1 /* Test of wcwidth() function.
2 Copyright (C) 2007-2018 Free Software Foundation, Inc.
3
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.
8
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.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
16
17 /* Written by Bruno Haible <bruno@clisp.org>, 2007. */
18
19 #include <config.h>
20
21 #include <wchar.h>
22
23 #include "signature.h"
24 SIGNATURE_CHECK (wcwidth, int, (wchar_t));
25
26 #include <locale.h>
27 #include <string.h>
28
29 #include "c-ctype.h"
30 #include "localcharset.h"
31 #include "macros.h"
32
33 int
main()34 main ()
35 {
36 wchar_t wc;
37
38 #if !GNULIB_WCHAR_SINGLE
39 # ifdef C_CTYPE_ASCII
40 /* Test width of ASCII characters. */
41 for (wc = 0x20; wc < 0x7F; wc++)
42 ASSERT (wcwidth (wc) == 1);
43 # endif
44 #endif
45
46 /* Switch to an UTF-8 locale. */
47 if (setlocale (LC_ALL, "fr_FR.UTF-8") != NULL
48 /* Check whether it's really an UTF-8 locale.
49 On OpenBSD 4.0, the setlocale call succeeds only for the LC_CTYPE
50 category and therefore returns "C/fr_FR.UTF-8/C/C/C/C", but the
51 LC_CTYPE category is effectively set to an ASCII LC_CTYPE category;
52 in particular, locale_charset() returns "ASCII". */
53 && strcmp (locale_charset (), "UTF-8") == 0)
54 {
55 /* Test width of ASCII characters. */
56 for (wc = 0x20; wc < 0x7F; wc++)
57 ASSERT (wcwidth (wc) == 1);
58
59 /* Test width of some non-spacing characters. */
60 ASSERT (wcwidth (0x0301) == 0);
61 ASSERT (wcwidth (0x05B0) == 0);
62
63 /* Test width of some format control characters. */
64 ASSERT (wcwidth (0x200E) <= 0);
65 ASSERT (wcwidth (0x2060) <= 0);
66 #if 0 /* wchar_t may be only 16 bits. */
67 ASSERT (wcwidth (0xE0001) <= 0);
68 ASSERT (wcwidth (0xE0044) <= 0);
69 #endif
70
71 /* Test width of some zero width characters. */
72 ASSERT (wcwidth (0x200B) == 0);
73 ASSERT (wcwidth (0xFEFF) <= 0);
74
75 /* Test width of some CJK characters. */
76 ASSERT (wcwidth (0x3000) == 2);
77 ASSERT (wcwidth (0xB250) == 2);
78 ASSERT (wcwidth (0xFF1A) == 2);
79 #if 0 /* wchar_t may be only 16 bits. */
80 ASSERT (wcwidth (0x20369) == 2);
81 ASSERT (wcwidth (0x2F876) == 2);
82 #endif
83 }
84
85 return 0;
86 }
87