X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2FsearchEngine%2FsearchEngine.ml;fp=helm%2FsearchEngine%2FsearchEngine.ml;h=0000000000000000000000000000000000000000;hb=c7514aaa249a96c5fdd39b1123fbdb38d92f20b6;hp=e4e33c629c4f808204dd2b48dcb03057fc6b8240;hpb=1c7fb836e2af4f2f3d18afd0396701f2094265ff;p=helm.git

diff --git a/helm/searchEngine/searchEngine.ml b/helm/searchEngine/searchEngine.ml
deleted file mode 100644
index e4e33c629..000000000
--- a/helm/searchEngine/searchEngine.ml
+++ /dev/null
@@ -1,651 +0,0 @@
-(* Copyright (C) 2002, 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://cs.unibo.it/helm/.
- *)
-
-module T = MQGTypes
-module U = MQGUtil
-module G = MQueryGenerator
-module C = MQIConn
-
-open Http_types ;;
-
-let debug = true;;
-let debug_print s = if debug then prerr_endline s;;
-Http_common.debug := true;;
-(* Http_common.debug := true;; *)
-
-  (** accepted HTTP servers for ask_uwobo method forwarding *)
-let valid_servers =
- [ "mowgli.cs.unibo.it:58080" ; "mowgli.cs.unibo.it" ; "localhost:58080" ];;
-
-let mqi_flags = [] (* default MathQL interpreter options *)
-
-open Printf;;
-
-let daemon_name = "Search Engine";;
-let default_port = 58085;;
-let port_env_var = "SEARCH_ENGINE_PORT";;
-
-let pages_dir =
-  try
-    Sys.getenv "SEARCH_ENGINE_HTML_DIR"
-  with Not_found -> "html"  (* relative to searchEngine's document root *)
-;;
-let interactive_user_uri_choice_TPL = pages_dir ^ "/templateambigpdq1.html";;
-let interactive_interpretation_choice_TPL =
-  pages_dir ^ "/templateambigpdq2.html";;
-let constraints_choice_TPL = pages_dir ^ "/constraints_choice_template.html";;
-let final_results_TPL = pages_dir ^ "/templateambigpdq3.html";;
-
-exception Chat_unfinished
-
-  (* build a bool from a 1-character-string *)
-let bool_of_string' = function
-  | "0" -> false
-  | "1" -> true
-  | s -> failwith ("Can't parse a boolean from string: " ^ s)
-;;
-
-  (* build an int option from a string *)
-let int_of_string' = function
-  | "_" -> None
-  | s ->
-      try
-        Some (int_of_string s)
-      with Failure "int_of_string" ->
-        failwith ("Can't parse an int option from string: " ^ s)
-;;
-
-  (* HTML pretty printers for mquery_generator types *)
-
-let html_of_r_obj (pos, uri) =
-  sprintf
-    "<tr><td><input type='checkbox' name='constr_obj' checked='on'/></td><td>%s</td><td>%s</td><td>%s</td></tr>"
-    uri (U.text_of_position pos)
-    (if U.is_main_position pos then
-      sprintf "<input name='obj_depth' size='2' type='text' value='%s' />"
-        (U.text_of_depth pos "")
-    else
-      "<input type=\"hidden\" name=\"obj_depth\" />")
-;;
-
-let html_of_r_rel pos =
-  sprintf
-    "<tr><td><input type='checkbox' name='constr_rel' checked='on'/></td><td>%s</td><td><input name='rel_depth' size='2' type='text' value='%s' /></td></tr>"
-    (U.text_of_position (pos:>T.full_position)) (U.text_of_depth (pos:>T.full_position) "")
-;;
-
-let html_of_r_sort (pos, sort) =
-  sprintf
-    "<tr><td><input type='checkbox' name='constr_sort' checked='on'/></td><td>%s</td><td>%s</td><td><input name='sort_depth' size='2' type='text' value='%s'/></td></tr>"
-    (U.text_of_sort sort) (U.text_of_position (pos:>T.full_position)) (U.text_of_depth (pos:>T.full_position) "")
-;;
-
-  (** pretty print a MathQL query result to an HELM theory file *)
-let theory_of_result result =
- let results_no = List.length result in
-  if results_no > 0 then
-   let mode = if results_no > 10 then "linkonly" else "typeonly" in
-   let results =
-    let idx = ref (results_no + 1) in
-     List.fold_right
-      (fun (uri,attrs) i ->
-        decr idx ;
-        "<tr><td valign=\"top\">" ^ string_of_int !idx ^ ".</td><td><ht:OBJECT uri=\"" ^ uri ^ "\" mode=\"" ^ mode ^ "\"/></td></tr>" ^  i
-      ) result ""
-   in
-    "<h1>Query Results:</h1><table xmlns:ht=\"http://www.cs.unibo.it/helm/namespaces/helm-theory\">" ^ results ^ "</table>"
-  else
-    "<h1>Query Results:</h1><p>No results found!</p>"
-;;
-
-let pp_result result =
- "<html xmlns:ht=\"http://www.cs.unibo.it/helm/namespaces/helm-theory\">\n<head><title>Query Results</title><style> A { text-decoration: none } </style></head>\n<body>" ^ theory_of_result result ^ "</body></html>"
-;;
-
-  (** chain application of Pcre substitutions *)
-let rec apply_substs substs line =
-  match substs with
