mirror of
https://git.zap.org.au/git/trader.git
synced 2024-11-03 17:27:29 -05:00
c0ca9b04da
These files have been created by running ./build-aux/bootstrap with Gnulib as at commit b1268f22f443e8e4b9e85ddf4e024875a2cd2030 (with a date stamp of Sun Jan 10 23:06:39 2021 +0100), Autoconf 2.69, Automake 1.16.3, Gettext 0.21 and pkg-config 0.29.2.
159 lines
3.6 KiB
C
159 lines
3.6 KiB
C
/* Convert multibyte character to wide character.
|
|
Copyright (C) 1999-2002, 2005-2021 Free Software Foundation, Inc.
|
|
Written by Bruno Haible <bruno@clisp.org>, 2008.
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>. */
|
|
|
|
#include <config.h>
|
|
|
|
/* Specification. */
|
|
#include <wchar.h>
|
|
|
|
#if GNULIB_defined_mbstate_t
|
|
/* Implement mbrtowc() on top of mbtowc() for the non-UTF-8 locales
|
|
and directly for the UTF-8 locales. */
|
|
|
|
# include <errno.h>
|
|
# include <stdint.h>
|
|
# include <stdlib.h>
|
|
|
|
# if defined _WIN32 && !defined __CYGWIN__
|
|
|
|
# define WIN32_LEAN_AND_MEAN /* avoid including junk */
|
|
# include <windows.h>
|
|
|
|
# elif HAVE_PTHREAD_API
|
|
|
|
# include <pthread.h>
|
|
# if HAVE_THREADS_H && HAVE_WEAK_SYMBOLS
|
|
# include <threads.h>
|
|
# pragma weak thrd_exit
|
|
# define c11_threads_in_use() (thrd_exit != NULL)
|
|
# else
|
|
# define c11_threads_in_use() 0
|
|
# endif
|
|
|
|
# elif HAVE_THREADS_H
|
|
|
|
# include <threads.h>
|
|
|
|
# endif
|
|
|
|
# include "attribute.h"
|
|
# include "verify.h"
|
|
# include "lc-charset-dispatch.h"
|
|
# include "mbtowc-lock.h"
|
|
|
|
verify (sizeof (mbstate_t) >= 4);
|
|
static char internal_state[4];
|
|
|
|
size_t
|
|
mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
|
|
{
|
|
# define FITS_IN_CHAR_TYPE(wc) ((wc) <= WCHAR_MAX)
|
|
# include "mbrtowc-impl.h"
|
|
}
|
|
|
|
#else
|
|
/* Override the system's mbrtowc() function. */
|
|
|
|
# if MBRTOWC_IN_C_LOCALE_MAYBE_EILSEQ
|
|
# include "hard-locale.h"
|
|
# include <locale.h>
|
|
# endif
|
|
|
|
# undef mbrtowc
|
|
|
|
size_t
|
|
rpl_mbrtowc (wchar_t *pwc, const char *s, size_t n, mbstate_t *ps)
|
|
{
|
|
size_t ret;
|
|
wchar_t wc;
|
|
|
|
# if MBRTOWC_NULL_ARG2_BUG || MBRTOWC_RETVAL_BUG || MBRTOWC_EMPTY_INPUT_BUG
|
|
if (s == NULL)
|
|
{
|
|
pwc = NULL;
|
|
s = "";
|
|
n = 1;
|
|
}
|
|
# endif
|
|
|
|
# if MBRTOWC_EMPTY_INPUT_BUG
|
|
if (n == 0)
|
|
return (size_t) -2;
|
|
# endif
|
|
|
|
if (! pwc)
|
|
pwc = &wc;
|
|
|
|
# if MBRTOWC_RETVAL_BUG
|
|
{
|
|
static mbstate_t internal_state;
|
|
|
|
/* Override mbrtowc's internal state. We cannot call mbsinit() on the
|
|
hidden internal state, but we can call it on our variable. */
|
|
if (ps == NULL)
|
|
ps = &internal_state;
|
|
|
|
if (!mbsinit (ps))
|
|
{
|
|
/* Parse the rest of the multibyte character byte for byte. */
|
|
size_t count = 0;
|
|
for (; n > 0; s++, n--)
|
|
{
|
|
ret = mbrtowc (&wc, s, 1, ps);
|
|
|
|
if (ret == (size_t)(-1))
|
|
return (size_t)(-1);
|
|
count++;
|
|
if (ret != (size_t)(-2))
|
|
{
|
|
/* The multibyte character has been completed. */
|
|
*pwc = wc;
|
|
return (wc == 0 ? 0 : count);
|
|
}
|
|
}
|
|
return (size_t)(-2);
|
|
}
|
|
}
|
|
# endif
|
|
|
|
# if MBRTOWC_STORES_INCOMPLETE_BUG
|
|
ret = mbrtowc (&wc, s, n, ps);
|
|
if (ret < (size_t) -2 && pwc != NULL)
|
|
*pwc = wc;
|
|
# else
|
|
ret = mbrtowc (pwc, s, n, ps);
|
|
# endif
|
|
|
|
# if MBRTOWC_NUL_RETVAL_BUG
|
|
if (ret < (size_t) -2 && !*pwc)
|
|
return 0;
|
|
# endif
|
|
|
|
# if MBRTOWC_IN_C_LOCALE_MAYBE_EILSEQ
|
|
if ((size_t) -2 <= ret && n != 0 && ! hard_locale (LC_CTYPE))
|
|
{
|
|
unsigned char uc = *s;
|
|
*pwc = uc;
|
|
return 1;
|
|
}
|
|
# endif
|
|
|
|
return ret;
|
|
}
|
|
|
|
#endif
|