mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
bb815eafaf
We now have implement all of Musl's localization code, the same way that Musl implements localization. You may need setlocale(LC_ALL, "C.UTF-8"), just in case anything stops working as expected.
94 lines
4.6 KiB
C
94 lines
4.6 KiB
C
/*-*- mode:c;indent-tabs-mode:t;c-basic-offset:8;tab-width:8;coding:utf-8 -*-│
|
|
│ vi: set noet ft=c ts=8 sw=8 fenc=utf-8 :vi │
|
|
╚──────────────────────────────────────────────────────────────────────────────╝
|
|
│ │
|
|
│ Musl Libc │
|
|
│ Copyright © 2005-2014 Rich Felker, et al. │
|
|
│ │
|
|
│ Permission is hereby granted, free of charge, to any person obtaining │
|
|
│ a copy of this software and associated documentation files (the │
|
|
│ "Software"), to deal in the Software without restriction, including │
|
|
│ without limitation the rights to use, copy, modify, merge, publish, │
|
|
│ distribute, sublicense, and/or sell copies of the Software, and to │
|
|
│ permit persons to whom the Software is furnished to do so, subject to │
|
|
│ the following conditions: │
|
|
│ │
|
|
│ The above copyright notice and this permission notice shall be │
|
|
│ included in all copies or substantial portions of the Software. │
|
|
│ │
|
|
│ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, │
|
|
│ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF │
|
|
│ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. │
|
|
│ IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY │
|
|
│ CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, │
|
|
│ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE │
|
|
│ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. │
|
|
│ │
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
#include "libc/runtime/runtime.h"
|
|
#include "libc/str/str.h"
|
|
#include "libc/str/locale.internal.h"
|
|
__static_yoink("musl_libc_notice");
|
|
|
|
#define malloc _mapanon
|
|
#define calloc undef
|
|
#define realloc undef
|
|
#define free undef
|
|
|
|
static int default_locale_init_done;
|
|
static struct __locale_struct default_locale, default_ctype_locale;
|
|
|
|
int __loc_is_allocated(locale_t loc)
|
|
{
|
|
return loc && loc != C_LOCALE && loc != UTF8_LOCALE
|
|
&& loc != &default_locale && loc != &default_ctype_locale;
|
|
}
|
|
|
|
static locale_t do_newlocale(int mask, const char *name, locale_t loc)
|
|
{
|
|
struct __locale_struct tmp;
|
|
|
|
for (int i=0; i<LC_ALL; i++) {
|
|
tmp.cat[i] = (!(mask & (1<<i)) && loc) ? loc->cat[i] :
|
|
__get_locale(i, (mask & (1<<i)) ? name : "");
|
|
if (tmp.cat[i] == LOC_MAP_FAILED)
|
|
return 0;
|
|
}
|
|
|
|
/* For locales with allocated storage, modify in-place. */
|
|
if (__loc_is_allocated(loc)) {
|
|
*loc = tmp;
|
|
return loc;
|
|
}
|
|
|
|
/* Otherwise, first see if we can use one of the builtin locales.
|
|
* This makes the common usage case for newlocale, getting a C locale
|
|
* with predictable behavior, very fast, and more importantly, fail-safe. */
|
|
if (!memcmp(&tmp, C_LOCALE, sizeof tmp)) return C_LOCALE;
|
|
if (!memcmp(&tmp, UTF8_LOCALE, sizeof tmp)) return UTF8_LOCALE;
|
|
|
|
/* And provide builtins for the initial default locale, and a
|
|
* variant of the C locale honoring the default locale's encoding. */
|
|
if (!default_locale_init_done) {
|
|
for (int i=0; i<LC_ALL; i++)
|
|
default_locale.cat[i] = __get_locale(i, "");
|
|
default_ctype_locale.cat[LC_CTYPE] = default_locale.cat[LC_CTYPE];
|
|
default_locale_init_done = 1;
|
|
}
|
|
if (!memcmp(&tmp, &default_locale, sizeof tmp)) return &default_locale;
|
|
if (!memcmp(&tmp, &default_ctype_locale, sizeof tmp))
|
|
return &default_ctype_locale;
|
|
|
|
/* If no builtin locale matched, attempt to allocate and copy. */
|
|
if ((loc = malloc(sizeof *loc))) *loc = tmp;
|
|
|
|
return loc;
|
|
}
|
|
|
|
locale_t newlocale(int mask, const char *name, locale_t loc)
|
|
{
|
|
pthread_mutex_lock(&__locale_lock);
|
|
loc = do_newlocale(mask, name, loc);
|
|
pthread_mutex_unlock(&__locale_lock);
|
|
return loc;
|
|
}
|