcre.regexp ~flags:[`MULTILINE] "\\A([\\n\\t\\r ]*).*\\Z" in
183 let nl = Pcre.replace ~rex ~templ:"$1" parsed_text in
184 [s, nl ^ trace ^ thms ^ ";"], "", parsed_text_length
185 | TA.NAutoInteractive (_, (Some _,_)) -> assert false
187 let rec eval_executable include_paths (buffer : GText.buffer) guistuff
188 grafite_status user_goal unparsed_text skipped_txt nonskipped_txt
192 ignore (buffer#move_mark (`NAME "beginning_of_statement")
193 ~where:((buffer#get_iter_at_mark (`NAME "locked"))#forward_chars
194 (Glib.Utf8.length skipped_txt))) ;
195 eval_with_engine include_paths
196 guistuff grafite_status user_goal skipped_txt nonskipped_txt
197 (TA.Executable (loc, ex))
199 MatitaTypes.Cancel -> [], "", 0
200 | GrafiteEngine.NMacro (_loc,macro) ->
201 eval_nmacro include_paths buffer guistuff grafite_status
202 user_goal unparsed_text (skipped_txt ^ nonskipped_txt) script macro
205 and eval_statement include_paths (buffer : GText.buffer) guistuff
206 grafite_status user_goal script statement
208 let st,unparsed_text =
211 if Pcre.pmatch ~rex:only_dust_RE text then raise Margin;
213 wrap_with_make include_paths
214 (GrafiteParser.parse_statement grafite_status)
215 (Ulexing.from_utf8_string text)
218 | `Ast (st, text) -> st, text
220 let text_of_loc floc =
221 let nonskipped_txt,_ = MatitaGtkMisc.utf8_parsed_text unparsed_text floc in
222 let start, stop = HExtlib.loc_of_floc floc in
223 let floc = HExtlib.floc_of_loc (0, start) in
224 let skipped_txt,_ = MatitaGtkMisc.utf8_parsed_text unparsed_text floc in
225 let floc = HExtlib.floc_of_loc (0, stop) in
226 let txt,len = MatitaGtkMisc.utf8_parsed_text unparsed_text floc in
227 txt,nonskipped_txt,skipped_txt,len
230 | GrafiteParser.LNone loc ->
231 let parsed_text, _, _, parsed_text_length = text_of_loc loc in
232 [grafite_status,parsed_text],"",
234 | GrafiteParser.LSome (GrafiteAst.Executable (loc, ex)) ->
235 let _, nonskipped, skipped, parsed_text_length = text_of_loc loc in
236 eval_executable include_paths buffer guistuff
237 grafite_status user_goal unparsed_text skipped nonskipped script ex loc
238 | GrafiteParser.LSome (GrafiteAst.Comment (loc, GrafiteAst.Code (_, ex)))
239 when Helm_registry.get_bool "matita.execcomments" ->
240 let _, nonskipped, skipped, parsed_text_length = text_of_loc loc in
241 eval_executable include_paths buffer guistuff
242 grafite_status user_goal unparsed_text skipped nonskipped script ex loc
243 | GrafiteParser.LSome (GrafiteAst.Comment (loc, _)) ->
244 let parsed_text, _, _, parsed_text_length = text_of_loc loc in
245 let remain_len = String.length unparsed_text - parsed_text_length in
246 let s = String.sub unparsed_text parsed_text_length remain_len in
249 eval_statement include_paths buffer guistuff
250 grafite_status user_goal script (`Raw s)
252 HExtlib.Localized (floc, exn) ->
253 HExtlib.raise_localized_exception
254 ~offset:(MatitaGtkMisc.utf8_string_length parsed_text) floc exn
255 | MultiPassDisambiguator.DisambiguationError (offset,errorll) ->
257 (MultiPassDisambiguator.DisambiguationError
258 (offset+parsed_text_length, errorll))
260 assert (text=""); (* no macros inside comments, please! *)
262 | (statuses,text)::tl ->
263 (statuses,parsed_text ^ text)::tl,"",parsed_text_length + len
266 let fresh_script_id =
270 class script ~(source_view: GSourceView2.source_view)
271 ~(mathviewer: MatitaTypes.mathViewer)
