X-Git-Url: http://matita.cs.unibo.it/gitweb/?p=helm.git;a=blobdiff_plain;f=helm%2Fmatita%2FmatitaScript.ml;fp=helm%2Fmatita%2FmatitaScript.ml;h=4c53f113bd9d0db4b7707d628a320be84f00dee8;hp=0000000000000000000000000000000000000000;hb=792b5d29ebae8f917043d9dd226692919b5d6ca1;hpb=a14a8c7637fd0b95e9d4deccb20c6abc98e8f953 diff --git a/helm/matita/matitaScript.ml b/helm/matita/matitaScript.ml new file mode 100644 index 000000000..4c53f113b --- /dev/null +++ b/helm/matita/matitaScript.ml @@ -0,0 +1,818 @@ +(* Copyright (C) 2004-2005, HELM Team. + * + * This file is part of HELM, an Hypertextual, Electronic + * Library of Mathematics, developed at the Computer Science + * Department, University of Bologna, Italy. + * + * HELM is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * HELM is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with HELM; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, + * MA 02111-1307, USA. + * + * For details, see the HELM World-Wide-Web page, + * http://helm.cs.unibo.it/ + *) + +(* $Id$ *) + +open Printf +open GrafiteTypes + +module TA = GrafiteAst + +let debug = false +let debug_print = if debug then prerr_endline else ignore + + (** raised when one of the script margins (top or bottom) is reached *) +exception Margin +exception NoUnfinishedProof + +let safe_substring s i j = + try String.sub s i j with Invalid_argument _ -> assert false + +let heading_nl_RE = Pcre.regexp "^\\s*\n\\s*" +let heading_nl_RE' = Pcre.regexp "^(\\s*\n\\s*)((.|\n)*)" +let only_dust_RE = Pcre.regexp "^(\\s|\n|%%[^\n]*\n)*$" +let multiline_RE = Pcre.regexp "^\n[^\n]+$" +let newline_RE = Pcre.regexp "\n" + +let comment str = + if Pcre.pmatch ~rex:multiline_RE str then + "\n(** " ^ (Pcre.replace ~rex:newline_RE str) ^ " *)" + else + "\n(**\n" ^ str ^ "\n*)" + +let first_line s = + let s = Pcre.replace ~rex:heading_nl_RE s in + try + let nl_pos = String.index s '\n' in + String.sub s 0 nl_pos + with Not_found -> s + + (** creates a statement AST for the Goal tactic, e.g. "goal 7" *) +let goal_ast n = + let module A = GrafiteAst in + let loc = HExtlib.dummy_floc in + A.Executable (loc, A.Tactical (loc, + A.Tactic (loc, A.Goal (loc, n)), + Some (A.Dot loc))) + +type guistuff = { + mathviewer:MatitaTypes.mathViewer; + urichooser: UriManager.uri list -> UriManager.uri list; + ask_confirmation: title:string -> message:string -> [`YES | `NO | `CANCEL]; + develcreator: containing:string option -> unit; + mutable filenamedata: string option * MatitamakeLib.development option +} + +let eval_with_engine guistuff lexicon_status grafite_status user_goal + parsed_text st += + let module TAPp = GrafiteAstPp in + let parsed_text_length = String.length parsed_text in + let initial_space,parsed_text = + try + let pieces = Pcre.extract ~rex:heading_nl_RE' parsed_text in + pieces.(1), pieces.(2) + with + Not_found -> "", parsed_text in + let inital_space,new_grafite_status,new_lexicon_status,new_status_and_text_list' = + (* the code commented out adds the "select" command if needed *) + initial_space,grafite_status,lexicon_status,[] in +(* let loc, ex = + match st with TA.Executable (loc,ex) -> loc, ex | _ -> assert false in + match grafite_status.proof_status with + | Incomplete_proof { stack = stack } + when not (List.mem user_goal (Continuationals.head_goals stack)) -> + let grafite_status = + MatitaEngine.eval_ast + ~do_heavy_checks:true grafite_status (goal_ast user_goal) + in + let initial_space = if initial_space = "" then "\n" else initial_space + in + "\n", grafite_status, + [ grafite_status, + initial_space ^ TAPp.pp_tactical (TA.Select (loc, [user_goal])) ] + | _ -> initial_space,grafite_status,[] in *) + let enriched_history_fragment = + MatitaEngine.eval_ast ~do_heavy_checks:true + new_lexicon_status new_grafite_status st + in + let _,new_text_list_rev = + let module DTE = DisambiguateTypes.Environment in + let module UM = UriManager in + List.fold_right ( + fun (_,alias) (initial_space,acc) -> + match