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 urichooser: NReference.reference list -> NReference.reference list;
70 ask_confirmation: title:string -> message:string -> [`YES | `NO | `CANCEL];
73 let eval_with_engine include_paths guistuff grafite_status user_goal
74 skipped_txt nonskipped_txt st
76 let parsed_text_length =
77 String.length skipped_txt + String.length nonskipped_txt
79 let text = skipped_txt ^ nonskipped_txt in
80 let prefix_len = MatitaGtkMisc.utf8_string_length skipped_txt in
81 let enriched_history_fragment =
82 MatitaEngine.eval_ast ~include_paths ~do_heavy_checks:(Helm_registry.get_bool
83 "matita.do_heavy_checks")
84 grafite_status (text,prefix_len,st)
86 let enriched_history_fragment = List.rev enriched_history_fragment in
90 (fun (acc, to_prepend) (status,alias) ->
92 | None -> (status,to_prepend ^ nonskipped_txt)::acc,""
94 let newtxt = GrafiteAstPp.pp_alias value in
95 (status,to_prepend ^ newtxt ^ "\n")::acc, "")
96 ([],skipped_txt) enriched_history_fragment
98 res,"",parsed_text_length
101 let pp_eager_statement_ast = GrafiteAstPp.pp_statement
103 let eval_nmacro include_paths (buffer : GText.buffer) guistuff grafite_status user_goal unparsed_text parsed_text script mac =
104 let parsed_text_length = String.length parsed_text in
106 | TA.Screenshot (_,name) ->
107 let status = script#grafite_status in
108 let _,_,menv,subst,_ = status#obj in
109 let name = Filename.dirname (script#filename) ^ "/" ^ name in
111 let selected = Continuationals.Stack.head_goals status#stack in
112 List.filter (fun x,_ -> List.mem x selected) menv
114 CicMathView.screenshot status sequents menv subst name;
115 [status, parsed_text], "", parsed_text_length
117 let status = script#grafite_status in
118 let _,_,menv,subst,_ = status#obj in
120 match Continuationals.Stack.head_goals status#stack with
125 "Many goals focused. Using the context of the first one\n";
126 let _, ctx, _ = NCicUtils.lookup_meta g menv in
128 let m, s, status, t =
129 GrafiteDisambiguate.disambiguate_nterm
130 status None ctx menv subst (parsed_text,parsed_text_length,
131 NotationPt.Cast (t,NotationPt.Implicit `JustOne))
132 (* XXX use the metasenv, if possible *)
134 MatitaMathView.show_entry (`NCic (t,ctx,m,s));
135 [status, parsed_text], "", parsed_text_length
136 | TA.NIntroGuess _loc ->
137 let names_ref = ref [] in
139 NTactics.intros_tac ~names_ref [] script#grafite_status
141 let rex = Pcre.regexp ~flags:[`MULTILINE] "\\A([\\n\\t\\r ]*).*\\Z" in
142 let nl = Pcre.replace ~rex ~templ:"$1" parsed_text in
143 [s, nl ^ "#" ^ String.concat " " !names_ref ^ ";"], "", parsed_text_length
144 | TA.NAutoInteractive (_loc, (None,a)) ->
145 let trace_ref = ref [] in
148 ~params:(None,a) ~trace_ref script#grafite_status
151 try List.assoc "depth" a
154 let trace = "/"^(if int_of_string depth > 1 then depth else "")^"/ by " in
156 match !trace_ref with
160 (HExtlib.filter_map (function
161 | NotationPt.NRef r -> Some (NCicPp.r2s true r)
165 let rex = Pcre.regexp ~flags:[`MULTILINE] "\\A([\\n\\t\\r ]*).*\\Z" in
166 let nl = Pcre.replace ~rex ~templ:"$1" parsed_text in
167 [s, nl ^ trace ^ thms ^ ";"], "", parsed_text_length
168 | TA.NAutoInteractive (_, (Some _,_)) -> assert false
170 let rec eval_executable include_paths (buffer : GText.buffer) guistuff
171 grafite_status user_goal unparsed_text skipped_txt nonskipped_txt
175 ignore (buffer#move_mark (`NAME "beginning_of_statement")
176 ~where:((buffer#get_iter_at_mark (`NAME "locked"))#forward_chars
177 (Glib.Utf8.length skipped_txt))) ;
178 eval_with_engine include_paths
179 guistuff grafite_status user_goal skipped_txt nonskipped_txt
180 (TA.Executable (loc, ex))
182 MatitaTypes.Cancel -> [], "", 0
183 | GrafiteEngine.NMacro (_loc,macro) ->
184 eval_nmacro include_paths buffer guistuff grafite_status
185 user_goal unparsed_text (skipped_txt ^ nonskipped_txt) script macro
188 and eval_statement include_paths (buffer : GText.buffer) guistuff