276 let buffer = source_view#buffer in
277 let source_buffer = source_view#source_buffer in
278 let initial_statuses current baseuri =
279 let empty_lstatus = new LexiconTypes.status in
282 NCicLibrary.time_travel
283 ((new GrafiteTypes.status current#baseuri)#set_lstatus current#lstatus);
284 (* CSC: there is a known bug in invalidation; temporary fix here *)
285 NCicEnvironment.invalidate ()
287 let lexicon_status = empty_lstatus in
288 let grafite_status = (new GrafiteTypes.status baseuri)#set_lstatus lexicon_status#lstatus in
291 let read_include_paths file =
293 let root, _buri, _fname, _tgt =
294 Librarian.baseuri_of_script ~include_paths:[] file
297 Str.split (Str.regexp " ")
298 (List.assoc "include_paths" (Librarian.load_root_file (root^"/root")))
300 List.iter (HLog.debug) rc; rc
301 with Librarian.NoRootFor _ | Not_found -> []
303 let default_buri = "cic:/matita/tests" in
304 let default_fname = ".unnamed.ma" in
306 val mutable include_paths_ = []
308 val scriptId = fresh_script_id ()
311 mathviewer = mathviewer;
312 urichooser = urichooser;
313 ask_confirmation = ask_confirmation;
316 val mutable filename_ = (None : string option)
318 method has_name = filename_ <> None
320 method include_paths =
322 Helm_registry.get_list Helm_registry.string "matita.includes"
324 method private curdir =
326 let root, _buri, _fname, _tgt =
327 Librarian.baseuri_of_script ~include_paths:self#include_paths
331 with Librarian.NoRootFor _ -> Sys.getcwd ()
333 method buri_of_current_file =
335 | None -> default_buri
338 let _root, buri, _fname, _tgt =
339 Librarian.baseuri_of_script ~include_paths:self#include_paths f
342 with Librarian.NoRootFor _ -> default_buri
344 method filename = match filename_ with None -> default_fname | Some f -> f
347 ignore (GMain.Timeout.add ~ms:300000
348 ~callback:(fun _ -> self#_saveToBackupFile ();true));
349 ignore (buffer#connect#modified_changed
350 (fun _ -> set_star buffer#modified))
352 val mutable statements = [] (** executed statements *)
354 val mutable history = [ initial_statuses None default_buri ]
355 (** list of states before having executed statements. Head element of this
356 * list is the current state, last element is the state at the beginning of
358 * Invariant: this list length is 1 + length of statements *)
360 (** goal as seen by the user (i.e. metano corresponding to current tab) *)
361 val mutable userGoal = (None : int option)
363 (** text mark and tag representing locked part of a script *)
365 buffer#create_mark ~name:"locked" ~left_gravity:true buffer#start_iter
366 val beginning_of_statement_mark =
367 buffer#create_mark ~name:"beginning_of_statement"
368 ~left_gravity:true buffer#start_iter
369 val locked_tag = buffer#create_tag [`BACKGROUND "lightblue"; `EDITABLE false]
370 val error_tag = buffer#create_tag [`UNDERLINE `SINGLE; `FOREGROUND "red"]
372 method locked_mark = locked_mark
373 method locked_tag = locked_tag
374 method error_tag = error_tag
376 (* history can't be empty, the invariant above grant that it contains at
377 * least the init grafite_status *)
378 method grafite_status = match history with s::_ -> s | _ -> assert false
380 method private _advance ?statement () =
381 let s = match statement with Some s -> s | None -> self#getFuture in
382 if self#bos then LibraryClean.clean_baseuris [self#buri_of_current_file];
