helm/ocaml/tactics/tacticChaser.ml

   1 (* Copyright (C) 2000-2002, HELM Team.
   2  *
   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.
   6  *
   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.
  11  *
  12  * HELM is distributed in the hope that it will be useful,
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  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  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,
  20  * MA  02111-1307, USA.
  21  *
  22  * For details, see the HELM World-Wide-Web page,
  23  * http://cs.unibo.it/helm/.
  24  *)
  25
  26 (******************************************************************************)
  27 (*                                                                            *)
  28 (*                               PROJECT HELM                                 *)
  29 (*                                                                            *)
  30 (*                Claudio Sacerdoti Coen <sacerdot@cs.unibo.it>               *)
  31 (*                                 18/02/2003                                 *)
  32 (*                                                                            *)
  33 (*                                                                            *)
  34 (******************************************************************************)
  35
  36   (* search arguments on which Apply tactic doesn't fail *)
  37 let searchPattern mqi_handle ?(output_html = (fun _ -> ())) ~choose_must () ~status =
  38  let ((_, metasenv, _, _), metano) = status in
  39  let (_, ey ,ty) = List.find (function (m,_,_) -> m=metano) metasenv in
  40   let list_of_must,only = MQueryLevels.out_restr metasenv ey ty in
  41   let must = choose_must list_of_must only in
  42   let torigth_restriction (u,b) =
  43    let p =
  44     if b then
  45      "http://www.cs.unibo.it/helm/schemas/schema-helm#MainConclusion"
  46     else
  47      "http://www.cs.unibo.it/helm/schemas/schema-helm#InConclusion"
  48     in
  49     (u,p,None)
  50   in
  51   let rigth_must = List.map torigth_restriction must in
  52   let rigth_only = Some (List.map torigth_restriction only) in
  53   let result =
  54          MQueryInterpreter.execute mqi_handle
  55             (MQueryGenerator.query_of_constraints
  56         (Some
  57           ["http://www.cs.unibo.it/helm/schemas/schema-helm#MainConclusion" ;
  58            "http://www.cs.unibo.it/helm/schemas/schema-helm#InConclusion"])
  59         (rigth_must,[],[]) (rigth_only,None,None)) in
  60         let uris =
  61          List.map
  62                 (function uri,_ ->
  63                         MQueryMisc.wrong_xpointer_format_from_wrong_xpointer_format' uri
  64                 ) result in
  65          let uris',exc =
  66                 let rec filter_out =
  67                  function
  68                                 [] -> [],""
  69                         | uri::tl ->
  70                                  let tl',exc = filter_out tl in
  71                                         try
  72                                          if
  73                                                 (try
  74                                                  ignore
  75                                                         (PrimitiveTactics.apply_tac
  76                                                          ~term:(MQueryMisc.term_of_cic_textual_parser_uri
  77                                                                 (MQueryMisc.cic_textual_parser_uri_of_string uri))
  78                                                          ~status);
  79                                                  true
  80                                                 with ProofEngineTypes.Fail _ -> false)
  81                                          then
  82                                                 uri::tl',exc
  83                                          else
  84                                                 tl',exc
  85                                         with
  86            (ProofEngineTypes.Fail _) as e ->
  87                                                  let exc' =
  88                                                   "<h1 color=\"red\"> ^ Exception raised trying to apply " ^
  89                                                          uri ^ ": " ^ Printexc.to_string e ^ " </h1>" ^ exc
  90                                                  in
  91                                                   tl',exc'
  92                 in
  93                  filter_out uris
  94          in
  95                 let html' =
  96                  " <h1>Objects that can actually be applied: </h1> " ^
  97                  String.concat "<br>" uris' ^ exc ^
  98                  " <h1>Number of false matches: " ^
  99                         string_of_int (List.length uris - List.length uris') ^ "</h1>" ^
 100                  " <h1>Number of good matches: " ^
 101                         string_of_int (List.length uris') ^ "</h1>"
 102                 in
 103                  output_html html' ;
 104                  uris'
 105 ;;
 106