189 grafite_status user_goal script statement
191 let st,unparsed_text =
194 if Pcre.pmatch ~rex:only_dust_RE text then raise Margin;
196 GrafiteParser.parsable_statement grafite_status
197 (Ulexing.from_utf8_string text) in
198 let ast = MatitaEngine.get_ast grafite_status include_paths strm in
200 | `Ast (st, text) -> st, text
202 let text_of_loc floc =
203 let nonskipped_txt,_ = MatitaGtkMisc.utf8_parsed_text unparsed_text floc in
204 let start, stop = HExtlib.loc_of_floc floc in
205 let floc = HExtlib.floc_of_loc (0, start) in
206 let skipped_txt,_ = MatitaGtkMisc.utf8_parsed_text unparsed_text floc in
207 let floc = HExtlib.floc_of_loc (0, stop) in
208 let txt,len = MatitaGtkMisc.utf8_parsed_text unparsed_text floc in
209 txt,nonskipped_txt,skipped_txt,len
212 | GrafiteAst.Executable (loc, ex) ->
213 let _, nonskipped, skipped, parsed_text_length = text_of_loc loc in
214 eval_executable include_paths buffer guistuff
215 grafite_status user_goal unparsed_text skipped nonskipped script ex loc
216 | GrafiteAst.Comment (loc, GrafiteAst.Code (_, ex))
217 when Helm_registry.get_bool "matita.execcomments" ->
218 let _, nonskipped, skipped, parsed_text_length = text_of_loc loc in
219 eval_executable include_paths buffer guistuff
220 grafite_status user_goal unparsed_text skipped nonskipped script ex loc
221 | GrafiteAst.Comment (loc, _) ->
222 let parsed_text, _, _, parsed_text_length = text_of_loc loc in
223 let remain_len = String.length unparsed_text - parsed_text_length in
224 let s = String.sub unparsed_text parsed_text_length remain_len in
227 eval_statement include_paths buffer guistuff
228 grafite_status user_goal script (`Raw s)
230 HExtlib.Localized (floc, exn) ->
231 HExtlib.raise_localized_exception
232 ~offset:(MatitaGtkMisc.utf8_string_length parsed_text) floc exn
233 | MultiPassDisambiguator.DisambiguationError (offset,errorll) ->
235 (MultiPassDisambiguator.DisambiguationError
236 (offset+parsed_text_length, errorll))
238 assert (text=""); (* no macros inside comments, please! *)
240 | (statuses,text)::tl ->
241 (statuses,parsed_text ^ text)::tl,"",parsed_text_length + len
244 let fresh_script_id =
248 class script ~(source_view: GSourceView2.source_view)
253 let buffer = source_view#buffer in
254 let source_buffer = source_view#source_buffer in
255 let initial_statuses current baseuri =
256 let empty_lstatus = new GrafiteDisambiguate.status in
259 NCicLibrary.time_travel
260 ((new GrafiteTypes.status current#baseuri)#set_disambiguate_db current#disambiguate_db);
261 (* CSC: there is a known bug in invalidation; temporary fix here *)
262 NCicEnvironment.invalidate ()
264 let lexicon_status = empty_lstatus in
265 let grafite_status = (new GrafiteTypes.status baseuri)#set_disambiguate_db lexicon_status#disambiguate_db in
268 let read_include_paths file =
270 let root, _buri, _fname, _tgt =
271 Librarian.baseuri_of_script ~include_paths:[] file
274 Str.split (Str.regexp " ")
275 (List.assoc "include_paths" (Librarian.load_root_file (root^"/root")))
277 List.iter (HLog.debug) rc; rc
278 with Librarian.NoRootFor _ | Not_found -> []
280 let default_buri = "cic:/matita/tests" in
281 let default_fname = ".unnamed.ma" in
283 val mutable include_paths_ = []
285 val scriptId = fresh_script_id ()
288 urichooser = urichooser;
289 ask_confirmation = ask_confirmation;
292 val mutable filename_ = (None : string option)
294 method has_name = filename_ <> None
296 method include_paths =
298 Helm_registry.get_list Helm_registry.string "matita.includes"
300 method private curdir =
302 let root, _buri, _fname, _tgt =
303 Librarian.baseuri_of_script ~include_paths:self#include_paths
307 with Librarian.NoRootFor _ -> Sys.getcwd ()
309 method buri_of_current_file =
311 | None -> default_buri
314 let _root, buri, _fname, _tgt =
315 Librarian.baseuri_of_script ~include_paths:self#include_paths f
318 with Librarian.NoRootFor _ -> default_buri
320 method filename = match filename_ with None -> default_fname | Some f -> f
