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/* Canonical combining classes of Unicode characters.
Copyright (C) 2011-2022 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2011.
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 <config.h>
/* Specification. */
#include "unictype.h"
#include <string.h>
#include "unictype/combiningclass_byname.h"
int
uc_combining_class_byname (const char *ccc_name)
{
size_t len;
len = strlen (ccc_name);
if (len <= MAX_WORD_LENGTH)
{
char buf[MAX_WORD_LENGTH + 1];
const struct named_combining_class *found;
/* Copy ccc_name into buf, converting '_' and '-' to ' '. */
{
const char *p = ccc_name;
char *q = buf;
for (;; p++, q++)
{
char c = *p;
if (c == '_' || c == '-')
c = ' ';
*q = c;
if (c == '\0')
break;
}
}
/* Here q == buf + len. */
/* Do a hash table lookup, with case-insensitive comparison. */
found = uc_combining_class_lookup (buf, len);
if (found != NULL)
return found->combining_class;
}
/* Invalid combining class name. */
return -1;
}
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