pmt: initial 3.0.2 update

include/libgnulib/localeinfo.h

@@ -0,0 +1,74 @@
+/* locale information
+
+   Copyright 2016-2024 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, see <https://www.gnu.org/licenses/>.  */
+
+/* Written by Paul Eggert.  */
+
+#include <limits.h>
+#include <wchar.h>
+#if GAWK
+/* Use ISO C 99 API.  */
+# define char32_t wchar_t
+#else
+/* Use ISO C 11 + gnulib API.  */
+# include <uchar.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+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
+     32-bit 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, char32_t[CASE_FOLDED_BUFSIZE]);
+
+
+#ifdef __cplusplus
+}
+#endif