HCoop / bpt / guile.git / blame
| Commit | Line | Data |
|---|---|---|
| c3b16a5d LC |
1 | /* Duplicate a locale object. |
| 2 | Copyright (C) 2009 Free Software Foundation, Inc. | |
| 3 | ||
| 4 | This program is free software: you can redistribute it and/or modify | |
| 5 | it under the terms of the GNU Lesser General Public License as published by | |
| 6 | the Free Software Foundation; either version 3 of the License, or | |
| 7 | (at your option) any later version. | |
| 8 | ||
| 9 | This program is distributed in the hope that it will be useful, | |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 | GNU Lesser General Public License for more details. | |
| 13 | ||
| 14 | You should have received a copy of the GNU Lesser General Public License | |
| 15 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
| 16 | ||
| 17 | /* Written by Bruno Haible <bruno@clisp.org>, 2007. */ | |
| 18 | ||
| 19 | #include <config.h> | |
| 20 | ||
| 21 | /* Specification. */ | |
| 22 | #include <locale.h> | |
| 23 | ||
| 24 | #include <errno.h> | |
| c3b16a5d LC |
25 | #include <string.h> |
| 26 | ||
| c3b16a5d LC |
27 | #define SIZEOF(a) (sizeof(a) / sizeof(a[0])) |
| 28 | ||
| 29 | #undef duplocale | |
| 30 | ||
| 31 | locale_t | |
| 32 | rpl_duplocale (locale_t locale) | |
| 33 | { | |
| 34 | /* Work around crash in the duplocale function in glibc < 2.12. | |
| 35 | See <http://sourceware.org/bugzilla/show_bug.cgi?id=10969>. */ | |
| 36 | if (locale == LC_GLOBAL_LOCALE) | |
| 37 | { | |
| 38 | /* Create a copy of the locale by fetching the name of each locale | |
| 39 | category, starting with LC_CTYPE. */ | |
| 40 | static struct { int cat; int mask; } categories[] = | |
| 41 | { | |
| 42 | { LC_NUMERIC, LC_NUMERIC_MASK }, | |
| 43 | { LC_TIME, LC_TIME_MASK }, | |
| 44 | { LC_COLLATE, LC_COLLATE_MASK }, | |
| 45 | { LC_MONETARY, LC_MONETARY_MASK }, | |
| 46 | { LC_MESSAGES, LC_MESSAGES_MASK } | |
| 47 | #ifdef LC_PAPER | |
| 48 | , { LC_PAPER, LC_PAPER_MASK } | |
| 49 | #endif | |
| 50 | #ifdef LC_NAME | |
| 51 | , { LC_NAME, LC_NAME_MASK } | |
| 52 | #endif | |
| 53 | #ifdef LC_ADDRESS | |
| 54 | , { LC_ADDRESS, LC_ADDRESS_MASK } | |
| 55 | #endif | |
| 56 | #ifdef LC_TELEPHONE | |
| 57 | , { LC_TELEPHONE, LC_TELEPHONE_MASK } | |
| 58 | #endif | |
| 59 | #ifdef LC_MEASUREMENT | |
| 60 | , { LC_MEASUREMENT, LC_MEASUREMENT_MASK } | |
| 61 | #endif | |
| 62 | #ifdef LC_IDENTIFICATION | |
| 63 | , { LC_IDENTIFICATION, LC_IDENTIFICATION_MASK } | |
| 64 | #endif | |
| 65 | }; | |
| 66 | const char *base_name; | |
| 67 | locale_t base_copy; | |
| 68 | unsigned int i; | |
| 69 | ||
| b3eba3b2 | 70 | base_name = setlocale (LC_CTYPE, NULL); |
| c3b16a5d LC |
71 | base_copy = newlocale (LC_ALL_MASK, base_name, NULL); |
| 72 | if (base_copy == NULL) | |
| 73 | return NULL; | |
| 74 | ||
| 75 | for (i = 0; i < SIZEOF (categories); i++) | |
| 76 | { | |
| 77 | int category = categories[i].cat; | |
| 78 | int category_mask = categories[i].mask; | |
| b3eba3b2 | 79 | const char *name = setlocale (category, NULL); |
| c3b16a5d LC |
80 | if (strcmp (name, base_name) != 0) |
| 81 | { | |
| 82 | locale_t copy = newlocale (category_mask, name, base_copy); | |
| 83 | if (copy == NULL) | |
| 84 | { | |
| 85 | int saved_errno = errno; | |
| 86 | freelocale (base_copy); | |
| 87 | errno = saved_errno; | |
| 88 | return NULL; | |
| 89 | } | |
| 90 | /* No need to call freelocale (base_copy) if copy != base_copy; | |
| 91 | the newlocale function already takes care of doing it. */ | |
| 92 | base_copy = copy; | |
| 93 | } | |
| 94 | } | |
| 95 | ||
| 96 | return base_copy; | |
| 97 | } | |
| 98 | ||
| 99 | return duplocale (locale); | |
| 100 | } |