/src/libunistring/lib/unicase/simple-mapping.h
Line | Count | Source (jump to first uncovered line) |
1 | | /* Simple case mapping for Unicode characters. |
2 | | Copyright (C) 2002, 2006, 2009-2024 Free Software Foundation, Inc. |
3 | | Written by Bruno Haible <bruno@clisp.org>, 2009. |
4 | | |
5 | | This file is free software: you can redistribute it and/or modify |
6 | | it under the terms of the GNU Lesser General Public License as |
7 | | published by the Free Software Foundation; either version 2.1 of the |
8 | | License, or (at your option) any later version. |
9 | | |
10 | | This file 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 |
13 | | GNU Lesser General Public License for more details. |
14 | | |
15 | | You should have received a copy of the GNU Lesser General Public License |
16 | | along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
17 | | |
18 | | ucs4_t |
19 | | FUNC (ucs4_t uc) |
20 | 0 | { |
21 | 0 | unsigned int index1 = uc >> mapping_header_0; |
22 | 0 | if (index1 < mapping_header_1) |
23 | 0 | { |
24 | 0 | int lookup1 = u_mapping.level1[index1]; |
25 | 0 | if (lookup1 >= 0) |
26 | 0 | { |
27 | 0 | unsigned int index2 = (uc >> mapping_header_2) & mapping_header_3; |
28 | 0 | int lookup2 = u_mapping.level2[lookup1 + index2]; |
29 | 0 | if (lookup2 >= 0) |
30 | 0 | { |
31 | 0 | unsigned int index3 = (uc & mapping_header_4); |
32 | 0 | int lookup3 = u_mapping.level3[lookup2 + index3]; |
33 | |
|
34 | 0 | return uc + lookup3; |
35 | 0 | } |
36 | 0 | } |
37 | 0 | } |
38 | 0 | return uc; |
39 | 0 | } |