2 * Copyright (c) 2001 Alexey Zelkin <phantom@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
33 static const char nogrouping
[] = { CHAR_MAX
, '\0' };
36 * "3;3;-1" -> "\003\003\177"
40 __fix_locale_grouping_str(const char *str
) {
45 if (str
== NULL
|| *str
== '\0') {
49 for (src
= (char*)str
, dst
= (char*)str
; *src
!= '\0'; src
++) {
51 /* input string examples: "3;3", "3;2;-1" */
55 if (*src
== '-' && *(src
+1) == '1') {
61 if (!isdigit((unsigned char)*src
)) {
62 /* broken grouping string */
66 /* assume all numbers <= 99 */
68 if (isdigit((unsigned char)*(src
+1))) {
75 /* NOTE: assume all input started with "0" as 'no grouping' */
77 return (dst
== (char*)str
) ? nogrouping
: str
;