323 ignore (GMain.Timeout.add ~ms:300000
324 ~callback:(fun _ -> self#_saveToBackupFile ();true));
325 ignore (buffer#connect#modified_changed
326 (fun _ -> set_star buffer#modified))
328 val mutable statements = [] (** executed statements *)
330 val mutable history = [ initial_statuses None default_buri ]
331 (** list of states before having executed statements. Head element of this
332 * list is the current state, last element is the state at the beginning of
334 * Invariant: this list length is 1 + length of statements *)
336 (** goal as seen by the user (i.e. metano corresponding to current tab) *)
337 val mutable userGoal = (None : int option)
339 (** text mark and tag representing locked part of a script *)
341 buffer#create_mark ~name:"locked" ~left_gravity:true buffer#start_iter
342 val beginning_of_statement_mark =
343 buffer#create_mark ~name:"beginning_of_statement"
344 ~left_gravity:true buffer#start_iter
345 val locked_tag = buffer#create_tag [`BACKGROUND "lightblue"; `EDITABLE false]
346 val error_tag = buffer#create_tag [`UNDERLINE `SINGLE; `FOREGROUND "red"]
348 method locked_mark = locked_mark
349 method locked_tag = locked_tag
350 method error_tag = error_tag
352 (* history can't be empty, the invariant above grant that it contains at
353 * least the init grafite_status *)
354 method grafite_status = match history with s::_ -> s | _ -> assert false
356 method private _advance ?statement () =
357 let s = match statement with Some s -> s | None -> self#getFuture in
358 if self#bos then LibraryClean.clean_baseuris [self#buri_of_current_file];
359 HLog.debug ("evaluating: " ^ first_line s ^ " ...");
360 let time1 = Unix.gettimeofday () in
361 let entries, newtext, parsed_len =
363 eval_statement self#include_paths buffer guistuff
364 self#grafite_status userGoal self (`Raw s)
365 with End_of_file -> raise Margin
367 let time2 = Unix.gettimeofday () in
368 HLog.debug ("... done in " ^ string_of_float (time2 -. time1) ^ "s");
369 let new_statuses, new_statements =
370 let statuses, texts = List.split entries in
373 history <- new_statuses @ history;
374 statements <- new_statements @ statements;
375 let start = buffer#get_iter_at_mark (`MARK locked_mark) in
376 let new_text = String.concat "" (List.rev new_statements) in
377 if statement <> None then
378 buffer#insert ~iter:start new_text
380 let parsed_text = String.sub s 0 parsed_len in
381 if new_text <> parsed_text then begin
382 let stop = start#copy#forward_chars (Glib.Utf8.length parsed_text) in
383 buffer#delete ~start ~stop;
384 buffer#insert ~iter:start new_text;
387 self#moveMark (Glib.Utf8.length new_text);
388 buffer#insert ~iter:(buffer#get_iter_at_mark (`MARK locked_mark)) newtext;
389 (* here we need to set the Goal in case we are going to cursor (or to
390 bottom) and we will face a macro *)
393 method private _retract offset grafite_status new_statements new_history =
394 NCicLibrary.time_travel grafite_status;
395 statements <- new_statements;
396 history <- new_history;
397 self#moveMark (- offset)
399 method advance ?statement () =
401 self#_advance ?statement ();
404 | Margin -> self#notify
405 | Not_found -> assert false
406 | Invalid_argument "Array.make" -> HLog.error "The script is too big!\n"
407 | exc -> self#notify; raise exc
411 let cmp,new_statements,new_history,grafite_status =
412 match statements,history with
413 stat::statements, _::(status::_ as history) ->
414 assert (Glib.Utf8.validate stat);
415 Glib.Utf8.length stat, statements, history, status
416 | [],[_] -> raise Margin
417 | _,_ -> assert false
419 self#_retract cmp grafite_status new_statements
423 | Margin -> self#notify
424 | Invalid_argument "Array.make" -> HLog.error "The script is too big!\n"
425 | exc -> self#notify; raise exc
427 method private getFuture =
428 let lock = buffer#get_iter_at_mark (`MARK locked_mark) in
429 let text = buffer#get_text ~start:lock ~stop:buffer#end_iter () in
432 method expandAllVirtuals =
