215 lines
7.3 KiB
OCaml
215 lines
7.3 KiB
OCaml
(***********************************************************************)
|
|
(* *)
|
|
(* Objective Caml *)
|
|
(* *)
|
|
(* Xavier Leroy and Damien Doligez, INRIA Rocquencourt *)
|
|
(* *)
|
|
(* Copyright 1996 Institut National de Recherche en Informatique et *)
|
|
(* en Automatique. All rights reserved. This file is distributed *)
|
|
(* under the terms of the GNU Library General Public License, with *)
|
|
(* the special exception on linking described in file ../LICENSE. *)
|
|
(* *)
|
|
(***********************************************************************)
|
|
|
|
(* $Id$ *)
|
|
|
|
let generic_quote quotequote s =
|
|
let l = String.length s in
|
|
let b = Buffer.create (l + 20) in
|
|
Buffer.add_char b '\'';
|
|
for i = 0 to l - 1 do
|
|
if s.[i] = '\''
|
|
then Buffer.add_string b quotequote
|
|
else Buffer.add_char b s.[i]
|
|
done;
|
|
Buffer.add_char b '\'';
|
|
Buffer.contents b
|
|
|
|
module Unix = struct
|
|
let current_dir_name = "."
|
|
let parent_dir_name = ".."
|
|
let concat dirname filename =
|
|
let l = String.length dirname in
|
|
if l = 0 || dirname.[l-1] = '/'
|
|
then dirname ^ filename
|
|
else dirname ^ "/" ^ filename
|
|
let is_relative n = String.length n < 1 || n.[0] <> '/';;
|
|
let is_implicit n =
|
|
is_relative n
|
|
&& (String.length n < 2 || String.sub n 0 2 <> "./")
|
|
&& (String.length n < 3 || String.sub n 0 3 <> "../")
|
|
let check_suffix name suff =
|
|
String.length name >= String.length suff &&
|
|
String.sub name (String.length name - String.length suff)
|
|
(String.length suff) = suff
|
|
let basename name =
|
|
try
|
|
let p = String.rindex name '/' + 1 in
|
|
String.sub name p (String.length name - p)
|
|
with Not_found ->
|
|
name
|
|
let dirname name =
|
|
try
|
|
match String.rindex name '/' with
|
|
0 -> "/"
|
|
| n -> String.sub name 0 n
|
|
with Not_found ->
|
|
"."
|
|
let temporary_directory =
|
|
try Sys.getenv "TMPDIR" with Not_found -> "/tmp"
|
|
let quote = generic_quote "'\\''"
|
|
end
|
|
|
|
module Win32 = struct
|
|
let current_dir_name = "."
|
|
let parent_dir_name = ".."
|
|
let concat dirname filename =
|
|
let l = String.length dirname in
|
|
if l = 0 || (let c = dirname.[l-1] in c = '/' || c = '\\' || c = ':')
|
|
then dirname ^ filename
|
|
else dirname ^ "\\" ^ filename
|
|
let is_relative n =
|
|
(String.length n < 1 || n.[0] <> '/')
|
|
&& (String.length n < 1 || n.[0] <> '\\')
|
|
&& (String.length n < 2 || n.[1] <> ':')
|
|
let is_implicit n =
|
|
is_relative n
|
|
&& (String.length n < 2 || String.sub n 0 2 <> "./")
|
|
&& (String.length n < 2 || String.sub n 0 2 <> ".\\")
|
|
&& (String.length n < 3 || String.sub n 0 3 <> "../")
|
|
&& (String.length n < 3 || String.sub n 0 3 <> "..\\")
|
|
let check_suffix name suff =
|
|
String.length name >= String.length suff &&
|
|
(let s = String.sub name (String.length name - String.length suff)
|
|
(String.length suff) in
|
|
String.lowercase s = String.lowercase suff)
|
|
let rindexsep s =
|
|
let rec pos i =
|
|
if i < 0 then raise Not_found
|
|
else if (let c = s.[i] in c = '/' || c = '\\' || c = ':') then i
|
|
else pos (i - 1)
|
|
in pos (String.length s - 1)
|
|
let basename name =
|
|
try
|
|
let p = rindexsep name + 1 in
|
|
String.sub name p (String.length name - p)
|
|
with Not_found ->
|
|
name
|
|
let dirname name =
|
|
try
|
|
match rindexsep name with
|
|
0 -> "\\"
|
|
| n ->
|
|
let n =
|
|
if name.[n] = ':' || (n > 0 && name.[n-1] = ':')
|
|
then n+1 else n in
|
|
String.sub name 0 n
|
|
with Not_found ->
|
|
"."
|
|
let temporary_directory =
|
|
try Sys.getenv "TEMP" with Not_found -> "."
