/usr/x86_64-w64-mingw32/lib/ocaml/string.ml is in ocaml-mingw-w64-x86-64 4.01.0~20140328-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 | (***********************************************************************)
(* *)
(* OCaml *)
(* *)
(* Xavier Leroy, projet Cristal, 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. *)
(* *)
(***********************************************************************)
(* String operations *)
external length : string -> int = "%string_length"
external get : string -> int -> char = "%string_safe_get"
external set : string -> int -> char -> unit = "%string_safe_set"
external create : int -> string = "caml_create_string"
external unsafe_get : string -> int -> char = "%string_unsafe_get"
external unsafe_set : string -> int -> char -> unit = "%string_unsafe_set"
external unsafe_blit : string -> int -> string -> int -> int -> unit
= "caml_blit_string" "noalloc"
external unsafe_fill : string -> int -> int -> char -> unit
= "caml_fill_string" "noalloc"
let make n c =
let s = create n in
unsafe_fill s 0 n c;
s
let copy s =
let len = length s in
let r = create len in
unsafe_blit s 0 r 0 len;
r
let sub s ofs len =
if ofs < 0 || len < 0 || ofs > length s - len
then invalid_arg "String.sub"
else begin
let r = create len in
unsafe_blit s ofs r 0 len;
r
end
let fill s ofs len c =
if ofs < 0 || len < 0 || ofs > length s - len
then invalid_arg "String.fill"
else unsafe_fill s ofs len c
let blit s1 ofs1 s2 ofs2 len =
if len < 0 || ofs1 < 0 || ofs1 > length s1 - len
|| ofs2 < 0 || ofs2 > length s2 - len
then invalid_arg "String.blit"
else unsafe_blit s1 ofs1 s2 ofs2 len
let iter f a =
for i = 0 to length a - 1 do f(unsafe_get a i) done
let iteri f a =
for i = 0 to length a - 1 do f i (unsafe_get a i) done
let concat sep l =
match l with
[] -> ""
| hd :: tl ->
let num = ref 0 and len = ref 0 in
List.iter (fun s -> incr num; len := !len + length s) l;
let r = create (!len + length sep * (!num - 1)) in
unsafe_blit hd 0 r 0 (length hd);
let pos = ref(length hd) in
List.iter
(fun s ->
unsafe_blit sep 0 r !pos (length sep);
pos := !pos + length sep;
unsafe_blit s 0 r !pos (length s);
pos := !pos + length s)
tl;
r
external is_printable: char -> bool = "caml_is_printable"
external char_code: char -> int = "%identity"
external char_chr: int -> char = "%identity"
let is_space = function
| ' ' | '\012' | '\n' | '\r' | '\t' -> true
| _ -> false
let trim s =
let len = length s in
let i = ref 0 in
while !i < len && is_space (unsafe_get s !i) do
incr i
done;
let j = ref (len - 1) in
while !j >= !i && is_space (unsafe_get s !j) do
decr j
done;
if !i = 0 && !j = len - 1 then
s
else if !j >= !i then
sub s !i (!j - !i + 1)
else
""
let escaped s =
let n = ref 0 in
for i = 0 to length s - 1 do
n := !n +
(match unsafe_get s i with
| '"' | '\\' | '\n' | '\t' | '\r' | '\b' -> 2
| c -> if is_printable c then 1 else 4)
done;
if !n = length s then s else begin
let s' = create !n in
n := 0;
for i = 0 to length s - 1 do
begin
match unsafe_get s i with
| ('"' | '\\') as c ->
unsafe_set s' !n '\\'; incr n; unsafe_set s' !n c
| '\n' ->
unsafe_set s' !n '\\'; incr n; unsafe_set s' !n 'n'
| '\t' ->
unsafe_set s' !n '\\'; incr n; unsafe_set s' !n 't'
| '\r' ->
unsafe_set s' !n '\\'; incr n; unsafe_set s' !n 'r'
| '\b' ->
unsafe_set s' !n '\\'; incr n; unsafe_set s' !n 'b'
| c ->
if is_printable c then
unsafe_set s' !n c
else begin
let a = char_code c in
unsafe_set s' !n '\\';
incr n;
unsafe_set s' !n (char_chr (48 + a / 100));
incr n;
unsafe_set s' !n (char_chr (48 + (a / 10) mod 10));
incr n;
unsafe_set s' !n (char_chr (48 + a mod 10))
end
end;
incr n
done;
s'
end
let map f s =
let l = length s in
if l = 0 then s else begin
let r = create l in
for i = 0 to l - 1 do unsafe_set r i (f(unsafe_get s i)) done;
r
end
let uppercase s = map Char.uppercase s
let lowercase s = map Char.lowercase s
let apply1 f s =
if length s = 0 then s else begin
let r = copy s in
unsafe_set r 0 (f(unsafe_get s 0));
r
end
let capitalize s = apply1 Char.uppercase s
let uncapitalize s = apply1 Char.lowercase s
let rec index_rec s lim i c =
if i >= lim then raise Not_found else
if unsafe_get s i = c then i else index_rec s lim (i + 1) c;;
let index s c = index_rec s (length s) 0 c;;
let index_from s i c =
let l = length s in
if i < 0 || i > l then invalid_arg "String.index_from" else
index_rec s l i c;;
let rec rindex_rec s i c =
if i < 0 then raise Not_found else
if unsafe_get s i = c then i else rindex_rec s (i - 1) c;;
let rindex s c = rindex_rec s (length s - 1) c;;
let rindex_from s i c =
if i < -1 || i >= length s then invalid_arg "String.rindex_from" else
rindex_rec s i c;;
let contains_from s i c =
let l = length s in
if i < 0 || i > l then invalid_arg "String.contains_from" else
try ignore (index_rec s l i c); true with Not_found -> false;;
let contains s c = contains_from s 0 c;;
let rcontains_from s i c =
if i < 0 || i >= length s then invalid_arg "String.rcontains_from" else
try ignore (rindex_rec s i c); true with Not_found -> false;;
type t = string
let compare (x: t) (y: t) = Pervasives.compare x y
|