| 1 | /* locale information
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| 2 |
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| 3 | Copyright 2016-2022 Free Software Foundation, Inc.
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| 4 |
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| 5 | This program is free software; you can redistribute it and/or modify
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| 6 | it under the terms of the GNU General Public License as published by
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| 7 | the Free Software Foundation, either version 3, or (at your option)
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| 8 | any later version.
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| 9 |
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| 10 | This program is distributed in the hope that it will be useful,
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | GNU General Public License for more details.
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| 14 |
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| 15 | You should have received a copy of the GNU General Public License
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| 16 | along with this program; if not, write to the Free Software
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| 17 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
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| 18 | 02110-1301, USA. */
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| 19 |
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| 20 | /* Written by Paul Eggert. */
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| 21 |
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| 22 | #include <limits.h>
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| 23 | #include <wchar.h>
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| 24 |
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| 25 | struct localeinfo
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| 26 | {
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| 27 | /* MB_CUR_MAX > 1. */
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| 28 | bool multibyte;
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| 29 |
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| 30 | /* The locale is simple, like the C locale. These locales can be
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| 31 | processed more efficiently, as they are single-byte, their native
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| 32 | character set is in collating-sequence order, and they do not
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| 33 | have multi-character collating elements. */
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| 34 | bool simple;
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| 35 |
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| 36 | /* The locale uses UTF-8. */
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| 37 | bool using_utf8;
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| 38 |
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| 39 | /* An array indexed by byte values B that contains 1 if B is a
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| 40 | single-byte character, -1 if B is an encoding error, and -2 if B
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| 41 | is the leading byte of a multibyte character that contains more
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| 42 | than one byte. */
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| 43 | signed char sbclen[UCHAR_MAX + 1];
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| 44 |
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| 45 | /* An array indexed by byte values B that contains the corresponding
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| 46 | wide character (if any) for B if sbclen[B] == 1. WEOF means the
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| 47 | byte is not a valid single-byte character, i.e., sbclen[B] == -1
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| 48 | or -2. */
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| 49 | wint_t sbctowc[UCHAR_MAX + 1];
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| 50 | };
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| 51 |
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| 52 | extern void init_localeinfo (struct localeinfo *);
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| 53 |
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| 54 | /* Maximum number of characters that can be the case-folded
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| 55 | counterparts of a single character, not counting the character
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| 56 | itself. This is a generous upper bound. */
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| 57 | enum { CASE_FOLDED_BUFSIZE = 32 };
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| 58 |
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| 59 | extern int case_folded_counterparts (wint_t, wchar_t[CASE_FOLDED_BUFSIZE]);
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