mirror of https://gitee.com/openkylin/wget.git
62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
/* Special casing table.
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Copyright (C) 2009-2019 Free Software Foundation, Inc.
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Written by Bruno Haible <bruno@clisp.org>, 2009.
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This program is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#include <stddef.h>
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/* A special casing context.
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A context is negated through x -> -x. */
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enum
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{
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SCC_ALWAYS = 0,
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SCC_FINAL_SIGMA = 1,
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SCC_AFTER_SOFT_DOTTED = 2,
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SCC_MORE_ABOVE = 3,
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SCC_BEFORE_DOT = 4,
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SCC_AFTER_I = 5
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};
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struct special_casing_rule
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{
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/* The first two bytes are the code, in big-endian order. The third byte
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only distinguishes different rules pertaining to the same code. */
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/*unsigned*/ char code[3];
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/* True when this rule is not the last one for the given code. */
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/*bool*/ unsigned int has_next : 1;
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/* Context. */
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signed int context : 7;
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/* Language, or an empty string. */
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char language[2];
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/* Mapping to upper case. Between 0 and 3 characters. Filled with 0s. */
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unsigned short upper[3];
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/* Mapping to lower case. Between 0 and 3 characters. Filled with 0s. */
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unsigned short lower[3];
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/* Mapping to title case. Between 0 and 3 characters. Filled with 0s. */
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unsigned short title[3];
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/* Casefolding mapping. Between 0 and 3 characters. Filled with 0s. */
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unsigned short casefold[3];
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};
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extern const struct special_casing_rule *
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gl_unicase_special_lookup (const char *str, size_t len);
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