|
|
let quote s =
|
|
let l = String.length s in
|
|
let b = Buffer.create (l + 20) in
|
|
Buffer.add_char b '\"';
|
|
for i = 0 to l - 1 do
|
|
match s.[i] with
|
|
'\"' -> Buffer.add_string b "\\\""
|
|
| '\\' -> if i + 1 = l then Buffer.add_string b "\\\\"
|
|
else if s.[i + 1] = '\"' then Buffer.add_string b "\\\\\\\""
|
|
else Buffer.add_char b '\\'
|
|
| c -> Buffer.add_char b c
|
|
done;
|
|
Buffer.add_char b '\"';
|
|
Buffer.contents b
|
|
end
|
|
|
|
module Cygwin = struct
|
|
let current_dir_name = "."
|
|
let parent_dir_name = ".."
|
|
let concat dirname filename =
|
|
let l = String.length dirname in
|
|
if l = 0 || (let c = dirname.[l-1] in c = '/' || c = '\\' || c = ':')
|
|
then dirname ^ filename
|
|
else dirname ^ "/" ^ filename
|
|
let is_relative = Win32.is_relative
|
|
let is_implicit = Win32.is_implicit
|
|
let check_suffix = Win32.check_suffix
|
|
let basename = Win32.basename
|
|
let dirname name =
|
|
try
|
|
match Win32.rindexsep name with
|
|
0 -> "/"
|
|
| n ->
|
|
let n =
|
|
if name.[n] = ':' || (n > 0 && name.[n-1] = ':')
|
|
then n+1 else n in
|
|
String.sub name 0 n
|
|
with Not_found ->
|
|
"."
|
|
let temporary_directory = Unix.temporary_directory
|
|
let quote = Unix.quote
|
|
end
|
|
|
|
let (current_dir_name, parent_dir_name, concat, is_relative, is_implicit,
|
|
check_suffix, basename, dirname, temporary_directory, quote) =
|
|
match Sys.os_type with
|
|
"Unix" ->
|
|
(Unix.current_dir_name, Unix.parent_dir_name, Unix.concat,
|
|
Unix.is_relative, Unix.is_implicit, Unix.check_suffix,
|
|
Unix.basename, Unix.dirname, Unix.temporary_directory, Unix.quote)
|
|
| "Win32" ->
|
|
(Win32.current_dir_name, Win32.parent_dir_name, Win32.concat,
|
|
Win32.is_relative, Win32.is_implicit, Win32.check_suffix,
|
|
Win32.basename, Win32.dirname, Win32.temporary_directory, Win32.quote)
|
|
| "Cygwin" ->
|
|
(Cygwin.current_dir_name, Cygwin.parent_dir_name, Cygwin.concat,
|
|
Cygwin.is_relative, Cygwin.is_implicit, Cygwin.check_suffix,
|
|
Cygwin.basename, Cygwin.dirname,
|
|
Cygwin.temporary_directory, Cygwin.quote)
|
|
| _ -> assert false
|
|
|
|
let chop_suffix name suff =
|
|
let n = String.length name - String.length suff in
|
|
if n < 0 then invalid_arg "Filename.chop_suffix" else String.sub name 0 n
|
|
|
|
let chop_extension name =
|
|
try
|
|
String.sub name 0 (String.rindex name '.')
|
|
with Not_found ->
|
|
invalid_arg "Filename.chop_extension"
|
|
|
|
external open_desc: string -> open_flag list -> int -> int = "caml_sys_open"
|
|
external close_desc: int -> unit = "caml_sys_close"
|
|
|
|
let prng = Random.State.make_self_init ();;
|
|
|
|
let temp_file_name prefix suffix =
|
|
let rnd = (Random.State.bits prng) land 0xFFFFFF in
|
|
concat temporary_directory (Printf.sprintf "%s%06x%s" prefix rnd suffix)
|
|
;;
|
|
|
|
let temp_file prefix suffix =
|
|
let rec try_name counter =
|
|
if counter >= 1000 then
|
|
invalid_arg "Filename.temp_file: temp dir nonexistent or full";
|
|
let name = temp_file_name prefix suffix in
|
|
try
|
|
close_desc(open_desc name [Open_wronly; Open_creat; Open_excl] 0o600);
|
|
name
|
|
with Sys_error _ ->
|
|
try_name (counter + 1)
|
|
in try_name 0
|
|
|
|
let open_temp_file ?(mode = [Open_text]) prefix suffix =
|
|
let rec try_name counter =
|
|
if counter >= 1000 then
|
|
invalid_arg "Filename.open_temp_file: temp dir nonexistent or full";
|
|
let name = temp_file_name prefix suffix in
|
|
try
|
|
(name,
|
|
open_out_gen (Open_wronly::Open_creat::Open_excl::mode) 0o600 name)
|
|
with Sys_error _ ->
|
|
try_name (counter + 1)
|
|
in try_name 0
|