X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2Fmatita%2FmatitaMisc.ml;h=17473f38b3826029c62674fa7e8a6e23371ab928;hb=9e8c5d2163e701413517153f00a52dac1cd31ecd;hp=c9d8ae4a6dbc313a2ede0b2110468afaec6c044d;hpb=77784fbeb858e3cbec8a0ad7cb03f271089b09a3;p=helm.git

diff --git a/helm/matita/matitaMisc.ml b/helm/matita/matitaMisc.ml
index c9d8ae4a6..17473f38b 100644
--- a/helm/matita/matitaMisc.ml
+++ b/helm/matita/matitaMisc.ml
@@ -1,4 +1,4 @@
-(* Copyright (C) 2004, HELM Team.
+(* Copyright (C) 2004-2005, HELM Team.
  * 
  * This file is part of HELM, an Hypertextual, Electronic
  * Library of Mathematics, developed at the Computer Science
@@ -24,18 +24,88 @@
  *)
 
 open Printf
+open MatitaTypes 
 
-let is_dir fname = (Unix.stat fname).Unix.st_kind = Unix.S_DIR
-let is_regular fname = (Unix.stat fname).Unix.st_kind = Unix.S_REG
+(** Functions "imported" from Http_getter_misc *)
 
-let input_file fname =
-  let size = (Unix.stat fname).Unix.st_size in
-  let buf = Buffer.create size in
-  let ic = open_in fname in
-  Buffer.add_channel buf ic size;
-  close_in ic;
-  Buffer.contents buf
+let strip_trailing_slash = Http_getter_misc.strip_trailing_slash
+let normalize_dir = Http_getter_misc.normalize_dir
+let strip_suffix = Http_getter_misc.strip_suffix
 
+let baseuri_of_baseuri_decl st =
+  match st with
+  | GrafiteAst.Executable (_, GrafiteAst.Command (_, GrafiteAst.Set (_, "baseuri", buri))) ->
+      Some buri
+  | _ -> None
+
+let baseuri_of_file file = 
+  let uri = ref None in
+  let ic = open_in file in
+  let istream = Ulexing.from_utf8_channel ic in
+  (try
+    while true do
+      try 
+        let stm = GrafiteParser.parse_statement istream in
+        match baseuri_of_baseuri_decl stm with
+        | Some buri -> 
+            let u = strip_trailing_slash buri in
+            if String.length u < 5 || String.sub u 0 5 <> "cic:/" then
+              MatitaLog.error (file ^ " sets an incorrect baseuri: " ^ buri);
+            (try 
+              ignore(Http_getter.resolve u)
+            with
+            | Http_getter_types.Unresolvable_URI _ -> 
+                MatitaLog.error (file ^ " sets an unresolvable baseuri: "^buri)
+            | Http_getter_types.Key_not_found _ -> ());
+            uri := Some u;
+            raise End_of_file
+        | None -> ()
+      with
+        CicNotationParser.Parse_error _ as exn ->
+          prerr_endline ("Unable to parse: " ^ file);
+          prerr_endline (MatitaExcPp.to_string exn);
+          ()
+    done
+  with End_of_file -> close_in ic);
+  match !uri with
+  | Some uri -> uri
+  | None -> failwith ("No baseuri defined in " ^ file)
+
+let is_empty buri =
+ List.for_all
+  (function
+      Http_getter_types.Ls_section _ -> true
+    | Http_getter_types.Ls_object _ -> false)
+  (Http_getter.ls (Http_getter_misc.strip_trailing_slash buri ^ "/"))
+
+let safe_remove fname = if Sys.file_exists fname then Sys.remove fname
+
+let is_dir_empty d =
+  try 
+    let od = Unix.opendir d in
+    try 
+      ignore (Unix.readdir od);
+      ignore (Unix.readdir od);
+      ignore (Unix.readdir od);
+      Unix.closedir od;
+      false
+    with End_of_file -> 
+      Unix.closedir od;
+      true
+  with Unix.Unix_error _ -> true
+
+let safe_rmdir d = try Unix.rmdir d with Unix.Unix_error _ -> ()
+
+let rec rmdir_descend d = 
+  if is_dir_empty d then
+    begin
+      safe_rmdir d;
+      rmdir_descend (Filename.dirname d)
+    end
+
+let absolute_path file =
+  if file.[0] = '/' then file else Unix.getcwd () ^ "/" ^ file
+  
 let is_proof_script fname = true  (** TODO Zack *)
 let is_proof_object fname = true  (** TODO Zack *)
 
@@ -45,17 +115,16 @@ let append_phrase_sep s =
   else
     s
 
-let strip_trailing_blanks =
-  let rex = Pcre.regexp "\\s*$" in
-  fun s -> Pcre.replace ~rex s
+let empty_mathml = lazy (
+  DomMisc.domImpl#createDocument ~namespaceURI:(Some DomMisc.mathml_ns)
+    ~qualifiedName:(Gdome.domString "math") ~doctype:None)
 
-let empty_mathml () =
-  Misc.domImpl#createDocument ~namespaceURI:(Some Misc.mathml_ns)
-    ~qualifiedName:(Gdome.domString "math") ~doctype:None
+let empty_boxml = lazy (
+  DomMisc.domImpl#createDocument ~namespaceURI:(Some DomMisc.boxml_ns) 
+    ~qualifiedName:(Gdome.domString "box") ~doctype:None)
 
