added split

[helm.git] / helm / matita / matitaMisc.ml

diff --git a/helm/matita/matitaMisc.ml b/helm/matita/matitaMisc.ml
index ab077d9238d60d0dbb2ef14278fc160ada0277d9..3ed1f001c2d17f5c2b185362b71f1fd0f0e443a8 100644 (file)
--- a/helm/matita/matitaMisc.ml
+++ b/helm/matita/matitaMisc.ml
@@ -26,6 +26,58 @@
 open Printf
 open MatitaTypes 
 
+let strip_trailing_slash =
+  let rex = Pcre.regexp "/$" in
+  fun s -> Pcre.replace ~rex s
+
+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 = Stream.of_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 fname =
   try
     (Unix.stat fname).Unix.st_kind = Unix.S_DIR
@@ -44,6 +96,15 @@ let input_file fname =
   close_in ic;
   Buffer.contents buf
 
+let output_file data file = 
+  let oc = open_out file in
+  output_string oc data;
+  close_out oc
+
+
+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 *)
 
@@ -57,9 +118,17 @@ let strip_trailing_blanks =
   let rex = Pcre.regexp "\\s*$" in
   fun s -> Pcre.replace ~rex s
 
-let strip_trailing_slash =
-  let rex = Pcre.regexp "/$" in
-  fun s -> Pcre.replace ~rex s
+let split ?(char = ' ') s =
+  let pieces = ref [] in
+  let rec aux idx =
+    match (try Some (String.index_from s idx char) with Not_found -> None) with
+    | Some pos ->
+        pieces := String.sub s idx (pos - idx) :: !pieces;
+        aux (pos + 1)
+    | None -> pieces := String.sub s idx (String.length s - idx) :: !pieces
+  in
+  aux 0;
+  List.rev !pieces
 
 let empty_mathml () =
   DomMisc.domImpl#createDocument ~namespaceURI:(Some DomMisc.mathml_ns)
@@ -166,10 +235,21 @@ let singleton f =
 let mkdir d =
   let errmsg = sprintf "Unable to create directory \"%s\"" d in
   try
-    (match Unix.system ("mkdir -p " ^ d) with
+    let dir = "mkdir -p " ^ d in 
+    (match Unix.system dir with
     | Unix.WEXITED 0 -> ()
-    | _ -> failwith errmsg)
-  with Unix.Unix_error _ -> failwith errmsg
+    | Unix.WEXITED n -> 
+        MatitaLog.error ("'mkdir -p " ^ dir ^ "' failed with "^string_of_int n);
+        failwith errmsg
+    | Unix.WSIGNALED s 
+    | Unix.WSTOPPED s -> 
+        MatitaLog.error 
+          ("'mkdir -p " ^ dir ^ "' signaled with " ^ string_of_int s);
+        failwith errmsg)
+  with Unix.Unix_error _ as exc -> 
+    MatitaLog.error 
+      ("Unix error in makigin dir " ^ (MatitaExcPp.to_string exc));
+    failwith errmsg
 
 let get_proof_status status =
   match status.proof_status with
@@ -191,7 +271,7 @@ let get_proof_context status =
   | _ -> []
  
 let get_proof_aliases status = status.aliases
-  
+
 let qualify status name = get_string_option status "baseuri" ^ "/" ^ name
 
 let unopt = function None -> failwith "unopt: None" | Some v -> v
@@ -199,7 +279,17 @@ let unopt = function None -> failwith "unopt: None" | Some v -> v
 let image_path n = sprintf "%s/%s" BuildTimeConf.images_dir n
 
 let end_ma_RE = Pcre.regexp "\\.ma$"
-let obj_file_of_script f = Pcre.replace ~rex:end_ma_RE ~templ:".moo" f
+
+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 =
+ let baseuri = baseuri_of_file f in
+  obj_file_of_baseuri baseuri
 
 let rec list_uniq = function 
   | [] -> []
@@ -207,4 +297,9 @@ let rec list_uniq = function
   | h1::h2::tl when h1 = h2 -> list_uniq (h2 :: tl) 
   | h1::tl (* when h1 <> h2 *) -> h1 :: list_uniq tl
 
-let end_ma_RE = Pcre.regexp "\\.ma$"
+let debug_wrap name f =
+  prerr_endline (sprintf "debug_wrap: ==>> %s" name);
+  let res = f () in
+  prerr_endline (sprintf "debug_wrap: <<== %s" name);
+  res
+