433 let lock = buffer#get_iter_at_mark (`MARK locked_mark) in
434 let text = buffer#get_text ~start:lock ~stop:buffer#end_iter () in
435 buffer#delete ~start:lock ~stop:buffer#end_iter;
436 let text = Pcre.replace ~pat:":=" ~templ:"\\def" text in
437 let text = Pcre.replace ~pat:"->" ~templ:"\\to" text in
438 let text = Pcre.replace ~pat:"=>" ~templ:"\\Rightarrow" text in
440 Pcre.substitute_substrings
442 let pristine = Pcre.get_substring str 0 in
444 if pristine.[0] = ' ' then
445 String.sub pristine 1 (String.length pristine -1)
449 if input.[String.length input-1] = ' ' then
450 String.sub input 0 (String.length input -1)
454 if input = "\\forall" ||
455 input = "\\lambda" ||
456 input = "\\exists" then "","" else " ", " "
459 before ^ Glib.Utf8.from_unichar
460 (snd (Virtuals.symbol_of_virtual input)) ^ after
461 with Virtuals.Not_a_virtual -> pristine)
462 ~pat:" ?\\\\[a-zA-Z]+ ?" text
464 buffer#insert ~iter:lock text
466 (** @param rel_offset relative offset from current position of locked_mark *)
467 method private moveMark rel_offset =
468 let mark = `MARK locked_mark in
469 let old_insert = buffer#get_iter_at_mark `INSERT in
470 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
471 let current_mark_pos = buffer#get_iter_at_mark mark in
473 match rel_offset with
474 | 0 -> current_mark_pos
475 | n when n > 0 -> current_mark_pos#forward_chars n
476 | n (* when n < 0 *) -> current_mark_pos#backward_chars (abs n)
478 buffer#move_mark mark ~where:new_mark_pos;
479 buffer#apply_tag locked_tag ~start:buffer#start_iter ~stop:new_mark_pos;
480 buffer#move_mark `INSERT old_insert;
481 let mark_position = buffer#get_iter_at_mark mark in
482 if source_view#move_mark_onscreen mark then
484 buffer#move_mark mark mark_position;
485 source_view#scroll_to_mark ~use_align:true ~xalign:1.0 ~yalign:0.1 mark;
487 while Glib.Main.pending () do ignore(Glib.Main.iteration false); done
489 method clean_dirty_lock =
490 let lock_mark_iter = buffer#get_iter_at_mark (`MARK locked_mark) in
491 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
492 buffer#apply_tag locked_tag ~start:buffer#start_iter ~stop:lock_mark_iter
494 val mutable observers = []
496 method addObserver (o: GrafiteTypes.status -> unit) =
497 observers <- o :: observers
499 method private notify =
500 let grafite_status = self#grafite_status in
501 List.iter (fun o -> o grafite_status) observers
503 method loadFromString s =
506 buffer#set_modified true
508 method loadFromFile f =
509 buffer#set_text (HExtlib.input_file f);
511 buffer#set_modified false
513 method assignFileName file =
516 | Some f -> Some (Librarian.absolutize f)
521 (match file with Some file -> read_include_paths file | None -> []);
523 Sys.chdir self#curdir;
524 HLog.debug ("Moving to " ^ Sys.getcwd ())
526 method saveToFile () =
527 if self#has_name then
528 let oc = open_out self#filename in
529 output_string oc (buffer#get_text ~start:buffer#start_iter
530 ~stop:buffer#end_iter ());
533 buffer#set_modified false
535 HLog.error "Can't save, no filename selected"
537 method private _saveToBackupFile () =
538 if buffer#modified then
540 let f = self#filename in
541 let oc = open_out f in
542 output_string oc (buffer#get_text ~start:buffer#start_iter
543 ~stop:buffer#end_iter ());
545 HLog.debug ("backup " ^ f ^ " saved")
548 method private reset_buffer =
550 history <- [ initial_statuses (Some self#grafite_status) self#buri_of_current_file ];
553 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
554 buffer#move_mark (`MARK locked_mark) ~where:buffer#start_iter
558 source_buffer#begin_not_undoable_action ();
559 buffer#delete ~start:buffer#start_iter ~stop:buffer#end_iter;
560 source_buffer#end_not_undoable_action ();
561 buffer#set_modified false;
564 let template = HExtlib.input_file BuildTimeConf.script_template in
565 buffer#insert ~iter:(buffer#get_iter `START) template;
566 buffer#set_modified false;
569 method goto (pos: [`Top | `Bottom | `Cursor]) () =
