1 | /* Charset name normalization. |
2 | Copyright (C) 2001-2018 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 2001. |
5 | |
6 | The GNU C Library is free software; you can redistribute it and/or |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either |
9 | version 2.1 of the License, or (at your option) any later version. |
10 | |
11 | The GNU C Library is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | Lesser General Public License for more details. |
15 | |
16 | You should have received a copy of the GNU Lesser General Public |
17 | License along with the GNU C Library; if not, see |
18 | <http://www.gnu.org/licenses/>. */ |
19 | |
20 | #include <ctype.h> |
21 | #include <locale.h> |
22 | |
23 | |
24 | static void |
25 | strip (char *wp, const char *s) |
26 | { |
27 | int slash_count = 0; |
28 | |
29 | while (*s != '\0') |
30 | { |
31 | if (__isalnum_l (*s, _nl_C_locobj_ptr) |
32 | || *s == '_' || *s == '-' || *s == '.' || *s == ',' || *s == ':') |
33 | *wp++ = __toupper_l (*s, _nl_C_locobj_ptr); |
34 | else if (*s == '/') |
35 | { |
36 | if (++slash_count == 3) |
37 | break; |
38 | *wp++ = '/'; |
39 | } |
40 | ++s; |
41 | } |
42 | |
43 | while (slash_count++ < 2) |
44 | *wp++ = '/'; |
45 | |
46 | *wp = '\0'; |
47 | } |
48 | |
49 | |
50 | static inline char * __attribute__ ((unused, always_inline)) |
51 | upstr (char *dst, const char *str) |
52 | { |
53 | char *cp = dst; |
54 | while ((*cp++ = __toupper_l (*str++, _nl_C_locobj_ptr)) != '\0') |
55 | /* nothing */; |
56 | return dst; |
57 | } |
58 | |