-  | [] -> line
-  | (rex, templ) :: rest -> apply_substs rest (Pcre.replace ~rex ~templ line)
-  (** fold like function on files *)
-let fold_file f init fname =
-  let inchan = open_in fname in
-  let rec fold_lines' value =
-    try 
-      let line = input_line inchan in 
-      fold_lines' (f value line)
-    with End_of_file -> value
-  in
-  let res = (try fold_lines' init with e -> (close_in inchan; raise e)) in
-  close_in inchan;
-  res
-  (** iter like function on files *)
-let iter_file f = fold_file (fun _ line -> f line) ()
-
-let (title_tag_RE, choices_tag_RE, msg_tag_RE, id_to_uris_RE, id_RE,
-    interpretations_RE, interpretations_labels_RE, results_RE, new_aliases_RE,
-    form_RE, variables_initialization_RE)
-  =
-  (Pcre.regexp "@TITLE@", Pcre.regexp "@CHOICES@", Pcre.regexp "@MSG@",
-  Pcre.regexp "@ID_TO_URIS@", Pcre.regexp "@ID@",
-  Pcre.regexp "@INTERPRETATIONS@", Pcre.regexp "@INTERPRETATIONS_LABELS@",
-  Pcre.regexp "@RESULTS@", Pcre.regexp "@NEW_ALIASES@", Pcre.regexp "@FORM@",
-  Pcre.regexp "@VARIABLES_INITIALIZATION@")
-let server_and_port_url_RE = Pcre.regexp "^http://([^/]+)/.*$"
-
-exception NotAnInductiveDefinition
-
-let port =
-  try
-    int_of_string (Sys.getenv port_env_var)
-  with
-  | Not_found -> default_port
-  | Failure "int_of_string" ->
-      prerr_endline "Warning: invalid port, reverting to default";
-      default_port
-;;
-
-let pp_error = sprintf "<html><body><h1>Error: %s</h1></body></html>";;
-
-let bad_request body outchan =
-  Http_daemon.respond_error ~status:(`Client_error `Bad_request) ~body outchan
-;;
-
-let contype = "Content-Type", "text/html";;
-
-(* SEARCH ENGINE functions *)
-
-let get_constraints term =
- function
-    | "/locateInductivePrinciple" ->
-      let uri = 
-       match term with
-          Cic.MutInd (uri,t,_) -> MQueryUtil.string_of_uriref (uri,[t])
-        | _ -> raise NotAnInductiveDefinition
-      in
-      let constr_obj =
-       [(`InHypothesis, uri); (`MainHypothesis (Some 0), uri)]
-      in
-      let constr_rel = [`MainConclusion None] in
-      let constr_sort = [(`MainHypothesis (Some 1), T.Prop)] in
-       U.universe_for_search_pattern,
-        (constr_obj, constr_rel, constr_sort), (None,None,None)
-    | "/searchPattern" ->
-     let constr_obj, constr_rel, constr_sort =
-       CGSearchPattern.get_constraints term in
-      U.universe_for_search_pattern,
-       (constr_obj, constr_rel, constr_sort),
-       (Some constr_obj, Some constr_rel, Some constr_sort)
-    | "/matchConclusion" ->
-     let list_of_must, only = CGMatchConclusion.get_constraints [] [] term in
-(* FG: there is no way to choose the block number ***************************)
-     let block = pred (List.length list_of_must) in 
-      U.universe_for_match_conclusion, 
-      (List.nth list_of_must block, [], []), (Some only, None, None)
-    | _ -> assert false
-;;
-
-(*
-  format:
-    <must_obj> ':' <must_rel> ':' <must_sort> ':' <only_obj> ':' <only_rel> ':' <only_sort>
-
-    <must_*> ::= ('0'|'1') ('_'|<int>) (',' ('0'|'1') ('_'|<int>))*
-    <only> ::= '0'|'1'
-*)
-let add_user_constraints ~constraints
- ((obj, rel, sort), (only_obj, only_rel, only_sort))
-=
-  let parse_must s =
-    let l = Pcre.split ~pat:"," s in
-    (try
-      List.map
-        (fun s ->
-          let subs = Pcre.extract ~pat:"^(.)(\\d+|_)$" s in
-          (bool_of_string' subs.(1), int_of_string' subs.(2)))
-        l
-     with
-      Not_found -> failwith ("Can't parse constraint string: " ^ constraints)
-    )
-  in
-    (* to be used on "obj" *)
-  let add_user_must33 user_must must =
-    List.map2
-     (fun (b, i) (p, u) ->
-       if b then Some (U.set_full_position p i, u) else None)
-     user_must must
-  in
-    (* to be used on "rel" *)
-  let add_user_must22 user_must must =
-    List.map2
-     (fun (b, i) p -> if b then Some (U.set_main_position p i) else None)
-     user_must must
-  in
-    (* to be used on "sort" *)
-  let add_user_must32 user_must must =
-    List.map2
-     (fun (b, i) (p, s)-> if b then Some (U.set_main_position p i, s) else None)
-     user_must must
-  in
-  match Pcre.split ~pat:":" constraints with
-  | [user_obj;user_rel;user_sort;user_only_obj;user_only_rel;user_only_sort] ->
-      let
-       (user_obj,user_rel,user_sort,user_only_obj,user_only_rel,user_only_sort)
