-(* 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
*)
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
+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
+ with Unix.Unix_error _ -> false
+
+let is_regular fname =
+ try
+ (Unix.stat fname).Unix.st_kind = Unix.S_REG
+ with Unix.Unix_error _ -> false
let input_file fname =
let size = (Unix.stat fname).Unix.st_size in
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 empty_mathml () =
+ DomMisc.domImpl#createDocument ~namespaceURI:(Some DomMisc.mathml_ns)
+ ~qualifiedName:(Gdome.domString "math") ~doctype:None
+
+let empty_boxml () =
+ DomMisc.domImpl#createDocument ~namespaceURI:(Some DomMisc.boxml_ns)
+ ~qualifiedName:(Gdome.domString "box") ~doctype:None
+
+exception History_failure
+
+type 'a memento = 'a array * int * int * int (* data, hd, tl, cur *)
+
+class type ['a] history =
+ object
+ method add : 'a -> unit
+ method next : 'a
+ 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 ""
+
+ inherit basic_history (0, -1 , -1)
+
+ method add s =
+ data.(hd) <- s;
+ if tl = -1 then tl <- hd;
+ hd <- incr hd;
+ if hd = tl then tl <- incr tl;
+ cur <- hd
+ method previous =
+ if cur = tl then raise History_failure;
+ cur <- decr cur;
+ data.(cur)
+ method next =
+ if cur = hd then raise History_failure;
+ cur <- incr cur;
+ if cur = hd then "" else data.(cur)
+ method load (data', hd', tl', cur') =
+ assert (Array.length data = Array.length data');
+ hd <- hd'; tl <- tl'; cur <- cur';
+ Array.blit data' 0 data 0 (Array.length data')
+ method save = (Array.copy data, hd, tl, cur)
+ end
+
+class ['a] browser_history ?memento size init =
+ object (self)
+ initializer match memento with Some m -> self#load m | _ -> ()
+ val data = Array.create size init
+
+ inherit basic_history (0, 0, 0)
+
+ method previous =
+ if cur = tl then raise History_failure;
+ cur <- cur - 1;
+ if cur = ~-1 then cur <- size - 1;
+ data.(cur)
+ method next =
+ if cur = hd then raise History_failure;
+ cur <- cur + 1;
+ if cur = size then cur <- 0;
+ data.(cur)
+ method add (e:'a) =
+ 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';
+ Array.blit data' 0 data 0 (Array.length data')
+ method save = (Array.copy data, hd, tl, cur)
+ end
+
+let singleton f =
+ let instance = lazy (f ()) in
+ fun () -> Lazy.force instance
+
+let mkdir d =
+ let errmsg = sprintf "Unable to create directory \"%s\"" d in
+ try
+ (match Unix.system ("mkdir -p " ^ d) with
+ | Unix.WEXITED 0 -> ()
+ | _ -> failwith errmsg)
+ with Unix.Unix_error _ -> failwith errmsg
+
+let get_proof_status status =
+ match status.proof_status with
+ | Incomplete_proof s -> s
+ | _ -> statement_error "no ongoing proof"
+
+let get_proof_metasenv status =
+ match status.proof_status with
+ | No_proof -> []
+ | Incomplete_proof ((_, metasenv, _, _), _) -> metasenv
+ | Proof (_, metasenv, _, _) -> metasenv
+ | Intermediate m -> m
+
+let get_proof_context status =
+ match status.proof_status with
+ | Incomplete_proof ((_, metasenv, _, _), goal) ->
+ let (_, context, _) = CicUtil.lookup_meta goal metasenv in
+ context
+ | _ -> []
+
+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
+
+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 rec list_uniq = function
+ | [] -> []
+ | h::[] -> [h]
+ | h1::h2::tl when h1 = h2 -> list_uniq (h2 :: tl)
+ | h1::tl (* when h1 <> h2 *) -> h1 :: list_uniq tl
+
+let debug_wrap name f =
+ prerr_endline (sprintf "debug_wrap: ==>> %s" name);
+ let res = f () in
+ prerr_endline (sprintf "debug_wrap: <<== %s" name);
+ res
+
projects / helm.git / blobdiff