383 HLog.debug ("evaluating: " ^ first_line s ^ " ...");
384 let time1 = Unix.gettimeofday () in
385 let entries, newtext, parsed_len =
387 eval_statement self#include_paths buffer guistuff
388 self#grafite_status userGoal self (`Raw s)
389 with End_of_file -> raise Margin
391 let time2 = Unix.gettimeofday () in
392 HLog.debug ("... done in " ^ string_of_float (time2 -. time1) ^ "s");
393 let new_statuses, new_statements =
394 let statuses, texts = List.split entries in
397 history <- new_statuses @ history;
398 statements <- new_statements @ statements;
399 let start = buffer#get_iter_at_mark (`MARK locked_mark) in
400 let new_text = String.concat "" (List.rev new_statements) in
401 if statement <> None then
402 buffer#insert ~iter:start new_text
404 let parsed_text = String.sub s 0 parsed_len in
405 if new_text <> parsed_text then begin
406 let stop = start#copy#forward_chars (Glib.Utf8.length parsed_text) in
407 buffer#delete ~start ~stop;
408 buffer#insert ~iter:start new_text;
411 self#moveMark (Glib.Utf8.length new_text);
412 buffer#insert ~iter:(buffer#get_iter_at_mark (`MARK locked_mark)) newtext;
413 (* here we need to set the Goal in case we are going to cursor (or to
414 bottom) and we will face a macro *)
417 method private _retract offset grafite_status new_statements new_history =
418 NCicLibrary.time_travel grafite_status;
419 statements <- new_statements;
420 history <- new_history;
421 self#moveMark (- offset)
423 method advance ?statement () =
425 self#_advance ?statement ();
428 | Margin -> self#notify
429 | Not_found -> assert false
430 | Invalid_argument "Array.make" -> HLog.error "The script is too big!\n"
431 | exc -> self#notify; raise exc
435 let cmp,new_statements,new_history,grafite_status =
436 match statements,history with
437 stat::statements, _::(status::_ as history) ->
438 assert (Glib.Utf8.validate stat);
439 Glib.Utf8.length stat, statements, history, status
440 | [],[_] -> raise Margin
441 | _,_ -> assert false
443 self#_retract cmp grafite_status new_statements
447 | Margin -> self#notify
448 | Invalid_argument "Array.make" -> HLog.error "The script is too big!\n"
449 | exc -> self#notify; raise exc
451 method private getFuture =
452 let lock = buffer#get_iter_at_mark (`MARK locked_mark) in
453 let text = buffer#get_text ~start:lock ~stop:buffer#end_iter () in
456 method expandAllVirtuals =
457 let lock = buffer#get_iter_at_mark (`MARK locked_mark) in
458 let text = buffer#get_text ~start:lock ~stop:buffer#end_iter () in
459 buffer#delete ~start:lock ~stop:buffer#end_iter;
460 let text = Pcre.replace ~pat:":=" ~templ:"\\def" text in
461 let text = Pcre.replace ~pat:"->" ~templ:"\\to" text in
462 let text = Pcre.replace ~pat:"=>" ~templ:"\\Rightarrow" text in
464 Pcre.substitute_substrings
466 let pristine = Pcre.get_substring str 0 in
468 if pristine.[0] = ' ' then
469 String.sub pristine 1 (String.length pristine -1)
473 if input.[String.length input-1] = ' ' then
474 String.sub input 0 (String.length input -1)
478 if input = "\\forall" ||
479 input = "\\lambda" ||
480 input = "\\exists" then "","" else " ", " "
483 before ^ Glib.Utf8.from_unichar
484 (snd (Virtuals.symbol_of_virtual input)) ^ after
485 with Virtuals.Not_a_virtual -> pristine)
486 ~pat:" ?\\\\[a-zA-Z]+ ?" text
488 buffer#insert ~iter:lock text
490 (** @param rel_offset relative offset from current position of locked_mark *)