571 let old_locked_mark =
573 (buffer#create_mark ~name:"old_locked_mark"
574 ~left_gravity:true (buffer#get_iter_at_mark (`MARK locked_mark))) in
575 let getpos _ = buffer#get_iter_at_mark (`MARK locked_mark) in
576 let getoldpos _ = buffer#get_iter_at_mark old_locked_mark in
577 let dispose_old_locked_mark () = buffer#delete_mark old_locked_mark in
580 dispose_old_locked_mark ();
587 let newpos = getpos () in
588 if (getoldpos ())#compare newpos < 0 then
590 buffer#move_mark old_locked_mark newpos;
595 dispose_old_locked_mark ();
598 | Margin -> dispose_old_locked_mark (); self#notify
599 | exc -> dispose_old_locked_mark (); self#notify; raise exc)
601 let locked_iter () = buffer#get_iter_at_mark (`NAME "locked") in
602 let cursor_iter () = buffer#get_iter_at_mark `INSERT in
605 (buffer#create_mark ~name:"initial_insert"
606 ~left_gravity:true (cursor_iter ())) in
607 let dispose_remember () = buffer#delete_mark remember in
608 let remember_iter () =
609 buffer#get_iter_at_mark (`NAME "initial_insert") in
610 let cmp () = (locked_iter ())#offset - (remember_iter ())#offset in
612 let forward_until_cursor () = (* go forward until locked > cursor *)
615 if cmp () < 0 && (getoldpos ())#compare (getpos ()) < 0
618 buffer#move_mark old_locked_mark (getpos ());
624 let rec back_until_cursor len = (* go backward until locked < cursor *)
626 statements, ((grafite_status)::_ as history)
628 self#_retract (icmp - len) grafite_status statements
630 | statement::tl1, _::tl2 ->
631 back_until_cursor (len - MatitaGtkMisc.utf8_string_length statement) (tl1,tl2)
632 | _,_ -> assert false
636 if icmp < 0 then (* locked < cursor *)
637 (forward_until_cursor (); self#notify)
638 else if icmp > 0 then (* locked > cursor *)
639 (back_until_cursor icmp (statements,history); self#notify)
640 else (* cursor = locked *)
644 dispose_old_locked_mark ();
646 | Margin -> dispose_remember (); dispose_old_locked_mark (); self#notify
647 | exc -> dispose_remember (); dispose_old_locked_mark ();
648 self#notify; raise exc)
649 with Invalid_argument "Array.make" ->
650 HLog.error "The script is too big!\n"
652 method stack = (assert false : Continuationals.Stack.t) (* MATITA 1.0 GrafiteTypes.get_stack
653 self#grafite_status *)
654 method setGoal n = userGoal <- n
655 method goal = userGoal
663 let rec is_there_only_comments lexicon_status s =
664 if Pcre.pmatch ~rex:only_dust_RE s then raise Margin;
666 GrafiteParser.parsable_statement lexicon_status
667 (Ulexing.from_utf8_string s)in
668 match GrafiteParser.parse_statement lexicon_status strm with
669 | GrafiteAst.Comment (loc,_) ->
670 let _,parsed_text_length = MatitaGtkMisc.utf8_parsed_text s loc in
671 (* CSC: why +1 in the following lines ???? *)
672 let parsed_text_length = parsed_text_length + 1 in
673 let remain_len = String.length s - parsed_text_length in
674 let next = String.sub s parsed_text_length remain_len in
675 is_there_only_comments lexicon_status next
676 | GrafiteAst.Executable _ -> false
678 try is_there_only_comments self#grafite_status self#getFuture
680 | NCicLibrary.IncludedFileNotCompiled _
681 | HExtlib.Localized _
682 | CicNotationParser.Parse_error _ -> false
683 | Margin | End_of_file -> true
684 | Invalid_argument "Array.make" -> false
688 HLog.debug "script status:";
689 HLog.debug ("history size: " ^ string_of_int (List.length history));
690 HLog.debug (sprintf "%d statements:" (List.length statements));
691 List.iter HLog.debug statements;
692 HLog.debug ("Current file name: " ^ self#filename);
695 let _script = ref None
697 let script ~source_view ~urichooser ~ask_confirmation ~set_star ()
699 let s = new script ~source_view ~ask_confirmation ~urichooser ~set_star () in
703 let current () = match !_script with None -> assert false | Some s -> s
706 CicMathView.register_matita_script_current (current :> unit -> < advance: ?statement:string -> unit -> unit; grafite_status: GrafiteTypes.status; setGoal: int option -> unit >)