-      =
-        (parse_must user_obj,
-        parse_must user_rel,
-        parse_must user_sort,
-        bool_of_string' user_only_obj,
-        bool_of_string' user_only_rel,
-        bool_of_string' user_only_sort)
-      in
-      let only' =
-       (if user_only_obj  then only_obj else None),
-       (if user_only_rel  then only_rel else None),
-       (if user_only_sort then only_sort else None)
-      in
-      let must' =
-       let rec filter_some =
-        function
-           [] -> []
-         | None::tl -> filter_some tl
-         | (Some x)::tl -> x::(filter_some tl) 
-       in
-        filter_some (add_user_must33 user_obj obj),
-        filter_some (add_user_must22 user_rel rel),
-        filter_some (add_user_must32 user_sort sort)
-      in
-      (must', only')
-  | _ -> failwith ("Can't parse constraint string: " ^ constraints)
-in
-
-(* HTTP DAEMON CALLBACK *)
-
-let callback (req: Http_types.request) outchan =
-  try
-    debug_print (sprintf "Received request: %s" req#path);
-    (match req#path with
-    | "/execute" ->
-        let mqi_handle = C.init mqi_flags debug_print in 
-        let query_string = req#param "query" in
-        let lexbuf = Lexing.from_string query_string in
-        let query = MQueryUtil.query_of_text lexbuf in
-        let result = MQueryInterpreter.execute mqi_handle query in
-        let result_string = pp_result result in
-	      C.close mqi_handle;
-        Http_daemon.respond ~body:result_string ~headers:[contype] outchan
-    | "/locate" ->
-        let mqi_handle = C.init mqi_flags debug_print in
-        let id = req#param "id" in
-        let query = G.locate id in
-	let result = MQueryInterpreter.execute mqi_handle query in
-	      C.close mqi_handle;
-        Http_daemon.respond ~headers:[contype] ~body:(pp_result result) outchan
-    | "/unreferred" ->
-        let mqi_handle = C.init mqi_flags debug_print in
-        let target = req#param "target" in
-        let source = req#param "source" in
-	let query = G.unreferred target source in
-	let result = MQueryInterpreter.execute mqi_handle query in
-	      C.close mqi_handle;
-        Http_daemon.respond ~headers:[contype] ~body:(pp_result result) outchan
-    | "/getpage" ->
-        (* TODO implement "is_permitted" *)
-        (let is_permitted _ = true in
-        let remove_fragment uri = Pcre.replace ~pat:"#.*" uri in
-        let page = remove_fragment (req#param "url") in
-        let preprocess =
-          (try
-            bool_of_string (req#param "preprocess")
-          with Invalid_argument _ | Http_types.Param_not_found _ -> false)
-        in
-        (match page with
-        | page when is_permitted page ->
-            (let fname = sprintf "%s/%s" pages_dir (remove_fragment page) in
-            Http_daemon.send_basic_headers ~code:200 outchan;
-            Http_daemon.send_header "Content-Type" "text/html" outchan;
-            Http_daemon.send_CRLF outchan;
-            if preprocess then begin
-              iter_file
-                (fun line ->
-                  output_string outchan
-                    ((apply_substs
-                       (List.map
-                         (function (key,value) ->
-                           let key' =
-                            (Pcre.extract ~pat:"param\\.(.*)" key).(1)
-                           in
-                            Pcre.regexp ("@" ^ key' ^ "@"), value
-                         )
-                         (List.filter
-                           (fun (key,_) as p-> Pcre.pmatch ~pat:"^param\\." key)
-                           req#params)
-                       )
-                       line) ^
-                    "\n"))
-                fname
-            end else
-              Http_daemon.send_file ~src:(FileSrc fname) outchan)
-        | page -> Http_daemon.respond_forbidden ~url:page outchan))
-    | "/ask_uwobo" ->
-      let url = req#param "url" in
-      let server_and_port =
-        (Pcre.extract ~rex:server_and_port_url_RE url).(1)
-      in
-      if List.mem server_and_port valid_servers then
-        Http_daemon.respond
-          ~headers:["Content-Type", "text/html"]
-          ~body:(Http_client.Convenience.http_get url)
-          outchan
-      else
-        Http_daemon.respond
-          ~body:(pp_error ("Untrusted UWOBO server: " ^ server_and_port))
