1 /* Values of numeric Unicode characters.
2 Copyright (C) 2002, 2006-2007, 2009-2017 Free Software Foundation, Inc.
3 Written by Bruno Haible <bruno@clisp.org>, 2002.
5 This program is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Lesser General Public License as published
7 by the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 /* Define u_numeric_values and u_numeric tables. */
27 uc_numeric_value (ucs4_t uc
)
29 unsigned int index1
= uc
>> numeric_header_0
;
30 if (index1
< numeric_header_1
)
32 int lookup1
= u_numeric
.level1
[index1
];
35 unsigned int index2
= (uc
>> numeric_header_2
) & numeric_header_3
;
36 int lookup2
= u_numeric
.level2
[lookup1
+ index2
];
39 unsigned int index3
= ((uc
& numeric_header_4
) + lookup2
) * 8;
40 /* level3 contains 8-bit values, packed into 16-bit words. */
41 unsigned int lookup3
=
42 ((u_numeric
.level3
[index3
>>4]
43 | (u_numeric
.level3
[(index3
>>4)+1] << 16))
47 return u_numeric_values
[lookup3
];
52 const uc_fraction_t default_value
= { 0, 0 };