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