mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 03:27:39 +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.
83 lines
3.4 KiB
C
83 lines
3.4 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 <wchar.h>
|
|
__static_yoink("musl_libc_notice");
|
|
|
|
size_t wcsrtombs(char *restrict s, const wchar_t **restrict ws, size_t n, mbstate_t *restrict st)
|
|
{
|
|
const wchar_t *ws2;
|
|
char buf[4];
|
|
size_t N = n, l;
|
|
if (!s) {
|
|
for (n=0, ws2=*ws; *ws2; ws2++) {
|
|
if (*ws2 >= 0x80u) {
|
|
l = wcrtomb(buf, *ws2, 0);
|
|
if (!(l+1)) return -1;
|
|
n += l;
|
|
} else n++;
|
|
}
|
|
return n;
|
|
}
|
|
while (n>=4) {
|
|
if (**ws-1u >= 0x7fu) {
|
|
if (!**ws) {
|
|
*s = 0;
|
|
*ws = 0;
|
|
return N-n;
|
|
}
|
|
l = wcrtomb(s, **ws, 0);
|
|
if (!(l+1)) return -1;
|
|
s += l;
|
|
n -= l;
|
|
} else {
|
|
*s++ = **ws;
|
|
n--;
|
|
}
|
|
(*ws)++;
|
|
}
|
|
while (n) {
|
|
if (**ws-1u >= 0x7fu) {
|
|
if (!**ws) {
|
|
*s = 0;
|
|
*ws = 0;
|
|
return N-n;
|
|
}
|
|
l = wcrtomb(buf, **ws, 0);
|
|
if (!(l+1)) return -1;
|
|
if (l>n) return N-n;
|
|
wcrtomb(s, **ws, 0);
|
|
s += l;
|
|
n -= l;
|
|
} else {
|
|
*s++ = **ws;
|
|
n--;
|
|
}
|
|
(*ws)++;
|
|
}
|
|
return N;
|
|
}
|