-          outchan
-    | "/searchPattern"
-    | "/matchConclusion"
-    | "/locateInductivePrinciple" ->
-        let mqi_handle = C.init mqi_flags debug_print in
-        let term_string = req#param "term" in
-        let lexbuf = Lexing.from_string term_string in
-        let (context, metasenv) = ([], []) in
-        let (dom, mk_metasenv_and_expr) =
-          CicTextualParserContext.main
-            ~context ~metasenv CicTextualLexer.token lexbuf
-        in
-        let id_to_uris_raw = req#param "aliases" in
-        let tokens = Pcre.split ~pat:"\\s" id_to_uris_raw in
-        let rec parse_tokens keys lookup = function (* TODO spostarla fuori *)
-          | [] -> keys, lookup
-          | "alias" :: key :: value :: rest ->
-              let key' = CicTextualParser0.Id key in
-               parse_tokens
-                 (key'::keys)
-                 (fun id ->
-                   if id = key' then
-                     Some
-                      (CicTextualParser0.Uri (MQueryMisc.cic_textual_parser_uri_of_string value))
-                   else lookup id)
-                 rest
-          | _ -> failwith "Can't parse aliases"
-        in
-        let parse_choices choices_raw =
-          let choices = Pcre.split ~pat:";" choices_raw in
-          List.fold_left
-            (fun f x ->
-              match Pcre.split ~pat:"\\s" x with
-              | ""::id::tail
-              | id::tail when id<>"" ->
-                  (fun id' ->
-prerr_endline ("#### " ^ id ^ " :=");
-List.iter (fun u -> prerr_endline ("<" ^ Netencoding.Url.decode u ^ ">")) tail;
-                    if id = id' then
-                      Some (List.map (fun u -> Netencoding.Url.decode u) tail)
-                    else
-                      f id')
-              | _ -> failwith "Can't parse choices")
-            (fun _ -> None)
-            choices
-        in
-        let (id_to_uris : Disambiguate.domain_and_interpretation) =
-         parse_tokens [] (fun _ -> None) tokens in
-        let id_to_choices =
-          try
-            let choices_raw = req#param "choices" in
-            parse_choices choices_raw
-          with Http_types.Param_not_found _ -> (fun _ -> None)
-        in
-        let module Chat: Disambiguate.Callbacks =
-          struct
-
-            let get_metasenv () =
-             !CicTextualParser0.metasenv
-
-            let set_metasenv metasenv =
-              CicTextualParser0.metasenv := metasenv
-
-            let output_html = prerr_endline
-
-            let interactive_user_uri_choice
-              ~selection_mode ?ok
-              ?enable_button_for_non_vars ~(title: string) ~(msg: string)
-              ~(id: string) (choices: string list)
-              =
-                (match id_to_choices id with
-                | Some choices -> choices
-                | None ->
-                  let msg = Pcre.replace ~pat:"\'" ~templ:"\\\'" msg in
-                  (match selection_mode with
-                  | `SINGLE -> assert false
-                  | `EXTENDED ->
-                      Http_daemon.send_basic_headers ~code:200 outchan ;
-                      Http_daemon.send_CRLF outchan ;
-                      iter_file
-                        (fun line ->
-                          let formatted_choices =
-                            String.concat ","
-                              (List.map (fun uri -> sprintf "\'%s\'" uri) choices)
-                          in
-                          let processed_line =
-                            apply_substs
-                              [title_tag_RE, title;
-                               choices_tag_RE, formatted_choices;
-                               msg_tag_RE, msg;
-                               id_to_uris_RE, id_to_uris_raw;
-                               id_RE, id]
-                              line
-                          in
-                          output_string outchan (processed_line ^ "\n"))
-                        interactive_user_uri_choice_TPL;
-                      raise Chat_unfinished))
-
-            let interactive_interpretation_choice interpretations =
-              let html_interpretations_labels =
-                String.concat ", "
-                  (List.map
-                    (fun l ->
-                      "\'" ^
