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+/* Special casing table.
+ Copyright (C) 2009-2022 Free Software Foundation, Inc.
+ Written by Bruno Haible <bruno@clisp.org>, 2009.
+
+ This file is free software.
+ It is dual-licensed under "the GNU LGPLv3+ or the GNU GPLv2+".
+ You can redistribute it and/or modify it under either
+ - the terms of the GNU Lesser General Public License as published
+ by the Free Software Foundation, either version 3, or (at your
+ option) any later version, or
+ - the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 2, or (at your option)
+ any later version, or
+ - the same dual license "the GNU LGPLv3+ or the GNU GPLv2+".
+
+ This file 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
+ Lesser General Public License and the GNU General Public License
+ for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License and of the GNU General Public License along with this
+ program. If not, see <https://www.gnu.org/licenses/>. */
+
+#include <stddef.h>
+
+/* A special casing context.
+ A context is negated through x -> -x. */
+enum
+{
+ SCC_ALWAYS = 0,
+ SCC_FINAL_SIGMA = 1,
+ SCC_AFTER_SOFT_DOTTED = 2,
+ SCC_MORE_ABOVE = 3,
+ SCC_BEFORE_DOT = 4,
+ SCC_AFTER_I = 5
+};
+
+struct special_casing_rule
+{
+ /* The first two bytes are the code, in big-endian order. The third byte
+ only distinguishes different rules pertaining to the same code. */
+ /*unsigned*/ char code[3];
+
+ /* True when this rule is not the last one for the given code. */
+ /*bool*/ unsigned int has_next : 1;
+
+ /* Context. */
+ signed int context : 7;
+
+ /* Language, or an empty string. */
+ char language[2];
+
+ /* Mapping to upper case. Between 0 and 3 characters. Filled with 0s. */
+ unsigned short upper[3];
+
+ /* Mapping to lower case. Between 0 and 3 characters. Filled with 0s. */
+ unsigned short lower[3];
+
+ /* Mapping to title case. Between 0 and 3 characters. Filled with 0s. */
+ unsigned short title[3];
+
+ /* Casefolding mapping. Between 0 and 3 characters. Filled with 0s. */
+ unsigned short casefold[3];
+};
+
+extern const struct special_casing_rule *
+ gl_unicase_special_lookup (const char *str, size_t len);