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+/* Test of wcwidth() function.
+ Copyright (C) 2007-2008 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
+
+#include <config.h>
+
+#include <wchar.h>
+
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "localcharset.h"
+
+#define ASSERT(expr) \
+ do \
+ { \
+ if (!(expr)) \
+ { \
+ fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
+ fflush (stderr); \
+ abort (); \
+ } \
+ } \
+ while (0)
+
+int
+main ()
+{
+ wchar_t wc;
+
+ /* Test width of ASCII characters. */
+ for (wc = 0x20; wc < 0x7F; wc++)
+ ASSERT (wcwidth (wc) == 1);
+
+ /* Switch to an UTF-8 locale. */
+ if (setlocale (LC_ALL, "fr_FR.UTF-8") != NULL
+ /* Check whether it's really an UTF-8 locale.
+ On OpenBSD 4.0, the setlocale call succeeds only for the LC_CTYPE
+ category and therefore returns "C/fr_FR.UTF-8/C/C/C/C", but the
+ LC_CTYPE category is effectively set to an ASCII LC_CTYPE category;
+ in particular, locale_charset() returns "ASCII". */
+ && strcmp (locale_charset (), "UTF-8") == 0)
+ {
+ /* Test width of ASCII characters. */
+ for (wc = 0x20; wc < 0x7F; wc++)
+ ASSERT (wcwidth (wc) == 1);
+
+ /* Test width of some non-spacing characters. */
+ ASSERT (wcwidth (0x0301) == 0);
+ ASSERT (wcwidth (0x05B0) == 0);
+
+ /* Test width of some format control characters. */
+ ASSERT (wcwidth (0x200E) <= 0);
+ ASSERT (wcwidth (0x2060) <= 0);
+#if 0 /* wchar_t may be only 16 bits. */
+ ASSERT (wcwidth (0xE0001) <= 0);
+ ASSERT (wcwidth (0xE0044) <= 0);
+#endif
+
+ /* Test width of some zero width characters. */
+ ASSERT (wcwidth (0x200B) == 0);
+ ASSERT (wcwidth (0xFEFF) <= 0);
+
+ /* Test width of some CJK characters. */
+ ASSERT (wcwidth (0x3000) == 2);
+ ASSERT (wcwidth (0xB250) == 2);
+ ASSERT (wcwidth (0xFF1A) == 2);
+#if 0 /* wchar_t may be only 16 bits. */
+ ASSERT (wcwidth (0x20369) == 2);
+ ASSERT (wcwidth (0x2F876) == 2);
+#endif
+ }
+
+ return 0;
+}