-let empty_boxml () =
-  Misc.domImpl#createDocument ~namespaceURI:(Some Misc.boxml_ns)
-    ~qualifiedName:(Gdome.domString "box") ~doctype:None
+let closed_goal_mathml = lazy (
+  DomMisc.domImpl#createDocumentFromURI ~uri:BuildTimeConf.closed_xml ())
 
 exception History_failure
 
@@ -68,17 +137,30 @@ class type ['a] history =
     method previous : 'a
     method load: 'a memento -> unit
     method save: 'a memento
+    method is_begin: bool
+    method is_end: bool
   end
 
+class basic_history (head, tail, cur) =
+  object
+    val mutable hd = head  (* insertion point *)
+    val mutable tl = tail (* oldest inserted item *)
+    val mutable cur = cur  (* current item for the history *)
+    
+    method is_begin = cur <= tl
+    method is_end = cur >= hd
+  end
+  
+  
 class shell_history size =
   let size = size + 1 in
   let decr x = let x' = x - 1 in if x' < 0 then size + x' else x' in
   let incr x = (x + 1) mod size in
   object (self)
     val data = Array.create size ""
-    val mutable hd = 0  (* insertion point *)
-    val mutable tl = -1 (* oldest inserted item *)
-    val mutable cur = -1  (* current item for the history *)
+
+    inherit basic_history (0, -1 , -1)
+    
     method add s =
       data.(hd) <- s;
       if tl = -1 then tl <- hd;
@@ -104,9 +186,9 @@ class ['a] browser_history ?memento size init =
   object (self)
     initializer match memento with Some m -> self#load m | _ -> ()
     val data = Array.create size init
-    val mutable hd = 0
-    val mutable tl = 0
-    val mutable cur = 0
+
+    inherit basic_history (0, 0, 0)
+    
     method previous =
       if cur = tl then raise History_failure;
       cur <- cur - 1;
@@ -118,12 +200,15 @@ class ['a] browser_history ?memento size init =
       if cur = size then cur <- 0;
       data.(cur)
     method add (e:'a) =
-      cur <- cur + 1;
-      if cur = size then cur <- 0;
-      if cur = tl then tl <- tl + 1;
-      if tl = size then tl <- 0;
-      hd <- cur;
-      data.(cur) <- e
+      if e <> data.(cur) then
+        begin
+          cur <- cur + 1;
+          if cur = size then cur <- 0;
+          if cur = tl then tl <- tl + 1;
+          if tl = size then tl <- 0;
+          hd <- cur;
+          data.(cur) <- e
+        end
     method load (data', hd', tl', cur') =
       assert (Array.length data = Array.length data');
       hd <- hd'; tl <- tl'; cur <- cur';
@@ -131,19 +216,76 @@ class ['a] browser_history ?memento size init =
     method save = (Array.copy data, hd, tl, cur)
   end
 
-let dbd_instance =
-  let dbd = lazy (
-    Mysql.quick_connect
-      ~host:(Helm_registry.get "db.host")
-      ~user:(Helm_registry.get "db.user")
-      ~database:(Helm_registry.get "db.database")
-      ())
-  in
-  fun () -> Lazy.force dbd
-
 let singleton f =
   let instance = lazy (f ()) in
   fun () -> Lazy.force instance
 
-let mkdirs = List.iter (fun d -> ignore (Unix.system ("mkdir -p " ^ d)))
+let get_current_proof status =
+  match status.proof_status with
+  | Incomplete_proof { proof = p } -> p
+  | _ -> statement_error "no ongoing proof"
+
+let get_proof_metasenv status =
+  match status.proof_status with
+  | No_proof -> []
+  | Proof (_, metasenv, _, _)
+  | Incomplete_proof { proof = (_, metasenv, _, _) }
+  | Intermediate metasenv ->
+      metasenv
+
+let get_proof_context status goal =
+  match status.proof_status with
+  | Incomplete_proof { proof = (_, metasenv, _, _) } ->
+      let (_, context, _) = CicUtil.lookup_meta goal metasenv in
+      context
+  | _ -> []
+ 
+let get_proof_conclusion status goal =
+  match status.proof_status with
+  | Incomplete_proof { proof = (_, metasenv, _, _) } ->
+      let (_, _, conclusion) = CicUtil.lookup_meta goal metasenv in
+      conclusion
+  | _ -> statement_error "no ongoing proof"
+
+let get_stack status =
+  match status.proof_status with
+  | Incomplete_proof p -> p.stack
+  | Proof _ -> Continuationals.Stack.empty
+  | _ -> assert false
+
+let set_stack stack status =
+  match status.proof_status with
+  | Incomplete_proof p ->
+      { status with proof_status = Incomplete_proof { p with stack = stack } }
+  | Proof _ ->
+      assert (Continuationals.Stack.is_empty stack);
+      status
+  | _ -> assert false
+ 
+let qualify status name = get_string_option status "baseuri" ^ "/" ^ name
+
+let image_path n = sprintf "%s/%s" BuildTimeConf.images_dir n
+
+let end_ma_RE = Pcre.regexp "\\.ma$"
+
+let obj_file_of_baseuri baseuri =
+ let path =
+  Helm_registry.get "matita.basedir" ^ "/xml" ^
+   Pcre.replace ~pat:"^cic:" ~templ:"" baseuri
+ in
+  path ^ ".moo"
+
+let obj_file_of_script f =
+ if f = "coq.ma" then BuildTimeConf.coq_notation_script else
+  let baseuri = baseuri_of_file f in
+   obj_file_of_baseuri baseuri
+
+let list_tl_at ?(equality=(==)) e l =
+  let rec aux =
+    function
+    | [] -> raise Not_found
+    | hd :: tl as l when equality hd e -> l
+    | hd :: tl -> aux tl
+  in
+  aux l