-                      (String.concat "<br />"
-                        (List.map
-                          (fun (id, value) ->
-                            (sprintf "alias %s %s" id value))
-                          l)) ^
-                      "\'")
-                  interpretations)
-              in
-              let html_interpretations =
-                String.concat ", "
-                  (List.map
-                    (fun l ->
-                      "\'" ^
-                      (String.concat " "
-                        (List.map
-                          (fun (id, value) ->
-                            (sprintf "alias %s %s"
-                              id
-                              (MQueryMisc.wrong_xpointer_format_from_wrong_xpointer_format'
-                                value)))
-                          l)) ^
-                      "\'")
-                    interpretations)
-              in
-              Http_daemon.send_basic_headers ~code:200 outchan ;
-              Http_daemon.send_CRLF outchan ;
-              iter_file
-                (fun line ->
-                  let processed_line =
-                    apply_substs
-                      [interpretations_RE, html_interpretations;
-                       interpretations_labels_RE, html_interpretations_labels]
-                      line
-                  in
-                  output_string outchan (processed_line ^ "\n"))
-                interactive_interpretation_choice_TPL;
-              raise Chat_unfinished
-
-            let input_or_locate_uri ~title =
-              UriManager.uri_of_string "cic:/Coq/Init/DataTypes/nat_ind.con"
-
-          end
-        in
-        let module Disambiguate' = Disambiguate.Make (Chat) in
-        let (id_to_uris', metasenv', term') =
-          Disambiguate'.disambiguate_input mqi_handle
-            context metasenv dom mk_metasenv_and_expr id_to_uris
-        in
-        (match metasenv' with
-        | [] ->
-            let universe,
-                ((must_obj, must_rel, must_sort) as must'),
-                ((only_obj, only_rel, only_sort) as only) =
-              get_constraints term' req#path
-            in
-            let must'', only' =
-              (try
-                add_user_constraints
-                  ~constraints:(req#param "constraints")
-                  (must', only)
-              with Http_types.Param_not_found _ ->
-                let variables =
-                 "var aliases = '" ^ id_to_uris_raw ^ "';\n" ^
-                 "var constr_obj_len = " ^
-                  string_of_int (List.length must_obj) ^ ";\n" ^
-                 "var constr_rel_len = " ^
-                  string_of_int (List.length must_rel) ^ ";\n" ^
-                 "var constr_sort_len = " ^
-                  string_of_int (List.length must_sort) ^ ";\n" in
-                let form =
-                  (if must_obj = [] then "" else
-                    "<h4>Obj constraints</h4>" ^
-                    "<table>" ^
-                    (String.concat "\n" (List.map html_of_r_obj must_obj)) ^
-                    "</table>" ^
-                    (* The following three lines to make Javascript create *)
-                    (* the constr_obj[] and obj_depth[] arrays even if we  *)
-                    (* have only one real entry.                           *)
-                    "<input type=\"hidden\" name=\"constr_obj\" />" ^
-                    "<input type=\"hidden\" name=\"obj_depth\" />") ^
-                  (if must_rel = [] then "" else
-                   "<h4>Rel constraints</h4>" ^
-                   "<table>" ^
-                   (String.concat "\n" (List.map html_of_r_rel must_rel)) ^
-                   "</table>" ^
-                    (* The following two lines to make Javascript create *)
-                    (* the constr_rel[] and rel_depth[] arrays even if   *)
-                    (* we have only one real entry.                      *)
-                    "<input type=\"hidden\" name=\"constr_rel\" />" ^
-                    "<input type=\"hidden\" name=\"rel_depth\" />") ^
-                  (if must_sort = [] then "" else
-                    "<h4>Sort constraints</h4>" ^
-                    "<table>" ^
-                    (String.concat "\n" (List.map html_of_r_sort must_sort)) ^
