1 /* Test of wcwidth() function.
2 Copyright (C) 2007 Free Software Foundation, Inc.
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17 /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
27 #define ASSERT(expr) \
32 fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
43 /* Test width of ASCII characters. */
44 for (wc = 0x20; wc < 0x7F; wc++)
45 ASSERT (wcwidth (wc) == 1);
47 /* Switch to an UTF-8 locale. */
48 if (setlocale (LC_ALL, "fr_FR.UTF-8") != NULL)
50 /* Test width of ASCII characters. */
51 for (wc = 0x20; wc < 0x7F; wc++)
52 ASSERT (wcwidth (wc) == 1);
54 /* Test width of some non-spacing characters. */
55 ASSERT (wcwidth (0x0301) == 0);
56 ASSERT (wcwidth (0x05B0) == 0);
58 /* Test width of some format control characters. */
59 ASSERT (wcwidth (0x200E) <= 0);
60 ASSERT (wcwidth (0x2060) == 0);
61 #if 0 /* wchar_t may be only 16 bits. */
62 ASSERT (wcwidth (0xE0001) <= 0);
63 ASSERT (wcwidth (0xE0044) <= 0);
66 /* Test width of some zero width characters. */
67 ASSERT (wcwidth (0x200B) == 0);
68 ASSERT (wcwidth (0xFEFF) == 0);
70 /* Test width of some CJK characters. */
71 ASSERT (wcwidth (0x3000) == 2);
72 ASSERT (wcwidth (0xB250) == 2);
73 ASSERT (wcwidth (0xFF1A) == 2);
74 #if 0 /* wchar_t may be only 16 bits. */
75 ASSERT (wcwidth (0x20369) == 2);
76 ASSERT (wcwidth (0x2F876) == 2);