491 method private moveMark rel_offset =
492 let mark = `MARK locked_mark in
493 let old_insert = buffer#get_iter_at_mark `INSERT in
494 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
495 let current_mark_pos = buffer#get_iter_at_mark mark in
497 match rel_offset with
498 | 0 -> current_mark_pos
499 | n when n > 0 -> current_mark_pos#forward_chars n
500 | n (* when n < 0 *) -> current_mark_pos#backward_chars (abs n)
502 buffer#move_mark mark ~where:new_mark_pos;
503 buffer#apply_tag locked_tag ~start:buffer#start_iter ~stop:new_mark_pos;
504 buffer#move_mark `INSERT old_insert;
505 let mark_position = buffer#get_iter_at_mark mark in
506 if source_view#move_mark_onscreen mark then
508 buffer#move_mark mark mark_position;
509 source_view#scroll_to_mark ~use_align:true ~xalign:1.0 ~yalign:0.1 mark;
511 while Glib.Main.pending () do ignore(Glib.Main.iteration false); done
513 method clean_dirty_lock =
514 let lock_mark_iter = buffer#get_iter_at_mark (`MARK locked_mark) in
515 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
516 buffer#apply_tag locked_tag ~start:buffer#start_iter ~stop:lock_mark_iter
518 val mutable observers = []
520 method addObserver (o: GrafiteTypes.status -> unit) =
521 observers <- o :: observers
523 method private notify =
524 let grafite_status = self#grafite_status in
525 List.iter (fun o -> o grafite_status) observers
527 method loadFromString s =
530 buffer#set_modified true
532 method loadFromFile f =
533 buffer#set_text (HExtlib.input_file f);
535 buffer#set_modified false
537 method assignFileName file =
540 | Some f -> Some (Librarian.absolutize f)
545 (match file with Some file -> read_include_paths file | None -> []);
547 Sys.chdir self#curdir;
548 HLog.debug ("Moving to " ^ Sys.getcwd ())
550 method saveToFile () =
551 if self#has_name then
552 let oc = open_out self#filename in
553 output_string oc (buffer#get_text ~start:buffer#start_iter
554 ~stop:buffer#end_iter ());
557 buffer#set_modified false
559 HLog.error "Can't save, no filename selected"
561 method private _saveToBackupFile () =
562 if buffer#modified then
564 let f = self#filename in
565 let oc = open_out f in
566 output_string oc (buffer#get_text ~start:buffer#start_iter
567 ~stop:buffer#end_iter ());
569 HLog.debug ("backup " ^ f ^ " saved")
572 method private reset_buffer =
574 history <- [ initial_statuses (Some self#grafite_status) self#buri_of_current_file ];
577 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
578 buffer#move_mark (`MARK locked_mark) ~where:buffer#start_iter
582 source_buffer#begin_not_undoable_action ();
583 buffer#delete ~start:buffer#start_iter ~stop:buffer#end_iter;
584 source_buffer#end_not_undoable_action ();
585 buffer#set_modified false;
588 let template = HExtlib.input_file BuildTimeConf.script_template in
589 buffer#insert ~iter:(buffer#get_iter `START) template;
590 buffer#set_modified false;
593 method goto (pos: [`Top | `Bottom | `Cursor]) () =
595 let old_locked_mark =
597 (buffer#create_mark ~name:"old_locked_mark"
598 ~left_gravity:true (buffer#get_iter_at_mark (`MARK locked_mark))) in
599 let getpos _ = buffer#get_iter_at_mark (`MARK locked_mark) in
600 let getoldpos _ = buffer#get_iter_at_mark old_locked_mark in
601 let dispose_old_locked_mark () = buffer#delete_mark old_locked_mark in
604 dispose_old_locked_mark ();
611 let newpos = getpos () in
