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/* locale information
Copyright 2016-2021 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 <stdbool.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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