-                    "</table>" ^
-                    (* The following two lines to make Javascript create *)
-                    (* the constr_sort[] and sort_depth[] arrays even if *)
-                    (* we have only one real entry.                      *)
-                    "<input type=\"hidden\" name=\"constr_sort\" />" ^
-                    "<input type=\"hidden\" name=\"sort_depth\" />") ^
-                    "<h4>Only constraints</h4>" ^
-                    "Enforce Only constraints for objects: " ^
-                      "<input type='checkbox' name='only_obj'" ^
-                      (if only_obj = None then "" else " checked='yes'") ^ " /><br />" ^
-                    "Enforce Rel constraints for objects: " ^
-                      "<input type='checkbox' name='only_rel'" ^
-                      (if only_rel = None then "" else " checked='yes'") ^ " /><br />" ^
-                    "Enforce Sort constraints for objects: " ^
-                      "<input type='checkbox' name='only_sort'" ^
-                      (if only_sort = None then "" else " checked='yes'") ^ " /><br />"
-                in
-                Http_daemon.send_basic_headers ~code:200 outchan ;
-                Http_daemon.send_CRLF outchan ;
-                iter_file
-                  (fun line ->
-                    let processed_line =
-                      apply_substs
-                       [form_RE, form ;
-                        variables_initialization_RE, variables] line
-                    in
-                    output_string outchan (processed_line ^ "\n"))
-                  constraints_choice_TPL;
-                  raise Chat_unfinished)
-            in
-            let query =
-             G.query_of_constraints (Some universe) must'' only'
-            in
-	          let results = MQueryInterpreter.execute mqi_handle query in 
-             Http_daemon.send_basic_headers ~code:200 outchan ;
-             Http_daemon.send_CRLF outchan ;
-             iter_file
-               (fun line ->
-                 let new_aliases =
-                   match id_to_uris' with
-                   | (domain, f) ->
-                       String.concat ", "
-                         (List.map
-                           (fun name ->
-                             sprintf "\'alias %s cic:%s\'"
-                               (match name with
-                                   CicTextualParser0.Id name -> name
-                                 | _ -> assert false (*CSC: completare *))
-                               (match f name with
-                               | None -> assert false
-                               | Some (CicTextualParser0.Uri t) ->
-                                   MQueryMisc.string_of_cic_textual_parser_uri
-                                     t
-                               | _ -> assert false (*CSC: completare *)))
-                           domain)
-                 in
-                 let processed_line =
-                   apply_substs
-                     [results_RE, theory_of_result results ;
-                      new_aliases_RE, new_aliases]
-                     line
-                 in
-                 output_string outchan (processed_line ^ "\n"))
-               final_results_TPL
-        | _ -> (* unable to instantiate some implicit variable *)
-            Http_daemon.respond
-              ~headers:[contype]
-              ~body:"some implicit variables are still unistantiated :-("
-              outchan);
-            C.close mqi_handle
-    | invalid_request ->
-        Http_daemon.respond_error ~status:(`Client_error `Bad_request) outchan);
-    debug_print (sprintf "%s done!" req#path)
-  with
-  | Chat_unfinished -> prerr_endline "Chat unfinished, Try again!"
-  | Http_types.Param_not_found attr_name ->
-      bad_request (sprintf "Parameter '%s' is missing" attr_name) outchan
-  | exc ->
-      Http_daemon.respond
-        ~body:(pp_error ("Uncaught exception: " ^ (Printexc.to_string exc)))
-        outchan
-in
-printf "%s started and listening on port %d\n" daemon_name port;
-printf "Current directory is %s\n" (Sys.getcwd ());
-printf "HTML directory is %s\n" pages_dir;
-flush stdout;
-Unix.putenv "http_proxy" "";
-Http_daemon.start' ~port callback;
-printf "%s is terminating, bye!\n" daemon_name
-