alias with + None -> initial_space,initial_space::acc + | Some (k,((v,_) as value)) -> + let new_text = + let initial_space = + if initial_space = "" then "\n" else initial_space + in + initial_space ^ + DisambiguatePp.pp_environment + (DisambiguateTypes.Environment.add k value + DisambiguateTypes.Environment.empty) + in + "\n",new_text::acc + ) enriched_history_fragment (initial_space,[]) in + let new_text_list_rev = + match enriched_history_fragment,new_text_list_rev with + (_,None)::_, initial_space::tl -> (initial_space ^ parsed_text)::tl + | _,_ -> assert false + in + let res = + try + List.combine (fst (List.split enriched_history_fragment)) new_text_list_rev + with + Invalid_argument _ -> assert false + in + res,parsed_text_length + +let eval_with_engine + guistuff lexicon_status grafite_status user_goal parsed_text st += + try + eval_with_engine guistuff lexicon_status grafite_status user_goal parsed_text + st + with + | DependenciesParser.UnableToInclude what + | GrafiteEngine.IncludedFileNotCompiled what as exc -> + let compile_needed_and_go_on d = + let target = what in + let refresh_cb () = + while Glib.Main.pending () do ignore(Glib.Main.iteration false); done + in + if not(MatitamakeLib.build_development_in_bg ~target refresh_cb d) then + raise exc + else + eval_with_engine guistuff lexicon_status grafite_status user_goal + parsed_text st + in + let do_nothing () = [], 0 in + let handle_with_devel d = + let name = MatitamakeLib.name_for_development d in + let title = "Unable to include " ^ what in + let message = + what ^ " is handled by development " ^ name ^ ".\n\n" ^ + "Should I compile it and Its dependencies?" + in + (match guistuff.ask_confirmation ~title ~message with + | `YES -> compile_needed_and_go_on d + | `NO -> raise exc + | `CANCEL -> do_nothing ()) + in + let handle_without_devel filename = + let title = "Unable to include " ^ what in + let message = + what ^ " is not handled by a development.\n" ^ + "All dependencies are automatically solved for a development.\n\n" ^ + "Do you want to set up a development?" + in + (match guistuff.ask_confirmation ~title ~message with + | `YES -> + (match filename with + | Some f -> + guistuff.develcreator ~containing:(Some (Filename.dirname f)) + | None -> guistuff.develcreator ~containing:None); + do_nothing () + | `NO -> raise exc + | `CANCEL -> do_nothing()) + in + match guistuff.filenamedata with + | None,None -> handle_without_devel None + | None,Some d -> handle_with_devel d + | Some f,_ -> + match MatitamakeLib.development_for_dir (Filename.dirname f) with + | None -> handle_without_devel (Some f) + | Some d -> handle_with_devel d +;; + +let pp_eager_statement_ast = + GrafiteAstPp.pp_statement ~term_pp:CicNotationPp.pp_term + ~lazy_term_pp:(fun _ -> assert false) ~obj_pp:(fun _ -> assert false) + +let rec eval_macro include_paths (buffer : GText.buffer) guistuff lexicon_status grafite_status user_goal unparsed_text parsed_text script mac = + let module TAPp = GrafiteAstPp in + let module MQ = MetadataQuery in + let module MDB = LibraryDb in + let module CTC = CicTypeChecker in + let module CU = CicUniv in + (* no idea why ocaml wants this *) + let parsed_text_length = String.length parsed_text in + let dbd = LibraryDb.instance () in + (* XXX use a real CIC -> string pretty printer *) + let pp_macro = TAPp.pp_macro ~term_pp:CicPp.ppterm in + match mac with + (* WHELP's stuff *) + | TA.WMatch (loc, term) -> + let l = Whelp.match_term ~dbd term in + let query_url = + MatitaMisc.strip_suffix ~suffix:"." + (HExtlib.trim_blanks unparsed_text) + in + let entry = `Whelp (query_url, l) in + guistuff.mathviewer#show_uri_list ~reuse:true ~entry l; + [], parsed_text_length + | TA.WInstance (loc, term) -> + let l = Whelp.instance ~dbd term in + let entry = `Whelp (pp_macro (TA.WInstance (loc, term)), l) in + guistuff.mathviewer#show_uri_list ~reuse:true ~entry l; + [], parsed_text_length + | TA.WLocate (loc, s) -> + let l = Whelp.locate ~dbd s in + let entry = `Whelp (pp_macro (TA.WLocate (loc, s)), l) in + guistuff.mathviewer#show_uri_list ~reuse:true ~entry l; + [], parsed_text_length + | TA.WElim (loc, term) -> + let uri = + match term with + | Cic.MutInd (uri,n,_) -> UriManager.uri_of_uriref uri n None + | _ -> failwith "Not a MutInd" + in + let l = Whelp.elim ~dbd uri in + let entry = `Whelp (pp_macro (TA.WElim (loc, term)), l) in + guistuff.mathviewer#show_uri_list ~reuse:true ~entry l; + [], parsed_text_length + | TA.WHint (loc, term) -> + let s = ((None,[0,[],term], Cic.Meta (0,[]) ,term),0) in + let l = List.map fst (MQ.experimental_hint ~dbd s) in + let entry = `Whelp (pp_macro (TA.WHint (loc, term)), l) in + guistuff.mathviewer#show_uri_list ~reuse:true ~entry l; + [], parsed_text_length + (* REAL macro *) + | TA.Hint loc -> + let user_goal' = + match user_goal with + Some n -> n + | None -> raise NoUnfinishedProof + in + let proof = GrafiteTypes.get_current_proof grafite_status in + let proof_status = proof,user_goal' in + let l = List.map fst (MQ.experimental_hint ~dbd proof_status) in + let selected = guistuff.urichooser l in + (match selected with + | [] -> [], parsed_text_length + | [uri] -> + let suri = UriManager.string_of_uri uri in + let ast loc = + TA.Executable (loc, (TA.Tactical (loc, + TA.Tactic (loc, + TA.Apply (loc, CicNotationPt.Uri (suri, None))), + Some (TA.Dot loc)))) in + let text = + comment parsed_text ^ "\n" ^ + pp_eager_statement_ast (ast HExtlib.dummy_floc) in + let text_len = String.length text in + let loc = HExtlib.floc_of_loc (0,text_len) in + let statement = `Ast (GrafiteParser.LSome (ast loc),text) in + let res,_parsed_text_len = + eval_statement include_paths buffer guistuff lexicon_status + grafite_status user_goal script statement + in + (* we need to replace all the parsed_text *) + res,String.length parsed_text + | _ -> + HLog.error + "The result of the urichooser should be only 1 uri, not:\n"; + List.iter ( + fun u -> HLog.error (UriManager.string_of_uri u ^ "\n") + ) selected; + assert false) + | TA.Check (_,term) -> + let metasenv = GrafiteTypes.get_proof_metasenv grafite_status in + let context = + match user_goal with + None -> [] + | Some n -> GrafiteTypes.get_proof_context grafite_status n in + let ty,_ = CTC.type_of_aux' metasenv context term CicUniv.empty_ugraph in + let t_and_ty = Cic.Cast (term,ty) in + guistuff.mathviewer#show_entry (`Cic (t_and_ty,metasenv)); + [], parsed_text_length + (* TODO *) + | TA.Quit _ -> failwith "not implemented" + | TA.Print (_,kind) -> failwith "not implemented" + | TA.Search_pat (_, search_kind, str) -> failwith "not implemented" + | TA.Search_term (_, search_kind, term) -> failwith "not implemented" + +and eval_executable include_paths (buffer : GText.buffer) guistuff lexicon_status grafite_status user_goal unparsed_text parsed_text script loc ex += + let module TAPp = GrafiteAstPp in + let module MD = GrafiteDisambiguator in + let module ML = MatitaMisc in + try + begin + match ex with + | TA.Command (_,TA.Set (_,"baseuri",u)) -> + if not (GrafiteMisc.is_empty u) then + (match + guistuff.ask_confirmation + ~title:"Baseuri redefinition" + ~message:( + "Baseuri " ^ u ^ " already exists.\n" ^ + "Do you want to redefine the corresponding "^ + "part of the library?") + with + | `YES -> + let basedir = Helm_registry.get "matita.basedir" in + LibraryClean.clean_baseuris ~basedir [u] + | `NO -> () + | `CANCEL -> raise MatitaTypes.Cancel) + | _ -> () + end; + eval_with_engine + guistuff lexicon_status grafite_status user_goal parsed_text + (TA.Executable (loc, ex)) + with + MatitaTypes.Cancel -> [], 0 + | GrafiteEngine.Macro (_loc,lazy_macro) -> + let context = + match user_goal with + None -> [] + | Some n -> GrafiteTypes.get_proof_context grafite_status n in + let grafite_status,macro = lazy_macro context in + eval_macro include_paths buffer guistuff lexicon_status grafite_status + user_goal unparsed_text