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/* locale information
Copyright 2016-2023 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, 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, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
/* Written by Paul Eggert. */
#include <limits.h>
#include <wchar.h>
struct localeinfo
{
/* MB_CUR_MAX > 1. */
bool multibyte;
/* The locale is simple, like the C locale. These locales can be
processed more efficiently, as they are single-byte, their native
character set is in collating-sequence order, and they do not
have multi-character collating elements. */
bool simple;
/* The locale uses UTF-8. */
bool using_utf8;
/* An array indexed by byte values B that contains 1 if B is a
single-byte character, -1 if B is an encoding error, and -2 if B
is the leading byte of a multibyte character that contains more
than one byte. */
signed char sbclen[UCHAR_MAX + 1];
/* An array indexed by byte values B that contains the corresponding
wide character (if any) for B if sbclen[B] == 1. WEOF means the
byte is not a valid single-byte character, i.e., sbclen[B] == -1
or -2. */
wint_t sbctowc[UCHAR_MAX + 1];
};
extern void init_localeinfo (struct localeinfo *);
/* Maximum number of characters that can be the case-folded
counterparts of a single character, not counting the character
itself. This is a generous upper bound. */
enum { CASE_FOLDED_BUFSIZE = 32 };
extern int case_folded_counterparts (wint_t, wchar_t[CASE_FOLDED_BUFSIZE]);
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