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diff --git a/components/getter/http_getter_misc.mli b/components/getter/http_getter_misc.mli
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+(*
+ * Copyright (C) 2003-2004:
+ *    Stefano Zacchiroli <zack@cs.unibo.it>
+ *    for the HELM Team http://helm.cs.unibo.it/
+ *
+ *  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://helm.cs.unibo.it/
+ *)
+
+ (** 'mkdir' failed, arguments are: name of the directory to be created and
+ failure reason *)
+exception Mkdir_failure of string * string
+
+  (** @return Some localpart for URI belonging to the "file://" scheme, None for
+  * other URIs
+  * removes trailing ".gz", if any
+  * e.g.: local_url "file:///etc/passwd.gz" = Some "/etc/passwd"
+  *       local_url "http://...." = None *)
+val local_url: string -> string option
+
+ (** "fold_left" like function on file lines, trailing newline is not passed to
+ the given function *)
+val fold_file : (string -> 'a -> 'a) -> 'a -> string -> 'a
+
+ (* "iter" like function on file lines, trailing newline is not passed to the
+ given function *)
+val iter_file : (string -> unit) -> string -> unit
+
+ (* "iter" like function on file data chunks of fixed size *)
+val iter_file_data: (string -> unit) -> string -> unit
+
+  (** like Hashtbl.fold but keys are processed ordered *)
+val hashtbl_sorted_fold :
+  ('a -> 'b -> 'c -> 'c) -> ('a, 'b) Hashtbl.t -> 'c -> 'c
+  (** like Hashtbl.iter but keys are processed ordered *)
+val hashtbl_sorted_iter : ('a -> 'b -> unit) -> ('a, 'b) Hashtbl.t -> unit
+
+val list_uniq: 'a list -> 'a list (* uniq unix filter on lists *)
+
+  (** cp frontend *)
+val cp: string -> string -> unit
+  (** wget frontend, if output is given it is the destination file, otherwise
+  standard wget rules are used. Additionally this function support also the
+  "file://" scheme for file system addressing *)
+val wget: ?output: string -> string -> unit
+  (** gzip frontend. If keep = true original file will be kept, default is
+  false. output is the file on which gzipped data will be saved, default is
+  given file with an added ".gz" suffix *)
+val gzip: ?keep: bool -> ?output: string -> string -> unit
+  (** gunzip frontend. If keep = true original file will be kept, default is
+  false. output is the file on which gunzipped data will be saved, default is
+  given file name without trailing ".gz" *)
+val gunzip: ?keep: bool -> ?output: string -> string -> unit
+  (** tempfile frontend, return the name of created file. A special purpose
+  suffix is used (actually "_http_getter" *)
+val tempfile: unit -> string
+  (** mkdir frontend, if parents = true also parent directories will be created.
+  If the given directory already exists doesn't act.
+  parents defaults to false *)
+val mkdir: ?parents:bool -> string -> unit
+
+  (** pretty printer for Unix.process_status values *)
+val string_of_proc_status : Unix.process_status -> string
+
+  (** raw URL downloader, return Some the contents of downloaded resource or
+  None if an error occured while downloading. This function support also
+  "file://" scheme for filesystem resources *)
+val http_get: string -> string option
+
+  (** true on blanks-only and #-commented lines, false otherwise *)
+val is_blank_line: string -> bool
+
+val normalize_dir: string -> string (** add trailing "/" if missing *)
+val strip_trailing_slash: string -> string
+val strip_suffix: suffix:string -> string -> string
+
+val extension: string -> string  (** @return string part after rightmost "." *)
+
+val temp_file_of_uri: string -> string * out_channel
+
+  (** execute a command and return first line of what it prints on stdout *)
+val backtick: string -> string
+