parsed_text script macro + +and eval_statement include_paths (buffer : GText.buffer) guistuff lexicon_status + grafite_status user_goal script statement += + let (lexicon_status,st), unparsed_text = + match statement with + | `Raw text -> + if Pcre.pmatch ~rex:only_dust_RE text then raise Margin; + GrafiteParser.parse_statement (Ulexing.from_utf8_string text) + ~include_paths lexicon_status, text + | `Ast (st, text) -> (lexicon_status, st), text + in + let text_of_loc loc = + let parsed_text_length = snd (HExtlib.loc_of_floc loc) in + let parsed_text = safe_substring unparsed_text 0 parsed_text_length in + parsed_text, parsed_text_length + in + match st with + | GrafiteParser.LNone loc -> + let parsed_text, parsed_text_length = text_of_loc loc in + [(grafite_status,lexicon_status),parsed_text], + parsed_text_length + | GrafiteParser.LSome (GrafiteAst.Comment (loc, _)) -> + let parsed_text, parsed_text_length = text_of_loc loc in + let remain_len = String.length unparsed_text - parsed_text_length in + let s = String.sub unparsed_text parsed_text_length remain_len in + let s,len = + try + eval_statement include_paths buffer guistuff lexicon_status + grafite_status user_goal script (`Raw s) + with + HExtlib.Localized (floc, exn) -> + HExtlib.raise_localized_exception ~offset:parsed_text_length floc exn + | GrafiteDisambiguator.DisambiguationError (offset,errorll) -> + raise + (GrafiteDisambiguator.DisambiguationError + (offset+parsed_text_length, errorll)) + in + (match s with + | (statuses,text)::tl -> + (statuses,parsed_text ^ text)::tl,parsed_text_length + len + | [] -> [], 0) + | GrafiteParser.LSome (GrafiteAst.Executable (loc, ex)) -> + let parsed_text, parsed_text_length = text_of_loc loc in + eval_executable include_paths buffer guistuff lexicon_status + grafite_status user_goal unparsed_text parsed_text script loc ex + +let fresh_script_id = + let i = ref 0 in + fun () -> incr i; !i + +class script ~(source_view: GSourceView.source_view) + ~(mathviewer: MatitaTypes.mathViewer) + ~set_star + ~ask_confirmation + ~urichooser + ~develcreator + () = +let buffer = source_view#buffer in +let source_buffer = source_view#source_buffer in +let initial_statuses = + (* these include_paths are used only to load the initial notation *) + let include_paths = + Helm_registry.get_list Helm_registry.string "matita.includes" in + let lexicon_status = + CicNotation2.load_notation ~include_paths + BuildTimeConf.core_notation_script in + let grafite_status = GrafiteSync.init () in + grafite_status,lexicon_status +in +object (self) + val mutable include_paths = + Helm_registry.get_list Helm_registry.string "matita.includes" + + val scriptId = fresh_script_id () + + val guistuff = { + mathviewer = mathviewer; + urichooser = urichooser; + ask_confirmation = ask_confirmation; + develcreator = develcreator; + filenamedata = (None, None)} + + method private getFilename = + match guistuff.filenamedata with Some f,_ -> f | _ -> assert false + + method filename = self#getFilename + + method private ppFilename = + match guistuff.filenamedata with + | Some f,_ -> f + | None,_ -> sprintf ".unnamed%d.ma" scriptId + + initializer + ignore (GMain.Timeout.add ~ms:300000 + ~callback:(fun _ -> self#_saveToBackupFile ();true)); + ignore (buffer#connect#modified_changed + (fun _ -> set_star (Filename.basename self#ppFilename) buffer#modified)) + + val mutable statements = [] (** executed statements *) + + val mutable history = [ initial_statuses ] + (** list of states before having executed statements. Head element of this + * list is the current state, last element is the state at the beginning of + * the script. + * Invariant: this list length is 1 + length of statements *) + + (** goal as seen by the user (i.e. metano corresponding to current tab) *) + val mutable userGoal = None + + (** text mark and tag representing locked part of a script *) + val locked_mark = + buffer#create_mark ~name:"locked" ~left_gravity:true