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/* Localization of proper names.
Copyright 2023-2026 Free Software Foundation, Inc.
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 "propername.h"
#include "gettext.h"
#if HAVE_UCHAR_H
# include <uchar.h>
/* There is no need for the dependency hassle of replacing glibc mbrtoc32,
as we don't care whether the C locale treats a byte with the high
bit set as an encoding error. */
# ifdef __GLIBC__
# undef mbrtoc32
# endif
#endif
/* Return the localization of the name spelled NAME_ASCII in ASCII,
and NAME_UTF8 in UTF-8. */
char const *
proper_name_lite (char const *name_ascii, _GL_UNUSED char const *name_utf8)
{
char const *translation = gettext (name_ascii);
if (translation != name_ascii)
return translation;
#if HAVE_UCHAR_H
/* If DF BF decodes to 07FF, assume it is UTF-8. */
static char const utf07FF[] = { 0xDF, 0xBF };
char32_t w;
mbstate_t mbs; mbszero (&mbs);
if (mbrtoc32 (&w, utf07FF, 2, &mbs) == 2 && w == 0x07FF)
return name_utf8;
#endif
return name_ascii;
}
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