612 if (getoldpos ())#compare newpos < 0 then
614 buffer#move_mark old_locked_mark newpos;
619 dispose_old_locked_mark ();
622 | Margin -> dispose_old_locked_mark (); self#notify
623 | exc -> dispose_old_locked_mark (); self#notify; raise exc)
625 let locked_iter () = buffer#get_iter_at_mark (`NAME "locked") in
626 let cursor_iter () = buffer#get_iter_at_mark `INSERT in
629 (buffer#create_mark ~name:"initial_insert"
630 ~left_gravity:true (cursor_iter ())) in
631 let dispose_remember () = buffer#delete_mark remember in
632 let remember_iter () =
633 buffer#get_iter_at_mark (`NAME "initial_insert") in
634 let cmp () = (locked_iter ())#offset - (remember_iter ())#offset in
636 let forward_until_cursor () = (* go forward until locked > cursor *)
639 if cmp () < 0 && (getoldpos ())#compare (getpos ()) < 0
642 buffer#move_mark old_locked_mark (getpos ());
648 let rec back_until_cursor len = (* go backward until locked < cursor *)
650 statements, ((grafite_status)::_ as history)
652 self#_retract (icmp - len) grafite_status statements
654 | statement::tl1, _::tl2 ->
655 back_until_cursor (len - MatitaGtkMisc.utf8_string_length statement) (tl1,tl2)
656 | _,_ -> assert false
660 if icmp < 0 then (* locked < cursor *)
661 (forward_until_cursor (); self#notify)
662 else if icmp > 0 then (* locked > cursor *)
663 (back_until_cursor icmp (statements,history); self#notify)
664 else (* cursor = locked *)
668 dispose_old_locked_mark ();
670 | Margin -> dispose_remember (); dispose_old_locked_mark (); self#notify
671 | exc -> dispose_remember (); dispose_old_locked_mark ();
672 self#notify; raise exc)
673 with Invalid_argument "Array.make" ->
674 HLog.error "The script is too big!\n"
676 method stack = (assert false : Continuationals.Stack.t) (* MATITA 1.0 GrafiteTypes.get_stack
677 self#grafite_status *)
678 method setGoal n = userGoal <- n
679 method goal = userGoal
687 let rec is_there_only_comments lexicon_status s =
688 if Pcre.pmatch ~rex:only_dust_RE s then raise Margin;
690 GrafiteParser.parse_statement lexicon_status (Ulexing.from_utf8_string s)
692 | GrafiteParser.LSome (GrafiteAst.Comment (loc,_)) ->
693 let _,parsed_text_length = MatitaGtkMisc.utf8_parsed_text s loc in
694 (* CSC: why +1 in the following lines ???? *)
695 let parsed_text_length = parsed_text_length + 1 in
696 let remain_len = String.length s - parsed_text_length in
697 let next = String.sub s parsed_text_length remain_len in
698 is_there_only_comments lexicon_status next
699 | GrafiteParser.LNone _
700 | GrafiteParser.LSome (GrafiteAst.Executable _) -> false
702 try is_there_only_comments self#grafite_status self#getFuture
704 | NCicLibrary.IncludedFileNotCompiled _
705 | HExtlib.Localized _
706 | CicNotationParser.Parse_error _ -> false
707 | Margin | End_of_file -> true
708 | Invalid_argument "Array.make" -> false
712 HLog.debug "script status:";
713 HLog.debug ("history size: " ^ string_of_int (List.length history));
714 HLog.debug (sprintf "%d statements:" (List.length statements));
715 List.iter HLog.debug statements;
716 HLog.debug ("Current file name: " ^ self#filename);
719 let _script = ref None
721 let script ~source_view ~mathviewer ~urichooser ~ask_confirmation ~set_star ()
724 ~source_view ~mathviewer ~ask_confirmation ~urichooser ~set_star ()
729 let current () = match !_script with None -> assert false | Some s -> s