buffer#start_iter + val locked_tag = buffer#create_tag [`BACKGROUND "lightblue"; `EDITABLE false] + val error_tag = buffer#create_tag [`UNDERLINE `SINGLE; `FOREGROUND "red"] + + method locked_mark = locked_mark + method locked_tag = locked_tag + method error_tag = error_tag + + (* history can't be empty, the invariant above grant that it contains at + * least the init grafite_status *) + method grafite_status = match history with (s,_)::_ -> s | _ -> assert false + method lexicon_status = match history with (_,ss)::_ -> ss | _ -> assert false + + method private _advance ?statement () = + let s = match statement with Some s -> s | None -> self#getFuture in + HLog.debug ("evaluating: " ^ first_line s ^ " ..."); + let (entries, parsed_len) = + try + eval_statement include_paths buffer guistuff self#lexicon_status + self#grafite_status userGoal self (`Raw s) + with End_of_file -> raise Margin + in + let new_statuses, new_statements = + let statuses, texts = List.split entries in + statuses, texts + in + history <- new_statuses @ history; + statements <- new_statements @ statements; + let start = buffer#get_iter_at_mark (`MARK locked_mark) in + let new_text = String.concat "" (List.rev new_statements) in + if statement <> None then + buffer#insert ~iter:start new_text + else begin + if new_text <> String.sub s 0 parsed_len then begin + buffer#delete ~start ~stop:(start#copy#forward_chars parsed_len); + buffer#insert ~iter:start new_text; + end; + end; + self#moveMark (String.length new_text); + (* here we need to set the Goal in case we are going to cursor (or to + bottom) and we will face a macro *) + match self#grafite_status.proof_status with + Incomplete_proof p -> + userGoal <- Some (Continuationals.Stack.find_goal p.stack) + | _ -> userGoal <- None + + method private _retract offset lexicon_status grafite_status new_statements + new_history + = + let cur_grafite_status,cur_lexicon_status = + match history with s::_ -> s | [] -> assert false + in + LexiconSync.time_travel ~present:cur_lexicon_status ~past:lexicon_status; + GrafiteSync.time_travel ~present:cur_grafite_status ~past:grafite_status; + statements <- new_statements; + history <- new_history; + self#moveMark (- offset) + + method advance ?statement () = + try + self#_advance ?statement (); + self#notify + with + | Margin -> self#notify + | exc -> self#notify; raise exc + + method retract () = + try + let cmp,new_statements,new_history,(grafite_status,lexicon_status) = + match statements,history with + stat::statements, _::(status::_ as history) -> + String.length stat, statements, history, status + | [],[_] -> raise Margin + | _,_ -> assert false + in + self#_retract cmp lexicon_status grafite_status new_statements + new_history; + self#notify + with + | Margin -> self#notify + | exc -> self#notify; raise exc + + method private getFuture = + buffer#get_text ~start:(buffer#get_iter_at_mark (`MARK locked_mark)) + ~stop:buffer#end_iter () + + + (** @param rel_offset relative offset from current position of locked_mark *) + method private moveMark rel_offset = + let mark = `MARK locked_mark in + let old_insert = buffer#get_iter_at_mark `INSERT in + buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter; + let current_mark_pos = buffer#get_iter_at_mark mark in + let new_mark_pos = + match rel_offset with + | 0 -> current_mark_pos + | n when n > 0 -> current_mark_pos#forward_chars n + | n (* when n < 0 *) -> current_mark_pos#backward_chars (abs n) + in + buffer#move_mark mark ~where:new_mark_pos; + buffer#apply_tag locked_tag ~start:buffer#start_iter ~stop:new_mark_pos; + buffer#move_mark `INSERT old_insert; + let mark_position = buffer#get_iter_at_mark mark in + if source_view#move_mark_onscreen mark then + begin + buffer#move_mark mark mark_position; + source_view#scroll_to_mark ~use_align:true ~xalign:1.0 ~yalign:0.1 mark; + end; + while Glib.Main.pending () do ignore(Glib.Main.iteration false); done + + method clean_dirty_lock = + let lock_mark_iter = buffer#get_iter_at_mark (`MARK locked_mark) in + buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter; + buffer#apply_tag locked_tag ~start:buffer#start_iter ~stop:lock_mark_iter + + val mutable observers = [] + + method addObserver (o: LexiconEngine.status -> GrafiteTypes.status -> unit) = + observers <- o :: observers + + method private notify = + let lexicon_status = self#lexicon_status in + let grafite_status = self#grafite_status in + List.iter (fun o -> o lexicon_status grafite_status) observers + + method loadFromFile f = + buffer#set_text (HExtlib.input_file f); + self#reset_buffer; + buffer#set_modified false + + method assignFileName file = + let abspath = MatitaMisc.absolute_path file in + let dirname = Filename.dirname abspath in + let devel = MatitamakeLib.development_for_dir dirname in + guistuff.filenamedata <- Some abspath, devel; + let include_ = + match MatitamakeLib.development_for_dir dirname with + None -> [] + | Some devel -> [MatitamakeLib.root_for_development devel] in + let include_ = + include_ @ (Helm_registry.get_list Helm_registry.string "matita.includes") + in + include_paths <- include_ + + method saveToFile () = + let oc = open_out self#getFilename in + output_string oc (buffer#get_text ~start:buffer#start_iter + ~stop:buffer#end_iter ()); + close_out oc; + buffer#set_modified false + + method private _saveToBackupFile () = + if buffer#modified then + begin + let f = self#ppFilename ^ "~" in + let oc = open_out f in + output_string oc (buffer#get_text ~start:buffer#start_iter + ~stop:buffer#end_iter ()); + close_out oc; + HLog.debug ("backup " ^ f ^ " saved") + end + + method private goto_top = + let grafite_status,lexicon_status = + let rec last x = function + | [] -> x + | hd::tl -> last hd tl + in + last (self#grafite_status,self#lexicon_status) history + in + (* FIXME: this is not correct since there is no undo for + * library_objects.set_default... *) + GrafiteSync.time_travel ~present:self#grafite_status ~past:grafite_status; + LexiconSync.time_travel ~present:self#lexicon_status ~past:lexicon_status + + method private reset_buffer = + statements <- []; + history <- [ initial_statuses ]; + userGoal <- None; + self#notify; + buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter; + buffer#move_mark (`MARK locked_mark) ~where:buffer#start_iter + + method reset () = + self#reset_buffer; + source_buffer#begin_not_undoable_action (); + buffer#delete ~start:buffer#start_iter ~stop:buffer#end_iter; + source_buffer#end_not_undoable_action (); + buffer#set_modified false; + + method template () = + let template = HExtlib.input_file BuildTimeConf.script_template in + buffer#insert ~iter:(buffer#get_iter `START) template; + let development = MatitamakeLib.development_for_dir (Unix.getcwd ()) in + guistuff.filenamedata <- (None,development); + let include_ = + match development with + None -> [] + | Some devel -> [MatitamakeLib.root_for_development devel ] + in + let include_ = + include_ @ (Helm_registry.get_list Helm_registry.string "matita.includes") + in + include_paths <- include_ ; + buffer#set_modified false; + set_star (Filename.basename self#ppFilename) false + + method goto (pos: [`Top | `Bottom | `Cursor]) () = + let old_locked_mark = + `MARK + (buffer#create_mark ~name:"old_locked_mark" + ~left_gravity:true (buffer#get_iter_at_mark (`MARK locked_mark))) in + let getpos _ = buffer#get_iter_at_mark (`MARK locked_mark) in + let getoldpos _ = buffer#get_iter_at_mark old_locked_mark in + let dispose_old_locked_mark () = buffer#delete_mark old_locked_mark in + match pos with + | `Top -> + dispose_old_locked_mark (); + self#goto_top; + self#reset_buffer; + self#notify + | `Bottom -> + (try + let rec dowhile () = + self#_advance (); + let newpos = getpos () in + if (getoldpos ())#compare newpos < 0 then + begin + buffer#move_mark old_locked_mark newpos; + dowhile () + end + in + dowhile (); + dispose_old_locked_mark (); + self#notify + with + | Margin -> dispose_old_locked_mark (); self#notify + | exc -> dispose_old_locked_mark (); self#notify; raise exc) + | `Cursor -> + let locked_iter () = buffer#get_iter_at_mark (`NAME "locked") in + let cursor_iter () = buffer#get_iter_at_mark `INSERT in + let remember = + `MARK + (buffer#create_mark ~name:"initial_insert" + ~left_gravity:true (cursor_iter ())) in + let dispose_remember () = buffer#delete_mark remember in + let remember_iter () = + buffer#get_iter_at_mark (`NAME "initial_insert") in + let cmp () = (locked_iter ())#offset - (remember_iter ())#offset in + let icmp = cmp () in + let forward_until_cursor () = (* go forward until locked > cursor *) + let rec aux () = + self#_advance (); + if cmp () < 0 && (getoldpos ())#compare (getpos ()) < 0 + then + begin + buffer#move_mark old_locked_mark (getpos ()); + aux () + end + in + aux () + in + let rec back_until_cursor len = (* go backward until locked < cursor *) + function + statements, ((grafite_status,lexicon_status)::_ as history) + when len <= 0 -> + self#_retract (icmp - len) lexicon_status grafite_status statements + history + | statement::tl1, _::tl2 -> + back_until_cursor (len - String.length statement) (tl1,tl2) + | _,_ -> assert false + in + (try + begin + if icmp < 0 then (* locked < cursor *) + (forward_until_cursor (); self#notify) + else if icmp > 0 then (* locked > cursor *) + (back_until_cursor icmp (statements,history); self#notify) + else (* cursor = locked *) + () + end ; + dispose_remember (); + dispose_old_locked_mark (); + with + | Margin -> dispose_remember (); dispose_old_locked_mark (); self#notify + | exc -> dispose_remember (); dispose_old_locked_mark (); + self#notify; raise exc) + + method onGoingProof () = + match self#grafite_status.proof_status with + | No_proof | Proof _ -> false + | Incomplete_proof _ -> true + | Intermediate _ -> assert false + +(* method proofStatus = MatitaTypes.get_proof_status self#status *) + method proofMetasenv = GrafiteTypes.get_proof_metasenv self#grafite_status + + method proofContext = + match userGoal with + None -> [] + | Some n -> GrafiteTypes.get_proof_context self#grafite_status n + + method proofConclusion = + match userGoal with + None -> assert false + | Some n -> + GrafiteTypes.get_proof_conclusion self#grafite_status n + + method stack = GrafiteTypes.get_stack self#grafite_status + method setGoal n = userGoal <- n + method goal = userGoal + + method eos = + let s = self#getFuture in + let rec is_there_and_executable lexicon_status s = + if Pcre.pmatch ~rex:only_dust_RE s then raise Margin; + let lexicon_status,st = + GrafiteParser.parse_statement (Ulexing.from_utf8_string s) + ~include_paths lexicon_status + in + match st with + GrafiteParser.LNone loc + | GrafiteParser.LSome (GrafiteAst.Comment (loc,_)) -> + let parsed_text_length = snd (HExtlib.loc_of_floc loc) in + let remain_len = String.length s - parsed_text_length in + let next = String.sub s parsed_text_length remain_len in + is_there_and_executable lexicon_status next + | GrafiteParser.LSome (GrafiteAst.Executable (loc, ex)) -> false + in + try + is_there_and_executable self#lexicon_status s + with + | CicNotationParser.Parse_error _ -> false + | Margin | End_of_file -> true + + (* debug *) + method dump () = + HLog.debug "script status:"; + HLog.debug ("history size: " ^ string_of_int (List.length history)); + HLog.debug (sprintf "%d statements:" (List.length statements)); + List.iter HLog.debug statements; + HLog.debug ("Current file name: " ^ + (match guistuff.filenamedata with + |None,_ -> "[ no name ]" + | Some f,_ -> f)); + +end + +let _script = ref None + +let script ~source_view ~mathviewer ~urichooser ~develcreator ~ask_confirmation ~set_star () += + let s = new script + ~source_view ~mathviewer ~ask_confirmation ~urichooser ~develcreator ~set_star () + in + _script := Some s; + s + +let current () = match !_script with None -> assert false | Some s -> s +