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/* Canonical combining classes of Unicode characters.
Copyright (C) 2002, 2006-2007, 2011 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2011.
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 3 of the License, 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
/* Specification. */
#include "unictype.h"
#include <stdlib.h>
static const signed char u_combining_class_index_part1[10] =
{
0, /* Not Reordered */
1, /* Overlay */
-1,
-1,
-1,
-1,
-1,
2, /* Nukta */
3, /* Kana Voicing */
4 /* Virama */
};
static const signed char u_combining_class_index_part2[241 - 200] =
{
5, /* Attached Below Left */
-1,
6, /* Attached Below */
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
-1,
7, /* Attached Above */
-1,
8, /* Attached Above Right */
-1,
9, /* Below Left */
-1,
10, /* Below */
-1,
11, /* Below Right */
-1,
12, /* Left */
-1,
13, /* Right */
-1,
14, /* Above Left */
-1,
15, /* Above */
-1,
16, /* Above Right */
17, /* Double Below */
18, /* Double Above */
-1,
-1,
-1,
-1,
-1,
19 /* Iota Subscript */
};
static const char u_combining_class_name[20][5] =
{
"NR", /* Not Reordered */
"OV", /* Overlay */
"NK", /* Nukta */
"KV", /* Kana Voicing */
"VR", /* Virama */
"ATBL", /* Attached Below Left */
"ATB", /* Attached Below */
"ATA", /* Attached Above */
"ATAR", /* Attached Above Right */
"BL", /* Below Left */
"B", /* Below */
"BR", /* Below Right */
"L", /* Left */
"R", /* Right */
"AL", /* Above Left */
"A", /* Above */
"AR", /* Above Right */
"DB", /* Double Below */
"DA", /* Double Above */
"IS" /* Iota Subscript */
};
const char *
uc_combining_class_name (int ccc)
{
if (ccc >= 0)
{
int index;
if (ccc < 10)
index = u_combining_class_index_part1[ccc];
else if (ccc >= 200 && ccc < 241)
index = u_combining_class_index_part2[ccc - 200];
else
return NULL;
if (index >= 0)
{
if (index < sizeof (u_combining_class_name) / sizeof (u_combining_class_name[0]))
return u_combining_class_name[index];
else
abort ();
}
}
return NULL;
}
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